./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:48:35,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:48:35,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:48:35,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:48:35,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:48:35,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:48:35,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:48:35,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:48:35,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:48:35,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:48:35,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:48:35,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:48:35,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:48:35,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:48:35,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:48:35,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:48:35,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:48:35,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:48:35,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:48:35,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:48:35,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:48:35,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:48:35,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:48:35,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:48:35,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:48:35,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:48:35,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:48:35,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:48:35,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:48:35,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:48:35,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:48:35,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:48:35,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:48:35,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:48:35,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:48:35,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:48:35,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:48:35,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:48:35,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:48:35,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:48:35,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:48:35,255 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:48:35,299 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:48:35,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:48:35,300 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:48:35,300 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:48:35,301 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:48:35,301 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:48:35,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:48:35,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:48:35,303 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:48:35,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:48:35,304 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:48:35,305 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:48:35,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:48:35,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:48:35,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:48:35,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:48:35,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:48:35,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:48:35,306 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:48:35,306 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:48:35,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:48:35,307 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:48:35,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:48:35,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:48:35,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:48:35,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:48:35,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:48:35,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:48:35,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:48:35,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:48:35,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:48:35,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:48:35,312 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:48:35,312 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:48:35,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:48:35,313 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_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2022-11-16 11:48:35,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:48:35,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:48:35,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:48:35,667 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:48:35,668 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:48:35,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2022-11-16 11:48:35,752 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/data/3f790be78/93573840ac3e40a78e6a6fce9b13de02/FLAG90b083266 [2022-11-16 11:48:36,491 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:48:36,491 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2022-11-16 11:48:36,511 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/data/3f790be78/93573840ac3e40a78e6a6fce9b13de02/FLAG90b083266 [2022-11-16 11:48:36,705 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/data/3f790be78/93573840ac3e40a78e6a6fce9b13de02 [2022-11-16 11:48:36,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:48:36,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:48:36,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:48:36,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:48:36,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:48:36,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:48:36" (1/1) ... [2022-11-16 11:48:36,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67b526fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:36, skipping insertion in model container [2022-11-16 11:48:36,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:48:36" (1/1) ... [2022-11-16 11:48:36,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:48:36,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:48:37,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:48:37,435 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:48:37,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:48:37,590 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:48:37,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:37 WrapperNode [2022-11-16 11:48:37,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:48:37,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:48:37,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:48:37,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:48:37,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:37" (1/1) ... [2022-11-16 11:48:37,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:37" (1/1) ... [2022-11-16 11:48:37,661 INFO L138 Inliner]: procedures = 369, calls = 33, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 237 [2022-11-16 11:48:37,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:48:37,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:48:37,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:48:37,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:48:37,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:37" (1/1) ... [2022-11-16 11:48:37,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:37" (1/1) ... [2022-11-16 11:48:37,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:37" (1/1) ... [2022-11-16 11:48:37,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:37" (1/1) ... [2022-11-16 11:48:37,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:37" (1/1) ... [2022-11-16 11:48:37,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:37" (1/1) ... [2022-11-16 11:48:37,708 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:37" (1/1) ... [2022-11-16 11:48:37,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:37" (1/1) ... [2022-11-16 11:48:37,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:48:37,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:48:37,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:48:37,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:48:37,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:37" (1/1) ... [2022-11-16 11:48:37,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:48:37,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:48:37,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:48:37,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:48:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:48:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:48:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:48:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:48:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:48:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:48:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:48:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:48:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:48:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:48:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:48:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:48:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:48:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:48:37,830 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:48:38,055 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:48:38,057 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:48:38,837 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:48:38,848 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:48:38,848 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 11:48:38,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:48:38 BoogieIcfgContainer [2022-11-16 11:48:38,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:48:38,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:48:38,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:48:38,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:48:38,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:48:36" (1/3) ... [2022-11-16 11:48:38,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236d9093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:48:38, skipping insertion in model container [2022-11-16 11:48:38,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:37" (2/3) ... [2022-11-16 11:48:38,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236d9093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:48:38, skipping insertion in model container [2022-11-16 11:48:38,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:48:38" (3/3) ... [2022-11-16 11:48:38,861 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2022-11-16 11:48:38,870 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:48:38,885 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:48:38,885 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-16 11:48:38,885 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:48:39,041 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:48:39,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 274 transitions, 553 flow [2022-11-16 11:48:39,290 INFO L130 PetriNetUnfolder]: 6/273 cut-off events. [2022-11-16 11:48:39,293 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:48:39,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 273 events. 6/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 429 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 200. Up to 2 conditions per place. [2022-11-16 11:48:39,313 INFO L82 GeneralOperation]: Start removeDead. Operand has 272 places, 274 transitions, 553 flow [2022-11-16 11:48:39,326 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 271 places, 273 transitions, 549 flow [2022-11-16 11:48:39,346 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:48:39,357 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;@357ee5e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:48:39,358 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-16 11:48:39,396 INFO L130 PetriNetUnfolder]: 3/79 cut-off events. [2022-11-16 11:48:39,396 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:48:39,396 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:39,397 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:39,398 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:48:39,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:39,403 INFO L85 PathProgramCache]: Analyzing trace with hash 121722460, now seen corresponding path program 1 times [2022-11-16 11:48:39,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:39,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343152846] [2022-11-16 11:48:39,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:39,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:40,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:40,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:40,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343152846] [2022-11-16 11:48:40,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343152846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:40,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:40,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:48:40,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389895123] [2022-11-16 11:48:40,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:40,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:48:40,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:40,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:48:40,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:48:40,393 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 274 [2022-11-16 11:48:40,404 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 273 transitions, 549 flow. Second operand has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:40,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:40,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 274 [2022-11-16 11:48:40,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:43,031 INFO L130 PetriNetUnfolder]: 2475/7977 cut-off events. [2022-11-16 11:48:43,031 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:48:43,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12951 conditions, 7977 events. 2475/7977 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 62682 event pairs, 1992 based on Foata normal form. 196/7312 useless extension candidates. Maximal degree in co-relation 12850. Up to 4684 conditions per place. [2022-11-16 11:48:43,080 INFO L137 encePairwiseOnDemand]: 234/274 looper letters, 164 selfloop transitions, 107 changer transitions 0/418 dead transitions. [2022-11-16 11:48:43,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 418 transitions, 1381 flow [2022-11-16 11:48:43,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:48:43,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:48:43,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1168 transitions. [2022-11-16 11:48:43,106 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7104622871046229 [2022-11-16 11:48:43,107 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1168 transitions. [2022-11-16 11:48:43,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1168 transitions. [2022-11-16 11:48:43,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:43,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1168 transitions. [2022-11-16 11:48:43,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.66666666666666) internal successors, (1168), 6 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:43,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:43,137 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:43,139 INFO L175 Difference]: Start difference. First operand has 271 places, 273 transitions, 549 flow. Second operand 6 states and 1168 transitions. [2022-11-16 11:48:43,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 418 transitions, 1381 flow [2022-11-16 11:48:43,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 418 transitions, 1380 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:48:43,161 INFO L231 Difference]: Finished difference. Result has 279 places, 370 transitions, 1230 flow [2022-11-16 11:48:43,163 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1230, PETRI_PLACES=279, PETRI_TRANSITIONS=370} [2022-11-16 11:48:43,171 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 8 predicate places. [2022-11-16 11:48:43,171 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 370 transitions, 1230 flow [2022-11-16 11:48:43,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:43,172 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:43,173 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:43,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:48:43,174 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:48:43,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:43,175 INFO L85 PathProgramCache]: Analyzing trace with hash -964891731, now seen corresponding path program 1 times [2022-11-16 11:48:43,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:43,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660746996] [2022-11-16 11:48:43,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:43,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:43,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:43,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:43,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660746996] [2022-11-16 11:48:43,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660746996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:43,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:43,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:48:43,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470856693] [2022-11-16 11:48:43,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:43,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:48:43,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:43,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:48:43,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:48:43,788 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 274 [2022-11-16 11:48:43,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 370 transitions, 1230 flow. Second operand has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:43,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:43,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 274 [2022-11-16 11:48:43,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:46,126 INFO L130 PetriNetUnfolder]: 2669/8641 cut-off events. [2022-11-16 11:48:46,126 INFO L131 PetriNetUnfolder]: For 1695/1697 co-relation queries the response was YES. [2022-11-16 11:48:46,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16551 conditions, 8641 events. 2669/8641 cut-off events. For 1695/1697 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 68835 event pairs, 1874 based on Foata normal form. 0/7773 useless extension candidates. Maximal degree in co-relation 16438. Up to 5042 conditions per place. [2022-11-16 11:48:46,185 INFO L137 encePairwiseOnDemand]: 237/274 looper letters, 263 selfloop transitions, 107 changer transitions 0/518 dead transitions. [2022-11-16 11:48:46,186 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 518 transitions, 2458 flow [2022-11-16 11:48:46,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:48:46,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:48:46,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1160 transitions. [2022-11-16 11:48:46,190 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7055961070559611 [2022-11-16 11:48:46,190 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1160 transitions. [2022-11-16 11:48:46,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1160 transitions. [2022-11-16 11:48:46,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:46,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1160 transitions. [2022-11-16 11:48:46,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 193.33333333333334) internal successors, (1160), 6 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:46,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:46,201 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:46,201 INFO L175 Difference]: Start difference. First operand has 279 places, 370 transitions, 1230 flow. Second operand 6 states and 1160 transitions. [2022-11-16 11:48:46,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 518 transitions, 2458 flow [2022-11-16 11:48:46,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 518 transitions, 2458 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:48:46,228 INFO L231 Difference]: Finished difference. Result has 288 places, 470 transitions, 2110 flow [2022-11-16 11:48:46,228 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1228, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2110, PETRI_PLACES=288, PETRI_TRANSITIONS=470} [2022-11-16 11:48:46,229 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 17 predicate places. [2022-11-16 11:48:46,230 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 470 transitions, 2110 flow [2022-11-16 11:48:46,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:46,231 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:46,231 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:46,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:48:46,232 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:48:46,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:46,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1248115734, now seen corresponding path program 1 times [2022-11-16 11:48:46,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:46,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266285532] [2022-11-16 11:48:46,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:46,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:46,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:46,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:46,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266285532] [2022-11-16 11:48:46,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266285532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:46,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:46,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:48:46,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426349736] [2022-11-16 11:48:46,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:46,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:48:46,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:46,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:48:46,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:48:46,300 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 274 [2022-11-16 11:48:46,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 470 transitions, 2110 flow. Second operand has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:46,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:46,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 274 [2022-11-16 11:48:46,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:47,483 INFO L130 PetriNetUnfolder]: 1071/4168 cut-off events. [2022-11-16 11:48:47,483 INFO L131 PetriNetUnfolder]: For 1160/1172 co-relation queries the response was YES. [2022-11-16 11:48:47,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8533 conditions, 4168 events. 1071/4168 cut-off events. For 1160/1172 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 26550 event pairs, 96 based on Foata normal form. 0/3929 useless extension candidates. Maximal degree in co-relation 8341. Up to 1144 conditions per place. [2022-11-16 11:48:47,533 INFO L137 encePairwiseOnDemand]: 268/274 looper letters, 65 selfloop transitions, 4 changer transitions 0/501 dead transitions. [2022-11-16 11:48:47,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 501 transitions, 2310 flow [2022-11-16 11:48:47,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:48:47,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:48:47,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 770 transitions. [2022-11-16 11:48:47,537 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9367396593673966 [2022-11-16 11:48:47,537 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 770 transitions. [2022-11-16 11:48:47,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 770 transitions. [2022-11-16 11:48:47,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:47,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 770 transitions. [2022-11-16 11:48:47,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:47,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:47,546 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:47,546 INFO L175 Difference]: Start difference. First operand has 288 places, 470 transitions, 2110 flow. Second operand 3 states and 770 transitions. [2022-11-16 11:48:47,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 501 transitions, 2310 flow [2022-11-16 11:48:47,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 501 transitions, 2118 flow, removed 96 selfloop flow, removed 0 redundant places. [2022-11-16 11:48:47,578 INFO L231 Difference]: Finished difference. Result has 291 places, 472 transitions, 1942 flow [2022-11-16 11:48:47,579 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1918, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1942, PETRI_PLACES=291, PETRI_TRANSITIONS=472} [2022-11-16 11:48:47,581 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 20 predicate places. [2022-11-16 11:48:47,582 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 472 transitions, 1942 flow [2022-11-16 11:48:47,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:47,582 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:47,583 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] [2022-11-16 11:48:47,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:48:47,583 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:48:47,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:47,584 INFO L85 PathProgramCache]: Analyzing trace with hash -119349012, now seen corresponding path program 1 times [2022-11-16 11:48:47,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:47,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166581582] [2022-11-16 11:48:47,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:47,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:48,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:48,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166581582] [2022-11-16 11:48:48,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166581582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:48,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:48,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:48:48,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905953627] [2022-11-16 11:48:48,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:48,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:48:48,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:48,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:48:48,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:48:48,134 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 274 [2022-11-16 11:48:48,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 472 transitions, 1942 flow. Second operand has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:48,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:48,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 274 [2022-11-16 11:48:48,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:52,551 INFO L130 PetriNetUnfolder]: 5581/16323 cut-off events. [2022-11-16 11:48:52,551 INFO L131 PetriNetUnfolder]: For 9445/9471 co-relation queries the response was YES. [2022-11-16 11:48:52,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37718 conditions, 16323 events. 5581/16323 cut-off events. For 9445/9471 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 130791 event pairs, 4152 based on Foata normal form. 0/14776 useless extension candidates. Maximal degree in co-relation 37497. Up to 11067 conditions per place. [2022-11-16 11:48:52,687 INFO L137 encePairwiseOnDemand]: 268/274 looper letters, 327 selfloop transitions, 5 changer transitions 0/471 dead transitions. [2022-11-16 11:48:52,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 471 transitions, 2604 flow [2022-11-16 11:48:52,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:48:52,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:48:52,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-16 11:48:52,691 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-11-16 11:48:52,691 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-16 11:48:52,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-16 11:48:52,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:52,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-16 11:48:52,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:52,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:52,707 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:52,708 INFO L175 Difference]: Start difference. First operand has 291 places, 472 transitions, 1942 flow. Second operand 6 states and 959 transitions. [2022-11-16 11:48:52,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 471 transitions, 2604 flow [2022-11-16 11:48:52,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 471 transitions, 2600 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:48:52,736 INFO L231 Difference]: Finished difference. Result has 294 places, 471 transitions, 1946 flow [2022-11-16 11:48:52,737 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1936, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1946, PETRI_PLACES=294, PETRI_TRANSITIONS=471} [2022-11-16 11:48:52,739 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 23 predicate places. [2022-11-16 11:48:52,741 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 471 transitions, 1946 flow [2022-11-16 11:48:52,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:52,742 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:52,743 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:52,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:48:52,743 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:48:52,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:52,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1111224204, now seen corresponding path program 1 times [2022-11-16 11:48:52,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:52,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869809260] [2022-11-16 11:48:52,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:52,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:52,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:52,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:52,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869809260] [2022-11-16 11:48:52,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869809260] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:48:52,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923701036] [2022-11-16 11:48:52,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:52,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:48:52,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:48:52,970 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:48:52,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:48:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:53,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:48:53,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:48:53,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:53,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:48:53,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:53,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923701036] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:48:53,379 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:48:53,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 11:48:53,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131968108] [2022-11-16 11:48:53,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:48:53,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:48:53,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:53,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:48:53,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:48:53,384 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 274 [2022-11-16 11:48:53,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 471 transitions, 1946 flow. Second operand has 10 states, 10 states have (on average 236.0) internal successors, (2360), 10 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:53,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:53,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 274 [2022-11-16 11:48:53,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:54,700 INFO L130 PetriNetUnfolder]: 1077/4215 cut-off events. [2022-11-16 11:48:54,700 INFO L131 PetriNetUnfolder]: For 687/699 co-relation queries the response was YES. [2022-11-16 11:48:54,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8403 conditions, 4215 events. 1077/4215 cut-off events. For 687/699 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 26370 event pairs, 96 based on Foata normal form. 2/3983 useless extension candidates. Maximal degree in co-relation 8135. Up to 906 conditions per place. [2022-11-16 11:48:54,737 INFO L137 encePairwiseOnDemand]: 265/274 looper letters, 68 selfloop transitions, 13 changer transitions 0/512 dead transitions. [2022-11-16 11:48:54,738 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 512 transitions, 2208 flow [2022-11-16 11:48:54,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:48:54,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 11:48:54,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2171 transitions. [2022-11-16 11:48:54,744 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8803730738037308 [2022-11-16 11:48:54,744 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2171 transitions. [2022-11-16 11:48:54,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2171 transitions. [2022-11-16 11:48:54,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:54,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2171 transitions. [2022-11-16 11:48:54,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 241.22222222222223) internal successors, (2171), 9 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:54,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 274.0) internal successors, (2740), 10 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:54,759 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 274.0) internal successors, (2740), 10 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:54,759 INFO L175 Difference]: Start difference. First operand has 294 places, 471 transitions, 1946 flow. Second operand 9 states and 2171 transitions. [2022-11-16 11:48:54,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 512 transitions, 2208 flow [2022-11-16 11:48:54,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 512 transitions, 2182 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:48:54,781 INFO L231 Difference]: Finished difference. Result has 300 places, 478 transitions, 2004 flow [2022-11-16 11:48:54,782 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1936, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2004, PETRI_PLACES=300, PETRI_TRANSITIONS=478} [2022-11-16 11:48:54,782 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 29 predicate places. [2022-11-16 11:48:54,783 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 478 transitions, 2004 flow [2022-11-16 11:48:54,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 236.0) internal successors, (2360), 10 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:54,784 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:54,785 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:54,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:48:54,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:48:54,991 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:48:54,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:54,991 INFO L85 PathProgramCache]: Analyzing trace with hash -227998028, now seen corresponding path program 2 times [2022-11-16 11:48:54,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:54,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708141825] [2022-11-16 11:48:54,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:54,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:55,552 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:55,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:55,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708141825] [2022-11-16 11:48:55,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708141825] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:48:55,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805244208] [2022-11-16 11:48:55,554 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:48:55,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:48:55,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:48:55,555 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:48:55,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:48:55,769 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:48:55,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:48:55,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-16 11:48:55,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:48:55,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 11:48:55,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:48:55,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 11:48:55,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:48:55,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:48:55,982 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:48:55,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-16 11:48:56,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:48:56,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:48:56,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:48:56,057 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:48:56,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-16 11:48:56,111 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-16 11:48:56,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:48:56,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805244208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:56,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:48:56,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-11-16 11:48:56,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89910356] [2022-11-16 11:48:56,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:56,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:48:56,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:56,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:48:56,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:48:56,120 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 274 [2022-11-16 11:48:56,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 478 transitions, 2004 flow. Second operand has 8 states, 8 states have (on average 156.375) internal successors, (1251), 8 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:56,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:56,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 274 [2022-11-16 11:48:56,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:49:02,047 INFO L130 PetriNetUnfolder]: 6495/18399 cut-off events. [2022-11-16 11:49:02,048 INFO L131 PetriNetUnfolder]: For 9018/9101 co-relation queries the response was YES. [2022-11-16 11:49:02,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42166 conditions, 18399 events. 6495/18399 cut-off events. For 9018/9101 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 145857 event pairs, 3567 based on Foata normal form. 0/16800 useless extension candidates. Maximal degree in co-relation 41872. Up to 10958 conditions per place. [2022-11-16 11:49:02,179 INFO L137 encePairwiseOnDemand]: 227/274 looper letters, 563 selfloop transitions, 174 changer transitions 0/900 dead transitions. [2022-11-16 11:49:02,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 900 transitions, 4694 flow [2022-11-16 11:49:02,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:49:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 11:49:02,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1877 transitions. [2022-11-16 11:49:02,185 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7611516626115167 [2022-11-16 11:49:02,185 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1877 transitions. [2022-11-16 11:49:02,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1877 transitions. [2022-11-16 11:49:02,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:49:02,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1877 transitions. [2022-11-16 11:49:02,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 208.55555555555554) internal successors, (1877), 9 states have internal predecessors, (1877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:02,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 274.0) internal successors, (2740), 10 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:02,197 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 274.0) internal successors, (2740), 10 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:02,197 INFO L175 Difference]: Start difference. First operand has 300 places, 478 transitions, 2004 flow. Second operand 9 states and 1877 transitions. [2022-11-16 11:49:02,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 900 transitions, 4694 flow [2022-11-16 11:49:02,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 900 transitions, 4684 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-11-16 11:49:02,233 INFO L231 Difference]: Finished difference. Result has 312 places, 640 transitions, 3474 flow [2022-11-16 11:49:02,234 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1994, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3474, PETRI_PLACES=312, PETRI_TRANSITIONS=640} [2022-11-16 11:49:02,235 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 41 predicate places. [2022-11-16 11:49:02,235 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 640 transitions, 3474 flow [2022-11-16 11:49:02,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 156.375) internal successors, (1251), 8 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:02,236 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:49:02,236 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:02,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:49:02,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:49:02,588 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:49:02,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:02,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1836787897, now seen corresponding path program 1 times [2022-11-16 11:49:02,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:02,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510049260] [2022-11-16 11:49:02,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:02,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:03,197 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:03,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:03,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510049260] [2022-11-16 11:49:03,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510049260] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:49:03,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858124096] [2022-11-16 11:49:03,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:03,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:49:03,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:49:03,200 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:49:03,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:49:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:03,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:49:03,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:49:03,737 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:03,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:49:04,019 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:04,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858124096] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:49:04,021 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:49:04,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-16 11:49:04,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491531670] [2022-11-16 11:49:04,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:49:04,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:49:04,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:04,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:49:04,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:49:04,029 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 274 [2022-11-16 11:49:04,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 640 transitions, 3474 flow. Second operand has 18 states, 18 states have (on average 236.66666666666666) internal successors, (4260), 18 states have internal predecessors, (4260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:04,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:49:04,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 274 [2022-11-16 11:49:04,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:49:06,489 INFO L130 PetriNetUnfolder]: 2011/6923 cut-off events. [2022-11-16 11:49:06,489 INFO L131 PetriNetUnfolder]: For 9112/9206 co-relation queries the response was YES. [2022-11-16 11:49:06,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19730 conditions, 6923 events. 2011/6923 cut-off events. For 9112/9206 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 46999 event pairs, 174 based on Foata normal form. 4/6565 useless extension candidates. Maximal degree in co-relation 19128. Up to 1697 conditions per place. [2022-11-16 11:49:06,539 INFO L137 encePairwiseOnDemand]: 265/274 looper letters, 164 selfloop transitions, 25 changer transitions 0/750 dead transitions. [2022-11-16 11:49:06,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 750 transitions, 4316 flow [2022-11-16 11:49:06,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:49:06,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 11:49:06,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5001 transitions. [2022-11-16 11:49:06,551 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8691345151199166 [2022-11-16 11:49:06,551 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5001 transitions. [2022-11-16 11:49:06,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5001 transitions. [2022-11-16 11:49:06,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:49:06,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5001 transitions. [2022-11-16 11:49:06,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 238.14285714285714) internal successors, (5001), 21 states have internal predecessors, (5001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:06,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:06,578 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:06,578 INFO L175 Difference]: Start difference. First operand has 312 places, 640 transitions, 3474 flow. Second operand 21 states and 5001 transitions. [2022-11-16 11:49:06,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 750 transitions, 4316 flow [2022-11-16 11:49:06,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 750 transitions, 4274 flow, removed 18 selfloop flow, removed 3 redundant places. [2022-11-16 11:49:06,627 INFO L231 Difference]: Finished difference. Result has 334 places, 653 transitions, 3576 flow [2022-11-16 11:49:06,628 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=3432, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=625, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3576, PETRI_PLACES=334, PETRI_TRANSITIONS=653} [2022-11-16 11:49:06,629 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 63 predicate places. [2022-11-16 11:49:06,629 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 653 transitions, 3576 flow [2022-11-16 11:49:06,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 236.66666666666666) internal successors, (4260), 18 states have internal predecessors, (4260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:06,632 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:49:06,632 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:06,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:49:06,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:49:06,839 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:49:06,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:06,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1455200967, now seen corresponding path program 2 times [2022-11-16 11:49:06,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:06,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090590133] [2022-11-16 11:49:06,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:06,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:08,189 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:08,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:08,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090590133] [2022-11-16 11:49:08,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090590133] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:49:08,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401064790] [2022-11-16 11:49:08,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:49:08,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:49:08,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:49:08,195 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:49:08,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 11:49:08,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:49:08,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:49:08,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:49:08,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:49:08,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 11:49:08,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-16 11:49:08,702 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:49:08,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-16 11:49:08,752 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:49:08,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-16 11:49:08,799 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2022-11-16 11:49:08,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:49:08,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401064790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:08,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:49:08,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-16 11:49:08,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252311732] [2022-11-16 11:49:08,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:08,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:49:08,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:08,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:49:08,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:49:08,805 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 274 [2022-11-16 11:49:08,807 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 653 transitions, 3576 flow. Second operand has 6 states, 6 states have (on average 160.16666666666666) internal successors, (961), 6 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:08,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:49:08,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 274 [2022-11-16 11:49:08,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:49:17,491 INFO L130 PetriNetUnfolder]: 6860/20088 cut-off events. [2022-11-16 11:49:17,491 INFO L131 PetriNetUnfolder]: For 33995/34083 co-relation queries the response was YES. [2022-11-16 11:49:17,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63613 conditions, 20088 events. 6860/20088 cut-off events. For 33995/34083 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 163159 event pairs, 3402 based on Foata normal form. 0/18558 useless extension candidates. Maximal degree in co-relation 62947. Up to 12645 conditions per place. [2022-11-16 11:49:17,702 INFO L137 encePairwiseOnDemand]: 231/274 looper letters, 539 selfloop transitions, 170 changer transitions 0/888 dead transitions. [2022-11-16 11:49:17,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 888 transitions, 6820 flow [2022-11-16 11:49:17,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:49:17,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:49:17,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1265 transitions. [2022-11-16 11:49:17,709 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7694647201946472 [2022-11-16 11:49:17,709 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1265 transitions. [2022-11-16 11:49:17,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1265 transitions. [2022-11-16 11:49:17,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:49:17,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1265 transitions. [2022-11-16 11:49:17,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.83333333333334) internal successors, (1265), 6 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:17,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:17,721 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:17,721 INFO L175 Difference]: Start difference. First operand has 334 places, 653 transitions, 3576 flow. Second operand 6 states and 1265 transitions. [2022-11-16 11:49:17,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 888 transitions, 6820 flow [2022-11-16 11:49:18,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 888 transitions, 6794 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-16 11:49:18,224 INFO L231 Difference]: Finished difference. Result has 338 places, 814 transitions, 5964 flow [2022-11-16 11:49:18,225 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=3550, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=653, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=591, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5964, PETRI_PLACES=338, PETRI_TRANSITIONS=814} [2022-11-16 11:49:18,230 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 67 predicate places. [2022-11-16 11:49:18,230 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 814 transitions, 5964 flow [2022-11-16 11:49:18,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.16666666666666) internal successors, (961), 6 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:18,231 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:49:18,232 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:18,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:49:18,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-16 11:49:18,439 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:49:18,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:18,439 INFO L85 PathProgramCache]: Analyzing trace with hash 2064043383, now seen corresponding path program 1 times [2022-11-16 11:49:18,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:18,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846376146] [2022-11-16 11:49:18,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:18,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:19,857 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:19,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:19,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846376146] [2022-11-16 11:49:19,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846376146] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:49:19,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140995784] [2022-11-16 11:49:19,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:19,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:49:19,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:49:19,860 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:49:19,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 11:49:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:20,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 1321 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 11:49:20,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:49:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:21,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:49:22,019 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:22,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140995784] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:49:22,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:49:22,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-16 11:49:22,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991923666] [2022-11-16 11:49:22,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:49:22,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 11:49:22,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:22,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 11:49:22,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:49:22,027 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 274 [2022-11-16 11:49:22,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 814 transitions, 5964 flow. Second operand has 23 states, 23 states have (on average 237.2608695652174) internal successors, (5457), 23 states have internal predecessors, (5457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:22,034 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:49:22,034 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 274 [2022-11-16 11:49:22,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:49:26,712 INFO L130 PetriNetUnfolder]: 2734/9294 cut-off events. [2022-11-16 11:49:26,712 INFO L131 PetriNetUnfolder]: For 21387/23608 co-relation queries the response was YES. [2022-11-16 11:49:26,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30544 conditions, 9294 events. 2734/9294 cut-off events. For 21387/23608 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 66503 event pairs, 230 based on Foata normal form. 3/8883 useless extension candidates. Maximal degree in co-relation 29659. Up to 2463 conditions per place. [2022-11-16 11:49:26,799 INFO L137 encePairwiseOnDemand]: 265/274 looper letters, 252 selfloop transitions, 34 changer transitions 0/976 dead transitions. [2022-11-16 11:49:26,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 976 transitions, 7540 flow [2022-11-16 11:49:26,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 11:49:26,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-16 11:49:26,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7121 transitions. [2022-11-16 11:49:26,821 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.866301703163017 [2022-11-16 11:49:26,821 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 7121 transitions. [2022-11-16 11:49:26,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 7121 transitions. [2022-11-16 11:49:26,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:49:26,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 7121 transitions. [2022-11-16 11:49:26,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 237.36666666666667) internal successors, (7121), 30 states have internal predecessors, (7121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:26,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 274.0) internal successors, (8494), 31 states have internal predecessors, (8494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:26,871 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 274.0) internal successors, (8494), 31 states have internal predecessors, (8494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:26,871 INFO L175 Difference]: Start difference. First operand has 338 places, 814 transitions, 5964 flow. Second operand 30 states and 7121 transitions. [2022-11-16 11:49:26,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 976 transitions, 7540 flow [2022-11-16 11:49:27,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 976 transitions, 6084 flow, removed 728 selfloop flow, removed 0 redundant places. [2022-11-16 11:49:27,026 INFO L231 Difference]: Finished difference. Result has 371 places, 824 transitions, 4930 flow [2022-11-16 11:49:27,028 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=4764, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=814, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=787, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4930, PETRI_PLACES=371, PETRI_TRANSITIONS=824} [2022-11-16 11:49:27,028 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 100 predicate places. [2022-11-16 11:49:27,029 INFO L495 AbstractCegarLoop]: Abstraction has has 371 places, 824 transitions, 4930 flow [2022-11-16 11:49:27,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 237.2608695652174) internal successors, (5457), 23 states have internal predecessors, (5457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:27,031 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:49:27,032 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:27,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:49:27,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9841a3d4-2aa7-438e-8560-eb2cf82378c2/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:49:27,241 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:49:27,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:27,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1082179861, now seen corresponding path program 2 times [2022-11-16 11:49:27,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:27,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122258090] [2022-11-16 11:49:27,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:27,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:30,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2022-11-16 11:49:30,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:30,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122258090] [2022-11-16 11:49:30,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122258090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:30,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:30,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:49:30,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727909718] [2022-11-16 11:49:30,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:30,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:49:30,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:30,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:49:30,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:49:30,725 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 274 [2022-11-16 11:49:30,727 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 824 transitions, 4930 flow. Second operand has 11 states, 11 states have (on average 137.0909090909091) internal successors, (1508), 11 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:30,727 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:49:30,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 274 [2022-11-16 11:49:30,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:49:54,212 INFO L130 PetriNetUnfolder]: 15039/41630 cut-off events. [2022-11-16 11:49:54,212 INFO L131 PetriNetUnfolder]: For 99322/99954 co-relation queries the response was YES. [2022-11-16 11:49:54,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143984 conditions, 41630 events. 15039/41630 cut-off events. For 99322/99954 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 385216 event pairs, 875 based on Foata normal form. 264/38962 useless extension candidates. Maximal degree in co-relation 142942. Up to 13736 conditions per place. [2022-11-16 11:49:54,612 INFO L137 encePairwiseOnDemand]: 218/274 looper letters, 1524 selfloop transitions, 424 changer transitions 0/2115 dead transitions. [2022-11-16 11:49:54,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 2115 transitions, 16816 flow [2022-11-16 11:49:54,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-16 11:49:54,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-16 11:49:54,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 6686 transitions. [2022-11-16 11:49:54,629 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5809871393813 [2022-11-16 11:49:54,630 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 6686 transitions. [2022-11-16 11:49:54,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 6686 transitions. [2022-11-16 11:49:54,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:49:54,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 6686 transitions. [2022-11-16 11:49:54,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 159.1904761904762) internal successors, (6686), 42 states have internal predecessors, (6686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:54,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 274.0) internal successors, (11782), 43 states have internal predecessors, (11782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:54,672 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 274.0) internal successors, (11782), 43 states have internal predecessors, (11782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:54,673 INFO L175 Difference]: Start difference. First operand has 371 places, 824 transitions, 4930 flow. Second operand 42 states and 6686 transitions. [2022-11-16 11:49:54,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 2115 transitions, 16816 flow [2022-11-16 11:49:54,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 2115 transitions, 16768 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-16 11:49:54,919 INFO L231 Difference]: Finished difference. Result has 413 places, 1109 transitions, 8413 flow [2022-11-16 11:49:54,921 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=4882, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=824, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=612, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=8413, PETRI_PLACES=413, PETRI_TRANSITIONS=1109} [2022-11-16 11:49:54,921 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 142 predicate places. [2022-11-16 11:49:54,922 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 1109 transitions, 8413 flow [2022-11-16 11:49:54,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 137.0909090909091) internal successors, (1508), 11 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:54,923 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:49:54,923 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:54,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:49:54,924 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 11:49:54,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:54,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1811982851, now seen corresponding path program 1 times [2022-11-16 11:49:54,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:54,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766315021] [2022-11-16 11:49:54,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:54,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:58,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2022-11-16 11:49:58,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:58,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766315021] [2022-11-16 11:49:58,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766315021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:58,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:58,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:49:58,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554115778] [2022-11-16 11:49:58,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:58,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:49:58,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:58,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:49:58,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:49:58,098 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 274 [2022-11-16 11:49:58,099 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 1109 transitions, 8413 flow. Second operand has 11 states, 11 states have (on average 135.27272727272728) internal successors, (1488), 11 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:58,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:49:58,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 274 [2022-11-16 11:49:58,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand