./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1fe12ce8951e45860142b9cebaa325eef531c18fa917882c03ee5396afb187f5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:01:16,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:01:16,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:01:16,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:01:16,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:01:16,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:01:16,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:01:16,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:01:16,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:01:16,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:01:16,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:01:16,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:01:16,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:01:16,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:01:16,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:01:16,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:01:16,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:01:16,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:01:16,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:01:16,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:01:16,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:01:16,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:01:16,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:01:16,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:01:16,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:01:16,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:01:16,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:01:16,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:01:16,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:01:16,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:01:16,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:01:16,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:01:16,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:01:16,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:01:16,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:01:16,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:01:16,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:01:16,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:01:16,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:01:16,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:01:16,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:01:16,556 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:01:16,590 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:01:16,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:01:16,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:01:16,592 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:01:16,592 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:01:16,593 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:01:16,593 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:01:16,594 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:01:16,594 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:01:16,594 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:01:16,595 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:01:16,595 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:01:16,595 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:01:16,596 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:01:16,596 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:01:16,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:01:16,597 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:01:16,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:01:16,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:01:16,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:01:16,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:01:16,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:01:16,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:01:16,599 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:01:16,600 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:01:16,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:01:16,600 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:01:16,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:01:16,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:01:16,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:01:16,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:01:16,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:01:16,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:01:16,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:01:16,603 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:01:16,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:01:16,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:01:16,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:01:16,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:01:16,604 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fe12ce8951e45860142b9cebaa325eef531c18fa917882c03ee5396afb187f5 [2021-11-07 02:01:16,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:01:16,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:01:16,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:01:16,944 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:01:16,945 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:01:16,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i [2021-11-07 02:01:17,071 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/data/0d1b736ed/cc9738c699ef4c72b3d7f3eaacecd5d7/FLAG4b3c00028 [2021-11-07 02:01:17,760 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:01:17,762 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i [2021-11-07 02:01:17,786 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/data/0d1b736ed/cc9738c699ef4c72b3d7f3eaacecd5d7/FLAG4b3c00028 [2021-11-07 02:01:17,969 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/data/0d1b736ed/cc9738c699ef4c72b3d7f3eaacecd5d7 [2021-11-07 02:01:17,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:01:17,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:01:17,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:01:17,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:01:17,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:01:17,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:01:17" (1/1) ... [2021-11-07 02:01:17,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ea4f35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:17, skipping insertion in model container [2021-11-07 02:01:17,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:01:17" (1/1) ... [2021-11-07 02:01:18,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:01:18,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:01:18,549 WARN L228 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_1530b3ef-78ce-4e0a-ac55-4d4749729116/sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i[30176,30189] [2021-11-07 02:01:18,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:01:18,608 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:01:18,650 WARN L228 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_1530b3ef-78ce-4e0a-ac55-4d4749729116/sv-benchmarks/c/goblint-regression/28-race_reach_05-lockfuns_racefree.i[30176,30189] [2021-11-07 02:01:18,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:01:18,740 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:01:18,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:18 WrapperNode [2021-11-07 02:01:18,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:01:18,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:01:18,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:01:18,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:01:18,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:18" (1/1) ... [2021-11-07 02:01:18,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:18" (1/1) ... [2021-11-07 02:01:18,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:01:18,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:01:18,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:01:18,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:01:18,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:18" (1/1) ... [2021-11-07 02:01:18,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:18" (1/1) ... [2021-11-07 02:01:18,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:18" (1/1) ... [2021-11-07 02:01:18,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:18" (1/1) ... [2021-11-07 02:01:18,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:18" (1/1) ... [2021-11-07 02:01:18,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:18" (1/1) ... [2021-11-07 02:01:18,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:18" (1/1) ... [2021-11-07 02:01:18,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:01:18,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:01:18,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:01:18,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:01:18,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:18" (1/1) ... [2021-11-07 02:01:18,860 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:01:18,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:01:18,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:01:18,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:01:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 02:01:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 02:01:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-07 02:01:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:01:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-07 02:01:18,965 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-07 02:01:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:01:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 02:01:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:01:18,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:01:18,969 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 02:01:19,451 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:01:19,451 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-11-07 02:01:19,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:01:19 BoogieIcfgContainer [2021-11-07 02:01:19,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:01:19,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:01:19,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:01:19,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:01:19,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:01:17" (1/3) ... [2021-11-07 02:01:19,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c3a3347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:01:19, skipping insertion in model container [2021-11-07 02:01:19,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:01:18" (2/3) ... [2021-11-07 02:01:19,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c3a3347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:01:19, skipping insertion in model container [2021-11-07 02:01:19,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:01:19" (3/3) ... [2021-11-07 02:01:19,464 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_05-lockfuns_racefree.i [2021-11-07 02:01:19,471 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 02:01:19,472 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:01:19,472 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 02:01:19,472 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 02:01:19,507 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,507 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,507 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,507 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,508 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,508 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,517 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,517 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,517 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,522 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,523 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:19,541 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-07 02:01:19,602 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:01:19,610 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:01:19,610 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-07 02:01:19,629 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 02:01:19,643 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 99 transitions, 206 flow [2021-11-07 02:01:19,647 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 99 transitions, 206 flow [2021-11-07 02:01:19,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 99 transitions, 206 flow [2021-11-07 02:01:19,715 INFO L129 PetriNetUnfolder]: 17/133 cut-off events. [2021-11-07 02:01:19,715 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-07 02:01:19,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 133 events. 17/133 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 321 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 68. Up to 4 conditions per place. [2021-11-07 02:01:19,732 INFO L116 LiptonReduction]: Number of co-enabled transitions 2320 [2021-11-07 02:01:24,248 INFO L131 LiptonReduction]: Checked pairs total: 3554 [2021-11-07 02:01:24,249 INFO L133 LiptonReduction]: Total number of compositions: 85 [2021-11-07 02:01:24,258 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 32 transitions, 72 flow [2021-11-07 02:01:24,279 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 98 states, 93 states have (on average 2.5161290322580645) internal successors, (234), 97 states have internal predecessors, (234), 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) [2021-11-07 02:01:24,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 93 states have (on average 2.5161290322580645) internal successors, (234), 97 states have internal predecessors, (234), 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) [2021-11-07 02:01:24,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 02:01:24,289 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:24,290 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 02:01:24,290 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 02:01:24,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:24,297 INFO L85 PathProgramCache]: Analyzing trace with hash 12290806, now seen corresponding path program 1 times [2021-11-07 02:01:24,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:01:24,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159646430] [2021-11-07 02:01:24,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:24,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:01:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:24,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:24,520 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:01:24,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159646430] [2021-11-07 02:01:24,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159646430] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:01:24,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:01:24,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 02:01:24,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58302048] [2021-11-07 02:01:24,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:01:24,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:01:24,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:01:24,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:01:24,552 INFO L87 Difference]: Start difference. First operand has 98 states, 93 states have (on average 2.5161290322580645) internal successors, (234), 97 states have internal predecessors, (234), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-11-07 02:01:24,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:01:24,598 INFO L93 Difference]: Finished difference Result 93 states and 164 transitions. [2021-11-07 02:01:24,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:01:24,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2021-11-07 02:01:24,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:01:24,614 INFO L225 Difference]: With dead ends: 93 [2021-11-07 02:01:24,621 INFO L226 Difference]: Without dead ends: 73 [2021-11-07 02:01:24,622 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:01:24,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-07 02:01:24,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-11-07 02:01:24,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 71 states have (on average 1.7746478873239437) internal successors, (126), 72 states have internal predecessors, (126), 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) [2021-11-07 02:01:24,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 126 transitions. [2021-11-07 02:01:24,668 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 126 transitions. Word has length 4 [2021-11-07 02:01:24,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:01:24,669 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 126 transitions. [2021-11-07 02:01:24,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-11-07 02:01:24,670 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 126 transitions. [2021-11-07 02:01:24,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 02:01:24,670 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:24,671 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2021-11-07 02:01:24,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 02:01:24,672 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 02:01:24,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:24,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1076260302, now seen corresponding path program 1 times [2021-11-07 02:01:24,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:01:24,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425940190] [2021-11-07 02:01:24,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:24,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:01:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:01:24,735 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 02:01:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:01:24,835 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 02:01:24,836 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 02:01:24,838 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 02:01:24,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:01:24,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 02:01:24,843 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-07 02:01:24,845 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-07 02:01:24,845 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-07 02:01:24,856 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,857 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,857 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,858 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,858 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,858 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,858 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,859 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,859 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,859 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,859 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,860 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,860 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,860 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,860 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,864 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,865 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,866 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,867 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,867 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,868 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,868 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,868 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,869 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,877 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,878 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,879 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,881 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,881 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:24,890 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-07 02:01:24,892 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:01:24,894 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:01:24,895 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-07 02:01:24,898 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 02:01:24,899 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 130 transitions, 278 flow [2021-11-07 02:01:24,899 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 130 transitions, 278 flow [2021-11-07 02:01:24,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 130 transitions, 278 flow [2021-11-07 02:01:24,960 INFO L129 PetriNetUnfolder]: 31/222 cut-off events. [2021-11-07 02:01:24,960 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-11-07 02:01:24,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 222 events. 31/222 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 641 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 135. Up to 8 conditions per place. [2021-11-07 02:01:24,976 INFO L116 LiptonReduction]: Number of co-enabled transitions 6960 [2021-11-07 02:01:29,424 INFO L131 LiptonReduction]: Checked pairs total: 14111 [2021-11-07 02:01:29,424 INFO L133 LiptonReduction]: Total number of compositions: 106 [2021-11-07 02:01:29,426 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 55 transitions, 128 flow [2021-11-07 02:01:29,510 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1556 states, 1549 states have (on average 3.7456423499031635) internal successors, (5802), 1555 states have internal predecessors, (5802), 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) [2021-11-07 02:01:29,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 1556 states, 1549 states have (on average 3.7456423499031635) internal successors, (5802), 1555 states have internal predecessors, (5802), 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) [2021-11-07 02:01:29,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 02:01:29,519 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:29,519 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 02:01:29,520 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 02:01:29,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:29,521 INFO L85 PathProgramCache]: Analyzing trace with hash 20456872, now seen corresponding path program 1 times [2021-11-07 02:01:29,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:01:29,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533336787] [2021-11-07 02:01:29,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:29,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:01:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:29,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:29,621 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:01:29,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533336787] [2021-11-07 02:01:29,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533336787] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:01:29,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:01:29,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 02:01:29,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106411312] [2021-11-07 02:01:29,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:01:29,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:01:29,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:01:29,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:01:29,660 INFO L87 Difference]: Start difference. First operand has 1556 states, 1549 states have (on average 3.7456423499031635) internal successors, (5802), 1555 states have internal predecessors, (5802), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-11-07 02:01:29,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:01:29,741 INFO L93 Difference]: Finished difference Result 1551 states and 4146 transitions. [2021-11-07 02:01:29,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:01:29,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2021-11-07 02:01:29,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:01:29,769 INFO L225 Difference]: With dead ends: 1551 [2021-11-07 02:01:29,769 INFO L226 Difference]: Without dead ends: 1239 [2021-11-07 02:01:29,771 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:01:29,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2021-11-07 02:01:29,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1239. [2021-11-07 02:01:29,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 1236 states have (on average 2.656957928802589) internal successors, (3284), 1238 states have internal predecessors, (3284), 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) [2021-11-07 02:01:29,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 3284 transitions. [2021-11-07 02:01:29,904 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 3284 transitions. Word has length 4 [2021-11-07 02:01:29,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:01:29,905 INFO L470 AbstractCegarLoop]: Abstraction has 1239 states and 3284 transitions. [2021-11-07 02:01:29,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-11-07 02:01:29,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 3284 transitions. [2021-11-07 02:01:29,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 02:01:29,906 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:29,907 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:01:29,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 02:01:29,908 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 02:01:29,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:29,909 INFO L85 PathProgramCache]: Analyzing trace with hash 737751232, now seen corresponding path program 1 times [2021-11-07 02:01:29,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:01:29,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356544633] [2021-11-07 02:01:29,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:29,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:01:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:30,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:30,002 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:01:30,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356544633] [2021-11-07 02:01:30,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356544633] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:01:30,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836887822] [2021-11-07 02:01:30,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:30,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:01:30,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:01:30,012 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:01:30,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 02:01:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:30,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:01:30,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:01:30,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:30,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:01:30,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:30,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836887822] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:01:30,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2083663280] [2021-11-07 02:01:30,287 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-07 02:01:30,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 02:01:30,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2021-11-07 02:01:30,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268518724] [2021-11-07 02:01:30,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:01:30,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:01:30,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:01:30,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:01:30,294 INFO L87 Difference]: Start difference. First operand 1239 states and 3284 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-11-07 02:01:30,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:01:30,346 INFO L93 Difference]: Finished difference Result 771 states and 1991 transitions. [2021-11-07 02:01:30,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:01:30,347 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) Word has length 8 [2021-11-07 02:01:30,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:01:30,363 INFO L225 Difference]: With dead ends: 771 [2021-11-07 02:01:30,363 INFO L226 Difference]: Without dead ends: 771 [2021-11-07 02:01:30,364 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:01:30,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2021-11-07 02:01:30,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 771. [2021-11-07 02:01:30,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 770 states have (on average 2.585714285714286) internal successors, (1991), 770 states have internal predecessors, (1991), 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) [2021-11-07 02:01:30,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1991 transitions. [2021-11-07 02:01:30,435 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1991 transitions. Word has length 8 [2021-11-07 02:01:30,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:01:30,435 INFO L470 AbstractCegarLoop]: Abstraction has 771 states and 1991 transitions. [2021-11-07 02:01:30,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-11-07 02:01:30,436 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1991 transitions. [2021-11-07 02:01:30,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 02:01:30,437 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:30,438 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2021-11-07 02:01:30,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:01:30,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:01:30,639 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 02:01:30,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:30,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1755798576, now seen corresponding path program 1 times [2021-11-07 02:01:30,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:01:30,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384138535] [2021-11-07 02:01:30,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:30,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:01:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:01:30,683 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 02:01:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:01:30,715 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 02:01:30,716 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 02:01:30,716 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 02:01:30,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:01:30,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 02:01:30,717 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-07 02:01:30,718 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-07 02:01:30,718 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-11-07 02:01:30,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,730 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,730 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,731 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,731 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,739 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,739 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,739 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,739 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,740 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,740 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,740 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,740 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,740 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,741 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,741 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,741 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,741 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,742 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,742 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,742 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,742 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,743 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,743 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,743 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,743 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,743 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,744 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,744 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,744 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,744 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,745 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,745 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,745 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,745 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,746 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,746 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,746 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,746 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,746 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,747 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,747 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,747 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,748 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,748 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,748 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,748 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,749 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,749 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,749 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,749 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,749 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,750 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,750 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,750 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,751 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,751 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,752 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,752 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,752 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,753 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,753 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,753 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,753 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,753 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,755 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,755 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,755 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,755 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,756 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,756 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,756 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,756 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,756 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,757 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,758 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,758 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,758 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,760 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,761 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,761 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,761 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,761 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,762 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,762 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,764 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,764 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,764 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,765 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,765 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,765 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,765 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,765 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,766 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,767 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,768 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,768 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,768 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,768 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,769 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,769 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,769 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,769 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:30,774 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-07 02:01:30,776 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:01:30,778 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:01:30,779 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-07 02:01:30,784 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 02:01:30,784 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 161 transitions, 352 flow [2021-11-07 02:01:30,785 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 161 transitions, 352 flow [2021-11-07 02:01:30,785 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 142 places, 161 transitions, 352 flow [2021-11-07 02:01:30,871 INFO L129 PetriNetUnfolder]: 50/342 cut-off events. [2021-11-07 02:01:30,872 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-11-07 02:01:30,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 342 events. 50/342 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1116 event pairs, 1 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 230. Up to 16 conditions per place. [2021-11-07 02:01:30,901 INFO L116 LiptonReduction]: Number of co-enabled transitions 13224 [2021-11-07 02:01:35,619 INFO L131 LiptonReduction]: Checked pairs total: 29561 [2021-11-07 02:01:35,620 INFO L133 LiptonReduction]: Total number of compositions: 129 [2021-11-07 02:01:35,631 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 74 transitions, 178 flow [2021-11-07 02:01:37,098 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 18692 states, 18683 states have (on average 5.144462880693679) internal successors, (96114), 18691 states have internal predecessors, (96114), 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) [2021-11-07 02:01:37,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 18692 states, 18683 states have (on average 5.144462880693679) internal successors, (96114), 18691 states have internal predecessors, (96114), 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) [2021-11-07 02:01:37,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 02:01:37,177 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:37,178 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 02:01:37,178 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 02:01:37,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:37,180 INFO L85 PathProgramCache]: Analyzing trace with hash 30291041, now seen corresponding path program 1 times [2021-11-07 02:01:37,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:01:37,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492981929] [2021-11-07 02:01:37,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:37,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:01:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:37,349 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:01:37,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492981929] [2021-11-07 02:01:37,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492981929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:01:37,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:01:37,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 02:01:37,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898547254] [2021-11-07 02:01:37,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:01:37,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:01:37,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:01:37,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:01:37,396 INFO L87 Difference]: Start difference. First operand has 18692 states, 18683 states have (on average 5.144462880693679) internal successors, (96114), 18691 states have internal predecessors, (96114), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-11-07 02:01:38,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:01:38,219 INFO L93 Difference]: Finished difference Result 18687 states and 66954 transitions. [2021-11-07 02:01:38,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:01:38,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2021-11-07 02:01:38,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:01:38,570 INFO L225 Difference]: With dead ends: 18687 [2021-11-07 02:01:38,570 INFO L226 Difference]: Without dead ends: 14919 [2021-11-07 02:01:38,573 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:01:38,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14919 states. [2021-11-07 02:01:39,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14919 to 14919. [2021-11-07 02:01:39,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14919 states, 14915 states have (on average 3.562319812269527) internal successors, (53132), 14918 states have internal predecessors, (53132), 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) [2021-11-07 02:01:39,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14919 states to 14919 states and 53132 transitions. [2021-11-07 02:01:39,712 INFO L78 Accepts]: Start accepts. Automaton has 14919 states and 53132 transitions. Word has length 4 [2021-11-07 02:01:39,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:01:39,713 INFO L470 AbstractCegarLoop]: Abstraction has 14919 states and 53132 transitions. [2021-11-07 02:01:39,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-11-07 02:01:39,713 INFO L276 IsEmpty]: Start isEmpty. Operand 14919 states and 53132 transitions. [2021-11-07 02:01:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 02:01:39,714 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:39,715 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:01:39,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 02:01:39,715 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 02:01:39,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:39,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1404691872, now seen corresponding path program 1 times [2021-11-07 02:01:39,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:01:39,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260695252] [2021-11-07 02:01:39,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:39,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:01:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:39,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:39,758 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:01:39,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260695252] [2021-11-07 02:01:39,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260695252] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:01:39,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117786293] [2021-11-07 02:01:39,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:39,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:01:39,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:01:39,761 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:01:39,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 02:01:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:39,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:01:39,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:01:39,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:39,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:01:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:01:39,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117786293] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:01:39,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1241782340] [2021-11-07 02:01:39,919 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-07 02:01:39,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 02:01:39,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2021-11-07 02:01:39,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437866430] [2021-11-07 02:01:39,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:01:39,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:01:39,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:01:39,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:01:39,923 INFO L87 Difference]: Start difference. First operand 14919 states and 53132 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-11-07 02:01:40,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:01:40,288 INFO L93 Difference]: Finished difference Result 9267 states and 32399 transitions. [2021-11-07 02:01:40,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:01:40,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) Word has length 8 [2021-11-07 02:01:40,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:01:40,354 INFO L225 Difference]: With dead ends: 9267 [2021-11-07 02:01:40,354 INFO L226 Difference]: Without dead ends: 9267 [2021-11-07 02:01:40,355 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:01:40,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9267 states. [2021-11-07 02:01:40,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9267 to 9267. [2021-11-07 02:01:40,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9267 states, 9266 states have (on average 3.496546514137708) internal successors, (32399), 9266 states have internal predecessors, (32399), 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) [2021-11-07 02:01:41,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9267 states to 9267 states and 32399 transitions. [2021-11-07 02:01:41,148 INFO L78 Accepts]: Start accepts. Automaton has 9267 states and 32399 transitions. Word has length 8 [2021-11-07 02:01:41,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:01:41,148 INFO L470 AbstractCegarLoop]: Abstraction has 9267 states and 32399 transitions. [2021-11-07 02:01:41,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-11-07 02:01:41,149 INFO L276 IsEmpty]: Start isEmpty. Operand 9267 states and 32399 transitions. [2021-11-07 02:01:41,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 02:01:41,152 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:01:41,152 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2021-11-07 02:01:41,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:01:41,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-07 02:01:41,356 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 02:01:41,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:01:41,356 INFO L85 PathProgramCache]: Analyzing trace with hash 423720795, now seen corresponding path program 1 times [2021-11-07 02:01:41,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:01:41,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147140488] [2021-11-07 02:01:41,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:01:41,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:01:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:01:41,394 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 02:01:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:01:41,424 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 02:01:41,424 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 02:01:41,424 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 02:01:41,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:01:41,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 02:01:41,425 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-07 02:01:41,425 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-07 02:01:41,425 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-11-07 02:01:41,438 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,438 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,438 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,438 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,439 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,439 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,439 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,439 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,439 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,439 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,439 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,441 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,441 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,441 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,441 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,441 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,441 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,442 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,443 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,445 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,445 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,445 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,445 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,447 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,447 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,447 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,447 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,447 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,447 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,448 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,448 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,448 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,448 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,448 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,448 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,448 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,449 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,449 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,449 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,449 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,449 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,449 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,449 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,450 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,450 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,450 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,450 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,450 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,451 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,451 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,451 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,457 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,457 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,457 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,457 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,458 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,462 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,463 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,464 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,465 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,465 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,465 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,466 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,466 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,466 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,466 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,466 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,466 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,468 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,468 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,468 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,468 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,468 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,469 WARN L322 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,469 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,469 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,469 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,470 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,471 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,471 WARN L322 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,471 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,471 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_lock_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,471 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,471 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,472 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,472 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 02:01:41,477 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-07 02:01:41,479 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:01:41,480 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:01:41,480 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-07 02:01:41,482 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 02:01:41,483 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 168 places, 192 transitions, 428 flow [2021-11-07 02:01:41,483 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 168 places, 192 transitions, 428 flow [2021-11-07 02:01:41,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 168 places, 192 transitions, 428 flow [2021-11-07 02:01:41,587 INFO L129 PetriNetUnfolder]: 81/526 cut-off events. [2021-11-07 02:01:41,587 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2021-11-07 02:01:41,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 581 conditions, 526 events. 81/526 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1937 event pairs, 6 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 362. Up to 32 conditions per place. [2021-11-07 02:01:41,636 INFO L116 LiptonReduction]: Number of co-enabled transitions 21344 [2021-11-07 02:01:47,075 INFO L131 LiptonReduction]: Checked pairs total: 42742 [2021-11-07 02:01:47,076 INFO L133 LiptonReduction]: Total number of compositions: 148 [2021-11-07 02:01:47,077 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 94 transitions, 232 flow [2021-11-07 02:01:59,536 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 224324 states, 224318 states have (on average 6.659256056134595) internal successors, (1493791), 224323 states have internal predecessors, (1493791), 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) [2021-11-07 02:02:00,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 224324 states, 224318 states have (on average 6.659256056134595) internal successors, (1493791), 224323 states have internal predecessors, (1493791), 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) [2021-11-07 02:02:00,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 02:02:00,046 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:00,047 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 02:02:00,047 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 02:02:00,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:00,048 INFO L85 PathProgramCache]: Analyzing trace with hash 41636764, now seen corresponding path program 1 times [2021-11-07 02:02:00,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:02:00,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538214204] [2021-11-07 02:02:00,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:00,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:02:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:00,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:00,072 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:02:00,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538214204] [2021-11-07 02:02:00,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538214204] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:00,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:00,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 02:02:00,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020639879] [2021-11-07 02:02:00,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:02:00,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:02:00,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:02:00,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:02:00,536 INFO L87 Difference]: Start difference. First operand has 224324 states, 224318 states have (on average 6.659256056134595) internal successors, (1493791), 224323 states have internal predecessors, (1493791), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-11-07 02:02:07,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:07,319 INFO L93 Difference]: Finished difference Result 224319 states and 1009146 transitions. [2021-11-07 02:02:07,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:02:07,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2021-11-07 02:02:07,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:09,556 INFO L225 Difference]: With dead ends: 224319 [2021-11-07 02:02:09,556 INFO L226 Difference]: Without dead ends: 179079 [2021-11-07 02:02:09,556 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:02:11,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179079 states. [2021-11-07 02:02:18,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179079 to 179079. [2021-11-07 02:02:19,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179079 states, 179074 states have (on average 4.4774115728693165) internal successors, (801788), 179078 states have internal predecessors, (801788), 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) [2021-11-07 02:02:21,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179079 states to 179079 states and 801788 transitions. [2021-11-07 02:02:21,621 INFO L78 Accepts]: Start accepts. Automaton has 179079 states and 801788 transitions. Word has length 4 [2021-11-07 02:02:21,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:21,621 INFO L470 AbstractCegarLoop]: Abstraction has 179079 states and 801788 transitions. [2021-11-07 02:02:21,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-11-07 02:02:21,622 INFO L276 IsEmpty]: Start isEmpty. Operand 179079 states and 801788 transitions. [2021-11-07 02:02:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 02:02:21,622 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:21,623 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:02:21,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 02:02:21,623 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 02:02:21,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:21,624 INFO L85 PathProgramCache]: Analyzing trace with hash -741818225, now seen corresponding path program 1 times [2021-11-07 02:02:21,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:02:21,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851643567] [2021-11-07 02:02:21,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:21,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:02:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:21,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:21,656 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:02:21,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851643567] [2021-11-07 02:02:21,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851643567] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:02:21,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146117820] [2021-11-07 02:02:21,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:21,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:02:21,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:02:21,658 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:02:21,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1530b3ef-78ce-4e0a-ac55-4d4749729116/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 02:02:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:21,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:02:21,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:21,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:21,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:21,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:21,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146117820] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:02:21,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [752362431] [2021-11-07 02:02:21,834 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-07 02:02:21,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 02:02:21,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2021-11-07 02:02:21,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375342657] [2021-11-07 02:02:21,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:02:21,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:02:21,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:02:21,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:02:21,841 INFO L87 Difference]: Start difference. First operand 179079 states and 801788 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-11-07 02:02:26,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:26,068 INFO L93 Difference]: Finished difference Result 173427 states and 781055 transitions. [2021-11-07 02:02:26,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:02:26,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) Word has length 8 [2021-11-07 02:02:26,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:27,719 INFO L225 Difference]: With dead ends: 173427 [2021-11-07 02:02:27,719 INFO L226 Difference]: Without dead ends: 173427 [2021-11-07 02:02:27,720 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42