./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 38b53e6a 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_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/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_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R --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-38b53e6 [2022-11-25 17:06:56,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:06:56,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:06:56,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:06:56,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:06:56,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:06:56,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:06:56,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:06:56,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:06:56,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:06:56,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:06:56,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:06:56,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:06:56,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:06:56,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:06:56,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:06:56,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:06:56,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:06:56,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:06:56,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:06:56,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:06:56,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:06:56,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:06:56,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:06:56,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:06:56,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:06:56,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:06:56,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:06:56,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:06:56,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:06:56,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:06:56,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:06:56,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:06:56,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:06:56,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:06:56,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:06:56,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:06:56,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:06:56,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:06:56,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:06:56,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:06:56,315 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 17:06:56,337 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:06:56,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:06:56,338 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:06:56,338 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:06:56,339 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:06:56,339 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:06:56,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:06:56,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:06:56,340 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:06:56,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:06:56,341 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:06:56,341 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:06:56,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:06:56,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:06:56,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:06:56,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:06:56,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:06:56,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:06:56,342 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 17:06:56,342 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:06:56,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:06:56,343 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:06:56,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:06:56,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:06:56,343 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:06:56,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:06:56,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:06:56,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:06:56,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:06:56,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:06:56,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:06:56,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:06:56,345 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:06:56,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:06:56,345 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:06:56,346 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:06:56,346 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2022-11-25 17:06:56,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:06:56,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:06:56,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:06:56,697 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:06:56,697 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:06:56,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2022-11-25 17:06:59,808 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:07:00,264 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:07:00,265 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2022-11-25 17:07:00,288 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/data/b8a60fd71/fddda54459f24c3195f64ca43ec85017/FLAGffdde6380 [2022-11-25 17:07:00,311 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/data/b8a60fd71/fddda54459f24c3195f64ca43ec85017 [2022-11-25 17:07:00,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:07:00,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:07:00,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:07:00,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:07:00,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:07:00,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:07:00" (1/1) ... [2022-11-25 17:07:00,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d115d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:00, skipping insertion in model container [2022-11-25 17:07:00,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:07:00" (1/1) ... [2022-11-25 17:07:00,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:07:00,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:07:01,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:07:01,308 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:07:01,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:07:01,531 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:07:01,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:01 WrapperNode [2022-11-25 17:07:01,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:07:01,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:07:01,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:07:01,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:07:01,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:01" (1/1) ... [2022-11-25 17:07:01,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:01" (1/1) ... [2022-11-25 17:07:01,652 INFO L138 Inliner]: procedures = 368, calls = 28, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 232 [2022-11-25 17:07:01,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:07:01,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:07:01,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:07:01,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:07:01,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:01" (1/1) ... [2022-11-25 17:07:01,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:01" (1/1) ... [2022-11-25 17:07:01,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:01" (1/1) ... [2022-11-25 17:07:01,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:01" (1/1) ... [2022-11-25 17:07:01,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:01" (1/1) ... [2022-11-25 17:07:01,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:01" (1/1) ... [2022-11-25 17:07:01,735 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:01" (1/1) ... [2022-11-25 17:07:01,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:01" (1/1) ... [2022-11-25 17:07:01,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:07:01,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:07:01,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:07:01,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:07:01,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:01" (1/1) ... [2022-11-25 17:07:01,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:07:01,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:07:01,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:07:01,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:07:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:07:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:07:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:07:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:07:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:07:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 17:07:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:07:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:07:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:07:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 17:07:01,877 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 17:07:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:07:01,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:07:01,881 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:07:02,060 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:07:02,062 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:07:02,869 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:07:02,896 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:07:02,896 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 17:07:02,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:07:02 BoogieIcfgContainer [2022-11-25 17:07:02,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:07:02,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:07:02,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:07:02,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:07:02,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:07:00" (1/3) ... [2022-11-25 17:07:02,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aab5cbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:07:02, skipping insertion in model container [2022-11-25 17:07:02,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:01" (2/3) ... [2022-11-25 17:07:02,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aab5cbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:07:02, skipping insertion in model container [2022-11-25 17:07:02,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:07:02" (3/3) ... [2022-11-25 17:07:02,919 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2022-11-25 17:07:02,935 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:07:02,949 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:07:02,949 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-25 17:07:02,950 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:07:03,129 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:07:03,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 267 places, 269 transitions, 543 flow [2022-11-25 17:07:03,363 INFO L130 PetriNetUnfolder]: 6/268 cut-off events. [2022-11-25 17:07:03,363 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:07:03,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 268 events. 6/268 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 428 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 200. Up to 2 conditions per place. [2022-11-25 17:07:03,381 INFO L82 GeneralOperation]: Start removeDead. Operand has 267 places, 269 transitions, 543 flow [2022-11-25 17:07:03,395 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 266 places, 268 transitions, 539 flow [2022-11-25 17:07:03,399 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:07:03,415 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 266 places, 268 transitions, 539 flow [2022-11-25 17:07:03,418 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 266 places, 268 transitions, 539 flow [2022-11-25 17:07:03,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 266 places, 268 transitions, 539 flow [2022-11-25 17:07:03,510 INFO L130 PetriNetUnfolder]: 6/268 cut-off events. [2022-11-25 17:07:03,512 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:07:03,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 268 events. 6/268 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 428 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 200. Up to 2 conditions per place. [2022-11-25 17:07:03,531 INFO L119 LiptonReduction]: Number of co-enabled transitions 19550 [2022-11-25 17:07:45,006 WARN L233 SmtUtils]: Spent 5.82s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:07:57,569 WARN L233 SmtUtils]: Spent 8.43s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:08:05,940 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:08:09,311 INFO L134 LiptonReduction]: Checked pairs total: 108862 [2022-11-25 17:08:09,311 INFO L136 LiptonReduction]: Total number of compositions: 163 [2022-11-25 17:08:09,330 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:08:09,336 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;@1ca90ba6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:08:09,337 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-25 17:08:09,340 INFO L130 PetriNetUnfolder]: 1/3 cut-off events. [2022-11-25 17:08:09,341 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:08:09,341 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:08:09,342 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 17:08:09,343 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)] === [2022-11-25 17:08:09,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:09,349 INFO L85 PathProgramCache]: Analyzing trace with hash 27040, now seen corresponding path program 1 times [2022-11-25 17:08:09,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:09,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961507198] [2022-11-25 17:08:09,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:09,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:09,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:08:09,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:09,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961507198] [2022-11-25 17:08:09,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961507198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:09,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:09,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:08:09,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514668074] [2022-11-25 17:08:09,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:09,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:08:09,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:09,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:08:09,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:08:09,598 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 432 [2022-11-25 17:08:09,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 121 transitions, 245 flow. Second operand has 2 states, 2 states have (on average 266.0) internal successors, (532), 2 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:09,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:08:09,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 432 [2022-11-25 17:08:09,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:08:10,113 INFO L130 PetriNetUnfolder]: 359/1627 cut-off events. [2022-11-25 17:08:10,113 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:08:10,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2350 conditions, 1627 events. 359/1627 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 10341 event pairs, 320 based on Foata normal form. 0/1544 useless extension candidates. Maximal degree in co-relation 2337. Up to 719 conditions per place. [2022-11-25 17:08:10,125 INFO L137 encePairwiseOnDemand]: 429/432 looper letters, 42 selfloop transitions, 0 changer transitions 0/118 dead transitions. [2022-11-25 17:08:10,126 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 118 transitions, 323 flow [2022-11-25 17:08:10,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:08:10,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:08:10,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 575 transitions. [2022-11-25 17:08:10,155 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6655092592592593 [2022-11-25 17:08:10,156 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 575 transitions. [2022-11-25 17:08:10,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 575 transitions. [2022-11-25 17:08:10,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:08:10,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 575 transitions. [2022-11-25 17:08:10,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 287.5) internal successors, (575), 2 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:10,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 432.0) internal successors, (1296), 3 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:10,184 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 432.0) internal successors, (1296), 3 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:10,186 INFO L175 Difference]: Start difference. First operand has 122 places, 121 transitions, 245 flow. Second operand 2 states and 575 transitions. [2022-11-25 17:08:10,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 118 transitions, 323 flow [2022-11-25 17:08:10,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 118 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:08:10,196 INFO L231 Difference]: Finished difference. Result has 119 places, 118 transitions, 238 flow [2022-11-25 17:08:10,199 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=238, PETRI_PLACES=119, PETRI_TRANSITIONS=118} [2022-11-25 17:08:10,205 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, -3 predicate places. [2022-11-25 17:08:10,205 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 118 transitions, 238 flow [2022-11-25 17:08:10,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 266.0) internal successors, (532), 2 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:10,206 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:08:10,206 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:10,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:08:10,208 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 17:08:10,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:10,221 INFO L85 PathProgramCache]: Analyzing trace with hash 61819560, now seen corresponding path program 1 times [2022-11-25 17:08:10,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:10,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527705788] [2022-11-25 17:08:10,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:10,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:08:10,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:10,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527705788] [2022-11-25 17:08:10,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527705788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:10,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:10,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:08:10,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709175312] [2022-11-25 17:08:10,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:10,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:08:10,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:10,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:08:10,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:08:10,531 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 432 [2022-11-25 17:08:10,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 118 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 259.3333333333333) internal successors, (778), 3 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:10,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:08:10,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 432 [2022-11-25 17:08:10,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:08:11,497 INFO L130 PetriNetUnfolder]: 682/3041 cut-off events. [2022-11-25 17:08:11,497 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:08:11,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4411 conditions, 3041 events. 682/3041 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 20461 event pairs, 488 based on Foata normal form. 0/2897 useless extension candidates. Maximal degree in co-relation 4408. Up to 719 conditions per place. [2022-11-25 17:08:11,516 INFO L137 encePairwiseOnDemand]: 426/432 looper letters, 75 selfloop transitions, 4 changer transitions 0/155 dead transitions. [2022-11-25 17:08:11,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 155 transitions, 470 flow [2022-11-25 17:08:11,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:08:11,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:08:11,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 852 transitions. [2022-11-25 17:08:11,520 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6574074074074074 [2022-11-25 17:08:11,520 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 852 transitions. [2022-11-25 17:08:11,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 852 transitions. [2022-11-25 17:08:11,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:08:11,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 852 transitions. [2022-11-25 17:08:11,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 284.0) internal successors, (852), 3 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) [2022-11-25 17:08:11,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 432.0) internal successors, (1728), 4 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:11,529 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 432.0) internal successors, (1728), 4 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:11,529 INFO L175 Difference]: Start difference. First operand has 119 places, 118 transitions, 238 flow. Second operand 3 states and 852 transitions. [2022-11-25 17:08:11,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 155 transitions, 470 flow [2022-11-25 17:08:11,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 155 transitions, 470 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:08:11,534 INFO L231 Difference]: Finished difference. Result has 122 places, 120 transitions, 262 flow [2022-11-25 17:08:11,535 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=122, PETRI_TRANSITIONS=120} [2022-11-25 17:08:11,536 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 0 predicate places. [2022-11-25 17:08:11,536 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 120 transitions, 262 flow [2022-11-25 17:08:11,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.3333333333333) internal successors, (778), 3 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:11,537 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:08:11,537 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:11,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:08:11,538 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 17:08:11,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:11,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1130303425, now seen corresponding path program 1 times [2022-11-25 17:08:11,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:11,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268755728] [2022-11-25 17:08:11,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:11,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:11,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:08:11,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:11,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268755728] [2022-11-25 17:08:11,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268755728] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:08:11,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812827680] [2022-11-25 17:08:11,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:11,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:11,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:11,715 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:11,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:08:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:11,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:08:11,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:11,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:08:11,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:08:11,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:08:11,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812827680] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:08:11,978 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:08:11,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-25 17:08:11,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108598586] [2022-11-25 17:08:11,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:08:11,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:08:11,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:11,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:08:11,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:08:12,315 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 432 [2022-11-25 17:08:12,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 120 transitions, 262 flow. Second operand has 7 states, 7 states have (on average 256.85714285714283) internal successors, (1798), 7 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:12,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:08:12,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 432 [2022-11-25 17:08:12,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:08:14,821 INFO L130 PetriNetUnfolder]: 1345/5882 cut-off events. [2022-11-25 17:08:14,821 INFO L131 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2022-11-25 17:08:14,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8710 conditions, 5882 events. 1345/5882 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 40802 event pairs, 32 based on Foata normal form. 51/5760 useless extension candidates. Maximal degree in co-relation 8705. Up to 664 conditions per place. [2022-11-25 17:08:14,915 INFO L137 encePairwiseOnDemand]: 425/432 looper letters, 161 selfloop transitions, 11 changer transitions 0/248 dead transitions. [2022-11-25 17:08:14,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 248 transitions, 872 flow [2022-11-25 17:08:14,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:08:14,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:08:14,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1708 transitions. [2022-11-25 17:08:14,921 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6589506172839507 [2022-11-25 17:08:14,921 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1708 transitions. [2022-11-25 17:08:14,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1708 transitions. [2022-11-25 17:08:14,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:08:14,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1708 transitions. [2022-11-25 17:08:14,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 284.6666666666667) internal successors, (1708), 6 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:14,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:14,937 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:14,938 INFO L175 Difference]: Start difference. First operand has 122 places, 120 transitions, 262 flow. Second operand 6 states and 1708 transitions. [2022-11-25 17:08:14,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 248 transitions, 872 flow [2022-11-25 17:08:14,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 248 transitions, 868 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:08:14,944 INFO L231 Difference]: Finished difference. Result has 130 places, 126 transitions, 336 flow [2022-11-25 17:08:14,945 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=336, PETRI_PLACES=130, PETRI_TRANSITIONS=126} [2022-11-25 17:08:14,946 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 8 predicate places. [2022-11-25 17:08:14,946 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 126 transitions, 336 flow [2022-11-25 17:08:14,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 256.85714285714283) internal successors, (1798), 7 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:14,948 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:08:14,948 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:14,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:15,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:15,158 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 17:08:15,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:15,159 INFO L85 PathProgramCache]: Analyzing trace with hash -2051573656, now seen corresponding path program 2 times [2022-11-25 17:08:15,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:15,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142950274] [2022-11-25 17:08:15,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:15,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:15,597 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:08:15,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:15,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142950274] [2022-11-25 17:08:15,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142950274] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:08:15,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497776809] [2022-11-25 17:08:15,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:08:15,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:15,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:15,608 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:15,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:08:15,826 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 17:08:15,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:08:15,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-25 17:08:15,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:15,895 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 [2022-11-25 17:08:15,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:08:15,947 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 [2022-11-25 17:08:15,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:08:16,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:08:16,003 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:08:16,004 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 [2022-11-25 17:08:16,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:08:16,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:08:16,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:08:16,082 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:08:16,082 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 [2022-11-25 17:08:16,131 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 17:08:16,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:08:16,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497776809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:16,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:08:16,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 12 [2022-11-25 17:08:16,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075782121] [2022-11-25 17:08:16,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:16,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:08:16,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:16,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:08:16,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:08:16,995 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 432 [2022-11-25 17:08:16,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 126 transitions, 336 flow. Second operand has 7 states, 7 states have (on average 190.71428571428572) internal successors, (1335), 7 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:16,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:08:16,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 432 [2022-11-25 17:08:16,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:08:22,446 INFO L130 PetriNetUnfolder]: 8367/19287 cut-off events. [2022-11-25 17:08:22,446 INFO L131 PetriNetUnfolder]: For 660/660 co-relation queries the response was YES. [2022-11-25 17:08:22,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36991 conditions, 19287 events. 8367/19287 cut-off events. For 660/660 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 123724 event pairs, 6820 based on Foata normal form. 0/18714 useless extension candidates. Maximal degree in co-relation 36983. Up to 15873 conditions per place. [2022-11-25 17:08:22,676 INFO L137 encePairwiseOnDemand]: 401/432 looper letters, 160 selfloop transitions, 102 changer transitions 0/286 dead transitions. [2022-11-25 17:08:22,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 286 transitions, 1180 flow [2022-11-25 17:08:22,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:08:22,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 17:08:22,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1579 transitions. [2022-11-25 17:08:22,683 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5221560846560847 [2022-11-25 17:08:22,683 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1579 transitions. [2022-11-25 17:08:22,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1579 transitions. [2022-11-25 17:08:22,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:08:22,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1579 transitions. [2022-11-25 17:08:22,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 225.57142857142858) internal successors, (1579), 7 states have internal predecessors, (1579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:22,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 432.0) internal successors, (3456), 8 states have internal predecessors, (3456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:22,699 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 432.0) internal successors, (3456), 8 states have internal predecessors, (3456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:22,700 INFO L175 Difference]: Start difference. First operand has 130 places, 126 transitions, 336 flow. Second operand 7 states and 1579 transitions. [2022-11-25 17:08:22,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 286 transitions, 1180 flow [2022-11-25 17:08:22,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 286 transitions, 1164 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-11-25 17:08:22,721 INFO L231 Difference]: Finished difference. Result has 139 places, 226 transitions, 886 flow [2022-11-25 17:08:22,722 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=886, PETRI_PLACES=139, PETRI_TRANSITIONS=226} [2022-11-25 17:08:22,724 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 17 predicate places. [2022-11-25 17:08:22,725 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 226 transitions, 886 flow [2022-11-25 17:08:22,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 190.71428571428572) internal successors, (1335), 7 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:22,727 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:08:22,727 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:22,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:22,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:22,934 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)] === [2022-11-25 17:08:22,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:22,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1592173014, now seen corresponding path program 1 times [2022-11-25 17:08:22,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:22,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042209642] [2022-11-25 17:08:22,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:22,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:23,303 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:08:23,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:23,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042209642] [2022-11-25 17:08:23,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042209642] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:08:23,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632641405] [2022-11-25 17:08:23,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:23,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:23,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:08:23,307 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:08:23,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:08:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:23,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:08:23,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:08:23,672 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:08:23,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:08:23,773 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:08:23,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632641405] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:08:23,773 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:08:23,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-25 17:08:23,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296333428] [2022-11-25 17:08:23,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:08:23,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 17:08:23,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:23,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 17:08:23,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:08:24,356 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 432 [2022-11-25 17:08:24,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 226 transitions, 886 flow. Second operand has 13 states, 13 states have (on average 256.46153846153845) internal successors, (3334), 13 states have internal predecessors, (3334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:24,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:08:24,363 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 432 [2022-11-25 17:08:24,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:08:32,767 INFO L130 PetriNetUnfolder]: 5543/19819 cut-off events. [2022-11-25 17:08:32,767 INFO L131 PetriNetUnfolder]: For 1993/2139 co-relation queries the response was YES. [2022-11-25 17:08:32,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37168 conditions, 19819 events. 5543/19819 cut-off events. For 1993/2139 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 139277 event pairs, 436 based on Foata normal form. 110/19182 useless extension candidates. Maximal degree in co-relation 37155. Up to 3084 conditions per place. [2022-11-25 17:08:32,912 INFO L137 encePairwiseOnDemand]: 425/432 looper letters, 461 selfloop transitions, 23 changer transitions 0/651 dead transitions. [2022-11-25 17:08:32,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 651 transitions, 3110 flow [2022-11-25 17:08:32,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:08:32,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 17:08:32,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3466 transitions. [2022-11-25 17:08:32,924 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6685956790123457 [2022-11-25 17:08:32,924 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3466 transitions. [2022-11-25 17:08:32,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3466 transitions. [2022-11-25 17:08:32,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:08:32,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3466 transitions. [2022-11-25 17:08:32,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 288.8333333333333) internal successors, (3466), 12 states have internal predecessors, (3466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:32,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 432.0) internal successors, (5616), 13 states have internal predecessors, (5616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:32,956 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 432.0) internal successors, (5616), 13 states have internal predecessors, (5616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:32,956 INFO L175 Difference]: Start difference. First operand has 139 places, 226 transitions, 886 flow. Second operand 12 states and 3466 transitions. [2022-11-25 17:08:32,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 651 transitions, 3110 flow [2022-11-25 17:08:32,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 651 transitions, 3110 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:08:32,991 INFO L231 Difference]: Finished difference. Result has 157 places, 239 transitions, 1068 flow [2022-11-25 17:08:32,992 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1068, PETRI_PLACES=157, PETRI_TRANSITIONS=239} [2022-11-25 17:08:32,993 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 35 predicate places. [2022-11-25 17:08:32,993 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 239 transitions, 1068 flow [2022-11-25 17:08:32,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 256.46153846153845) internal successors, (3334), 13 states have internal predecessors, (3334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:32,995 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:08:32,996 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:33,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:08:33,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62203c0-9af2-468e-aefa-3b4d2f53f649/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:08:33,206 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)] === [2022-11-25 17:08:33,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:33,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1623954742, now seen corresponding path program 2 times [2022-11-25 17:08:33,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:33,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952808920] [2022-11-25 17:08:33,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:33,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:34,886 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-25 17:08:34,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:34,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952808920] [2022-11-25 17:08:34,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952808920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:34,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:34,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:08:34,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590748358] [2022-11-25 17:08:34,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:34,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:08:34,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:34,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:08:34,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:08:35,612 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 432 [2022-11-25 17:08:35,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 239 transitions, 1068 flow. Second operand has 6 states, 6 states have (on average 193.16666666666666) internal successors, (1159), 6 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:35,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:08:35,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 432 [2022-11-25 17:08:35,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:08:53,977 INFO L130 PetriNetUnfolder]: 22652/50537 cut-off events. [2022-11-25 17:08:53,977 INFO L131 PetriNetUnfolder]: For 12383/12553 co-relation queries the response was YES. [2022-11-25 17:08:54,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118324 conditions, 50537 events. 22652/50537 cut-off events. For 12383/12553 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 326091 event pairs, 15542 based on Foata normal form. 0/48684 useless extension candidates. Maximal degree in co-relation 118304. Up to 42171 conditions per place. [2022-11-25 17:08:54,357 INFO L137 encePairwiseOnDemand]: 390/432 looper letters, 310 selfloop transitions, 153 changer transitions 0/503 dead transitions. [2022-11-25 17:08:54,357 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 503 transitions, 3036 flow [2022-11-25 17:08:54,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:08:54,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:08:54,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1461 transitions. [2022-11-25 17:08:54,363 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5636574074074074 [2022-11-25 17:08:54,363 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1461 transitions. [2022-11-25 17:08:54,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1461 transitions. [2022-11-25 17:08:54,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:08:54,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1461 transitions. [2022-11-25 17:08:54,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 243.5) internal successors, (1461), 6 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:54,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:54,375 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:54,375 INFO L175 Difference]: Start difference. First operand has 157 places, 239 transitions, 1068 flow. Second operand 6 states and 1461 transitions. [2022-11-25 17:08:54,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 503 transitions, 3036 flow [2022-11-25 17:08:54,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 503 transitions, 2986 flow, removed 7 selfloop flow, removed 3 redundant places. [2022-11-25 17:08:54,430 INFO L231 Difference]: Finished difference. Result has 163 places, 387 transitions, 1924 flow [2022-11-25 17:08:54,431 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=1042, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1924, PETRI_PLACES=163, PETRI_TRANSITIONS=387} [2022-11-25 17:08:54,432 INFO L288 CegarLoopForPetriNet]: 122 programPoint places, 41 predicate places. [2022-11-25 17:08:54,432 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 387 transitions, 1924 flow [2022-11-25 17:08:54,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 193.16666666666666) internal successors, (1159), 6 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:54,433 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:08:54,433 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:08:54,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:08:54,434 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 17:08:54,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:08:54,434 INFO L85 PathProgramCache]: Analyzing trace with hash -659521127, now seen corresponding path program 1 times [2022-11-25 17:08:54,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:08:54,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141035788] [2022-11-25 17:08:54,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:08:54,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:08:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:08:56,283 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-25 17:08:56,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:08:56,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141035788] [2022-11-25 17:08:56,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141035788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:08:56,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:08:56,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:08:56,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143827640] [2022-11-25 17:08:56,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:08:56,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:08:56,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:56,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:08:56,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:08:57,854 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 432 [2022-11-25 17:08:57,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 387 transitions, 1924 flow. Second operand has 9 states, 9 states have (on average 187.88888888888889) internal successors, (1691), 9 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:08:57,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:08:57,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 432 [2022-11-25 17:08:57,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:09:30,876 INFO L130 PetriNetUnfolder]: 46504/104498 cut-off events. [2022-11-25 17:09:30,876 INFO L131 PetriNetUnfolder]: For 55092/55843 co-relation queries the response was YES. [2022-11-25 17:09:31,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 292143 conditions, 104498 events. 46504/104498 cut-off events. For 55092/55843 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 810292 event pairs, 2932 based on Foata normal form. 30/101239 useless extension candidates. Maximal degree in co-relation 292118. Up to 45259 conditions per place. [2022-11-25 17:09:31,653 INFO L137 encePairwiseOnDemand]: 406/432 looper letters, 827 selfloop transitions, 105 changer transitions 1/973 dead transitions. [2022-11-25 17:09:31,653 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 973 transitions, 6503 flow [2022-11-25 17:09:31,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:09:31,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 17:09:31,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2328 transitions. [2022-11-25 17:09:31,667 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5388888888888889 [2022-11-25 17:09:31,668 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2328 transitions. [2022-11-25 17:09:31,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2328 transitions. [2022-11-25 17:09:31,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:09:31,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2328 transitions. [2022-11-25 17:09:31,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 232.8) internal successors, (2328), 10 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:31,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 432.0) internal successors, (4752), 11 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:31,702 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 432.0) internal successors, (4752), 11 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:31,702 INFO L175 Difference]: Start difference. First operand has 163 places, 387 transitions, 1924 flow. Second operand 10 states and 2328 transitions. [2022-11-25 17:09:31,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 973 transitions, 6503 flow