./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_e6804894-7ca6-43ea-a43e-81292b01b40e/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --- 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-5e519f3 [2022-11-02 20:36:15,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:36:15,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:36:15,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:36:15,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:36:15,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:36:15,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:36:15,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:36:15,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:36:15,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:36:15,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:36:15,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:36:15,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:36:15,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:36:15,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:36:15,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:36:15,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:36:15,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:36:15,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:36:15,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:36:15,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:36:15,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:36:15,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:36:15,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:36:15,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:36:15,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:36:15,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:36:15,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:36:15,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:36:15,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:36:15,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:36:15,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:36:15,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:36:15,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:36:15,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:36:15,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:36:15,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:36:15,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:36:15,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:36:15,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:36:15,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:36:15,837 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:36:15,859 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:36:15,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:36:15,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:36:15,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:36:15,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:36:15,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:36:15,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:36:15,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:36:15,862 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:36:15,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:36:15,862 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:36:15,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:36:15,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:36:15,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:36:15,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:36:15,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:36:15,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:36:15,864 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:36:15,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:36:15,864 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:36:15,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:36:15,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:36:15,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:36:15,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:36:15,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:36:15,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:36:15,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:36:15,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:36:15,866 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:36:15,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:36:15,867 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:36:15,867 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:36:15,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:36:15,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b [2022-11-02 20:36:16,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:36:16,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:36:16,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:36:16,251 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:36:16,253 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:36:16,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2022-11-02 20:36:16,334 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/bin/uautomizer-Dbtcem3rbc/data/ca81dea2b/db87bef870b44c03b0dcab40184c73c1/FLAG1b2654e1c [2022-11-02 20:36:17,053 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:36:17,053 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2022-11-02 20:36:17,073 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/bin/uautomizer-Dbtcem3rbc/data/ca81dea2b/db87bef870b44c03b0dcab40184c73c1/FLAG1b2654e1c [2022-11-02 20:36:17,279 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/bin/uautomizer-Dbtcem3rbc/data/ca81dea2b/db87bef870b44c03b0dcab40184c73c1 [2022-11-02 20:36:17,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:36:17,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:36:17,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:36:17,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:36:17,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:36:17,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:36:17" (1/1) ... [2022-11-02 20:36:17,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@590cd2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:17, skipping insertion in model container [2022-11-02 20:36:17,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:36:17" (1/1) ... [2022-11-02 20:36:17,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:36:17,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:36:17,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2022-11-02 20:36:17,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:36:17,983 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:36:18,043 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2022-11-02 20:36:18,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:36:18,150 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:36:18,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:18 WrapperNode [2022-11-02 20:36:18,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:36:18,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:36:18,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:36:18,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:36:18,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:18" (1/1) ... [2022-11-02 20:36:18,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:18" (1/1) ... [2022-11-02 20:36:18,214 INFO L138 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 343 [2022-11-02 20:36:18,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:36:18,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:36:18,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:36:18,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:36:18,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:18" (1/1) ... [2022-11-02 20:36:18,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:18" (1/1) ... [2022-11-02 20:36:18,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:18" (1/1) ... [2022-11-02 20:36:18,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:18" (1/1) ... [2022-11-02 20:36:18,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:18" (1/1) ... [2022-11-02 20:36:18,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:18" (1/1) ... [2022-11-02 20:36:18,250 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:18" (1/1) ... [2022-11-02 20:36:18,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:18" (1/1) ... [2022-11-02 20:36:18,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:36:18,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:36:18,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:36:18,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:36:18,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:18" (1/1) ... [2022-11-02 20:36:18,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:36:18,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:36:18,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:36:18,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6804894-7ca6-43ea-a43e-81292b01b40e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:36:18,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:36:18,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:36:18,373 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-02 20:36:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-02 20:36:18,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:36:18,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:36:18,374 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-02 20:36:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-02 20:36:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:36:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:36:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:36:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:36:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:36:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-11-02 20:36:18,377 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-11-02 20:36:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:36:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:36:18,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:36:18,380 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:36:18,657 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:36:18,659 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:36:19,224 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:36:19,237 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:36:19,237 INFO L300 CfgBuilder]: Removed 28 assume(true) statements. [2022-11-02 20:36:19,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:36:19 BoogieIcfgContainer [2022-11-02 20:36:19,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:36:19,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:36:19,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:36:19,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:36:19,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:36:17" (1/3) ... [2022-11-02 20:36:19,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3155d447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:36:19, skipping insertion in model container [2022-11-02 20:36:19,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:18" (2/3) ... [2022-11-02 20:36:19,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3155d447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:36:19, skipping insertion in model container [2022-11-02 20:36:19,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:36:19" (3/3) ... [2022-11-02 20:36:19,253 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2022-11-02 20:36:19,263 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:36:19,275 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:36:19,276 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 20:36:19,277 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:36:19,488 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-11-02 20:36:19,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 329 places, 368 transitions, 778 flow [2022-11-02 20:36:20,107 INFO L130 PetriNetUnfolder]: 165/1104 cut-off events. [2022-11-02 20:36:20,107 INFO L131 PetriNetUnfolder]: For 36/65 co-relation queries the response was YES. [2022-11-02 20:36:20,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1165 conditions, 1104 events. 165/1104 cut-off events. For 36/65 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6934 event pairs, 0 based on Foata normal form. 0/923 useless extension candidates. Maximal degree in co-relation 572. Up to 16 conditions per place. [2022-11-02 20:36:20,137 INFO L82 GeneralOperation]: Start removeDead. Operand has 329 places, 368 transitions, 778 flow [2022-11-02 20:36:20,161 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 329 places, 368 transitions, 778 flow [2022-11-02 20:36:20,179 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:36:20,188 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;@8f837a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:36:20,188 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-02 20:36:20,215 INFO L130 PetriNetUnfolder]: 9/159 cut-off events. [2022-11-02 20:36:20,216 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:36:20,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:20,218 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:36:20,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:36:20,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:20,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1959707075, now seen corresponding path program 1 times [2022-11-02 20:36:20,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:20,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905952592] [2022-11-02 20:36:20,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:20,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:36:20,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:36:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:36:20,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:36:20,573 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:36:20,574 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-02 20:36:20,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-11-02 20:36:20,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-11-02 20:36:20,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-11-02 20:36:20,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-11-02 20:36:20,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-11-02 20:36:20,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-11-02 20:36:20,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:36:20,579 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-02 20:36:20,583 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 20:36:20,583 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-02 20:36:20,722 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-02 20:36:20,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 522 places, 595 transitions, 1280 flow [2022-11-02 20:36:23,784 INFO L130 PetriNetUnfolder]: 1132/5616 cut-off events. [2022-11-02 20:36:23,784 INFO L131 PetriNetUnfolder]: For 602/794 co-relation queries the response was YES. [2022-11-02 20:36:23,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6290 conditions, 5616 events. 1132/5616 cut-off events. For 602/794 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 51808 event pairs, 22 based on Foata normal form. 0/4726 useless extension candidates. Maximal degree in co-relation 3517. Up to 192 conditions per place. [2022-11-02 20:36:23,960 INFO L82 GeneralOperation]: Start removeDead. Operand has 522 places, 595 transitions, 1280 flow [2022-11-02 20:36:24,057 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 522 places, 595 transitions, 1280 flow [2022-11-02 20:36:24,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:36:24,060 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;@8f837a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:36:24,060 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-02 20:36:24,110 INFO L130 PetriNetUnfolder]: 29/386 cut-off events. [2022-11-02 20:36:24,110 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-02 20:36:24,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:24,111 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:36:24,112 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-02 20:36:24,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:24,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1652026964, now seen corresponding path program 1 times [2022-11-02 20:36:24,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:24,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982114632] [2022-11-02 20:36:24,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:24,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:36:24,187 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:36:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:36:24,237 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:36:24,237 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:36:24,238 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-11-02 20:36:24,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2022-11-02 20:36:24,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2022-11-02 20:36:24,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2022-11-02 20:36:24,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2022-11-02 20:36:24,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2022-11-02 20:36:24,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2022-11-02 20:36:24,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2022-11-02 20:36:24,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2022-11-02 20:36:24,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:36:24,241 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-02 20:36:24,241 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 20:36:24,241 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-02 20:36:24,378 INFO L144 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2022-11-02 20:36:24,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 715 places, 822 transitions, 1788 flow [2022-11-02 20:36:46,757 INFO L130 PetriNetUnfolder]: 8987/31908 cut-off events. [2022-11-02 20:36:46,757 INFO L131 PetriNetUnfolder]: For 7059/7576 co-relation queries the response was YES. [2022-11-02 20:36:49,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39082 conditions, 31908 events. 8987/31908 cut-off events. For 7059/7576 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 353151 event pairs, 912 based on Foata normal form. 0/27605 useless extension candidates. Maximal degree in co-relation 20470. Up to 2304 conditions per place. [2022-11-02 20:36:49,569 INFO L82 GeneralOperation]: Start removeDead. Operand has 715 places, 822 transitions, 1788 flow [2022-11-02 20:36:51,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 715 places, 822 transitions, 1788 flow [2022-11-02 20:36:51,135 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:36:51,136 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;@8f837a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:36:51,136 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-02 20:36:51,234 INFO L130 PetriNetUnfolder]: 82/885 cut-off events. [2022-11-02 20:36:51,234 INFO L131 PetriNetUnfolder]: For 33/51 co-relation queries the response was YES. [2022-11-02 20:36:51,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:51,235 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:36:51,235 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:36:51,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:51,236 INFO L85 PathProgramCache]: Analyzing trace with hash -786182437, now seen corresponding path program 1 times [2022-11-02 20:36:51,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:51,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868974595] [2022-11-02 20:36:51,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:51,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:36:51,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:36:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:36:51,338 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:36:51,339 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:36:51,339 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2022-11-02 20:36:51,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2022-11-02 20:36:51,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2022-11-02 20:36:51,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2022-11-02 20:36:51,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2022-11-02 20:36:51,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2022-11-02 20:36:51,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2022-11-02 20:36:51,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2022-11-02 20:36:51,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2022-11-02 20:36:51,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2022-11-02 20:36:51,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2022-11-02 20:36:51,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:36:51,342 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-02 20:36:51,343 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 20:36:51,343 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-11-02 20:36:51,504 INFO L144 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2022-11-02 20:36:51,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 908 places, 1049 transitions, 2302 flow