./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_233b2725-e8d4-4397-b14e-659c4aed64cb/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_233b2725-e8d4-4397-b14e-659c4aed64cb/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_233b2725-e8d4-4397-b14e-659c4aed64cb/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_233b2725-e8d4-4397-b14e-659c4aed64cb/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_233b2725-e8d4-4397-b14e-659c4aed64cb/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_233b2725-e8d4-4397-b14e-659c4aed64cb/bin/uautomizer-vX5HgA9Q3a --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 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 --- 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-b5237d8 [2022-11-21 16:08:21,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:08:21,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:08:21,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:08:21,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:08:21,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:08:21,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:08:21,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:08:21,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:08:21,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:08:21,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:08:21,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:08:21,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:08:21,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:08:21,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:08:21,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:08:21,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:08:21,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:08:21,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:08:21,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:08:21,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:08:21,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:08:21,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:08:21,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:08:21,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:08:21,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:08:21,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:08:21,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:08:21,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:08:21,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:08:21,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:08:21,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:08:21,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:08:21,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:08:21,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:08:21,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:08:21,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:08:21,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:08:21,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:08:21,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:08:21,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:08:21,302 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_233b2725-e8d4-4397-b14e-659c4aed64cb/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:08:21,336 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:08:21,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:08:21,337 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:08:21,337 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:08:21,338 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:08:21,341 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:08:21,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:08:21,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:08:21,342 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:08:21,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:08:21,343 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:08:21,344 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:08:21,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:08:21,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:08:21,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:08:21,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:08:21,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:08:21,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:08:21,345 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:08:21,345 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:08:21,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:08:21,345 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:08:21,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:08:21,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:08:21,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:08:21,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:08:21,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:08:21,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:08:21,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:08:21,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:08:21,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:08:21,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:08:21,348 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:08:21,348 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:08:21,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:08:21,349 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_233b2725-e8d4-4397-b14e-659c4aed64cb/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_233b2725-e8d4-4397-b14e-659c4aed64cb/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 [2022-11-21 16:08:21,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:08:21,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:08:21,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:08:21,644 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:08:21,644 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:08:21,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_233b2725-e8d4-4397-b14e-659c4aed64cb/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2022-11-21 16:08:24,819 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:08:25,155 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:08:25,156 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_233b2725-e8d4-4397-b14e-659c4aed64cb/sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2022-11-21 16:08:25,170 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_233b2725-e8d4-4397-b14e-659c4aed64cb/bin/uautomizer-vX5HgA9Q3a/data/d98ff22a8/05aa6665a5b24fe4b08a3598d185a220/FLAGab8b66149 [2022-11-21 16:08:25,185 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_233b2725-e8d4-4397-b14e-659c4aed64cb/bin/uautomizer-vX5HgA9Q3a/data/d98ff22a8/05aa6665a5b24fe4b08a3598d185a220 [2022-11-21 16:08:25,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:08:25,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:08:25,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:08:25,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:08:25,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:08:25,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:08:25" (1/1) ... [2022-11-21 16:08:25,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c869806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:25, skipping insertion in model container [2022-11-21 16:08:25,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:08:25" (1/1) ... [2022-11-21 16:08:25,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:08:25,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:08:25,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:08:25,870 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:08:25,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:08:26,021 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:08:26,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:26 WrapperNode [2022-11-21 16:08:26,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:08:26,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:08:26,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:08:26,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:08:26,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:26" (1/1) ... [2022-11-21 16:08:26,052 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:26" (1/1) ... [2022-11-21 16:08:26,081 INFO L138 Inliner]: procedures = 368, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 174 [2022-11-21 16:08:26,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:08:26,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:08:26,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:08:26,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:08:26,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:26" (1/1) ... [2022-11-21 16:08:26,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:26" (1/1) ... [2022-11-21 16:08:26,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:26" (1/1) ... [2022-11-21 16:08:26,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:26" (1/1) ... [2022-11-21 16:08:26,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:26" (1/1) ... [2022-11-21 16:08:26,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:26" (1/1) ... [2022-11-21 16:08:26,160 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:26" (1/1) ... [2022-11-21 16:08:26,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:26" (1/1) ... [2022-11-21 16:08:26,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:08:26,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:08:26,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:08:26,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:08:26,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:26" (1/1) ... [2022-11-21 16:08:26,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:08:26,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_233b2725-e8d4-4397-b14e-659c4aed64cb/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:08:26,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_233b2725-e8d4-4397-b14e-659c4aed64cb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:08:26,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_233b2725-e8d4-4397-b14e-659c4aed64cb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:08:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:08:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:08:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:08:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:08:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:08:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 16:08:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:08:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:08:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:08:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 16:08:26,244 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 16:08:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:08:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:08:26,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:08:26,246 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:08:26,395 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:08:26,414 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:08:27,092 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:08:27,102 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:08:27,102 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:08:27,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:08:27 BoogieIcfgContainer [2022-11-21 16:08:27,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:08:27,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:08:27,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:08:27,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:08:27,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:08:25" (1/3) ... [2022-11-21 16:08:27,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5405d669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:08:27, skipping insertion in model container [2022-11-21 16:08:27,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:26" (2/3) ... [2022-11-21 16:08:27,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5405d669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:08:27, skipping insertion in model container [2022-11-21 16:08:27,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:08:27" (3/3) ... [2022-11-21 16:08:27,114 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_03-list2_rc.i [2022-11-21 16:08:27,124 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:08:27,132 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:08:27,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-21 16:08:27,133 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:08:27,227 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:08:27,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 276 transitions, 557 flow [2022-11-21 16:08:27,397 INFO L130 PetriNetUnfolder]: 0/275 cut-off events. [2022-11-21 16:08:27,397 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:08:27,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 275 events. 0/275 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 155 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-21 16:08:27,405 INFO L82 GeneralOperation]: Start removeDead. Operand has 280 places, 276 transitions, 557 flow [2022-11-21 16:08:27,420 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 275 transitions, 553 flow [2022-11-21 16:08:27,440 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:08:27,449 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;@1237009c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:08:27,450 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-11-21 16:08:27,470 INFO L130 PetriNetUnfolder]: 0/39 cut-off events. [2022-11-21 16:08:27,471 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:08:27,471 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:27,472 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] [2022-11-21 16:08:27,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:27,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:27,481 INFO L85 PathProgramCache]: Analyzing trace with hash 453973923, now seen corresponding path program 1 times [2022-11-21 16:08:27,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:27,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031612246] [2022-11-21 16:08:27,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:27,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:28,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:28,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:28,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031612246] [2022-11-21 16:08:28,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031612246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:28,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:28,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:08:28,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542574818] [2022-11-21 16:08:28,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:28,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:08:28,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:28,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:08:28,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:08:28,483 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 276 [2022-11-21 16:08:28,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 275 transitions, 553 flow. Second operand has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:28,489 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:28,489 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 276 [2022-11-21 16:08:28,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:29,778 INFO L130 PetriNetUnfolder]: 864/2835 cut-off events. [2022-11-21 16:08:29,779 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 16:08:29,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4692 conditions, 2835 events. 864/2835 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17865 event pairs, 864 based on Foata normal form. 0/2474 useless extension candidates. Maximal degree in co-relation 4476. Up to 1838 conditions per place. [2022-11-21 16:08:29,798 INFO L137 encePairwiseOnDemand]: 258/276 looper letters, 109 selfloop transitions, 15 changer transitions 0/272 dead transitions. [2022-11-21 16:08:29,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 272 transitions, 795 flow [2022-11-21 16:08:29,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:08:29,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:08:29,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1021 transitions. [2022-11-21 16:08:29,824 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6165458937198067 [2022-11-21 16:08:29,824 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1021 transitions. [2022-11-21 16:08:29,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1021 transitions. [2022-11-21 16:08:29,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:29,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1021 transitions. [2022-11-21 16:08:29,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 170.16666666666666) internal successors, (1021), 6 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:29,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:29,853 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:29,855 INFO L175 Difference]: Start difference. First operand has 279 places, 275 transitions, 553 flow. Second operand 6 states and 1021 transitions. [2022-11-21 16:08:29,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 272 transitions, 795 flow [2022-11-21 16:08:29,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 272 transitions, 794 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:08:29,872 INFO L231 Difference]: Finished difference. Result has 280 places, 272 transitions, 576 flow [2022-11-21 16:08:29,874 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=576, PETRI_PLACES=280, PETRI_TRANSITIONS=272} [2022-11-21 16:08:29,880 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 1 predicate places. [2022-11-21 16:08:29,880 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 272 transitions, 576 flow [2022-11-21 16:08:29,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:29,882 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:29,882 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:29,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:08:29,883 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:29,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:29,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1373225779, now seen corresponding path program 1 times [2022-11-21 16:08:29,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:29,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67440613] [2022-11-21 16:08:29,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:29,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:30,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:30,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:30,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67440613] [2022-11-21 16:08:30,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67440613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:30,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:30,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:08:30,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050684216] [2022-11-21 16:08:30,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:30,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:08:30,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:30,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:08:30,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:08:30,375 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 276 [2022-11-21 16:08:30,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 272 transitions, 576 flow. Second operand has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:30,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:30,377 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 276 [2022-11-21 16:08:30,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:31,208 INFO L130 PetriNetUnfolder]: 864/2832 cut-off events. [2022-11-21 16:08:31,209 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-21 16:08:31,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4701 conditions, 2832 events. 864/2832 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17889 event pairs, 864 based on Foata normal form. 0/2474 useless extension candidates. Maximal degree in co-relation 4518. Up to 1835 conditions per place. [2022-11-21 16:08:31,223 INFO L137 encePairwiseOnDemand]: 258/276 looper letters, 106 selfloop transitions, 15 changer transitions 0/269 dead transitions. [2022-11-21 16:08:31,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 269 transitions, 812 flow [2022-11-21 16:08:31,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:08:31,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:08:31,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1018 transitions. [2022-11-21 16:08:31,226 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6147342995169082 [2022-11-21 16:08:31,227 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1018 transitions. [2022-11-21 16:08:31,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1018 transitions. [2022-11-21 16:08:31,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:31,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1018 transitions. [2022-11-21 16:08:31,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:31,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:31,235 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:31,235 INFO L175 Difference]: Start difference. First operand has 280 places, 272 transitions, 576 flow. Second operand 6 states and 1018 transitions. [2022-11-21 16:08:31,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 269 transitions, 812 flow [2022-11-21 16:08:31,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 269 transitions, 782 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:08:31,241 INFO L231 Difference]: Finished difference. Result has 277 places, 269 transitions, 570 flow [2022-11-21 16:08:31,242 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=570, PETRI_PLACES=277, PETRI_TRANSITIONS=269} [2022-11-21 16:08:31,243 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -2 predicate places. [2022-11-21 16:08:31,243 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 269 transitions, 570 flow [2022-11-21 16:08:31,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:31,244 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:31,244 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:31,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:08:31,245 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:31,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:31,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1202444287, now seen corresponding path program 1 times [2022-11-21 16:08:31,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:31,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165020124] [2022-11-21 16:08:31,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:31,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:31,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:31,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165020124] [2022-11-21 16:08:31,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165020124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:31,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:31,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:08:31,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803750464] [2022-11-21 16:08:31,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:31,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:08:31,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:31,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:08:31,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:08:31,303 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 276 [2022-11-21 16:08:31,304 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 269 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:31,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:31,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 276 [2022-11-21 16:08:31,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:31,443 INFO L130 PetriNetUnfolder]: 9/496 cut-off events. [2022-11-21 16:08:31,443 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:08:31,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 496 events. 9/496 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1501 event pairs, 9 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 397. Up to 35 conditions per place. [2022-11-21 16:08:31,446 INFO L137 encePairwiseOnDemand]: 273/276 looper letters, 16 selfloop transitions, 2 changer transitions 0/268 dead transitions. [2022-11-21 16:08:31,446 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 268 transitions, 604 flow [2022-11-21 16:08:31,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:08:31,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:08:31,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 790 transitions. [2022-11-21 16:08:31,449 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9541062801932367 [2022-11-21 16:08:31,449 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 790 transitions. [2022-11-21 16:08:31,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 790 transitions. [2022-11-21 16:08:31,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:31,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 790 transitions. [2022-11-21 16:08:31,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:31,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:31,455 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:31,455 INFO L175 Difference]: Start difference. First operand has 277 places, 269 transitions, 570 flow. Second operand 3 states and 790 transitions. [2022-11-21 16:08:31,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 268 transitions, 604 flow [2022-11-21 16:08:31,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 268 transitions, 574 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:08:31,460 INFO L231 Difference]: Finished difference. Result has 273 places, 268 transitions, 542 flow [2022-11-21 16:08:31,461 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=542, PETRI_PLACES=273, PETRI_TRANSITIONS=268} [2022-11-21 16:08:31,462 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -6 predicate places. [2022-11-21 16:08:31,462 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 268 transitions, 542 flow [2022-11-21 16:08:31,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:31,463 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:31,463 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:31,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:08:31,464 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:31,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:31,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1560437014, now seen corresponding path program 1 times [2022-11-21 16:08:31,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:31,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154973421] [2022-11-21 16:08:31,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:31,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:31,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:31,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:31,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154973421] [2022-11-21 16:08:31,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154973421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:31,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:31,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:08:31,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323634399] [2022-11-21 16:08:31,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:31,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:08:31,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:31,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:08:31,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:08:31,519 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 276 [2022-11-21 16:08:31,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 268 transitions, 542 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:31,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:31,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 276 [2022-11-21 16:08:31,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:31,595 INFO L130 PetriNetUnfolder]: 4/433 cut-off events. [2022-11-21 16:08:31,595 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 16:08:31,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 433 events. 4/433 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1082 event pairs, 4 based on Foata normal form. 0/398 useless extension candidates. Maximal degree in co-relation 395. Up to 17 conditions per place. [2022-11-21 16:08:31,597 INFO L137 encePairwiseOnDemand]: 271/276 looper letters, 10 selfloop transitions, 1 changer transitions 0/264 dead transitions. [2022-11-21 16:08:31,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 264 transitions, 556 flow [2022-11-21 16:08:31,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:08:31,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:08:31,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 795 transitions. [2022-11-21 16:08:31,600 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9601449275362319 [2022-11-21 16:08:31,600 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 795 transitions. [2022-11-21 16:08:31,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 795 transitions. [2022-11-21 16:08:31,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:31,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 795 transitions. [2022-11-21 16:08:31,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:31,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:31,606 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:31,606 INFO L175 Difference]: Start difference. First operand has 273 places, 268 transitions, 542 flow. Second operand 3 states and 795 transitions. [2022-11-21 16:08:31,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 264 transitions, 556 flow [2022-11-21 16:08:31,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 264 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:08:31,612 INFO L231 Difference]: Finished difference. Result has 269 places, 264 transitions, 532 flow [2022-11-21 16:08:31,613 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=532, PETRI_PLACES=269, PETRI_TRANSITIONS=264} [2022-11-21 16:08:31,613 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -10 predicate places. [2022-11-21 16:08:31,614 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 264 transitions, 532 flow [2022-11-21 16:08:31,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:31,615 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:31,615 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:31,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:08:31,615 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:31,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:31,616 INFO L85 PathProgramCache]: Analyzing trace with hash -2076172133, now seen corresponding path program 1 times [2022-11-21 16:08:31,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:31,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814016339] [2022-11-21 16:08:31,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:31,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:32,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:32,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:32,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814016339] [2022-11-21 16:08:32,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814016339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:32,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:32,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:08:32,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554750685] [2022-11-21 16:08:32,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:32,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:08:32,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:32,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:08:32,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:08:32,223 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 276 [2022-11-21 16:08:32,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 264 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:32,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:32,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 276 [2022-11-21 16:08:32,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:33,093 INFO L130 PetriNetUnfolder]: 925/2998 cut-off events. [2022-11-21 16:08:33,094 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:08:33,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4965 conditions, 2998 events. 925/2998 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 19040 event pairs, 925 based on Foata normal form. 0/2634 useless extension candidates. Maximal degree in co-relation 4890. Up to 1957 conditions per place. [2022-11-21 16:08:33,108 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 106 selfloop transitions, 5 changer transitions 0/263 dead transitions. [2022-11-21 16:08:33,108 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 263 transitions, 752 flow [2022-11-21 16:08:33,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:08:33,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:08:33,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1060 transitions. [2022-11-21 16:08:33,111 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6400966183574879 [2022-11-21 16:08:33,112 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1060 transitions. [2022-11-21 16:08:33,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1060 transitions. [2022-11-21 16:08:33,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:33,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1060 transitions. [2022-11-21 16:08:33,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.66666666666666) internal successors, (1060), 6 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:33,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:33,120 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:33,120 INFO L175 Difference]: Start difference. First operand has 269 places, 264 transitions, 532 flow. Second operand 6 states and 1060 transitions. [2022-11-21 16:08:33,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 263 transitions, 752 flow [2022-11-21 16:08:33,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 263 transitions, 751 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:08:33,127 INFO L231 Difference]: Finished difference. Result has 272 places, 263 transitions, 539 flow [2022-11-21 16:08:33,127 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=539, PETRI_PLACES=272, PETRI_TRANSITIONS=263} [2022-11-21 16:08:33,130 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -7 predicate places. [2022-11-21 16:08:33,130 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 263 transitions, 539 flow [2022-11-21 16:08:33,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:33,131 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:33,131 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:33,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:08:33,132 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:33,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:33,133 INFO L85 PathProgramCache]: Analyzing trace with hash -792736779, now seen corresponding path program 1 times [2022-11-21 16:08:33,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:33,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479818577] [2022-11-21 16:08:33,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:33,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:33,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:33,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:33,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479818577] [2022-11-21 16:08:33,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479818577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:33,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:33,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:08:33,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918785694] [2022-11-21 16:08:33,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:33,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:08:33,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:33,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:08:33,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:08:33,293 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 276 [2022-11-21 16:08:33,294 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 263 transitions, 539 flow. Second operand has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:33,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:33,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 276 [2022-11-21 16:08:33,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:33,378 INFO L130 PetriNetUnfolder]: 9/395 cut-off events. [2022-11-21 16:08:33,379 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:08:33,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 395 events. 9/395 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 781 event pairs, 9 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 379. Up to 35 conditions per place. [2022-11-21 16:08:33,381 INFO L137 encePairwiseOnDemand]: 273/276 looper letters, 16 selfloop transitions, 2 changer transitions 0/262 dead transitions. [2022-11-21 16:08:33,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 262 transitions, 573 flow [2022-11-21 16:08:33,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:08:33,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:08:33,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 790 transitions. [2022-11-21 16:08:33,383 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9541062801932367 [2022-11-21 16:08:33,384 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 790 transitions. [2022-11-21 16:08:33,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 790 transitions. [2022-11-21 16:08:33,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:33,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 790 transitions. [2022-11-21 16:08:33,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:33,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:33,391 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:33,391 INFO L175 Difference]: Start difference. First operand has 272 places, 263 transitions, 539 flow. Second operand 3 states and 790 transitions. [2022-11-21 16:08:33,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 262 transitions, 573 flow [2022-11-21 16:08:33,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 262 transitions, 563 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:08:33,396 INFO L231 Difference]: Finished difference. Result has 268 places, 262 transitions, 531 flow [2022-11-21 16:08:33,397 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=531, PETRI_PLACES=268, PETRI_TRANSITIONS=262} [2022-11-21 16:08:33,400 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -11 predicate places. [2022-11-21 16:08:33,400 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 262 transitions, 531 flow [2022-11-21 16:08:33,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:33,401 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:33,401 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:33,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:08:33,402 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:33,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:33,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1808203472, now seen corresponding path program 1 times [2022-11-21 16:08:33,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:33,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814799094] [2022-11-21 16:08:33,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:33,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:33,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:33,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814799094] [2022-11-21 16:08:33,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814799094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:33,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:33,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:08:33,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489703684] [2022-11-21 16:08:33,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:33,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:08:33,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:33,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:08:33,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:08:33,491 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 276 [2022-11-21 16:08:33,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 262 transitions, 531 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:33,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:33,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 276 [2022-11-21 16:08:33,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:33,554 INFO L130 PetriNetUnfolder]: 4/351 cut-off events. [2022-11-21 16:08:33,554 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 16:08:33,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 351 events. 4/351 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 529 event pairs, 4 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 316. Up to 17 conditions per place. [2022-11-21 16:08:33,556 INFO L137 encePairwiseOnDemand]: 271/276 looper letters, 10 selfloop transitions, 1 changer transitions 0/258 dead transitions. [2022-11-21 16:08:33,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 258 transitions, 545 flow [2022-11-21 16:08:33,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:08:33,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:08:33,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 795 transitions. [2022-11-21 16:08:33,559 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9601449275362319 [2022-11-21 16:08:33,559 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 795 transitions. [2022-11-21 16:08:33,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 795 transitions. [2022-11-21 16:08:33,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:33,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 795 transitions. [2022-11-21 16:08:33,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:33,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:33,564 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:33,565 INFO L175 Difference]: Start difference. First operand has 268 places, 262 transitions, 531 flow. Second operand 3 states and 795 transitions. [2022-11-21 16:08:33,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 258 transitions, 545 flow [2022-11-21 16:08:33,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 258 transitions, 541 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:08:33,575 INFO L231 Difference]: Finished difference. Result has 264 places, 258 transitions, 521 flow [2022-11-21 16:08:33,575 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=521, PETRI_PLACES=264, PETRI_TRANSITIONS=258} [2022-11-21 16:08:33,576 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -15 predicate places. [2022-11-21 16:08:33,576 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 258 transitions, 521 flow [2022-11-21 16:08:33,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:33,577 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:33,577 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:33,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:08:33,578 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:33,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:33,578 INFO L85 PathProgramCache]: Analyzing trace with hash -367297598, now seen corresponding path program 1 times [2022-11-21 16:08:33,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:33,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109408972] [2022-11-21 16:08:33,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:33,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:34,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:34,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:34,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109408972] [2022-11-21 16:08:34,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109408972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:34,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:34,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:08:34,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351999075] [2022-11-21 16:08:34,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:34,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:08:34,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:34,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:08:34,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:08:34,293 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 276 [2022-11-21 16:08:34,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 258 transitions, 521 flow. Second operand has 6 states, 6 states have (on average 165.66666666666666) internal successors, (994), 6 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:34,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:34,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 276 [2022-11-21 16:08:34,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:35,082 INFO L130 PetriNetUnfolder]: 925/2909 cut-off events. [2022-11-21 16:08:35,082 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:08:35,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4876 conditions, 2909 events. 925/2909 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 18239 event pairs, 925 based on Foata normal form. 0/2579 useless extension candidates. Maximal degree in co-relation 4802. Up to 1956 conditions per place. [2022-11-21 16:08:35,100 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 105 selfloop transitions, 5 changer transitions 0/257 dead transitions. [2022-11-21 16:08:35,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 257 transitions, 739 flow [2022-11-21 16:08:35,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:08:35,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:08:35,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1059 transitions. [2022-11-21 16:08:35,104 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6394927536231884 [2022-11-21 16:08:35,104 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1059 transitions. [2022-11-21 16:08:35,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1059 transitions. [2022-11-21 16:08:35,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:35,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1059 transitions. [2022-11-21 16:08:35,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.5) internal successors, (1059), 6 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:35,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:35,217 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:35,217 INFO L175 Difference]: Start difference. First operand has 264 places, 258 transitions, 521 flow. Second operand 6 states and 1059 transitions. [2022-11-21 16:08:35,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 257 transitions, 739 flow [2022-11-21 16:08:35,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 257 transitions, 738 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:08:35,222 INFO L231 Difference]: Finished difference. Result has 267 places, 257 transitions, 528 flow [2022-11-21 16:08:35,223 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=528, PETRI_PLACES=267, PETRI_TRANSITIONS=257} [2022-11-21 16:08:35,224 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -12 predicate places. [2022-11-21 16:08:35,224 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 257 transitions, 528 flow [2022-11-21 16:08:35,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.66666666666666) internal successors, (994), 6 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:35,225 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:35,225 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:35,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:08:35,226 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:35,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:35,226 INFO L85 PathProgramCache]: Analyzing trace with hash 333101359, now seen corresponding path program 1 times [2022-11-21 16:08:35,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:35,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005472293] [2022-11-21 16:08:35,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:35,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:35,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:35,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:35,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005472293] [2022-11-21 16:08:35,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005472293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:35,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:35,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:08:35,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098715183] [2022-11-21 16:08:35,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:35,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:08:35,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:35,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:08:35,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:08:35,875 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 276 [2022-11-21 16:08:35,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 257 transitions, 528 flow. Second operand has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:35,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:35,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 276 [2022-11-21 16:08:35,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:37,172 INFO L130 PetriNetUnfolder]: 1392/4446 cut-off events. [2022-11-21 16:08:37,173 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 16:08:37,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7395 conditions, 4446 events. 1392/4446 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 32542 event pairs, 181 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 7321. Up to 1396 conditions per place. [2022-11-21 16:08:37,196 INFO L137 encePairwiseOnDemand]: 257/276 looper letters, 210 selfloop transitions, 38 changer transitions 0/398 dead transitions. [2022-11-21 16:08:37,197 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 398 transitions, 1306 flow [2022-11-21 16:08:37,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:08:37,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:08:37,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1216 transitions. [2022-11-21 16:08:37,200 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7342995169082126 [2022-11-21 16:08:37,200 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1216 transitions. [2022-11-21 16:08:37,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1216 transitions. [2022-11-21 16:08:37,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:37,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1216 transitions. [2022-11-21 16:08:37,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 202.66666666666666) internal successors, (1216), 6 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:37,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:37,208 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:37,208 INFO L175 Difference]: Start difference. First operand has 267 places, 257 transitions, 528 flow. Second operand 6 states and 1216 transitions. [2022-11-21 16:08:37,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 398 transitions, 1306 flow [2022-11-21 16:08:37,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 398 transitions, 1296 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:08:37,217 INFO L231 Difference]: Finished difference. Result has 271 places, 293 transitions, 776 flow [2022-11-21 16:08:37,217 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=776, PETRI_PLACES=271, PETRI_TRANSITIONS=293} [2022-11-21 16:08:37,218 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -8 predicate places. [2022-11-21 16:08:37,219 INFO L495 AbstractCegarLoop]: Abstraction has has 271 places, 293 transitions, 776 flow [2022-11-21 16:08:37,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:37,220 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:37,220 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:37,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:08:37,220 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:37,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:37,221 INFO L85 PathProgramCache]: Analyzing trace with hash 2113254963, now seen corresponding path program 1 times [2022-11-21 16:08:37,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:37,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670226251] [2022-11-21 16:08:37,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:37,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:37,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:37,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:37,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670226251] [2022-11-21 16:08:37,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670226251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:37,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:37,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:08:37,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340242912] [2022-11-21 16:08:37,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:37,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:08:37,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:37,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:08:37,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:08:37,987 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 276 [2022-11-21 16:08:37,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 293 transitions, 776 flow. Second operand has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:37,989 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:37,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 276 [2022-11-21 16:08:37,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:39,558 INFO L130 PetriNetUnfolder]: 1425/4488 cut-off events. [2022-11-21 16:08:39,558 INFO L131 PetriNetUnfolder]: For 1087/1090 co-relation queries the response was YES. [2022-11-21 16:08:39,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8610 conditions, 4488 events. 1425/4488 cut-off events. For 1087/1090 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 32426 event pairs, 1015 based on Foata normal form. 0/4061 useless extension candidates. Maximal degree in co-relation 8534. Up to 2720 conditions per place. [2022-11-21 16:08:39,597 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 227 selfloop transitions, 5 changer transitions 0/384 dead transitions. [2022-11-21 16:08:39,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 384 transitions, 1462 flow [2022-11-21 16:08:39,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:08:39,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:08:39,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1174 transitions. [2022-11-21 16:08:39,602 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7089371980676329 [2022-11-21 16:08:39,602 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1174 transitions. [2022-11-21 16:08:39,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1174 transitions. [2022-11-21 16:08:39,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:39,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1174 transitions. [2022-11-21 16:08:39,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 195.66666666666666) internal successors, (1174), 6 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:39,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:39,611 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:39,611 INFO L175 Difference]: Start difference. First operand has 271 places, 293 transitions, 776 flow. Second operand 6 states and 1174 transitions. [2022-11-21 16:08:39,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 384 transitions, 1462 flow [2022-11-21 16:08:39,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 384 transitions, 1462 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:08:39,627 INFO L231 Difference]: Finished difference. Result has 275 places, 292 transitions, 784 flow [2022-11-21 16:08:39,628 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=784, PETRI_PLACES=275, PETRI_TRANSITIONS=292} [2022-11-21 16:08:39,629 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -4 predicate places. [2022-11-21 16:08:39,629 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 292 transitions, 784 flow [2022-11-21 16:08:39,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:39,630 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:39,631 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:39,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:08:39,633 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:39,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:39,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1391679481, now seen corresponding path program 1 times [2022-11-21 16:08:39,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:39,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461425455] [2022-11-21 16:08:39,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:39,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:40,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:40,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:40,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461425455] [2022-11-21 16:08:40,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461425455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:40,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:40,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:08:40,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850059240] [2022-11-21 16:08:40,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:40,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:08:40,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:40,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:08:40,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:08:40,434 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 276 [2022-11-21 16:08:40,436 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 292 transitions, 784 flow. Second operand has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:40,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:40,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 276 [2022-11-21 16:08:40,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:42,177 INFO L130 PetriNetUnfolder]: 1814/5618 cut-off events. [2022-11-21 16:08:42,177 INFO L131 PetriNetUnfolder]: For 1369/1375 co-relation queries the response was YES. [2022-11-21 16:08:42,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10841 conditions, 5618 events. 1814/5618 cut-off events. For 1369/1375 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 43378 event pairs, 427 based on Foata normal form. 0/5184 useless extension candidates. Maximal degree in co-relation 10761. Up to 2162 conditions per place. [2022-11-21 16:08:42,209 INFO L137 encePairwiseOnDemand]: 255/276 looper letters, 253 selfloop transitions, 71 changer transitions 0/471 dead transitions. [2022-11-21 16:08:42,210 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 471 transitions, 2046 flow [2022-11-21 16:08:42,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:08:42,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:08:42,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1209 transitions. [2022-11-21 16:08:42,218 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.730072463768116 [2022-11-21 16:08:42,218 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1209 transitions. [2022-11-21 16:08:42,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1209 transitions. [2022-11-21 16:08:42,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:42,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1209 transitions. [2022-11-21 16:08:42,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.5) internal successors, (1209), 6 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:42,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:42,226 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:42,227 INFO L175 Difference]: Start difference. First operand has 275 places, 292 transitions, 784 flow. Second operand 6 states and 1209 transitions. [2022-11-21 16:08:42,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 471 transitions, 2046 flow [2022-11-21 16:08:42,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 471 transitions, 1996 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:08:42,240 INFO L231 Difference]: Finished difference. Result has 280 places, 361 transitions, 1432 flow [2022-11-21 16:08:42,240 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1432, PETRI_PLACES=280, PETRI_TRANSITIONS=361} [2022-11-21 16:08:42,241 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 1 predicate places. [2022-11-21 16:08:42,241 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 361 transitions, 1432 flow [2022-11-21 16:08:42,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:42,242 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:42,242 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:42,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:08:42,242 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:42,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:42,243 INFO L85 PathProgramCache]: Analyzing trace with hash -804476488, now seen corresponding path program 1 times [2022-11-21 16:08:42,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:42,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741454511] [2022-11-21 16:08:42,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:42,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:42,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:42,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:42,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741454511] [2022-11-21 16:08:42,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741454511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:42,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:42,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:08:42,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508576756] [2022-11-21 16:08:42,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:42,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:08:42,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:42,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:08:42,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:08:42,958 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 276 [2022-11-21 16:08:42,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 361 transitions, 1432 flow. Second operand has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:42,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:42,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 276 [2022-11-21 16:08:42,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:44,712 INFO L130 PetriNetUnfolder]: 1933/6117 cut-off events. [2022-11-21 16:08:44,712 INFO L131 PetriNetUnfolder]: For 3586/3620 co-relation queries the response was YES. [2022-11-21 16:08:44,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14041 conditions, 6117 events. 1933/6117 cut-off events. For 3586/3620 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 47986 event pairs, 1016 based on Foata normal form. 0/5711 useless extension candidates. Maximal degree in co-relation 13960. Up to 3830 conditions per place. [2022-11-21 16:08:44,750 INFO L137 encePairwiseOnDemand]: 253/276 looper letters, 240 selfloop transitions, 89 changer transitions 0/480 dead transitions. [2022-11-21 16:08:44,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 480 transitions, 2610 flow [2022-11-21 16:08:44,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:08:44,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:08:44,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1173 transitions. [2022-11-21 16:08:44,754 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2022-11-21 16:08:44,754 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1173 transitions. [2022-11-21 16:08:44,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1173 transitions. [2022-11-21 16:08:44,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:44,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1173 transitions. [2022-11-21 16:08:44,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 195.5) internal successors, (1173), 6 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:44,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:44,778 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:44,778 INFO L175 Difference]: Start difference. First operand has 280 places, 361 transitions, 1432 flow. Second operand 6 states and 1173 transitions. [2022-11-21 16:08:44,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 480 transitions, 2610 flow [2022-11-21 16:08:44,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 480 transitions, 2610 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:08:44,800 INFO L231 Difference]: Finished difference. Result has 290 places, 445 transitions, 2234 flow [2022-11-21 16:08:44,801 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=1432, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2234, PETRI_PLACES=290, PETRI_TRANSITIONS=445} [2022-11-21 16:08:44,803 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 11 predicate places. [2022-11-21 16:08:44,803 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 445 transitions, 2234 flow [2022-11-21 16:08:44,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:44,804 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:44,804 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:44,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:08:44,805 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:44,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:44,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1371611843, now seen corresponding path program 1 times [2022-11-21 16:08:44,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:44,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228355861] [2022-11-21 16:08:44,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:44,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:45,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:45,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:45,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228355861] [2022-11-21 16:08:45,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228355861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:45,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:45,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:08:45,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017322647] [2022-11-21 16:08:45,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:45,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:08:45,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:45,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:08:45,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:08:45,045 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 276 [2022-11-21 16:08:45,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 445 transitions, 2234 flow. Second operand has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:45,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:45,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 276 [2022-11-21 16:08:45,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:45,433 INFO L130 PetriNetUnfolder]: 286/1908 cut-off events. [2022-11-21 16:08:45,433 INFO L131 PetriNetUnfolder]: For 1114/1188 co-relation queries the response was YES. [2022-11-21 16:08:45,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3922 conditions, 1908 events. 286/1908 cut-off events. For 1114/1188 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13002 event pairs, 25 based on Foata normal form. 4/1826 useless extension candidates. Maximal degree in co-relation 3840. Up to 272 conditions per place. [2022-11-21 16:08:45,448 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 15 selfloop transitions, 6 changer transitions 0/385 dead transitions. [2022-11-21 16:08:45,449 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 385 transitions, 1712 flow [2022-11-21 16:08:45,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:08:45,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:08:45,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 806 transitions. [2022-11-21 16:08:45,451 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9734299516908212 [2022-11-21 16:08:45,451 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 806 transitions. [2022-11-21 16:08:45,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 806 transitions. [2022-11-21 16:08:45,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:45,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 806 transitions. [2022-11-21 16:08:45,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.6666666666667) internal successors, (806), 3 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:45,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:45,456 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:45,456 INFO L175 Difference]: Start difference. First operand has 290 places, 445 transitions, 2234 flow. Second operand 3 states and 806 transitions. [2022-11-21 16:08:45,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 385 transitions, 1712 flow [2022-11-21 16:08:45,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 385 transitions, 1624 flow, removed 44 selfloop flow, removed 0 redundant places. [2022-11-21 16:08:45,473 INFO L231 Difference]: Finished difference. Result has 293 places, 383 transitions, 1604 flow [2022-11-21 16:08:45,474 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=1570, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1604, PETRI_PLACES=293, PETRI_TRANSITIONS=383} [2022-11-21 16:08:45,475 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 14 predicate places. [2022-11-21 16:08:45,475 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 383 transitions, 1604 flow [2022-11-21 16:08:45,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:45,476 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:45,476 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:45,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:08:45,476 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:45,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:45,477 INFO L85 PathProgramCache]: Analyzing trace with hash 915683656, now seen corresponding path program 1 times [2022-11-21 16:08:45,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:45,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465760500] [2022-11-21 16:08:45,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:45,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:46,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:46,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:46,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465760500] [2022-11-21 16:08:46,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465760500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:46,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:46,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:08:46,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277392090] [2022-11-21 16:08:46,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:46,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:08:46,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:46,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:08:46,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:08:46,093 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 276 [2022-11-21 16:08:46,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 383 transitions, 1604 flow. Second operand has 6 states, 6 states have (on average 171.16666666666666) internal successors, (1027), 6 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:46,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:46,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 276 [2022-11-21 16:08:46,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:47,747 INFO L130 PetriNetUnfolder]: 1230/4289 cut-off events. [2022-11-21 16:08:47,747 INFO L131 PetriNetUnfolder]: For 3299/3328 co-relation queries the response was YES. [2022-11-21 16:08:47,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10856 conditions, 4289 events. 1230/4289 cut-off events. For 3299/3328 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33092 event pairs, 209 based on Foata normal form. 0/4115 useless extension candidates. Maximal degree in co-relation 10767. Up to 1159 conditions per place. [2022-11-21 16:08:47,776 INFO L137 encePairwiseOnDemand]: 257/276 looper letters, 376 selfloop transitions, 124 changer transitions 4/659 dead transitions. [2022-11-21 16:08:47,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 659 transitions, 4178 flow [2022-11-21 16:08:47,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:08:47,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:08:47,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1261 transitions. [2022-11-21 16:08:47,780 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7614734299516909 [2022-11-21 16:08:47,781 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1261 transitions. [2022-11-21 16:08:47,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1261 transitions. [2022-11-21 16:08:47,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:47,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1261 transitions. [2022-11-21 16:08:47,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.16666666666666) internal successors, (1261), 6 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:47,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:47,787 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:47,788 INFO L175 Difference]: Start difference. First operand has 293 places, 383 transitions, 1604 flow. Second operand 6 states and 1261 transitions. [2022-11-21 16:08:47,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 659 transitions, 4178 flow [2022-11-21 16:08:47,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 659 transitions, 4172 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:08:47,816 INFO L231 Difference]: Finished difference. Result has 301 places, 485 transitions, 2980 flow [2022-11-21 16:08:47,817 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=1596, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2980, PETRI_PLACES=301, PETRI_TRANSITIONS=485} [2022-11-21 16:08:47,818 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 22 predicate places. [2022-11-21 16:08:47,818 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 485 transitions, 2980 flow [2022-11-21 16:08:47,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.16666666666666) internal successors, (1027), 6 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:47,819 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:47,819 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:47,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:08:47,819 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:47,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:47,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1967520859, now seen corresponding path program 1 times [2022-11-21 16:08:47,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:47,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311197543] [2022-11-21 16:08:47,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:47,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:48,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:48,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:48,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311197543] [2022-11-21 16:08:48,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311197543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:48,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:48,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:08:48,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283228587] [2022-11-21 16:08:48,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:48,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:08:48,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:48,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:08:48,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:08:48,471 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 276 [2022-11-21 16:08:48,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 485 transitions, 2980 flow. Second operand has 6 states, 6 states have (on average 174.33333333333334) internal successors, (1046), 6 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:48,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:48,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 276 [2022-11-21 16:08:48,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:50,032 INFO L130 PetriNetUnfolder]: 1281/4354 cut-off events. [2022-11-21 16:08:50,032 INFO L131 PetriNetUnfolder]: For 6062/6103 co-relation queries the response was YES. [2022-11-21 16:08:50,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12632 conditions, 4354 events. 1281/4354 cut-off events. For 6062/6103 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33324 event pairs, 469 based on Foata normal form. 0/4226 useless extension candidates. Maximal degree in co-relation 12540. Up to 2346 conditions per place. [2022-11-21 16:08:50,065 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 410 selfloop transitions, 17 changer transitions 0/584 dead transitions. [2022-11-21 16:08:50,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 584 transitions, 4424 flow [2022-11-21 16:08:50,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:08:50,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:08:50,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1164 transitions. [2022-11-21 16:08:50,070 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7028985507246377 [2022-11-21 16:08:50,070 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1164 transitions. [2022-11-21 16:08:50,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1164 transitions. [2022-11-21 16:08:50,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:50,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1164 transitions. [2022-11-21 16:08:50,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.0) internal successors, (1164), 6 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:50,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:50,079 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:50,079 INFO L175 Difference]: Start difference. First operand has 301 places, 485 transitions, 2980 flow. Second operand 6 states and 1164 transitions. [2022-11-21 16:08:50,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 584 transitions, 4424 flow [2022-11-21 16:08:50,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 584 transitions, 4406 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-21 16:08:50,119 INFO L231 Difference]: Finished difference. Result has 305 places, 484 transitions, 2994 flow [2022-11-21 16:08:50,120 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=2960, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2994, PETRI_PLACES=305, PETRI_TRANSITIONS=484} [2022-11-21 16:08:50,122 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 26 predicate places. [2022-11-21 16:08:50,122 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 484 transitions, 2994 flow [2022-11-21 16:08:50,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.33333333333334) internal successors, (1046), 6 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:50,123 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:50,123 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:50,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:08:50,123 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:50,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:50,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1233179414, now seen corresponding path program 1 times [2022-11-21 16:08:50,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:50,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716986799] [2022-11-21 16:08:50,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:50,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:52,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:52,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:52,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716986799] [2022-11-21 16:08:52,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716986799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:52,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:52,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-21 16:08:52,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261226786] [2022-11-21 16:08:52,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:52,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-21 16:08:52,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:52,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-21 16:08:52,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2022-11-21 16:08:52,658 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 276 [2022-11-21 16:08:52,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 484 transitions, 2994 flow. Second operand has 21 states, 21 states have (on average 120.28571428571429) internal successors, (2526), 21 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:52,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:52,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 276 [2022-11-21 16:08:52,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:08:55,845 INFO L130 PetriNetUnfolder]: 1855/5705 cut-off events. [2022-11-21 16:08:55,845 INFO L131 PetriNetUnfolder]: For 6899/6899 co-relation queries the response was YES. [2022-11-21 16:08:55,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16587 conditions, 5705 events. 1855/5705 cut-off events. For 6899/6899 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 44759 event pairs, 191 based on Foata normal form. 15/5580 useless extension candidates. Maximal degree in co-relation 16475. Up to 1996 conditions per place. [2022-11-21 16:08:55,879 INFO L137 encePairwiseOnDemand]: 244/276 looper letters, 549 selfloop transitions, 127 changer transitions 1/784 dead transitions. [2022-11-21 16:08:55,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 784 transitions, 6104 flow [2022-11-21 16:08:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-21 16:08:55,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-21 16:08:55,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 4759 transitions. [2022-11-21 16:08:55,891 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4537566742944317 [2022-11-21 16:08:55,892 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 4759 transitions. [2022-11-21 16:08:55,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 4759 transitions. [2022-11-21 16:08:55,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:08:55,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 4759 transitions. [2022-11-21 16:08:55,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 125.23684210526316) internal successors, (4759), 38 states have internal predecessors, (4759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:55,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:55,922 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:55,922 INFO L175 Difference]: Start difference. First operand has 305 places, 484 transitions, 2994 flow. Second operand 38 states and 4759 transitions. [2022-11-21 16:08:55,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 784 transitions, 6104 flow [2022-11-21 16:08:55,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 784 transitions, 6044 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:08:55,965 INFO L231 Difference]: Finished difference. Result has 352 places, 543 transitions, 3808 flow [2022-11-21 16:08:55,966 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=2960, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=3808, PETRI_PLACES=352, PETRI_TRANSITIONS=543} [2022-11-21 16:08:55,967 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 73 predicate places. [2022-11-21 16:08:55,967 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 543 transitions, 3808 flow [2022-11-21 16:08:55,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 120.28571428571429) internal successors, (2526), 21 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:55,968 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:08:55,968 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:08:55,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 16:08:55,969 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:08:55,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:55,969 INFO L85 PathProgramCache]: Analyzing trace with hash -905724054, now seen corresponding path program 1 times [2022-11-21 16:08:55,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:55,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783047088] [2022-11-21 16:08:55,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:55,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:58,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:58,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:58,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783047088] [2022-11-21 16:08:58,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783047088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:58,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:58,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-21 16:08:58,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637200362] [2022-11-21 16:08:58,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:58,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-21 16:08:58,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:58,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-21 16:08:58,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2022-11-21 16:08:58,021 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 276 [2022-11-21 16:08:58,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 543 transitions, 3808 flow. Second operand has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:08:58,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:08:58,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 276 [2022-11-21 16:08:58,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:01,821 INFO L130 PetriNetUnfolder]: 2214/6839 cut-off events. [2022-11-21 16:09:01,822 INFO L131 PetriNetUnfolder]: For 12908/12916 co-relation queries the response was YES. [2022-11-21 16:09:01,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22096 conditions, 6839 events. 2214/6839 cut-off events. For 12908/12916 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 56745 event pairs, 354 based on Foata normal form. 18/6702 useless extension candidates. Maximal degree in co-relation 21962. Up to 1702 conditions per place. [2022-11-21 16:09:01,879 INFO L137 encePairwiseOnDemand]: 242/276 looper letters, 710 selfloop transitions, 158 changer transitions 3/982 dead transitions. [2022-11-21 16:09:01,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 982 transitions, 8620 flow [2022-11-21 16:09:01,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-21 16:09:01,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-21 16:09:01,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3991 transitions. [2022-11-21 16:09:01,888 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4820048309178744 [2022-11-21 16:09:01,888 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 3991 transitions. [2022-11-21 16:09:01,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 3991 transitions. [2022-11-21 16:09:01,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:01,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 3991 transitions. [2022-11-21 16:09:01,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 133.03333333333333) internal successors, (3991), 30 states have internal predecessors, (3991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:01,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 276.0) internal successors, (8556), 31 states have internal predecessors, (8556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:01,911 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 276.0) internal successors, (8556), 31 states have internal predecessors, (8556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:01,911 INFO L175 Difference]: Start difference. First operand has 352 places, 543 transitions, 3808 flow. Second operand 30 states and 3991 transitions. [2022-11-21 16:09:01,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 982 transitions, 8620 flow [2022-11-21 16:09:02,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 982 transitions, 8485 flow, removed 53 selfloop flow, removed 11 redundant places. [2022-11-21 16:09:02,017 INFO L231 Difference]: Finished difference. Result has 380 places, 633 transitions, 5281 flow [2022-11-21 16:09:02,018 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=3726, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=5281, PETRI_PLACES=380, PETRI_TRANSITIONS=633} [2022-11-21 16:09:02,019 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 101 predicate places. [2022-11-21 16:09:02,019 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 633 transitions, 5281 flow [2022-11-21 16:09:02,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:02,020 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:02,020 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:02,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 16:09:02,020 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:09:02,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:02,021 INFO L85 PathProgramCache]: Analyzing trace with hash -2083265774, now seen corresponding path program 2 times [2022-11-21 16:09:02,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:02,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066719675] [2022-11-21 16:09:02,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:02,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:03,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:03,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:03,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066719675] [2022-11-21 16:09:03,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066719675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:03,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:03,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-21 16:09:03,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958851530] [2022-11-21 16:09:03,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:03,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-21 16:09:03,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:03,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-21 16:09:03,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2022-11-21 16:09:03,973 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-21 16:09:03,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 633 transitions, 5281 flow. Second operand has 21 states, 21 states have (on average 122.23809523809524) internal successors, (2567), 21 states have internal predecessors, (2567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:03,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:03,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-21 16:09:03,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:08,824 INFO L130 PetriNetUnfolder]: 2335/7104 cut-off events. [2022-11-21 16:09:08,825 INFO L131 PetriNetUnfolder]: For 17644/17654 co-relation queries the response was YES. [2022-11-21 16:09:08,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24670 conditions, 7104 events. 2335/7104 cut-off events. For 17644/17654 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 58675 event pairs, 211 based on Foata normal form. 25/6977 useless extension candidates. Maximal degree in co-relation 24523. Up to 1290 conditions per place. [2022-11-21 16:09:08,904 INFO L137 encePairwiseOnDemand]: 243/276 looper letters, 686 selfloop transitions, 202 changer transitions 4/1001 dead transitions. [2022-11-21 16:09:08,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 1001 transitions, 9440 flow [2022-11-21 16:09:08,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-21 16:09:08,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-21 16:09:08,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 4897 transitions. [2022-11-21 16:09:08,914 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4669145690312738 [2022-11-21 16:09:08,914 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 4897 transitions. [2022-11-21 16:09:08,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 4897 transitions. [2022-11-21 16:09:08,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:08,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 4897 transitions. [2022-11-21 16:09:08,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 128.8684210526316) internal successors, (4897), 38 states have internal predecessors, (4897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:08,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:08,948 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:08,948 INFO L175 Difference]: Start difference. First operand has 380 places, 633 transitions, 5281 flow. Second operand 38 states and 4897 transitions. [2022-11-21 16:09:08,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 1001 transitions, 9440 flow [2022-11-21 16:09:09,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 1001 transitions, 9368 flow, removed 17 selfloop flow, removed 11 redundant places. [2022-11-21 16:09:09,107 INFO L231 Difference]: Finished difference. Result has 419 places, 696 transitions, 6464 flow [2022-11-21 16:09:09,107 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=5233, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=6464, PETRI_PLACES=419, PETRI_TRANSITIONS=696} [2022-11-21 16:09:09,108 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 140 predicate places. [2022-11-21 16:09:09,108 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 696 transitions, 6464 flow [2022-11-21 16:09:09,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 122.23809523809524) internal successors, (2567), 21 states have internal predecessors, (2567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:09,109 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:09,110 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:09,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 16:09:09,110 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:09:09,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:09,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1788509596, now seen corresponding path program 3 times [2022-11-21 16:09:09,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:09,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051837606] [2022-11-21 16:09:09,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:09,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:11,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:11,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:11,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051837606] [2022-11-21 16:09:11,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051837606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:11,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:11,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-21 16:09:11,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922419194] [2022-11-21 16:09:11,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:11,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-21 16:09:11,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:11,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-21 16:09:11,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-11-21 16:09:11,380 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-21 16:09:11,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 696 transitions, 6464 flow. Second operand has 22 states, 22 states have (on average 122.0) internal successors, (2684), 22 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:11,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:11,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-21 16:09:11,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:16,897 INFO L130 PetriNetUnfolder]: 2817/8469 cut-off events. [2022-11-21 16:09:16,897 INFO L131 PetriNetUnfolder]: For 28047/28059 co-relation queries the response was YES. [2022-11-21 16:09:16,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32007 conditions, 8469 events. 2817/8469 cut-off events. For 28047/28059 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 73336 event pairs, 297 based on Foata normal form. 27/8334 useless extension candidates. Maximal degree in co-relation 31844. Up to 1418 conditions per place. [2022-11-21 16:09:16,991 INFO L137 encePairwiseOnDemand]: 239/276 looper letters, 860 selfloop transitions, 243 changer transitions 4/1216 dead transitions. [2022-11-21 16:09:16,991 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 1216 transitions, 12603 flow [2022-11-21 16:09:16,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-21 16:09:16,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-11-21 16:09:16,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 4865 transitions. [2022-11-21 16:09:17,000 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4764003133568351 [2022-11-21 16:09:17,001 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 4865 transitions. [2022-11-21 16:09:17,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 4865 transitions. [2022-11-21 16:09:17,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:17,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 4865 transitions. [2022-11-21 16:09:17,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 131.48648648648648) internal successors, (4865), 37 states have internal predecessors, (4865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:17,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 276.0) internal successors, (10488), 38 states have internal predecessors, (10488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:17,027 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 276.0) internal successors, (10488), 38 states have internal predecessors, (10488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:17,027 INFO L175 Difference]: Start difference. First operand has 419 places, 696 transitions, 6464 flow. Second operand 37 states and 4865 transitions. [2022-11-21 16:09:17,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 1216 transitions, 12603 flow [2022-11-21 16:09:17,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 1216 transitions, 12368 flow, removed 14 selfloop flow, removed 23 redundant places. [2022-11-21 16:09:17,258 INFO L231 Difference]: Finished difference. Result has 443 places, 785 transitions, 8437 flow [2022-11-21 16:09:17,258 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=6294, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=696, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=155, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=483, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=8437, PETRI_PLACES=443, PETRI_TRANSITIONS=785} [2022-11-21 16:09:17,258 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 164 predicate places. [2022-11-21 16:09:17,259 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 785 transitions, 8437 flow [2022-11-21 16:09:17,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 122.0) internal successors, (2684), 22 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:17,259 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:17,260 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:17,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 16:09:17,260 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:09:17,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:17,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1259388884, now seen corresponding path program 4 times [2022-11-21 16:09:17,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:17,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286070745] [2022-11-21 16:09:17,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:17,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:19,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:19,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:19,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286070745] [2022-11-21 16:09:19,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286070745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:19,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:19,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-21 16:09:19,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717822997] [2022-11-21 16:09:19,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:19,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-21 16:09:19,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:19,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-21 16:09:19,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-11-21 16:09:19,084 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 276 [2022-11-21 16:09:19,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 785 transitions, 8437 flow. Second operand has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:19,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:19,086 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 276 [2022-11-21 16:09:19,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:24,407 INFO L130 PetriNetUnfolder]: 3299/9913 cut-off events. [2022-11-21 16:09:24,407 INFO L131 PetriNetUnfolder]: For 43269/43283 co-relation queries the response was YES. [2022-11-21 16:09:24,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39787 conditions, 9913 events. 3299/9913 cut-off events. For 43269/43283 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 89065 event pairs, 428 based on Foata normal form. 29/9759 useless extension candidates. Maximal degree in co-relation 39611. Up to 1838 conditions per place. [2022-11-21 16:09:24,529 INFO L137 encePairwiseOnDemand]: 242/276 looper letters, 888 selfloop transitions, 283 changer transitions 3/1285 dead transitions. [2022-11-21 16:09:24,529 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 1285 transitions, 15233 flow [2022-11-21 16:09:24,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-21 16:09:24,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-21 16:09:24,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 4504 transitions. [2022-11-21 16:09:24,537 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4799658994032396 [2022-11-21 16:09:24,537 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 4504 transitions. [2022-11-21 16:09:24,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 4504 transitions. [2022-11-21 16:09:24,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:24,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 4504 transitions. [2022-11-21 16:09:24,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 132.47058823529412) internal successors, (4504), 34 states have internal predecessors, (4504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:24,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 276.0) internal successors, (9660), 35 states have internal predecessors, (9660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:24,562 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 276.0) internal successors, (9660), 35 states have internal predecessors, (9660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:24,562 INFO L175 Difference]: Start difference. First operand has 443 places, 785 transitions, 8437 flow. Second operand 34 states and 4504 transitions. [2022-11-21 16:09:24,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 1285 transitions, 15233 flow [2022-11-21 16:09:24,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 1285 transitions, 15136 flow, removed 19 selfloop flow, removed 16 redundant places. [2022-11-21 16:09:24,917 INFO L231 Difference]: Finished difference. Result has 473 places, 884 transitions, 11108 flow [2022-11-21 16:09:24,918 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=8362, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=785, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=11108, PETRI_PLACES=473, PETRI_TRANSITIONS=884} [2022-11-21 16:09:24,918 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 194 predicate places. [2022-11-21 16:09:24,918 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 884 transitions, 11108 flow [2022-11-21 16:09:24,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:24,919 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:24,920 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:24,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 16:09:24,920 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:09:24,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:24,921 INFO L85 PathProgramCache]: Analyzing trace with hash -543172394, now seen corresponding path program 5 times [2022-11-21 16:09:24,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:24,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866815688] [2022-11-21 16:09:24,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:24,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:26,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:26,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:26,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866815688] [2022-11-21 16:09:26,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866815688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:26,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:26,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-21 16:09:26,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594302662] [2022-11-21 16:09:26,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:26,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-21 16:09:26,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:26,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-21 16:09:26,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-11-21 16:09:26,710 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 276 [2022-11-21 16:09:26,711 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 884 transitions, 11108 flow. Second operand has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:26,711 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:26,711 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 276 [2022-11-21 16:09:26,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:32,684 INFO L130 PetriNetUnfolder]: 3728/11201 cut-off events. [2022-11-21 16:09:32,684 INFO L131 PetriNetUnfolder]: For 63519/63535 co-relation queries the response was YES. [2022-11-21 16:09:32,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47621 conditions, 11201 events. 3728/11201 cut-off events. For 63519/63535 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 104089 event pairs, 471 based on Foata normal form. 31/11036 useless extension candidates. Maximal degree in co-relation 47428. Up to 2268 conditions per place. [2022-11-21 16:09:32,854 INFO L137 encePairwiseOnDemand]: 242/276 looper letters, 900 selfloop transitions, 335 changer transitions 3/1349 dead transitions. [2022-11-21 16:09:32,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 1349 transitions, 17814 flow [2022-11-21 16:09:32,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-21 16:09:32,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-11-21 16:09:32,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 4376 transitions. [2022-11-21 16:09:32,863 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48045674132630656 [2022-11-21 16:09:32,863 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 4376 transitions. [2022-11-21 16:09:32,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 4376 transitions. [2022-11-21 16:09:32,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:32,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 4376 transitions. [2022-11-21 16:09:32,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 132.6060606060606) internal successors, (4376), 33 states have internal predecessors, (4376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:32,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 276.0) internal successors, (9384), 34 states have internal predecessors, (9384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:32,884 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 276.0) internal successors, (9384), 34 states have internal predecessors, (9384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:32,885 INFO L175 Difference]: Start difference. First operand has 473 places, 884 transitions, 11108 flow. Second operand 33 states and 4376 transitions. [2022-11-21 16:09:32,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 1349 transitions, 17814 flow [2022-11-21 16:09:33,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 1349 transitions, 17660 flow, removed 55 selfloop flow, removed 14 redundant places. [2022-11-21 16:09:34,021 INFO L231 Difference]: Finished difference. Result has 502 places, 960 transitions, 13801 flow [2022-11-21 16:09:34,022 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=10962, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=884, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=260, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=13801, PETRI_PLACES=502, PETRI_TRANSITIONS=960} [2022-11-21 16:09:34,022 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 223 predicate places. [2022-11-21 16:09:34,023 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 960 transitions, 13801 flow [2022-11-21 16:09:34,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:34,024 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:34,024 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:34,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-21 16:09:34,024 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:09:34,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:34,025 INFO L85 PathProgramCache]: Analyzing trace with hash -934467488, now seen corresponding path program 1 times [2022-11-21 16:09:34,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:34,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340178092] [2022-11-21 16:09:34,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:34,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:34,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:34,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:34,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340178092] [2022-11-21 16:09:34,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340178092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:34,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:34,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:09:34,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076800543] [2022-11-21 16:09:34,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:34,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:09:34,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:34,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:09:34,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:09:34,558 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 276 [2022-11-21 16:09:34,559 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 960 transitions, 13801 flow. Second operand has 6 states, 6 states have (on average 173.5) internal successors, (1041), 6 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:34,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:34,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 276 [2022-11-21 16:09:34,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:38,859 INFO L130 PetriNetUnfolder]: 3032/10024 cut-off events. [2022-11-21 16:09:38,860 INFO L131 PetriNetUnfolder]: For 71594/71945 co-relation queries the response was YES. [2022-11-21 16:09:38,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44077 conditions, 10024 events. 3032/10024 cut-off events. For 71594/71945 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 95100 event pairs, 1031 based on Foata normal form. 126/9994 useless extension candidates. Maximal degree in co-relation 43889. Up to 5812 conditions per place. [2022-11-21 16:09:38,988 INFO L137 encePairwiseOnDemand]: 253/276 looper letters, 627 selfloop transitions, 97 changer transitions 106/1094 dead transitions. [2022-11-21 16:09:38,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 1094 transitions, 16629 flow [2022-11-21 16:09:38,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:09:38,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:09:38,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1171 transitions. [2022-11-21 16:09:38,990 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7071256038647343 [2022-11-21 16:09:38,990 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1171 transitions. [2022-11-21 16:09:38,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1171 transitions. [2022-11-21 16:09:38,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:38,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1171 transitions. [2022-11-21 16:09:38,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 195.16666666666666) internal successors, (1171), 6 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:38,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:38,995 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:38,995 INFO L175 Difference]: Start difference. First operand has 502 places, 960 transitions, 13801 flow. Second operand 6 states and 1171 transitions. [2022-11-21 16:09:38,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 1094 transitions, 16629 flow [2022-11-21 16:09:39,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 492 places, 1094 transitions, 16488 flow, removed 45 selfloop flow, removed 15 redundant places. [2022-11-21 16:09:39,495 INFO L231 Difference]: Finished difference. Result has 497 places, 955 transitions, 13349 flow [2022-11-21 16:09:39,496 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=13660, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=911, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=13349, PETRI_PLACES=497, PETRI_TRANSITIONS=955} [2022-11-21 16:09:39,496 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 218 predicate places. [2022-11-21 16:09:39,496 INFO L495 AbstractCegarLoop]: Abstraction has has 497 places, 955 transitions, 13349 flow [2022-11-21 16:09:39,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.5) internal successors, (1041), 6 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:39,496 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:39,497 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:39,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-21 16:09:39,497 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:09:39,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:39,497 INFO L85 PathProgramCache]: Analyzing trace with hash 428030399, now seen corresponding path program 1 times [2022-11-21 16:09:39,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:39,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900111119] [2022-11-21 16:09:39,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:39,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:41,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:41,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:41,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900111119] [2022-11-21 16:09:41,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900111119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:41,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:41,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-21 16:09:41,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871908446] [2022-11-21 16:09:41,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:41,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-21 16:09:41,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:41,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-21 16:09:41,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-11-21 16:09:41,532 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-21 16:09:41,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 955 transitions, 13349 flow. Second operand has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:41,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:41,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-21 16:09:41,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:48,801 INFO L130 PetriNetUnfolder]: 3688/10885 cut-off events. [2022-11-21 16:09:48,801 INFO L131 PetriNetUnfolder]: For 83350/83355 co-relation queries the response was YES. [2022-11-21 16:09:48,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51176 conditions, 10885 events. 3688/10885 cut-off events. For 83350/83355 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 98705 event pairs, 469 based on Foata normal form. 10/10797 useless extension candidates. Maximal degree in co-relation 50970. Up to 1999 conditions per place. [2022-11-21 16:09:48,952 INFO L137 encePairwiseOnDemand]: 243/276 looper letters, 874 selfloop transitions, 272 changer transitions 31/1286 dead transitions. [2022-11-21 16:09:48,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 1286 transitions, 18372 flow [2022-11-21 16:09:48,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-21 16:09:48,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-21 16:09:48,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 4879 transitions. [2022-11-21 16:09:48,961 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46519832189168575 [2022-11-21 16:09:48,961 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 4879 transitions. [2022-11-21 16:09:48,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 4879 transitions. [2022-11-21 16:09:48,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:48,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 4879 transitions. [2022-11-21 16:09:48,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 128.39473684210526) internal successors, (4879), 38 states have internal predecessors, (4879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:48,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:48,982 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:48,983 INFO L175 Difference]: Start difference. First operand has 497 places, 955 transitions, 13349 flow. Second operand 38 states and 4879 transitions. [2022-11-21 16:09:48,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 1286 transitions, 18372 flow [2022-11-21 16:09:49,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1286 transitions, 17844 flow, removed 196 selfloop flow, removed 11 redundant places. [2022-11-21 16:09:49,788 INFO L231 Difference]: Finished difference. Result has 502 places, 965 transitions, 13874 flow [2022-11-21 16:09:49,789 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=12975, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=262, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=13874, PETRI_PLACES=502, PETRI_TRANSITIONS=965} [2022-11-21 16:09:49,790 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 223 predicate places. [2022-11-21 16:09:49,790 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 965 transitions, 13874 flow [2022-11-21 16:09:49,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:49,790 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:49,791 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:49,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-21 16:09:49,791 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:09:49,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:49,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1549432587, now seen corresponding path program 2 times [2022-11-21 16:09:49,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:49,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815422918] [2022-11-21 16:09:49,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:49,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:51,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:51,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:51,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815422918] [2022-11-21 16:09:51,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815422918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:51,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:51,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-21 16:09:51,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598541700] [2022-11-21 16:09:51,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:51,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-21 16:09:51,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:51,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-21 16:09:51,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-11-21 16:09:51,474 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 276 [2022-11-21 16:09:51,476 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 965 transitions, 13874 flow. Second operand has 20 states, 20 states have (on average 123.7) internal successors, (2474), 20 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:51,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:51,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 276 [2022-11-21 16:09:51,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:57,888 INFO L130 PetriNetUnfolder]: 3669/10783 cut-off events. [2022-11-21 16:09:57,889 INFO L131 PetriNetUnfolder]: For 91825/91830 co-relation queries the response was YES. [2022-11-21 16:09:58,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52251 conditions, 10783 events. 3669/10783 cut-off events. For 91825/91830 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 97363 event pairs, 548 based on Foata normal form. 10/10689 useless extension candidates. Maximal degree in co-relation 52045. Up to 2171 conditions per place. [2022-11-21 16:09:58,038 INFO L137 encePairwiseOnDemand]: 242/276 looper letters, 919 selfloop transitions, 267 changer transitions 29/1326 dead transitions. [2022-11-21 16:09:58,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 1326 transitions, 19415 flow [2022-11-21 16:09:58,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-21 16:09:58,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-21 16:09:58,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 4084 transitions. [2022-11-21 16:09:58,047 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47732585320243104 [2022-11-21 16:09:58,047 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 4084 transitions. [2022-11-21 16:09:58,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 4084 transitions. [2022-11-21 16:09:58,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:58,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 4084 transitions. [2022-11-21 16:09:58,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 131.74193548387098) internal successors, (4084), 31 states have internal predecessors, (4084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:58,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 276.0) internal successors, (8832), 32 states have internal predecessors, (8832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:58,070 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 276.0) internal successors, (8832), 32 states have internal predecessors, (8832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:58,071 INFO L175 Difference]: Start difference. First operand has 502 places, 965 transitions, 13874 flow. Second operand 31 states and 4084 transitions. [2022-11-21 16:09:58,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 1326 transitions, 19415 flow [2022-11-21 16:09:58,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1326 transitions, 18883 flow, removed 16 selfloop flow, removed 33 redundant places. [2022-11-21 16:09:58,834 INFO L231 Difference]: Finished difference. Result has 502 places, 974 transitions, 14447 flow [2022-11-21 16:09:58,834 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=13378, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=965, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=258, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=698, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=14447, PETRI_PLACES=502, PETRI_TRANSITIONS=974} [2022-11-21 16:09:58,835 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 223 predicate places. [2022-11-21 16:09:58,835 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 974 transitions, 14447 flow [2022-11-21 16:09:58,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 123.7) internal successors, (2474), 20 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:58,835 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:58,835 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:58,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-21 16:09:58,836 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:09:58,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:58,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1611330081, now seen corresponding path program 3 times [2022-11-21 16:09:58,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:58,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182522705] [2022-11-21 16:09:58,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:58,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:00,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:10:00,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:00,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182522705] [2022-11-21 16:10:00,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182522705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:00,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:00,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-21 16:10:00,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841774143] [2022-11-21 16:10:00,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:00,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-21 16:10:00,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:00,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-21 16:10:00,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2022-11-21 16:10:00,378 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-21 16:10:00,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 974 transitions, 14447 flow. Second operand has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:00,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:10:00,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-21 16:10:00,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:10:07,049 INFO L130 PetriNetUnfolder]: 3731/10996 cut-off events. [2022-11-21 16:10:07,050 INFO L131 PetriNetUnfolder]: For 101719/101724 co-relation queries the response was YES. [2022-11-21 16:10:07,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53592 conditions, 10996 events. 3731/10996 cut-off events. For 101719/101724 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 99867 event pairs, 474 based on Foata normal form. 10/10907 useless extension candidates. Maximal degree in co-relation 53381. Up to 1999 conditions per place. [2022-11-21 16:10:07,198 INFO L137 encePairwiseOnDemand]: 242/276 looper letters, 883 selfloop transitions, 283 changer transitions 31/1306 dead transitions. [2022-11-21 16:10:07,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 1306 transitions, 19487 flow [2022-11-21 16:10:07,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-21 16:10:07,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-21 16:10:07,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 4638 transitions. [2022-11-21 16:10:07,204 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4667874396135266 [2022-11-21 16:10:07,204 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 4638 transitions. [2022-11-21 16:10:07,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 4638 transitions. [2022-11-21 16:10:07,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:10:07,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 4638 transitions. [2022-11-21 16:10:07,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 128.83333333333334) internal successors, (4638), 36 states have internal predecessors, (4638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:07,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 276.0) internal successors, (10212), 37 states have internal predecessors, (10212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:07,224 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 276.0) internal successors, (10212), 37 states have internal predecessors, (10212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:07,224 INFO L175 Difference]: Start difference. First operand has 502 places, 974 transitions, 14447 flow. Second operand 36 states and 4638 transitions. [2022-11-21 16:10:07,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 1306 transitions, 19487 flow [2022-11-21 16:10:08,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 1306 transitions, 19050 flow, removed 15 selfloop flow, removed 27 redundant places. [2022-11-21 16:10:08,117 INFO L231 Difference]: Finished difference. Result has 514 places, 986 transitions, 15038 flow [2022-11-21 16:10:08,118 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=14022, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=974, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=271, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=15038, PETRI_PLACES=514, PETRI_TRANSITIONS=986} [2022-11-21 16:10:08,118 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 235 predicate places. [2022-11-21 16:10:08,119 INFO L495 AbstractCegarLoop]: Abstraction has has 514 places, 986 transitions, 15038 flow [2022-11-21 16:10:08,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:08,119 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:10:08,119 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:10:08,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-21 16:10:08,120 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:10:08,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:08,120 INFO L85 PathProgramCache]: Analyzing trace with hash -2072578291, now seen corresponding path program 4 times [2022-11-21 16:10:08,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:08,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321850803] [2022-11-21 16:10:08,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:08,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:09,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:10:09,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:09,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321850803] [2022-11-21 16:10:09,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321850803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:09,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:09,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-21 16:10:09,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999100330] [2022-11-21 16:10:09,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:09,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-21 16:10:09,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:09,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-21 16:10:09,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-11-21 16:10:09,992 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-21 16:10:09,995 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 986 transitions, 15038 flow. Second operand has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:09,995 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:10:09,995 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-21 16:10:09,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:10:17,592 INFO L130 PetriNetUnfolder]: 3753/10947 cut-off events. [2022-11-21 16:10:17,592 INFO L131 PetriNetUnfolder]: For 111127/111132 co-relation queries the response was YES. [2022-11-21 16:10:17,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55071 conditions, 10947 events. 3753/10947 cut-off events. For 111127/111132 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 98947 event pairs, 488 based on Foata normal form. 10/10850 useless extension candidates. Maximal degree in co-relation 54856. Up to 1909 conditions per place. [2022-11-21 16:10:17,732 INFO L137 encePairwiseOnDemand]: 238/276 looper letters, 1008 selfloop transitions, 313 changer transitions 31/1461 dead transitions. [2022-11-21 16:10:17,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 1461 transitions, 21634 flow [2022-11-21 16:10:17,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-21 16:10:17,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-11-21 16:10:17,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 5082 transitions. [2022-11-21 16:10:17,739 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4721293199554069 [2022-11-21 16:10:17,739 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 5082 transitions. [2022-11-21 16:10:17,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 5082 transitions. [2022-11-21 16:10:17,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:10:17,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 5082 transitions. [2022-11-21 16:10:17,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 130.30769230769232) internal successors, (5082), 39 states have internal predecessors, (5082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:17,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 276.0) internal successors, (11040), 40 states have internal predecessors, (11040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:17,760 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 276.0) internal successors, (11040), 40 states have internal predecessors, (11040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:17,760 INFO L175 Difference]: Start difference. First operand has 514 places, 986 transitions, 15038 flow. Second operand 39 states and 5082 transitions. [2022-11-21 16:10:17,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 1461 transitions, 21634 flow [2022-11-21 16:10:18,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 1461 transitions, 21104 flow, removed 38 selfloop flow, removed 29 redundant places. [2022-11-21 16:10:18,691 INFO L231 Difference]: Finished difference. Result has 527 places, 1016 transitions, 15979 flow [2022-11-21 16:10:18,692 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=14571, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=986, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=283, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=15979, PETRI_PLACES=527, PETRI_TRANSITIONS=1016} [2022-11-21 16:10:18,693 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 248 predicate places. [2022-11-21 16:10:18,693 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 1016 transitions, 15979 flow [2022-11-21 16:10:18,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:18,693 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:10:18,694 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:10:18,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-21 16:10:18,694 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:10:18,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:18,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1298348175, now seen corresponding path program 5 times [2022-11-21 16:10:18,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:18,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729785687] [2022-11-21 16:10:18,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:18,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:20,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:10:20,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:20,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729785687] [2022-11-21 16:10:20,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729785687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:20,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:20,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-21 16:10:20,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256771647] [2022-11-21 16:10:20,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:20,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-21 16:10:20,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:20,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-21 16:10:20,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2022-11-21 16:10:20,653 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-21 16:10:20,655 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 1016 transitions, 15979 flow. Second operand has 21 states, 21 states have (on average 122.47619047619048) internal successors, (2572), 21 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:20,655 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:10:20,655 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-21 16:10:20,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:10:28,630 INFO L130 PetriNetUnfolder]: 3758/11024 cut-off events. [2022-11-21 16:10:28,630 INFO L131 PetriNetUnfolder]: For 115765/115770 co-relation queries the response was YES. [2022-11-21 16:10:28,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55692 conditions, 11024 events. 3758/11024 cut-off events. For 115765/115770 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 100470 event pairs, 357 based on Foata normal form. 10/10960 useless extension candidates. Maximal degree in co-relation 55472. Up to 2064 conditions per place. [2022-11-21 16:10:28,779 INFO L137 encePairwiseOnDemand]: 241/276 looper letters, 883 selfloop transitions, 375 changer transitions 37/1404 dead transitions. [2022-11-21 16:10:28,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 1404 transitions, 21407 flow [2022-11-21 16:10:28,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-21 16:10:28,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-11-21 16:10:28,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 5552 transitions. [2022-11-21 16:10:28,786 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4678126053252444 [2022-11-21 16:10:28,786 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 5552 transitions. [2022-11-21 16:10:28,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 5552 transitions. [2022-11-21 16:10:28,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:10:28,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 5552 transitions. [2022-11-21 16:10:28,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 129.11627906976744) internal successors, (5552), 43 states have internal predecessors, (5552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:28,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 276.0) internal successors, (12144), 44 states have internal predecessors, (12144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:28,808 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 276.0) internal successors, (12144), 44 states have internal predecessors, (12144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:28,809 INFO L175 Difference]: Start difference. First operand has 527 places, 1016 transitions, 15979 flow. Second operand 43 states and 5552 transitions. [2022-11-21 16:10:28,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 1404 transitions, 21407 flow [2022-11-21 16:10:29,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 1404 transitions, 21007 flow, removed 49 selfloop flow, removed 29 redundant places. [2022-11-21 16:10:29,919 INFO L231 Difference]: Finished difference. Result has 549 places, 1052 transitions, 17167 flow [2022-11-21 16:10:29,920 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=15598, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1016, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=339, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=669, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=17167, PETRI_PLACES=549, PETRI_TRANSITIONS=1052} [2022-11-21 16:10:29,921 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 270 predicate places. [2022-11-21 16:10:29,921 INFO L495 AbstractCegarLoop]: Abstraction has has 549 places, 1052 transitions, 17167 flow [2022-11-21 16:10:29,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 122.47619047619048) internal successors, (2572), 21 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:29,922 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:10:29,922 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:10:29,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-21 16:10:29,923 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:10:29,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:29,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1072110005, now seen corresponding path program 1 times [2022-11-21 16:10:29,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:29,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705087384] [2022-11-21 16:10:29,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:29,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:33,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:10:33,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:33,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705087384] [2022-11-21 16:10:33,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705087384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:33,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:33,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-21 16:10:33,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644426706] [2022-11-21 16:10:33,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:33,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-21 16:10:33,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:33,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-21 16:10:33,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2022-11-21 16:10:33,607 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 276 [2022-11-21 16:10:33,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 1052 transitions, 17167 flow. Second operand has 23 states, 23 states have (on average 121.0) internal successors, (2783), 23 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:33,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:10:33,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 276 [2022-11-21 16:10:33,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:10:42,698 INFO L130 PetriNetUnfolder]: 4127/12315 cut-off events. [2022-11-21 16:10:42,698 INFO L131 PetriNetUnfolder]: For 139006/139011 co-relation queries the response was YES. [2022-11-21 16:10:42,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62545 conditions, 12315 events. 4127/12315 cut-off events. For 139006/139011 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 114095 event pairs, 849 based on Foata normal form. 17/12239 useless extension candidates. Maximal degree in co-relation 62319. Up to 2094 conditions per place. [2022-11-21 16:10:42,885 INFO L137 encePairwiseOnDemand]: 246/276 looper letters, 1201 selfloop transitions, 212 changer transitions 134/1655 dead transitions. [2022-11-21 16:10:42,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 1655 transitions, 27044 flow [2022-11-21 16:10:42,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-11-21 16:10:42,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2022-11-21 16:10:42,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 6823 transitions. [2022-11-21 16:10:42,896 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45779656468062263 [2022-11-21 16:10:42,896 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 6823 transitions. [2022-11-21 16:10:42,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 6823 transitions. [2022-11-21 16:10:42,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:10:42,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 6823 transitions. [2022-11-21 16:10:42,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 126.35185185185185) internal successors, (6823), 54 states have internal predecessors, (6823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:42,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 276.0) internal successors, (15180), 55 states have internal predecessors, (15180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:42,932 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 276.0) internal successors, (15180), 55 states have internal predecessors, (15180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:42,933 INFO L175 Difference]: Start difference. First operand has 549 places, 1052 transitions, 17167 flow. Second operand 54 states and 6823 transitions. [2022-11-21 16:10:42,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 1655 transitions, 27044 flow [2022-11-21 16:10:43,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 1655 transitions, 26202 flow, removed 173 selfloop flow, removed 39 redundant places. [2022-11-21 16:10:43,947 INFO L231 Difference]: Finished difference. Result has 575 places, 1105 transitions, 17514 flow [2022-11-21 16:10:43,948 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=16562, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1052, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=870, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=17514, PETRI_PLACES=575, PETRI_TRANSITIONS=1105} [2022-11-21 16:10:43,949 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 296 predicate places. [2022-11-21 16:10:43,949 INFO L495 AbstractCegarLoop]: Abstraction has has 575 places, 1105 transitions, 17514 flow [2022-11-21 16:10:43,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 121.0) internal successors, (2783), 23 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:43,950 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:10:43,950 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:10:43,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-21 16:10:43,950 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:10:43,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:43,951 INFO L85 PathProgramCache]: Analyzing trace with hash -11881588, now seen corresponding path program 1 times [2022-11-21 16:10:43,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:43,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423031251] [2022-11-21 16:10:43,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:43,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:46,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:10:46,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:46,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423031251] [2022-11-21 16:10:46,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423031251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:46,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:46,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-21 16:10:46,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236700883] [2022-11-21 16:10:46,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:46,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-21 16:10:46,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:46,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-21 16:10:46,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2022-11-21 16:10:46,130 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 276 [2022-11-21 16:10:46,131 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 1105 transitions, 17514 flow. Second operand has 23 states, 23 states have (on average 119.04347826086956) internal successors, (2738), 23 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:46,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:10:46,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 276 [2022-11-21 16:10:46,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:10:55,243 INFO L130 PetriNetUnfolder]: 4214/12209 cut-off events. [2022-11-21 16:10:55,243 INFO L131 PetriNetUnfolder]: For 132935/132942 co-relation queries the response was YES. [2022-11-21 16:10:55,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62377 conditions, 12209 events. 4214/12209 cut-off events. For 132935/132942 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 111358 event pairs, 903 based on Foata normal form. 23/12121 useless extension candidates. Maximal degree in co-relation 62149. Up to 2215 conditions per place. [2022-11-21 16:10:55,411 INFO L137 encePairwiseOnDemand]: 236/276 looper letters, 1038 selfloop transitions, 257 changer transitions 79/1480 dead transitions. [2022-11-21 16:10:55,412 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 608 places, 1480 transitions, 24715 flow [2022-11-21 16:10:55,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-21 16:10:55,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-11-21 16:10:55,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 5152 transitions. [2022-11-21 16:10:55,419 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45528455284552843 [2022-11-21 16:10:55,420 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 5152 transitions. [2022-11-21 16:10:55,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 5152 transitions. [2022-11-21 16:10:55,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:10:55,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 5152 transitions. [2022-11-21 16:10:55,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 125.65853658536585) internal successors, (5152), 41 states have internal predecessors, (5152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:55,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 276.0) internal successors, (11592), 42 states have internal predecessors, (11592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:55,438 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 276.0) internal successors, (11592), 42 states have internal predecessors, (11592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:55,439 INFO L175 Difference]: Start difference. First operand has 575 places, 1105 transitions, 17514 flow. Second operand 41 states and 5152 transitions. [2022-11-21 16:10:55,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 608 places, 1480 transitions, 24715 flow [2022-11-21 16:10:56,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 1480 transitions, 24488 flow, removed 21 selfloop flow, removed 20 redundant places. [2022-11-21 16:10:56,303 INFO L231 Difference]: Finished difference. Result has 598 places, 1127 transitions, 18429 flow [2022-11-21 16:10:56,305 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=17332, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=865, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=18429, PETRI_PLACES=598, PETRI_TRANSITIONS=1127} [2022-11-21 16:10:56,306 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 319 predicate places. [2022-11-21 16:10:56,306 INFO L495 AbstractCegarLoop]: Abstraction has has 598 places, 1127 transitions, 18429 flow [2022-11-21 16:10:56,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 119.04347826086956) internal successors, (2738), 23 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:56,307 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:10:56,307 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:10:56,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-21 16:10:56,307 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:10:56,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:56,308 INFO L85 PathProgramCache]: Analyzing trace with hash 2142203519, now seen corresponding path program 2 times [2022-11-21 16:10:56,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:56,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080878838] [2022-11-21 16:10:56,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:56,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:58,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:10:58,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:58,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080878838] [2022-11-21 16:10:58,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080878838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:58,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:58,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-21 16:10:58,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452700670] [2022-11-21 16:10:58,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:58,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-21 16:10:58,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:58,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-21 16:10:58,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2022-11-21 16:10:58,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 276 [2022-11-21 16:10:58,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 1127 transitions, 18429 flow. Second operand has 23 states, 23 states have (on average 121.0) internal successors, (2783), 23 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:58,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:10:58,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 276 [2022-11-21 16:10:58,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:11:08,461 INFO L130 PetriNetUnfolder]: 4888/14018 cut-off events. [2022-11-21 16:11:08,461 INFO L131 PetriNetUnfolder]: For 174451/174458 co-relation queries the response was YES. [2022-11-21 16:11:08,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76171 conditions, 14018 events. 4888/14018 cut-off events. For 174451/174458 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 130913 event pairs, 1196 based on Foata normal form. 13/13914 useless extension candidates. Maximal degree in co-relation 75935. Up to 2094 conditions per place. [2022-11-21 16:11:08,930 INFO L137 encePairwiseOnDemand]: 239/276 looper letters, 1274 selfloop transitions, 277 changer transitions 30/1689 dead transitions. [2022-11-21 16:11:08,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 640 places, 1689 transitions, 29077 flow [2022-11-21 16:11:08,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-21 16:11:08,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-11-21 16:11:08,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 5955 transitions. [2022-11-21 16:11:08,938 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45906567992599445 [2022-11-21 16:11:08,939 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 5955 transitions. [2022-11-21 16:11:08,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 5955 transitions. [2022-11-21 16:11:08,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:11:08,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 5955 transitions. [2022-11-21 16:11:08,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 126.70212765957447) internal successors, (5955), 47 states have internal predecessors, (5955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:08,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 276.0) internal successors, (13248), 48 states have internal predecessors, (13248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:08,963 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 276.0) internal successors, (13248), 48 states have internal predecessors, (13248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:08,963 INFO L175 Difference]: Start difference. First operand has 598 places, 1127 transitions, 18429 flow. Second operand 47 states and 5955 transitions. [2022-11-21 16:11:08,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 640 places, 1689 transitions, 29077 flow [2022-11-21 16:11:10,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 616 places, 1689 transitions, 28720 flow, removed 42 selfloop flow, removed 24 redundant places. [2022-11-21 16:11:10,179 INFO L231 Difference]: Finished difference. Result has 623 places, 1222 transitions, 21205 flow [2022-11-21 16:11:10,180 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=18140, PETRI_DIFFERENCE_MINUEND_PLACES=570, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=879, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=21205, PETRI_PLACES=623, PETRI_TRANSITIONS=1222} [2022-11-21 16:11:10,180 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 344 predicate places. [2022-11-21 16:11:10,181 INFO L495 AbstractCegarLoop]: Abstraction has has 623 places, 1222 transitions, 21205 flow [2022-11-21 16:11:10,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 121.0) internal successors, (2783), 23 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:10,181 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:11:10,181 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:10,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-21 16:11:10,182 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:11:10,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:10,182 INFO L85 PathProgramCache]: Analyzing trace with hash 126299125, now seen corresponding path program 3 times [2022-11-21 16:11:10,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:10,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573695277] [2022-11-21 16:11:10,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:10,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat