./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76559f7d-037c-4f22-aa21-18c59c59e36b/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76559f7d-037c-4f22-aa21-18c59c59e36b/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76559f7d-037c-4f22-aa21-18c59c59e36b/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76559f7d-037c-4f22-aa21-18c59c59e36b/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76559f7d-037c-4f22-aa21-18c59c59e36b/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76559f7d-037c-4f22-aa21-18c59c59e36b/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4d7ddac57159b9ffdb625c6e71ce7282574c20e8d076ceee5f26bffd815ae46 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:54:52,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:54:52,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:54:52,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:54:52,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:54:52,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:54:52,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:54:52,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:54:52,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:54:52,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:54:52,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:54:52,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:54:52,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:54:52,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:54:52,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:54:52,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:54:52,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:54:52,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:54:52,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:54:52,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:54:52,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:54:52,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:54:52,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:54:52,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:54:52,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:54:52,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:54:52,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:54:52,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:54:52,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:54:52,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:54:52,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:54:52,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:54:52,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:54:52,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:54:52,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:54:52,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:54:52,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:54:52,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:54:52,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:54:52,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:54:52,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:54:52,354 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76559f7d-037c-4f22-aa21-18c59c59e36b/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 19:54:52,382 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:54:52,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:54:52,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:54:52,383 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:54:52,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:54:52,384 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:54:52,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:54:52,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:54:52,385 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:54:52,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:54:52,385 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:54:52,385 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:54:52,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:54:52,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:54:52,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:54:52,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:54:52,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:54:52,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:54:52,387 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 19:54:52,387 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:54:52,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:54:52,387 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:54:52,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:54:52,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:54:52,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:54:52,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:54:52,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:54:52,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:54:52,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:54:52,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:54:52,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:54:52,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:54:52,390 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:54:52,394 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:54:52,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:54:52,394 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_76559f7d-037c-4f22-aa21-18c59c59e36b/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76559f7d-037c-4f22-aa21-18c59c59e36b/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4d7ddac57159b9ffdb625c6e71ce7282574c20e8d076ceee5f26bffd815ae46 [2022-11-18 19:54:52,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:54:52,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:54:52,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:54:52,722 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:54:52,723 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:54:52,725 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76559f7d-037c-4f22-aa21-18c59c59e36b/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2022-11-18 19:54:52,821 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76559f7d-037c-4f22-aa21-18c59c59e36b/bin/uautomizer-TMbwUNV5ro/data/9803baa07/60b6e62026ba4ce0b60f3d9d6e5a3b6e/FLAG5f6561330 [2022-11-18 19:54:53,445 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:54:53,446 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76559f7d-037c-4f22-aa21-18c59c59e36b/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2022-11-18 19:54:53,471 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76559f7d-037c-4f22-aa21-18c59c59e36b/bin/uautomizer-TMbwUNV5ro/data/9803baa07/60b6e62026ba4ce0b60f3d9d6e5a3b6e/FLAG5f6561330 [2022-11-18 19:54:53,684 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76559f7d-037c-4f22-aa21-18c59c59e36b/bin/uautomizer-TMbwUNV5ro/data/9803baa07/60b6e62026ba4ce0b60f3d9d6e5a3b6e [2022-11-18 19:54:53,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:54:53,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:54:53,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:54:53,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:54:53,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:54:53,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:54:53" (1/1) ... [2022-11-18 19:54:53,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e07321c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:53, skipping insertion in model container [2022-11-18 19:54:53,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:54:53" (1/1) ... [2022-11-18 19:54:53,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:54:53,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:54:54,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:54:54,468 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:54:54,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:54:54,624 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:54:54,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:54 WrapperNode [2022-11-18 19:54:54,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:54:54,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:54:54,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:54:54,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:54:54,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:54" (1/1) ... [2022-11-18 19:54:54,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:54" (1/1) ... [2022-11-18 19:54:54,703 INFO L138 Inliner]: procedures = 368, calls = 31, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 209 [2022-11-18 19:54:54,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:54:54,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:54:54,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:54:54,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:54:54,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:54" (1/1) ... [2022-11-18 19:54:54,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:54" (1/1) ... [2022-11-18 19:54:54,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:54" (1/1) ... [2022-11-18 19:54:54,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:54" (1/1) ... [2022-11-18 19:54:54,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:54" (1/1) ... [2022-11-18 19:54:54,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:54" (1/1) ... [2022-11-18 19:54:54,744 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:54" (1/1) ... [2022-11-18 19:54:54,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:54" (1/1) ... [2022-11-18 19:54:54,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:54:54,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:54:54,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:54:54,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:54:54,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:54" (1/1) ... [2022-11-18 19:54:54,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:54:54,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76559f7d-037c-4f22-aa21-18c59c59e36b/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:54:54,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76559f7d-037c-4f22-aa21-18c59c59e36b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:54:54,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76559f7d-037c-4f22-aa21-18c59c59e36b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:54:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:54:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:54:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:54:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:54:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:54:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:54:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:54:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:54:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:54:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 19:54:54,843 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 19:54:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:54:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:54:54,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:54:54,853 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:54:55,088 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:54:55,090 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:54:55,750 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:54:55,765 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:54:55,771 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:54:55,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:54:55 BoogieIcfgContainer [2022-11-18 19:54:55,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:54:55,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:54:55,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:54:55,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:54:55,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:54:53" (1/3) ... [2022-11-18 19:54:55,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657147ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:54:55, skipping insertion in model container [2022-11-18 19:54:55,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:54" (2/3) ... [2022-11-18 19:54:55,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657147ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:54:55, skipping insertion in model container [2022-11-18 19:54:55,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:54:55" (3/3) ... [2022-11-18 19:54:55,784 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_06-ptra_nr.i [2022-11-18 19:54:55,794 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:54:55,805 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:54:55,806 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-18 19:54:55,806 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:54:55,938 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 19:54:55,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 248 transitions, 501 flow [2022-11-18 19:54:56,103 INFO L130 PetriNetUnfolder]: 0/247 cut-off events. [2022-11-18 19:54:56,103 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:54:56,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 247 events. 0/247 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 93 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-18 19:54:56,107 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 248 transitions, 501 flow [2022-11-18 19:54:56,113 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 251 places, 247 transitions, 497 flow [2022-11-18 19:54:56,124 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:54:56,132 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;@55b7a026, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:54:56,132 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-11-18 19:54:56,147 INFO L130 PetriNetUnfolder]: 0/43 cut-off events. [2022-11-18 19:54:56,147 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:54:56,147 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:54:56,148 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:56,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:54:56,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:56,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1292603453, now seen corresponding path program 1 times [2022-11-18 19:54:56,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:56,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191326643] [2022-11-18 19:54:56,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:56,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:57,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:57,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:57,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191326643] [2022-11-18 19:54:57,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191326643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:57,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:57,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:54:57,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923785557] [2022-11-18 19:54:57,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:57,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:54:57,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:57,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:54:57,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:54:57,108 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 248 [2022-11-18 19:54:57,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 247 transitions, 497 flow. Second operand has 6 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:57,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:54:57,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 248 [2022-11-18 19:54:57,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:54:57,892 INFO L130 PetriNetUnfolder]: 360/1333 cut-off events. [2022-11-18 19:54:57,892 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:54:57,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2158 conditions, 1333 events. 360/1333 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6837 event pairs, 360 based on Foata normal form. 0/1158 useless extension candidates. Maximal degree in co-relation 1956. Up to 806 conditions per place. [2022-11-18 19:54:57,912 INFO L137 encePairwiseOnDemand]: 230/248 looper letters, 85 selfloop transitions, 15 changer transitions 0/244 dead transitions. [2022-11-18 19:54:57,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 244 transitions, 691 flow [2022-11-18 19:54:57,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:54:57,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:54:57,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 973 transitions. [2022-11-18 19:54:57,938 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6538978494623656 [2022-11-18 19:54:57,939 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 973 transitions. [2022-11-18 19:54:57,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 973 transitions. [2022-11-18 19:54:57,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:54:57,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 973 transitions. [2022-11-18 19:54:57,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.16666666666666) internal successors, (973), 6 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:57,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:57,966 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:57,968 INFO L175 Difference]: Start difference. First operand has 251 places, 247 transitions, 497 flow. Second operand 6 states and 973 transitions. [2022-11-18 19:54:57,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 244 transitions, 691 flow [2022-11-18 19:54:57,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 244 transitions, 690 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:54:57,983 INFO L231 Difference]: Finished difference. Result has 252 places, 244 transitions, 520 flow [2022-11-18 19:54:57,985 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=520, PETRI_PLACES=252, PETRI_TRANSITIONS=244} [2022-11-18 19:54:57,991 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 1 predicate places. [2022-11-18 19:54:57,991 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 244 transitions, 520 flow [2022-11-18 19:54:57,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:57,993 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:54:57,994 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:57,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:54:57,994 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:54:57,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:57,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1004537384, now seen corresponding path program 1 times [2022-11-18 19:54:57,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:57,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178363255] [2022-11-18 19:54:57,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:57,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:58,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:58,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:58,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178363255] [2022-11-18 19:54:58,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178363255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:58,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:58,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:54:58,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919675470] [2022-11-18 19:54:58,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:58,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:54:58,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:58,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:54:58,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:54:58,520 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 248 [2022-11-18 19:54:58,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 244 transitions, 520 flow. Second operand has 6 states, 6 states have (on average 147.5) internal successors, (885), 6 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:58,522 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:54:58,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 248 [2022-11-18 19:54:58,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:54:59,147 INFO L130 PetriNetUnfolder]: 360/1330 cut-off events. [2022-11-18 19:54:59,147 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 19:54:59,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2167 conditions, 1330 events. 360/1330 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6879 event pairs, 360 based on Foata normal form. 0/1158 useless extension candidates. Maximal degree in co-relation 1980. Up to 803 conditions per place. [2022-11-18 19:54:59,156 INFO L137 encePairwiseOnDemand]: 230/248 looper letters, 82 selfloop transitions, 15 changer transitions 0/241 dead transitions. [2022-11-18 19:54:59,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 241 transitions, 708 flow [2022-11-18 19:54:59,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:54:59,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:54:59,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 970 transitions. [2022-11-18 19:54:59,161 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6518817204301075 [2022-11-18 19:54:59,162 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 970 transitions. [2022-11-18 19:54:59,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 970 transitions. [2022-11-18 19:54:59,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:54:59,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 970 transitions. [2022-11-18 19:54:59,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 161.66666666666666) internal successors, (970), 6 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:59,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:59,171 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:59,171 INFO L175 Difference]: Start difference. First operand has 252 places, 244 transitions, 520 flow. Second operand 6 states and 970 transitions. [2022-11-18 19:54:59,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 241 transitions, 708 flow [2022-11-18 19:54:59,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 241 transitions, 678 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:54:59,185 INFO L231 Difference]: Finished difference. Result has 249 places, 241 transitions, 514 flow [2022-11-18 19:54:59,186 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=514, PETRI_PLACES=249, PETRI_TRANSITIONS=241} [2022-11-18 19:54:59,187 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -2 predicate places. [2022-11-18 19:54:59,187 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 241 transitions, 514 flow [2022-11-18 19:54:59,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 147.5) internal successors, (885), 6 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:59,188 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:54:59,189 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] [2022-11-18 19:54:59,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:54:59,190 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:54:59,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:59,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1921770962, now seen corresponding path program 1 times [2022-11-18 19:54:59,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:59,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750550890] [2022-11-18 19:54:59,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:59,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:59,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:59,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:59,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750550890] [2022-11-18 19:54:59,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750550890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:59,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:59,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:54:59,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435349958] [2022-11-18 19:54:59,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:59,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:54:59,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:59,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:54:59,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:54:59,290 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 248 [2022-11-18 19:54:59,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 241 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:59,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:54:59,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 248 [2022-11-18 19:54:59,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:54:59,395 INFO L130 PetriNetUnfolder]: 18/391 cut-off events. [2022-11-18 19:54:59,396 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:54:59,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 391 events. 18/391 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 815 event pairs, 18 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 309. Up to 56 conditions per place. [2022-11-18 19:54:59,398 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 19 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2022-11-18 19:54:59,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 240 transitions, 554 flow [2022-11-18 19:54:59,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:54:59,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:54:59,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 700 transitions. [2022-11-18 19:54:59,400 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9408602150537635 [2022-11-18 19:54:59,401 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 700 transitions. [2022-11-18 19:54:59,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 700 transitions. [2022-11-18 19:54:59,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:54:59,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 700 transitions. [2022-11-18 19:54:59,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:59,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:59,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:59,408 INFO L175 Difference]: Start difference. First operand has 249 places, 241 transitions, 514 flow. Second operand 3 states and 700 transitions. [2022-11-18 19:54:59,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 240 transitions, 554 flow [2022-11-18 19:54:59,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 240 transitions, 524 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:54:59,414 INFO L231 Difference]: Finished difference. Result has 245 places, 240 transitions, 486 flow [2022-11-18 19:54:59,414 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=245, PETRI_TRANSITIONS=240} [2022-11-18 19:54:59,417 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -6 predicate places. [2022-11-18 19:54:59,417 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 240 transitions, 486 flow [2022-11-18 19:54:59,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:59,418 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:54:59,418 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] [2022-11-18 19:54:59,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:54:59,419 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:54:59,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:59,420 INFO L85 PathProgramCache]: Analyzing trace with hash -599217216, now seen corresponding path program 1 times [2022-11-18 19:54:59,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:59,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764208184] [2022-11-18 19:54:59,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:59,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:59,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:59,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:59,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764208184] [2022-11-18 19:54:59,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764208184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:59,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:59,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:54:59,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629362184] [2022-11-18 19:54:59,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:59,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:54:59,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:59,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:54:59,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:54:59,513 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 248 [2022-11-18 19:54:59,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 240 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:59,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:54:59,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 248 [2022-11-18 19:54:59,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:54:59,593 INFO L130 PetriNetUnfolder]: 8/336 cut-off events. [2022-11-18 19:54:59,594 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:54:59,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 336 events. 8/336 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 496 event pairs, 8 based on Foata normal form. 0/316 useless extension candidates. Maximal degree in co-relation 304. Up to 27 conditions per place. [2022-11-18 19:54:59,596 INFO L137 encePairwiseOnDemand]: 242/248 looper letters, 12 selfloop transitions, 1 changer transitions 0/235 dead transitions. [2022-11-18 19:54:59,596 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 235 transitions, 502 flow [2022-11-18 19:54:59,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:54:59,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:54:59,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 705 transitions. [2022-11-18 19:54:59,598 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9475806451612904 [2022-11-18 19:54:59,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 705 transitions. [2022-11-18 19:54:59,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 705 transitions. [2022-11-18 19:54:59,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:54:59,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 705 transitions. [2022-11-18 19:54:59,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:59,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:59,609 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:59,609 INFO L175 Difference]: Start difference. First operand has 245 places, 240 transitions, 486 flow. Second operand 3 states and 705 transitions. [2022-11-18 19:54:59,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 235 transitions, 502 flow [2022-11-18 19:54:59,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 235 transitions, 498 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:54:59,615 INFO L231 Difference]: Finished difference. Result has 240 places, 235 transitions, 474 flow [2022-11-18 19:54:59,616 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=474, PETRI_PLACES=240, PETRI_TRANSITIONS=235} [2022-11-18 19:54:59,618 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -11 predicate places. [2022-11-18 19:54:59,618 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 235 transitions, 474 flow [2022-11-18 19:54:59,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:59,625 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:54:59,625 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:59,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:54:59,626 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:54:59,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:59,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1655649905, now seen corresponding path program 1 times [2022-11-18 19:54:59,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:59,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096417046] [2022-11-18 19:54:59,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:59,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:00,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:00,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:00,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096417046] [2022-11-18 19:55:00,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096417046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:00,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:00,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:55:00,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653976004] [2022-11-18 19:55:00,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:00,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:55:00,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:00,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:55:00,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:55:00,281 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 248 [2022-11-18 19:55:00,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 235 transitions, 474 flow. Second operand has 6 states, 6 states have (on average 158.16666666666666) internal successors, (949), 6 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:00,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:00,284 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 248 [2022-11-18 19:55:00,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:00,901 INFO L130 PetriNetUnfolder]: 416/1410 cut-off events. [2022-11-18 19:55:00,901 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:55:00,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2336 conditions, 1410 events. 416/1410 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 7051 event pairs, 416 based on Foata normal form. 0/1259 useless extension candidates. Maximal degree in co-relation 2257. Up to 916 conditions per place. [2022-11-18 19:55:00,908 INFO L137 encePairwiseOnDemand]: 242/248 looper letters, 83 selfloop transitions, 5 changer transitions 0/234 dead transitions. [2022-11-18 19:55:00,908 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 234 transitions, 648 flow [2022-11-18 19:55:00,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:55:00,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:55:00,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1007 transitions. [2022-11-18 19:55:00,912 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.676747311827957 [2022-11-18 19:55:00,912 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1007 transitions. [2022-11-18 19:55:00,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1007 transitions. [2022-11-18 19:55:00,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:00,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1007 transitions. [2022-11-18 19:55:00,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:00,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:00,919 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:00,919 INFO L175 Difference]: Start difference. First operand has 240 places, 235 transitions, 474 flow. Second operand 6 states and 1007 transitions. [2022-11-18 19:55:00,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 234 transitions, 648 flow [2022-11-18 19:55:00,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 234 transitions, 647 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:55:00,924 INFO L231 Difference]: Finished difference. Result has 243 places, 234 transitions, 481 flow [2022-11-18 19:55:00,925 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=481, PETRI_PLACES=243, PETRI_TRANSITIONS=234} [2022-11-18 19:55:00,926 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -8 predicate places. [2022-11-18 19:55:00,926 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 234 transitions, 481 flow [2022-11-18 19:55:00,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 158.16666666666666) internal successors, (949), 6 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:00,926 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:00,927 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] [2022-11-18 19:55:00,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:55:00,927 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:55:00,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:00,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1719227292, now seen corresponding path program 1 times [2022-11-18 19:55:00,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:00,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216729650] [2022-11-18 19:55:00,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:00,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:01,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:01,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:01,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216729650] [2022-11-18 19:55:01,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216729650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:01,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:01,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:55:01,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754052975] [2022-11-18 19:55:01,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:01,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:55:01,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:01,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:55:01,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:55:01,005 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 248 [2022-11-18 19:55:01,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 234 transitions, 481 flow. Second operand has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:01,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:01,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 248 [2022-11-18 19:55:01,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:01,052 INFO L130 PetriNetUnfolder]: 0/233 cut-off events. [2022-11-18 19:55:01,053 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:55:01,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 233 events. 0/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2022-11-18 19:55:01,054 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 7 selfloop transitions, 2 changer transitions 0/233 dead transitions. [2022-11-18 19:55:01,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 233 transitions, 497 flow [2022-11-18 19:55:01,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:55:01,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:55:01,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 724 transitions. [2022-11-18 19:55:01,056 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9731182795698925 [2022-11-18 19:55:01,056 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 724 transitions. [2022-11-18 19:55:01,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 724 transitions. [2022-11-18 19:55:01,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:01,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 724 transitions. [2022-11-18 19:55:01,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:01,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:01,061 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:01,061 INFO L175 Difference]: Start difference. First operand has 243 places, 234 transitions, 481 flow. Second operand 3 states and 724 transitions. [2022-11-18 19:55:01,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 233 transitions, 497 flow [2022-11-18 19:55:01,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 233 transitions, 487 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:55:01,066 INFO L231 Difference]: Finished difference. Result has 239 places, 233 transitions, 473 flow [2022-11-18 19:55:01,067 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=473, PETRI_PLACES=239, PETRI_TRANSITIONS=233} [2022-11-18 19:55:01,067 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -12 predicate places. [2022-11-18 19:55:01,067 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 233 transitions, 473 flow [2022-11-18 19:55:01,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:01,068 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:01,068 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:55:01,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:55:01,069 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:55:01,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:01,069 INFO L85 PathProgramCache]: Analyzing trace with hash -457398828, now seen corresponding path program 1 times [2022-11-18 19:55:01,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:01,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881315055] [2022-11-18 19:55:01,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:01,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:01,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:01,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:01,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881315055] [2022-11-18 19:55:01,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881315055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:01,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:01,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:55:01,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252846932] [2022-11-18 19:55:01,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:01,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:55:01,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:01,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:55:01,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:55:01,143 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 248 [2022-11-18 19:55:01,144 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 233 transitions, 473 flow. Second operand has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:01,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:01,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 248 [2022-11-18 19:55:01,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:01,182 INFO L130 PetriNetUnfolder]: 0/232 cut-off events. [2022-11-18 19:55:01,182 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:55:01,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 232 events. 0/232 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-11-18 19:55:01,183 INFO L137 encePairwiseOnDemand]: 246/248 looper letters, 4 selfloop transitions, 1 changer transitions 0/232 dead transitions. [2022-11-18 19:55:01,183 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 232 transitions, 481 flow [2022-11-18 19:55:01,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:55:01,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:55:01,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2022-11-18 19:55:01,186 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9798387096774194 [2022-11-18 19:55:01,186 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 729 transitions. [2022-11-18 19:55:01,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions. [2022-11-18 19:55:01,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:01,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions. [2022-11-18 19:55:01,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:01,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:01,190 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:01,191 INFO L175 Difference]: Start difference. First operand has 239 places, 233 transitions, 473 flow. Second operand 3 states and 729 transitions. [2022-11-18 19:55:01,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 232 transitions, 481 flow [2022-11-18 19:55:01,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 232 transitions, 477 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:55:01,196 INFO L231 Difference]: Finished difference. Result has 238 places, 232 transitions, 469 flow [2022-11-18 19:55:01,196 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=469, PETRI_PLACES=238, PETRI_TRANSITIONS=232} [2022-11-18 19:55:01,197 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -13 predicate places. [2022-11-18 19:55:01,197 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 232 transitions, 469 flow [2022-11-18 19:55:01,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:01,198 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:01,198 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] [2022-11-18 19:55:01,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:55:01,198 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:55:01,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:01,199 INFO L85 PathProgramCache]: Analyzing trace with hash -430693432, now seen corresponding path program 1 times [2022-11-18 19:55:01,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:01,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816346023] [2022-11-18 19:55:01,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:01,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:01,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:01,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:01,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816346023] [2022-11-18 19:55:01,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816346023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:01,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:01,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:55:01,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242044784] [2022-11-18 19:55:01,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:01,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:55:01,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:01,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:55:01,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:55:01,903 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 248 [2022-11-18 19:55:01,904 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 232 transitions, 469 flow. Second operand has 6 states, 6 states have (on average 163.66666666666666) internal successors, (982), 6 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:01,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:01,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 248 [2022-11-18 19:55:01,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:03,016 INFO L130 PetriNetUnfolder]: 748/2427 cut-off events. [2022-11-18 19:55:03,016 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:55:03,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4066 conditions, 2427 events. 748/2427 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 15221 event pairs, 76 based on Foata normal form. 0/2180 useless extension candidates. Maximal degree in co-relation 3988. Up to 791 conditions per place. [2022-11-18 19:55:03,030 INFO L137 encePairwiseOnDemand]: 220/248 looper letters, 171 selfloop transitions, 70 changer transitions 0/388 dead transitions. [2022-11-18 19:55:03,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 388 transitions, 1263 flow [2022-11-18 19:55:03,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:55:03,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:55:03,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1179 transitions. [2022-11-18 19:55:03,034 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7923387096774194 [2022-11-18 19:55:03,034 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1179 transitions. [2022-11-18 19:55:03,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1179 transitions. [2022-11-18 19:55:03,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:03,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1179 transitions. [2022-11-18 19:55:03,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 196.5) internal successors, (1179), 6 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:03,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:03,043 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:03,043 INFO L175 Difference]: Start difference. First operand has 238 places, 232 transitions, 469 flow. Second operand 6 states and 1179 transitions. [2022-11-18 19:55:03,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 388 transitions, 1263 flow [2022-11-18 19:55:03,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 388 transitions, 1262 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:55:03,055 INFO L231 Difference]: Finished difference. Result has 246 places, 302 transitions, 946 flow [2022-11-18 19:55:03,056 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=946, PETRI_PLACES=246, PETRI_TRANSITIONS=302} [2022-11-18 19:55:03,060 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -5 predicate places. [2022-11-18 19:55:03,060 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 302 transitions, 946 flow [2022-11-18 19:55:03,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.66666666666666) internal successors, (982), 6 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:03,061 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:03,061 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:55:03,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:55:03,062 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:55:03,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:03,063 INFO L85 PathProgramCache]: Analyzing trace with hash -432670038, now seen corresponding path program 1 times [2022-11-18 19:55:03,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:03,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108233045] [2022-11-18 19:55:03,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:03,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:03,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:03,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:03,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108233045] [2022-11-18 19:55:03,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108233045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:03,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:03,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:55:03,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138461050] [2022-11-18 19:55:03,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:03,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:55:03,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:03,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:55:03,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:55:03,921 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 248 [2022-11-18 19:55:03,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 302 transitions, 946 flow. Second operand has 6 states, 6 states have (on average 164.5) internal successors, (987), 6 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:03,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:03,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 248 [2022-11-18 19:55:03,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:04,924 INFO L130 PetriNetUnfolder]: 836/2741 cut-off events. [2022-11-18 19:55:04,924 INFO L131 PetriNetUnfolder]: For 879/879 co-relation queries the response was YES. [2022-11-18 19:55:04,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5985 conditions, 2741 events. 836/2741 cut-off events. For 879/879 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 17638 event pairs, 379 based on Foata normal form. 0/2556 useless extension candidates. Maximal degree in co-relation 5905. Up to 1700 conditions per place. [2022-11-18 19:55:04,941 INFO L137 encePairwiseOnDemand]: 233/248 looper letters, 166 selfloop transitions, 48 changer transitions 0/362 dead transitions. [2022-11-18 19:55:04,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 362 transitions, 1590 flow [2022-11-18 19:55:04,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:55:04,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:55:04,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1079 transitions. [2022-11-18 19:55:04,945 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7251344086021505 [2022-11-18 19:55:04,945 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1079 transitions. [2022-11-18 19:55:04,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1079 transitions. [2022-11-18 19:55:04,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:04,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1079 transitions. [2022-11-18 19:55:04,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.83333333333334) internal successors, (1079), 6 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:04,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:04,953 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:04,953 INFO L175 Difference]: Start difference. First operand has 246 places, 302 transitions, 946 flow. Second operand 6 states and 1079 transitions. [2022-11-18 19:55:04,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 362 transitions, 1590 flow [2022-11-18 19:55:04,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 362 transitions, 1590 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:55:04,973 INFO L231 Difference]: Finished difference. Result has 256 places, 345 transitions, 1334 flow [2022-11-18 19:55:04,974 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1334, PETRI_PLACES=256, PETRI_TRANSITIONS=345} [2022-11-18 19:55:04,975 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 5 predicate places. [2022-11-18 19:55:04,975 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 345 transitions, 1334 flow [2022-11-18 19:55:04,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.5) internal successors, (987), 6 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:04,976 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:04,976 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] [2022-11-18 19:55:04,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:55:04,976 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:55:04,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:04,977 INFO L85 PathProgramCache]: Analyzing trace with hash -762713712, now seen corresponding path program 1 times [2022-11-18 19:55:04,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:04,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542303948] [2022-11-18 19:55:04,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:04,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:05,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:05,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:05,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542303948] [2022-11-18 19:55:05,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542303948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:05,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:05,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:55:05,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298046447] [2022-11-18 19:55:05,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:05,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:55:05,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:05,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:55:05,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:55:05,672 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 248 [2022-11-18 19:55:05,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 345 transitions, 1334 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) [2022-11-18 19:55:05,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:05,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 248 [2022-11-18 19:55:05,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:07,039 INFO L130 PetriNetUnfolder]: 985/3392 cut-off events. [2022-11-18 19:55:07,039 INFO L131 PetriNetUnfolder]: For 2072/2188 co-relation queries the response was YES. [2022-11-18 19:55:07,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8255 conditions, 3392 events. 985/3392 cut-off events. For 2072/2188 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 24019 event pairs, 172 based on Foata normal form. 0/3253 useless extension candidates. Maximal degree in co-relation 8167. Up to 1579 conditions per place. [2022-11-18 19:55:07,071 INFO L137 encePairwiseOnDemand]: 226/248 looper letters, 272 selfloop transitions, 135 changer transitions 4/560 dead transitions. [2022-11-18 19:55:07,072 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 560 transitions, 3248 flow [2022-11-18 19:55:07,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:55:07,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:55:07,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1146 transitions. [2022-11-18 19:55:07,076 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7701612903225806 [2022-11-18 19:55:07,076 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1146 transitions. [2022-11-18 19:55:07,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1146 transitions. [2022-11-18 19:55:07,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:07,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1146 transitions. [2022-11-18 19:55:07,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:07,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:07,087 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:07,087 INFO L175 Difference]: Start difference. First operand has 256 places, 345 transitions, 1334 flow. Second operand 6 states and 1146 transitions. [2022-11-18 19:55:07,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 560 transitions, 3248 flow [2022-11-18 19:55:07,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 560 transitions, 3230 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-18 19:55:07,114 INFO L231 Difference]: Finished difference. Result has 266 places, 475 transitions, 2674 flow [2022-11-18 19:55:07,115 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=1316, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2674, PETRI_PLACES=266, PETRI_TRANSITIONS=475} [2022-11-18 19:55:07,116 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 15 predicate places. [2022-11-18 19:55:07,116 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 475 transitions, 2674 flow [2022-11-18 19:55:07,119 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) [2022-11-18 19:55:07,119 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:07,120 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] [2022-11-18 19:55:07,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:55:07,120 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:55:07,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:07,121 INFO L85 PathProgramCache]: Analyzing trace with hash 29735855, now seen corresponding path program 1 times [2022-11-18 19:55:07,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:07,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069927818] [2022-11-18 19:55:07,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:07,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:07,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:07,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:07,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069927818] [2022-11-18 19:55:07,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069927818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:07,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:07,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:55:07,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344736709] [2022-11-18 19:55:07,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:07,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:55:07,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:07,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:55:07,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:55:07,805 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 248 [2022-11-18 19:55:07,806 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 475 transitions, 2674 flow. Second operand has 6 states, 6 states have (on average 165.5) internal successors, (993), 6 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:07,806 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:07,806 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 248 [2022-11-18 19:55:07,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:08,943 INFO L130 PetriNetUnfolder]: 1055/3531 cut-off events. [2022-11-18 19:55:08,943 INFO L131 PetriNetUnfolder]: For 3965/4034 co-relation queries the response was YES. [2022-11-18 19:55:08,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10396 conditions, 3531 events. 1055/3531 cut-off events. For 3965/4034 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 25102 event pairs, 258 based on Foata normal form. 0/3438 useless extension candidates. Maximal degree in co-relation 10306. Up to 2152 conditions per place. [2022-11-18 19:55:08,990 INFO L137 encePairwiseOnDemand]: 233/248 looper letters, 331 selfloop transitions, 62 changer transitions 0/542 dead transitions. [2022-11-18 19:55:08,990 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 542 transitions, 3874 flow [2022-11-18 19:55:08,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:55:08,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:55:08,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1079 transitions. [2022-11-18 19:55:08,993 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7251344086021505 [2022-11-18 19:55:08,994 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1079 transitions. [2022-11-18 19:55:08,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1079 transitions. [2022-11-18 19:55:08,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:08,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1079 transitions. [2022-11-18 19:55:08,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.83333333333334) internal successors, (1079), 6 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:09,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:09,000 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:09,001 INFO L175 Difference]: Start difference. First operand has 266 places, 475 transitions, 2674 flow. Second operand 6 states and 1079 transitions. [2022-11-18 19:55:09,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 542 transitions, 3874 flow [2022-11-18 19:55:09,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 542 transitions, 3838 flow, removed 18 selfloop flow, removed 0 redundant places. [2022-11-18 19:55:09,040 INFO L231 Difference]: Finished difference. Result has 276 places, 524 transitions, 3264 flow [2022-11-18 19:55:09,041 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=2638, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3264, PETRI_PLACES=276, PETRI_TRANSITIONS=524} [2022-11-18 19:55:09,042 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 25 predicate places. [2022-11-18 19:55:09,042 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 524 transitions, 3264 flow [2022-11-18 19:55:09,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.5) internal successors, (993), 6 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:09,042 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:09,043 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:55:09,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:55:09,043 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:55:09,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:09,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1030604795, now seen corresponding path program 1 times [2022-11-18 19:55:09,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:09,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44740177] [2022-11-18 19:55:09,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:09,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:10,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:10,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:10,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44740177] [2022-11-18 19:55:10,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44740177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:10,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:10,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:55:10,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568838624] [2022-11-18 19:55:10,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:10,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:55:10,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:10,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:55:10,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:55:10,886 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-18 19:55:10,889 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 524 transitions, 3264 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:10,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:10,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-18 19:55:10,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:14,909 INFO L130 PetriNetUnfolder]: 2033/6688 cut-off events. [2022-11-18 19:55:14,909 INFO L131 PetriNetUnfolder]: For 10476/10587 co-relation queries the response was YES. [2022-11-18 19:55:14,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20950 conditions, 6688 events. 2033/6688 cut-off events. For 10476/10587 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 56723 event pairs, 291 based on Foata normal form. 43/6614 useless extension candidates. Maximal degree in co-relation 20846. Up to 1329 conditions per place. [2022-11-18 19:55:14,969 INFO L137 encePairwiseOnDemand]: 212/248 looper letters, 756 selfloop transitions, 251 changer transitions 4/1142 dead transitions. [2022-11-18 19:55:14,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 1142 transitions, 9952 flow [2022-11-18 19:55:14,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 19:55:14,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-11-18 19:55:14,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3893 transitions. [2022-11-18 19:55:14,979 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6279032258064516 [2022-11-18 19:55:14,980 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3893 transitions. [2022-11-18 19:55:14,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3893 transitions. [2022-11-18 19:55:14,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:14,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3893 transitions. [2022-11-18 19:55:14,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 155.72) internal successors, (3893), 25 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:15,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 248.0) internal successors, (6448), 26 states have internal predecessors, (6448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:15,005 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 248.0) internal successors, (6448), 26 states have internal predecessors, (6448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:15,006 INFO L175 Difference]: Start difference. First operand has 276 places, 524 transitions, 3264 flow. Second operand 25 states and 3893 transitions. [2022-11-18 19:55:15,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 1142 transitions, 9952 flow [2022-11-18 19:55:15,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 1142 transitions, 9728 flow, removed 112 selfloop flow, removed 0 redundant places. [2022-11-18 19:55:15,112 INFO L231 Difference]: Finished difference. Result has 321 places, 697 transitions, 5826 flow [2022-11-18 19:55:15,113 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=3152, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=5826, PETRI_PLACES=321, PETRI_TRANSITIONS=697} [2022-11-18 19:55:15,113 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 70 predicate places. [2022-11-18 19:55:15,113 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 697 transitions, 5826 flow [2022-11-18 19:55:15,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:15,115 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:15,115 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:55:15,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:55:15,115 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:55:15,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:15,116 INFO L85 PathProgramCache]: Analyzing trace with hash -363914509, now seen corresponding path program 2 times [2022-11-18 19:55:15,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:15,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877702631] [2022-11-18 19:55:15,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:15,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:16,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:16,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:16,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877702631] [2022-11-18 19:55:16,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877702631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:16,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:16,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:55:16,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303123436] [2022-11-18 19:55:16,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:16,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:55:16,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:16,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:55:16,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:55:16,337 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-18 19:55:16,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 697 transitions, 5826 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:16,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:16,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-18 19:55:16,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:20,634 INFO L130 PetriNetUnfolder]: 2140/6927 cut-off events. [2022-11-18 19:55:20,634 INFO L131 PetriNetUnfolder]: For 16585/16744 co-relation queries the response was YES. [2022-11-18 19:55:20,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24546 conditions, 6927 events. 2140/6927 cut-off events. For 16585/16744 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 58654 event pairs, 291 based on Foata normal form. 56/6867 useless extension candidates. Maximal degree in co-relation 24417. Up to 2228 conditions per place. [2022-11-18 19:55:20,718 INFO L137 encePairwiseOnDemand]: 218/248 looper letters, 779 selfloop transitions, 219 changer transitions 7/1136 dead transitions. [2022-11-18 19:55:20,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 1136 transitions, 11134 flow [2022-11-18 19:55:20,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-18 19:55:20,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-18 19:55:20,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 4441 transitions. [2022-11-18 19:55:20,731 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6174916573971079 [2022-11-18 19:55:20,732 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 4441 transitions. [2022-11-18 19:55:20,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 4441 transitions. [2022-11-18 19:55:20,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:20,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 4441 transitions. [2022-11-18 19:55:20,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 153.13793103448276) internal successors, (4441), 29 states have internal predecessors, (4441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:20,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 248.0) internal successors, (7440), 30 states have internal predecessors, (7440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:20,761 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 248.0) internal successors, (7440), 30 states have internal predecessors, (7440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:20,762 INFO L175 Difference]: Start difference. First operand has 321 places, 697 transitions, 5826 flow. Second operand 29 states and 4441 transitions. [2022-11-18 19:55:20,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 1136 transitions, 11134 flow [2022-11-18 19:55:20,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 1136 transitions, 11108 flow, removed 11 selfloop flow, removed 2 redundant places. [2022-11-18 19:55:20,884 INFO L231 Difference]: Finished difference. Result has 355 places, 774 transitions, 7291 flow [2022-11-18 19:55:20,885 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=5800, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=7291, PETRI_PLACES=355, PETRI_TRANSITIONS=774} [2022-11-18 19:55:20,885 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 104 predicate places. [2022-11-18 19:55:20,885 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 774 transitions, 7291 flow [2022-11-18 19:55:20,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:20,886 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:20,886 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:55:20,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:55:20,887 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:55:20,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:20,887 INFO L85 PathProgramCache]: Analyzing trace with hash 2054598988, now seen corresponding path program 1 times [2022-11-18 19:55:20,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:20,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010425559] [2022-11-18 19:55:20,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:20,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:22,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:22,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:22,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010425559] [2022-11-18 19:55:22,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010425559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:22,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:22,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:55:22,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296973775] [2022-11-18 19:55:22,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:22,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:55:22,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:22,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:55:22,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:55:22,146 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 248 [2022-11-18 19:55:22,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 774 transitions, 7291 flow. Second operand has 13 states, 13 states have (on average 140.84615384615384) internal successors, (1831), 13 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:22,149 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:22,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 248 [2022-11-18 19:55:22,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:25,711 INFO L130 PetriNetUnfolder]: 2204/7071 cut-off events. [2022-11-18 19:55:25,711 INFO L131 PetriNetUnfolder]: For 23608/23738 co-relation queries the response was YES. [2022-11-18 19:55:25,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27231 conditions, 7071 events. 2204/7071 cut-off events. For 23608/23738 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 60087 event pairs, 363 based on Foata normal form. 47/6984 useless extension candidates. Maximal degree in co-relation 27092. Up to 3453 conditions per place. [2022-11-18 19:55:25,794 INFO L137 encePairwiseOnDemand]: 228/248 looper letters, 730 selfloop transitions, 160 changer transitions 2/1020 dead transitions. [2022-11-18 19:55:25,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 1020 transitions, 11334 flow [2022-11-18 19:55:25,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 19:55:25,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-18 19:55:25,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3576 transitions. [2022-11-18 19:55:25,804 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6008064516129032 [2022-11-18 19:55:25,805 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3576 transitions. [2022-11-18 19:55:25,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3576 transitions. [2022-11-18 19:55:25,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:25,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3576 transitions. [2022-11-18 19:55:25,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 149.0) internal successors, (3576), 24 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:25,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 248.0) internal successors, (6200), 25 states have internal predecessors, (6200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:25,835 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 248.0) internal successors, (6200), 25 states have internal predecessors, (6200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:25,835 INFO L175 Difference]: Start difference. First operand has 355 places, 774 transitions, 7291 flow. Second operand 24 states and 3576 transitions. [2022-11-18 19:55:25,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 1020 transitions, 11334 flow [2022-11-18 19:55:26,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 1020 transitions, 11240 flow, removed 45 selfloop flow, removed 2 redundant places. [2022-11-18 19:55:26,083 INFO L231 Difference]: Finished difference. Result has 381 places, 805 transitions, 7958 flow [2022-11-18 19:55:26,084 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=7205, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=774, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=7958, PETRI_PLACES=381, PETRI_TRANSITIONS=805} [2022-11-18 19:55:26,085 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 130 predicate places. [2022-11-18 19:55:26,086 INFO L495 AbstractCegarLoop]: Abstraction has has 381 places, 805 transitions, 7958 flow [2022-11-18 19:55:26,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 140.84615384615384) internal successors, (1831), 13 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:26,087 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:26,087 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:55:26,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:55:26,087 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:55:26,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:26,088 INFO L85 PathProgramCache]: Analyzing trace with hash 560525299, now seen corresponding path program 3 times [2022-11-18 19:55:26,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:26,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429113072] [2022-11-18 19:55:26,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:26,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:27,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:27,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:27,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429113072] [2022-11-18 19:55:27,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429113072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:27,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:27,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:55:27,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113101002] [2022-11-18 19:55:27,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:27,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:55:27,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:27,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:55:27,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:55:27,422 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-18 19:55:27,423 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 805 transitions, 7958 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:27,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:27,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-18 19:55:27,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:32,090 INFO L130 PetriNetUnfolder]: 3030/10015 cut-off events. [2022-11-18 19:55:32,091 INFO L131 PetriNetUnfolder]: For 39458/39705 co-relation queries the response was YES. [2022-11-18 19:55:32,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39795 conditions, 10015 events. 3030/10015 cut-off events. For 39458/39705 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 95866 event pairs, 591 based on Foata normal form. 95/9965 useless extension candidates. Maximal degree in co-relation 39718. Up to 3045 conditions per place. [2022-11-18 19:55:32,209 INFO L137 encePairwiseOnDemand]: 216/248 looper letters, 817 selfloop transitions, 313 changer transitions 3/1267 dead transitions. [2022-11-18 19:55:32,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 1267 transitions, 14828 flow [2022-11-18 19:55:32,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:55:32,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 19:55:32,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3229 transitions. [2022-11-18 19:55:32,216 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6200076804915514 [2022-11-18 19:55:32,216 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3229 transitions. [2022-11-18 19:55:32,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3229 transitions. [2022-11-18 19:55:32,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:32,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3229 transitions. [2022-11-18 19:55:32,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 153.76190476190476) internal successors, (3229), 21 states have internal predecessors, (3229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:32,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 248.0) internal successors, (5456), 22 states have internal predecessors, (5456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:32,232 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 248.0) internal successors, (5456), 22 states have internal predecessors, (5456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:32,232 INFO L175 Difference]: Start difference. First operand has 381 places, 805 transitions, 7958 flow. Second operand 21 states and 3229 transitions. [2022-11-18 19:55:32,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 1267 transitions, 14828 flow [2022-11-18 19:55:32,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 1267 transitions, 14670 flow, removed 14 selfloop flow, removed 12 redundant places. [2022-11-18 19:55:32,610 INFO L231 Difference]: Finished difference. Result has 403 places, 947 transitions, 11154 flow [2022-11-18 19:55:32,612 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=7870, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=805, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=11154, PETRI_PLACES=403, PETRI_TRANSITIONS=947} [2022-11-18 19:55:32,613 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 152 predicate places. [2022-11-18 19:55:32,613 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 947 transitions, 11154 flow [2022-11-18 19:55:32,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:32,614 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:32,615 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:55:32,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 19:55:32,615 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:55:32,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:32,616 INFO L85 PathProgramCache]: Analyzing trace with hash -400447731, now seen corresponding path program 4 times [2022-11-18 19:55:32,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:32,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820189512] [2022-11-18 19:55:32,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:32,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:34,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:34,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:34,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820189512] [2022-11-18 19:55:34,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820189512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:34,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:34,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:55:34,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650527413] [2022-11-18 19:55:34,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:34,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:55:34,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:34,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:55:34,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:55:34,071 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-18 19:55:34,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 947 transitions, 11154 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:34,078 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:34,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-18 19:55:34,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:41,343 INFO L130 PetriNetUnfolder]: 4378/14508 cut-off events. [2022-11-18 19:55:41,343 INFO L131 PetriNetUnfolder]: For 70001/70465 co-relation queries the response was YES. [2022-11-18 19:55:41,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60344 conditions, 14508 events. 4378/14508 cut-off events. For 70001/70465 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 153497 event pairs, 656 based on Foata normal form. 187/14508 useless extension candidates. Maximal degree in co-relation 60253. Up to 2790 conditions per place. [2022-11-18 19:55:41,563 INFO L137 encePairwiseOnDemand]: 211/248 looper letters, 939 selfloop transitions, 545 changer transitions 6/1624 dead transitions. [2022-11-18 19:55:41,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 1624 transitions, 21318 flow [2022-11-18 19:55:41,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 19:55:41,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 19:55:41,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4368 transitions. [2022-11-18 19:55:41,578 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6290322580645161 [2022-11-18 19:55:41,579 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4368 transitions. [2022-11-18 19:55:41,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4368 transitions. [2022-11-18 19:55:41,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:41,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4368 transitions. [2022-11-18 19:55:41,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 156.0) internal successors, (4368), 28 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:41,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 248.0) internal successors, (7192), 29 states have internal predecessors, (7192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:41,603 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 248.0) internal successors, (7192), 29 states have internal predecessors, (7192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:41,604 INFO L175 Difference]: Start difference. First operand has 403 places, 947 transitions, 11154 flow. Second operand 28 states and 4368 transitions. [2022-11-18 19:55:41,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 1624 transitions, 21318 flow [2022-11-18 19:55:42,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 1624 transitions, 21206 flow, removed 54 selfloop flow, removed 2 redundant places. [2022-11-18 19:55:42,240 INFO L231 Difference]: Finished difference. Result has 439 places, 1116 transitions, 16230 flow [2022-11-18 19:55:42,242 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=11078, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=947, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=381, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=16230, PETRI_PLACES=439, PETRI_TRANSITIONS=1116} [2022-11-18 19:55:42,242 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 188 predicate places. [2022-11-18 19:55:42,242 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 1116 transitions, 16230 flow [2022-11-18 19:55:42,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:42,243 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:42,244 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:55:42,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 19:55:42,244 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:55:42,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:42,245 INFO L85 PathProgramCache]: Analyzing trace with hash -146302761, now seen corresponding path program 5 times [2022-11-18 19:55:42,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:42,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670343525] [2022-11-18 19:55:42,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:42,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:43,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:43,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:43,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670343525] [2022-11-18 19:55:43,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670343525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:43,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:43,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:55:43,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497108141] [2022-11-18 19:55:43,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:43,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:55:43,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:43,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:55:43,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:55:43,599 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-18 19:55:43,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 1116 transitions, 16230 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:43,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:43,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-18 19:55:43,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:55:54,144 INFO L130 PetriNetUnfolder]: 5964/19988 cut-off events. [2022-11-18 19:55:54,318 INFO L131 PetriNetUnfolder]: For 122765/123409 co-relation queries the response was YES. [2022-11-18 19:55:54,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87127 conditions, 19988 events. 5964/19988 cut-off events. For 122765/123409 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 227850 event pairs, 974 based on Foata normal form. 250/19990 useless extension candidates. Maximal degree in co-relation 87021. Up to 4448 conditions per place. [2022-11-18 19:55:54,644 INFO L137 encePairwiseOnDemand]: 211/248 looper letters, 939 selfloop transitions, 700 changer transitions 7/1780 dead transitions. [2022-11-18 19:55:54,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 1780 transitions, 27300 flow [2022-11-18 19:55:54,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 19:55:54,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 19:55:54,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4651 transitions. [2022-11-18 19:55:54,652 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6251344086021505 [2022-11-18 19:55:54,652 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 4651 transitions. [2022-11-18 19:55:54,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 4651 transitions. [2022-11-18 19:55:54,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:55:54,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 4651 transitions. [2022-11-18 19:55:54,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 155.03333333333333) internal successors, (4651), 30 states have internal predecessors, (4651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:54,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 248.0) internal successors, (7688), 31 states have internal predecessors, (7688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:54,678 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 248.0) internal successors, (7688), 31 states have internal predecessors, (7688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:54,679 INFO L175 Difference]: Start difference. First operand has 439 places, 1116 transitions, 16230 flow. Second operand 30 states and 4651 transitions. [2022-11-18 19:55:54,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 1780 transitions, 27300 flow [2022-11-18 19:55:56,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 1780 transitions, 27063 flow, removed 54 selfloop flow, removed 15 redundant places. [2022-11-18 19:55:56,120 INFO L231 Difference]: Finished difference. Result has 470 places, 1310 transitions, 22846 flow [2022-11-18 19:55:56,121 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=16033, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=506, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=22846, PETRI_PLACES=470, PETRI_TRANSITIONS=1310} [2022-11-18 19:55:56,121 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 219 predicate places. [2022-11-18 19:55:56,121 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 1310 transitions, 22846 flow [2022-11-18 19:55:56,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:56,123 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:55:56,123 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] [2022-11-18 19:55:56,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 19:55:56,123 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:55:56,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:56,124 INFO L85 PathProgramCache]: Analyzing trace with hash -680722107, now seen corresponding path program 6 times [2022-11-18 19:55:56,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:56,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219963007] [2022-11-18 19:55:56,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:56,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:57,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:57,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:57,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219963007] [2022-11-18 19:55:57,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219963007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:57,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:57,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:55:57,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438685920] [2022-11-18 19:55:57,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:57,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:55:57,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:57,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:55:57,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:55:57,404 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-18 19:55:57,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 1310 transitions, 22846 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:57,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:57,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-18 19:55:57,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:56:10,455 INFO L130 PetriNetUnfolder]: 6566/21941 cut-off events. [2022-11-18 19:56:10,456 INFO L131 PetriNetUnfolder]: For 177131/177803 co-relation queries the response was YES. [2022-11-18 19:56:10,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102076 conditions, 21941 events. 6566/21941 cut-off events. For 177131/177803 co-relation queries the response was YES. Maximal size of possible extension queue 714. Compared 255284 event pairs, 1095 based on Foata normal form. 236/21901 useless extension candidates. Maximal degree in co-relation 101953. Up to 5488 conditions per place. [2022-11-18 19:56:10,880 INFO L137 encePairwiseOnDemand]: 211/248 looper letters, 1076 selfloop transitions, 724 changer transitions 5/1939 dead transitions. [2022-11-18 19:56:10,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 1939 transitions, 33856 flow [2022-11-18 19:56:10,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-18 19:56:10,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-11-18 19:56:10,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4208 transitions. [2022-11-18 19:56:10,887 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6284348864994026 [2022-11-18 19:56:10,887 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4208 transitions. [2022-11-18 19:56:10,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4208 transitions. [2022-11-18 19:56:10,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:56:10,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4208 transitions. [2022-11-18 19:56:10,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 155.85185185185185) internal successors, (4208), 27 states have internal predecessors, (4208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:56:10,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 248.0) internal successors, (6944), 28 states have internal predecessors, (6944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:56:10,904 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 248.0) internal successors, (6944), 28 states have internal predecessors, (6944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:56:10,905 INFO L175 Difference]: Start difference. First operand has 470 places, 1310 transitions, 22846 flow. Second operand 27 states and 4208 transitions. [2022-11-18 19:56:10,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 1939 transitions, 33856 flow [2022-11-18 19:56:13,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 1939 transitions, 33745 flow, removed 32 selfloop flow, removed 10 redundant places. [2022-11-18 19:56:13,786 INFO L231 Difference]: Finished difference. Result has 496 places, 1433 transitions, 28422 flow [2022-11-18 19:56:13,787 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=22761, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=601, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=604, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=28422, PETRI_PLACES=496, PETRI_TRANSITIONS=1433} [2022-11-18 19:56:13,788 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 245 predicate places. [2022-11-18 19:56:13,788 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 1433 transitions, 28422 flow [2022-11-18 19:56:13,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:56:13,788 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:56:13,788 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:56:13,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 19:56:13,789 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-18 19:56:13,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:13,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1264847025, now seen corresponding path program 7 times [2022-11-18 19:56:13,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:13,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203646607] [2022-11-18 19:56:13,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:13,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:56:15,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:56:15,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:56:15,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203646607] [2022-11-18 19:56:15,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203646607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:56:15,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:56:15,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:56:15,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252939701] [2022-11-18 19:56:15,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:56:15,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:56:15,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:56:15,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:56:15,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:56:15,325 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-18 19:56:15,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 1433 transitions, 28422 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:56:15,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:56:15,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-18 19:56:15,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand