./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8 --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 406569de44adfe8c1be02a1261bb34c87b6e96e16ab8124ccb5c3636d70e4f02 --- 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-2329fc7 [2022-12-13 13:30:32,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:30:32,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:30:32,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:30:32,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:30:32,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:30:32,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:30:32,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:30:32,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:30:32,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:30:32,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:30:32,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:30:32,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:30:32,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:30:32,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:30:32,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:30:32,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:30:32,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:30:32,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:30:32,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:30:32,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:30:32,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:30:32,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:30:32,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:30:32,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:30:32,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:30:32,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:30:32,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:30:32,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:30:32,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:30:32,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:30:32,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:30:32,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:30:32,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:30:32,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:30:32,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:30:32,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:30:32,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:30:32,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:30:32,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:30:32,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:30:32,241 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 13:30:32,262 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:30:32,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:30:32,262 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:30:32,263 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:30:32,263 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:30:32,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:30:32,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:30:32,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:30:32,269 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:30:32,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:30:32,269 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:30:32,269 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:30:32,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:30:32,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:30:32,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:30:32,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:30:32,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:30:32,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:30:32,271 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 13:30:32,271 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:30:32,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:30:32,271 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:30:32,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:30:32,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:30:32,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:30:32,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:30:32,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:30:32,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:30:32,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:30:32,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:30:32,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:30:32,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:30:32,273 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:30:32,274 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:30:32,274 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:30:32,274 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:30:32,274 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:30:32,274 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_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 406569de44adfe8c1be02a1261bb34c87b6e96e16ab8124ccb5c3636d70e4f02 [2022-12-13 13:30:32,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:30:32,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:30:32,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:30:32,483 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:30:32,483 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:30:32,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i [2022-12-13 13:30:35,091 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:30:35,295 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:30:35,296 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i [2022-12-13 13:30:35,310 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/data/ffb00c93d/d4d895aaf1714cd7827b90de1baa7f05/FLAGffc174d87 [2022-12-13 13:30:35,322 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/data/ffb00c93d/d4d895aaf1714cd7827b90de1baa7f05 [2022-12-13 13:30:35,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:30:35,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:30:35,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:30:35,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:30:35,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:30:35,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:30:35" (1/1) ... [2022-12-13 13:30:35,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33228249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:35, skipping insertion in model container [2022-12-13 13:30:35,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:30:35" (1/1) ... [2022-12-13 13:30:35,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:30:35,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:30:35,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:30:35,781 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:30:35,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:30:35,880 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:30:35,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:35 WrapperNode [2022-12-13 13:30:35,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:30:35,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:30:35,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:30:35,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:30:35,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:35" (1/1) ... [2022-12-13 13:30:35,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:35" (1/1) ... [2022-12-13 13:30:35,931 INFO L138 Inliner]: procedures = 370, calls = 30, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 236 [2022-12-13 13:30:35,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:30:35,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:30:35,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:30:35,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:30:35,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:35" (1/1) ... [2022-12-13 13:30:35,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:35" (1/1) ... [2022-12-13 13:30:35,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:35" (1/1) ... [2022-12-13 13:30:35,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:35" (1/1) ... [2022-12-13 13:30:35,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:35" (1/1) ... [2022-12-13 13:30:35,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:35" (1/1) ... [2022-12-13 13:30:35,962 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:35" (1/1) ... [2022-12-13 13:30:35,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:35" (1/1) ... [2022-12-13 13:30:35,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:30:35,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:30:35,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:30:35,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:30:35,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:35" (1/1) ... [2022-12-13 13:30:35,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:30:35,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:35,993 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:30:35,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:30:36,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:30:36,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 13:30:36,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:30:36,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:30:36,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:30:36,030 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 13:30:36,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 13:30:36,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:30:36,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 13:30:36,030 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 13:30:36,030 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 13:30:36,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:30:36,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:30:36,032 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 13:30:36,158 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:30:36,160 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:30:36,542 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:30:36,548 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:30:36,548 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 13:30:36,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:30:36 BoogieIcfgContainer [2022-12-13 13:30:36,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:30:36,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:30:36,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:30:36,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:30:36,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:30:35" (1/3) ... [2022-12-13 13:30:36,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd9baac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:30:36, skipping insertion in model container [2022-12-13 13:30:36,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:35" (2/3) ... [2022-12-13 13:30:36,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd9baac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:30:36, skipping insertion in model container [2022-12-13 13:30:36,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:30:36" (3/3) ... [2022-12-13 13:30:36,563 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_10-arraylist_rc.i [2022-12-13 13:30:36,569 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:30:36,577 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:30:36,577 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-12-13 13:30:36,577 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:30:36,632 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 13:30:36,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 282 transitions, 569 flow [2022-12-13 13:30:36,721 INFO L130 PetriNetUnfolder]: 6/281 cut-off events. [2022-12-13 13:30:36,721 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:30:36,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 281 events. 6/281 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 392 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 155. Up to 2 conditions per place. [2022-12-13 13:30:36,725 INFO L82 GeneralOperation]: Start removeDead. Operand has 280 places, 282 transitions, 569 flow [2022-12-13 13:30:36,730 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 281 transitions, 565 flow [2022-12-13 13:30:36,733 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:30:36,740 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 279 places, 281 transitions, 565 flow [2022-12-13 13:30:36,742 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 279 places, 281 transitions, 565 flow [2022-12-13 13:30:36,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 279 places, 281 transitions, 565 flow [2022-12-13 13:30:36,778 INFO L130 PetriNetUnfolder]: 6/281 cut-off events. [2022-12-13 13:30:36,778 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:30:36,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 281 events. 6/281 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 392 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 155. Up to 2 conditions per place. [2022-12-13 13:30:36,781 INFO L119 LiptonReduction]: Number of co-enabled transitions 6512 [2022-12-13 13:31:13,554 WARN L233 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:32:18,767 WARN L233 SmtUtils]: Spent 50.41s on a formula simplification. DAG size of input: 227 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:32:44,754 WARN L233 SmtUtils]: Spent 25.98s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:33:41,037 WARN L233 SmtUtils]: Spent 56.28s on a formula simplification. DAG size of input: 227 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:34:07,838 WARN L233 SmtUtils]: Spent 26.80s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:35:45,774 WARN L233 SmtUtils]: Spent 1.63m on a formula simplification that was a NOOP. DAG size: 289 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:36:45,617 WARN L233 SmtUtils]: Spent 59.84s on a formula simplification that was a NOOP. DAG size: 258 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:37:46,460 WARN L233 SmtUtils]: Spent 1.01m on a formula simplification that was a NOOP. DAG size: 289 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:38:34,584 WARN L233 SmtUtils]: Spent 48.12s on a formula simplification that was a NOOP. DAG size: 258 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:39:40,352 WARN L233 SmtUtils]: Spent 1.10m on a formula simplification that was a NOOP. DAG size: 261 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:40:37,953 WARN L233 SmtUtils]: Spent 57.60s on a formula simplification that was a NOOP. DAG size: 253 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:41:17,954 WARN L233 SmtUtils]: Spent 40.00s on a formula simplification that was a NOOP. DAG size: 261 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:41:49,179 WARN L233 SmtUtils]: Spent 31.22s on a formula simplification that was a NOOP. DAG size: 253 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:41:49,182 INFO L134 LiptonReduction]: Checked pairs total: 50053 [2022-12-13 13:41:49,182 INFO L136 LiptonReduction]: Total number of compositions: 246 [2022-12-13 13:41:49,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:41:49,196 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;@4ff8faad, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:41:49,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-12-13 13:41:49,198 INFO L130 PetriNetUnfolder]: 2/5 cut-off events. [2022-12-13 13:41:49,198 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:49,198 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:49,199 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:41:49,199 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 13:41:49,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:49,203 INFO L85 PathProgramCache]: Analyzing trace with hash 923520, now seen corresponding path program 1 times [2022-12-13 13:41:49,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:41:49,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738327662] [2022-12-13 13:41:49,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:49,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:41:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:49,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:41:49,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:41:49,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738327662] [2022-12-13 13:41:49,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738327662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:41:49,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:41:49,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:41:49,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149045443] [2022-12-13 13:41:49,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:41:49,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:41:49,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:41:49,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:41:49,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:41:49,390 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 528 [2022-12-13 13:41:49,392 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 84 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:49,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:41:49,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 528 [2022-12-13 13:41:49,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:41:50,145 INFO L130 PetriNetUnfolder]: 66/287 cut-off events. [2022-12-13 13:41:50,146 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:50,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 287 events. 66/287 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1305 event pairs, 64 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 428. Up to 155 conditions per place. [2022-12-13 13:41:50,148 INFO L137 encePairwiseOnDemand]: 515/528 looper letters, 25 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2022-12-13 13:41:50,148 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 74 transitions, 205 flow [2022-12-13 13:41:50,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:41:50,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:41:50,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 857 transitions. [2022-12-13 13:41:50,160 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5410353535353535 [2022-12-13 13:41:50,161 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 857 transitions. [2022-12-13 13:41:50,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 857 transitions. [2022-12-13 13:41:50,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:41:50,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 857 transitions. [2022-12-13 13:41:50,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 285.6666666666667) internal successors, (857), 3 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:50,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:50,174 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:50,175 INFO L175 Difference]: Start difference. First operand has 85 places, 84 transitions, 171 flow. Second operand 3 states and 857 transitions. [2022-12-13 13:41:50,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 74 transitions, 205 flow [2022-12-13 13:41:50,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 74 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:41:50,179 INFO L231 Difference]: Finished difference. Result has 77 places, 74 transitions, 160 flow [2022-12-13 13:41:50,180 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=77, PETRI_TRANSITIONS=74} [2022-12-13 13:41:50,183 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -8 predicate places. [2022-12-13 13:41:50,183 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 74 transitions, 160 flow [2022-12-13 13:41:50,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:50,183 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:50,183 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:41:50,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:41:50,184 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 13:41:50,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:50,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1938759441, now seen corresponding path program 1 times [2022-12-13 13:41:50,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:41:50,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746888759] [2022-12-13 13:41:50,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:50,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:41:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:50,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:41:50,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:41:50,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746888759] [2022-12-13 13:41:50,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746888759] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:41:50,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631717583] [2022-12-13 13:41:50,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:50,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:41:50,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:41:50,260 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:41:50,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 13:41:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:50,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 13:41:50,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:41:50,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:41:50,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:41:50,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631717583] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:41:50,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:41:50,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-12-13 13:41:50,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931679764] [2022-12-13 13:41:50,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:41:50,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:41:50,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:41:50,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:41:50,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:41:50,395 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 528 [2022-12-13 13:41:50,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:50,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:41:50,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 528 [2022-12-13 13:41:50,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:41:51,013 INFO L130 PetriNetUnfolder]: 66/288 cut-off events. [2022-12-13 13:41:51,013 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:51,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 288 events. 66/288 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1314 event pairs, 64 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 444. Up to 156 conditions per place. [2022-12-13 13:41:51,014 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 26 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2022-12-13 13:41:51,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 75 transitions, 218 flow [2022-12-13 13:41:51,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:41:51,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:41:51,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 847 transitions. [2022-12-13 13:41:51,017 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5347222222222222 [2022-12-13 13:41:51,017 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 847 transitions. [2022-12-13 13:41:51,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 847 transitions. [2022-12-13 13:41:51,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:41:51,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 847 transitions. [2022-12-13 13:41:51,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:51,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:51,021 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:51,021 INFO L175 Difference]: Start difference. First operand has 77 places, 74 transitions, 160 flow. Second operand 3 states and 847 transitions. [2022-12-13 13:41:51,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 75 transitions, 218 flow [2022-12-13 13:41:51,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 214 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 13:41:51,023 INFO L231 Difference]: Finished difference. Result has 79 places, 75 transitions, 168 flow [2022-12-13 13:41:51,023 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=79, PETRI_TRANSITIONS=75} [2022-12-13 13:41:51,023 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -6 predicate places. [2022-12-13 13:41:51,023 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 75 transitions, 168 flow [2022-12-13 13:41:51,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:51,024 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:51,024 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:41:51,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:41:51,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:41:51,226 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 13:41:51,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:51,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1750403137, now seen corresponding path program 1 times [2022-12-13 13:41:51,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:41:51,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366452683] [2022-12-13 13:41:51,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:51,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:41:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:51,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:41:51,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:41:51,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366452683] [2022-12-13 13:41:51,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366452683] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:41:51,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292407016] [2022-12-13 13:41:51,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:51,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:41:51,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:41:51,481 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:41:51,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 13:41:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:51,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:41:51,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:41:51,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:41:51,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:41:51,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:41:51,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292407016] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:41:51,796 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:41:51,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-12-13 13:41:51,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277757345] [2022-12-13 13:41:51,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:41:51,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:41:51,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:41:51,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:41:51,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:41:51,811 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 528 [2022-12-13 13:41:51,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 75 transitions, 168 flow. Second operand has 6 states, 6 states have (on average 273.6666666666667) internal successors, (1642), 6 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:51,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:41:51,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 528 [2022-12-13 13:41:51,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:41:53,116 INFO L130 PetriNetUnfolder]: 66/291 cut-off events. [2022-12-13 13:41:53,116 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 13:41:53,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 291 events. 66/291 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1313 event pairs, 64 based on Foata normal form. 3/271 useless extension candidates. Maximal degree in co-relation 442. Up to 156 conditions per place. [2022-12-13 13:41:53,117 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 26 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2022-12-13 13:41:53,117 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 78 transitions, 242 flow [2022-12-13 13:41:53,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:41:53,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:41:53,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1665 transitions. [2022-12-13 13:41:53,120 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5255681818181818 [2022-12-13 13:41:53,120 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1665 transitions. [2022-12-13 13:41:53,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1665 transitions. [2022-12-13 13:41:53,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:41:53,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1665 transitions. [2022-12-13 13:41:53,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 277.5) internal successors, (1665), 6 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:53,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:53,127 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:53,127 INFO L175 Difference]: Start difference. First operand has 79 places, 75 transitions, 168 flow. Second operand 6 states and 1665 transitions. [2022-12-13 13:41:53,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 78 transitions, 242 flow [2022-12-13 13:41:53,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 78 transitions, 238 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 13:41:53,128 INFO L231 Difference]: Finished difference. Result has 86 places, 78 transitions, 200 flow [2022-12-13 13:41:53,128 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=200, PETRI_PLACES=86, PETRI_TRANSITIONS=78} [2022-12-13 13:41:53,129 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 1 predicate places. [2022-12-13 13:41:53,129 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 78 transitions, 200 flow [2022-12-13 13:41:53,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 273.6666666666667) internal successors, (1642), 6 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:53,130 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:53,130 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:41:53,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 13:41:53,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:41:53,331 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 13:41:53,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:53,331 INFO L85 PathProgramCache]: Analyzing trace with hash 345205258, now seen corresponding path program 2 times [2022-12-13 13:41:53,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:41:53,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676432239] [2022-12-13 13:41:53,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:53,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:41:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:53,595 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 13:41:53,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:41:53,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676432239] [2022-12-13 13:41:53,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676432239] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:41:53,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280365063] [2022-12-13 13:41:53,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:41:53,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:41:53,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:41:53,597 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:41:53,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 13:41:53,792 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 13:41:53,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:41:53,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 13:41:53,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:41:53,825 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 15 treesize of output 11 [2022-12-13 13:41:53,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 13:41:53,858 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:41:53,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 13:41:53,884 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:41:53,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 13:41:53,907 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 13:41:53,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:41:53,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280365063] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:41:53,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:41:53,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2022-12-13 13:41:53,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650907212] [2022-12-13 13:41:53,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:41:53,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:41:53,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:41:53,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:41:53,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:41:54,390 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 528 [2022-12-13 13:41:54,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 78 transitions, 200 flow. Second operand has 6 states, 6 states have (on average 226.0) internal successors, (1356), 6 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:54,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:41:54,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 528 [2022-12-13 13:41:54,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:41:55,416 INFO L130 PetriNetUnfolder]: 445/1505 cut-off events. [2022-12-13 13:41:55,416 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 13:41:55,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2504 conditions, 1505 events. 445/1505 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9490 event pairs, 37 based on Foata normal form. 0/1426 useless extension candidates. Maximal degree in co-relation 2470. Up to 616 conditions per place. [2022-12-13 13:41:55,422 INFO L137 encePairwiseOnDemand]: 506/528 looper letters, 99 selfloop transitions, 69 changer transitions 0/197 dead transitions. [2022-12-13 13:41:55,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 197 transitions, 774 flow [2022-12-13 13:41:55,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:41:55,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:41:55,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1508 transitions. [2022-12-13 13:41:55,425 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.476010101010101 [2022-12-13 13:41:55,425 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1508 transitions. [2022-12-13 13:41:55,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1508 transitions. [2022-12-13 13:41:55,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:41:55,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1508 transitions. [2022-12-13 13:41:55,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 251.33333333333334) internal successors, (1508), 6 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:55,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:55,431 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:55,431 INFO L175 Difference]: Start difference. First operand has 86 places, 78 transitions, 200 flow. Second operand 6 states and 1508 transitions. [2022-12-13 13:41:55,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 197 transitions, 774 flow [2022-12-13 13:41:55,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 197 transitions, 760 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-13 13:41:55,434 INFO L231 Difference]: Finished difference. Result has 95 places, 146 transitions, 640 flow [2022-12-13 13:41:55,435 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=640, PETRI_PLACES=95, PETRI_TRANSITIONS=146} [2022-12-13 13:41:55,435 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 10 predicate places. [2022-12-13 13:41:55,435 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 146 transitions, 640 flow [2022-12-13 13:41:55,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 226.0) internal successors, (1356), 6 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:55,436 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:55,436 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:41:55,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 13:41:55,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-12-13 13:41:55,637 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 13:41:55,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:55,638 INFO L85 PathProgramCache]: Analyzing trace with hash -527662165, now seen corresponding path program 1 times [2022-12-13 13:41:55,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:41:55,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475779532] [2022-12-13 13:41:55,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:55,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:41:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 13:41:55,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:41:55,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475779532] [2022-12-13 13:41:55,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475779532] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:41:55,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638925402] [2022-12-13 13:41:55,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:55,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:41:55,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:41:55,941 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:41:55,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 13:41:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:56,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 13:41:56,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:41:56,311 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:41:56,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:41:56,367 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:41:56,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638925402] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:41:56,367 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:41:56,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2022-12-13 13:41:56,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785234171] [2022-12-13 13:41:56,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:41:56,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 13:41:56,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:41:56,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 13:41:56,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-12-13 13:41:56,535 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 528 [2022-12-13 13:41:56,541 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 146 transitions, 640 flow. Second operand has 14 states, 14 states have (on average 270.7142857142857) internal successors, (3790), 14 states have internal predecessors, (3790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:56,541 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:41:56,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 528 [2022-12-13 13:41:56,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:41:58,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 13:41:59,216 INFO L130 PetriNetUnfolder]: 253/1083 cut-off events. [2022-12-13 13:41:59,216 INFO L131 PetriNetUnfolder]: For 219/242 co-relation queries the response was YES. [2022-12-13 13:41:59,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2070 conditions, 1083 events. 253/1083 cut-off events. For 219/242 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6775 event pairs, 91 based on Foata normal form. 6/1014 useless extension candidates. Maximal degree in co-relation 2014. Up to 358 conditions per place. [2022-12-13 13:41:59,221 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 40 selfloop transitions, 14 changer transitions 0/153 dead transitions. [2022-12-13 13:41:59,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 153 transitions, 788 flow [2022-12-13 13:41:59,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 13:41:59,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 13:41:59,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3811 transitions. [2022-12-13 13:41:59,225 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5155573593073594 [2022-12-13 13:41:59,225 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3811 transitions. [2022-12-13 13:41:59,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3811 transitions. [2022-12-13 13:41:59,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:41:59,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3811 transitions. [2022-12-13 13:41:59,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 272.2142857142857) internal successors, (3811), 14 states have internal predecessors, (3811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:59,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 528.0) internal successors, (7920), 15 states have internal predecessors, (7920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:59,239 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 528.0) internal successors, (7920), 15 states have internal predecessors, (7920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:59,239 INFO L175 Difference]: Start difference. First operand has 95 places, 146 transitions, 640 flow. Second operand 14 states and 3811 transitions. [2022-12-13 13:41:59,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 153 transitions, 788 flow [2022-12-13 13:41:59,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 153 transitions, 788 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:41:59,244 INFO L231 Difference]: Finished difference. Result has 109 places, 153 transitions, 716 flow [2022-12-13 13:41:59,244 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=716, PETRI_PLACES=109, PETRI_TRANSITIONS=153} [2022-12-13 13:41:59,244 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 24 predicate places. [2022-12-13 13:41:59,245 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 153 transitions, 716 flow [2022-12-13 13:41:59,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 270.7142857142857) internal successors, (3790), 14 states have internal predecessors, (3790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:41:59,246 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:59,246 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:41:59,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 13:41:59,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:41:59,446 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 13:41:59,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:59,447 INFO L85 PathProgramCache]: Analyzing trace with hash -2085029459, now seen corresponding path program 2 times [2022-12-13 13:41:59,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:41:59,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143021603] [2022-12-13 13:41:59,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:59,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:41:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:59,906 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:41:59,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:41:59,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143021603] [2022-12-13 13:41:59,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143021603] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:41:59,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424283745] [2022-12-13 13:41:59,907 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:41:59,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:41:59,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:41:59,908 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:41:59,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 13:42:00,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 13:42:00,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:42:00,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 13:42:00,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:42:00,235 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 [2022-12-13 13:42:00,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:42:00,253 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 [2022-12-13 13:42:00,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:42:00,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:42:00,283 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:42:00,283 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 [2022-12-13 13:42:00,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:42:00,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:42:00,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:42:00,314 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:42:00,314 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 [2022-12-13 13:42:00,343 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-12-13 13:42:00,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:42:00,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424283745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:42:00,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:42:00,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2022-12-13 13:42:00,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814948086] [2022-12-13 13:42:00,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:42:00,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:42:00,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:42:00,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:42:00,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:42:00,760 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 528 [2022-12-13 13:42:00,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 153 transitions, 716 flow. Second operand has 8 states, 8 states have (on average 202.75) internal successors, (1622), 8 states have internal predecessors, (1622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:42:00,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:42:00,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 528 [2022-12-13 13:42:00,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:42:01,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 13:42:03,423 INFO L130 PetriNetUnfolder]: 1011/2561 cut-off events. [2022-12-13 13:42:03,424 INFO L131 PetriNetUnfolder]: For 883/897 co-relation queries the response was YES. [2022-12-13 13:42:03,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5971 conditions, 2561 events. 1011/2561 cut-off events. For 883/897 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 15989 event pairs, 242 based on Foata normal form. 0/2474 useless extension candidates. Maximal degree in co-relation 5901. Up to 1934 conditions per place. [2022-12-13 13:42:03,434 INFO L137 encePairwiseOnDemand]: 508/528 looper letters, 162 selfloop transitions, 62 changer transitions 0/256 dead transitions. [2022-12-13 13:42:03,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 256 transitions, 1460 flow [2022-12-13 13:42:03,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:42:03,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 13:42:03,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1763 transitions. [2022-12-13 13:42:03,450 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4173768939393939 [2022-12-13 13:42:03,451 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1763 transitions. [2022-12-13 13:42:03,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1763 transitions. [2022-12-13 13:42:03,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:42:03,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1763 transitions. [2022-12-13 13:42:03,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 220.375) internal successors, (1763), 8 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:42:03,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 528.0) internal successors, (4752), 9 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) [2022-12-13 13:42:03,457 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 528.0) internal successors, (4752), 9 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) [2022-12-13 13:42:03,457 INFO L175 Difference]: Start difference. First operand has 109 places, 153 transitions, 716 flow. Second operand 8 states and 1763 transitions. [2022-12-13 13:42:03,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 256 transitions, 1460 flow [2022-12-13 13:42:03,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 256 transitions, 1388 flow, removed 26 selfloop flow, removed 10 redundant places. [2022-12-13 13:42:03,463 INFO L231 Difference]: Finished difference. Result has 110 places, 226 transitions, 1122 flow [2022-12-13 13:42:03,464 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1122, PETRI_PLACES=110, PETRI_TRANSITIONS=226} [2022-12-13 13:42:03,464 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 25 predicate places. [2022-12-13 13:42:03,464 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 226 transitions, 1122 flow [2022-12-13 13:42:03,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 202.75) internal successors, (1622), 8 states have internal predecessors, (1622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:42:03,465 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:42:03,465 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:42:03,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 13:42:03,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:42:03,666 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 13:42:03,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:42:03,666 INFO L85 PathProgramCache]: Analyzing trace with hash 710913388, now seen corresponding path program 1 times [2022-12-13 13:42:03,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:42:03,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089545060] [2022-12-13 13:42:03,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:42:03,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:42:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:42:04,086 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:42:04,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:42:04,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089545060] [2022-12-13 13:42:04,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089545060] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:42:04,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462245624] [2022-12-13 13:42:04,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:42:04,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:42:04,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:42:04,088 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:42:04,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 13:42:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:42:04,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 2396 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:42:04,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:42:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:42:04,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:42:04,624 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:42:04,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462245624] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:42:04,624 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:42:04,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-12-13 13:42:04,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172589776] [2022-12-13 13:42:04,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:42:04,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:42:04,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:42:04,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:42:04,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:42:04,701 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 528 [2022-12-13 13:42:04,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 226 transitions, 1122 flow. Second operand has 9 states, 9 states have (on average 274.0) internal successors, (2466), 9 states have internal predecessors, (2466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:42:04,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:42:04,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 528 [2022-12-13 13:42:04,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:42:08,181 INFO L130 PetriNetUnfolder]: 322/1583 cut-off events. [2022-12-13 13:42:08,181 INFO L131 PetriNetUnfolder]: For 387/429 co-relation queries the response was YES. [2022-12-13 13:42:08,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3485 conditions, 1583 events. 322/1583 cut-off events. For 387/429 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11353 event pairs, 88 based on Foata normal form. 3/1525 useless extension candidates. Maximal degree in co-relation 3435. Up to 509 conditions per place. [2022-12-13 13:42:08,187 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 52 selfloop transitions, 7 changer transitions 0/230 dead transitions. [2022-12-13 13:42:08,187 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 230 transitions, 1264 flow [2022-12-13 13:42:08,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:42:08,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 13:42:08,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2212 transitions. [2022-12-13 13:42:08,189 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5236742424242424 [2022-12-13 13:42:08,190 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2212 transitions. [2022-12-13 13:42:08,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2212 transitions. [2022-12-13 13:42:08,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:42:08,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2212 transitions. [2022-12-13 13:42:08,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 276.5) internal successors, (2212), 8 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:42:08,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 528.0) internal successors, (4752), 9 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) [2022-12-13 13:42:08,196 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 528.0) internal successors, (4752), 9 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) [2022-12-13 13:42:08,197 INFO L175 Difference]: Start difference. First operand has 110 places, 226 transitions, 1122 flow. Second operand 8 states and 2212 transitions. [2022-12-13 13:42:08,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 230 transitions, 1264 flow [2022-12-13 13:42:08,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 230 transitions, 1238 flow, removed 12 selfloop flow, removed 1 redundant places. [2022-12-13 13:42:08,203 INFO L231 Difference]: Finished difference. Result has 120 places, 230 transitions, 1152 flow [2022-12-13 13:42:08,203 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1152, PETRI_PLACES=120, PETRI_TRANSITIONS=230} [2022-12-13 13:42:08,203 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 35 predicate places. [2022-12-13 13:42:08,203 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 230 transitions, 1152 flow [2022-12-13 13:42:08,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 274.0) internal successors, (2466), 9 states have internal predecessors, (2466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:42:08,204 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:42:08,204 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:42:08,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-13 13:42:08,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:42:08,405 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 13:42:08,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:42:08,405 INFO L85 PathProgramCache]: Analyzing trace with hash 508569408, now seen corresponding path program 2 times [2022-12-13 13:42:08,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:42:08,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468686930] [2022-12-13 13:42:08,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:42:08,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:42:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:42:09,598 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:42:09,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:42:09,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468686930] [2022-12-13 13:42:09,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468686930] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:42:09,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276281594] [2022-12-13 13:42:09,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:42:09,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:42:09,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:42:09,600 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:42:09,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 13:42:10,944 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:42:10,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:42:10,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 6728 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 13:42:10,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:42:10,998 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:42:10,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:42:11,039 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 13:42:11,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276281594] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:42:11,039 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:42:11,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2022-12-13 13:42:11,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261735884] [2022-12-13 13:42:11,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:42:11,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 13:42:11,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:42:11,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 13:42:11,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-13 13:42:11,150 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 528 [2022-12-13 13:42:11,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 230 transitions, 1152 flow. Second operand has 13 states, 13 states have (on average 273.7692307692308) internal successors, (3559), 13 states have internal predecessors, (3559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:42:11,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:42:11,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 528 [2022-12-13 13:42:11,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:42:13,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 13:42:15,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 13:42:17,701 INFO L130 PetriNetUnfolder]: 322/1587 cut-off events. [2022-12-13 13:42:17,701 INFO L131 PetriNetUnfolder]: For 408/450 co-relation queries the response was YES. [2022-12-13 13:42:17,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3500 conditions, 1587 events. 322/1587 cut-off events. For 408/450 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11368 event pairs, 88 based on Foata normal form. 7/1534 useless extension candidates. Maximal degree in co-relation 3442. Up to 509 conditions per place. [2022-12-13 13:42:17,708 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 52 selfloop transitions, 11 changer transitions 0/234 dead transitions. [2022-12-13 13:42:17,708 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 234 transitions, 1310 flow [2022-12-13 13:42:17,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 13:42:17,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 13:42:17,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3304 transitions. [2022-12-13 13:42:17,712 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5214646464646465 [2022-12-13 13:42:17,712 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3304 transitions. [2022-12-13 13:42:17,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3304 transitions. [2022-12-13 13:42:17,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:42:17,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3304 transitions. [2022-12-13 13:42:17,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 275.3333333333333) internal successors, (3304), 12 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:42:17,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 528.0) internal successors, (6864), 13 states have internal predecessors, (6864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:42:17,723 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 528.0) internal successors, (6864), 13 states have internal predecessors, (6864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:42:17,723 INFO L175 Difference]: Start difference. First operand has 120 places, 230 transitions, 1152 flow. Second operand 12 states and 3304 transitions. [2022-12-13 13:42:17,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 234 transitions, 1310 flow [2022-12-13 13:42:17,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 234 transitions, 1282 flow, removed 12 selfloop flow, removed 2 redundant places. [2022-12-13 13:42:17,729 INFO L231 Difference]: Finished difference. Result has 133 places, 234 transitions, 1196 flow [2022-12-13 13:42:17,729 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1196, PETRI_PLACES=133, PETRI_TRANSITIONS=234} [2022-12-13 13:42:17,730 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 48 predicate places. [2022-12-13 13:42:17,730 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 234 transitions, 1196 flow [2022-12-13 13:42:17,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 273.7692307692308) internal successors, (3559), 13 states have internal predecessors, (3559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:42:17,731 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:42:17,731 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:42:17,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 13:42:17,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:42:17,932 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 13:42:17,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:42:17,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1854962128, now seen corresponding path program 3 times [2022-12-13 13:42:17,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:42:17,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588427270] [2022-12-13 13:42:17,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:42:17,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:42:30,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:43:00,482 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-12-13 13:43:00,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:43:00,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588427270] [2022-12-13 13:43:00,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588427270] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:43:00,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905482167] [2022-12-13 13:43:00,483 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 13:43:00,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:43:00,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:00,484 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:43:00,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d26c47-3313-47ee-a1fd-e4f72e9aa27d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process