./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF --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 16b41d7352a3e7bca6c65d29839f35cd9a045339e5497acb7d0d6bf7ecef2ad7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:27:29,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:27:29,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:27:29,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:27:29,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:27:29,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:27:29,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:27:29,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:27:29,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:27:29,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:27:29,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:27:29,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:27:29,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:27:29,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:27:29,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:27:29,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:27:29,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:27:29,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:27:29,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:27:29,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:27:29,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:27:29,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:27:29,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:27:29,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:27:29,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:27:29,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:27:29,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:27:29,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:27:29,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:27:29,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:27:29,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:27:29,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:27:29,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:27:29,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:27:29,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:27:29,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:27:29,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:27:29,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:27:29,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:27:29,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:27:29,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:27:29,413 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 22:27:29,465 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:27:29,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:27:29,467 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:27:29,467 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:27:29,467 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:27:29,467 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:27:29,468 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:27:29,468 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:27:29,468 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:27:29,469 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:27:29,469 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:27:29,469 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:27:29,469 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:27:29,470 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:27:29,470 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:27:29,470 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:27:29,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:27:29,471 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:27:29,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:27:29,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:27:29,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:27:29,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:27:29,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:27:29,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:27:29,473 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:27:29,473 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:27:29,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:27:29,474 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:27:29,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:27:29,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:27:29,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:27:29,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:29,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:27:29,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:27:29,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:27:29,476 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:27:29,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:27:29,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:27:29,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:27:29,477 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:27:29,477 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_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16b41d7352a3e7bca6c65d29839f35cd9a045339e5497acb7d0d6bf7ecef2ad7 [2021-11-12 22:27:29,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:27:29,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:27:29,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:27:29,826 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:27:29,829 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:27:29,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2021-11-12 22:27:29,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF/data/a3bb05a2c/b488a712e62246629a35d61082b85a1d/FLAG904de8ac3 [2021-11-12 22:27:30,517 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:27:30,518 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2021-11-12 22:27:30,536 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF/data/a3bb05a2c/b488a712e62246629a35d61082b85a1d/FLAG904de8ac3 [2021-11-12 22:27:30,793 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF/data/a3bb05a2c/b488a712e62246629a35d61082b85a1d [2021-11-12 22:27:30,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:27:30,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:27:30,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:30,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:27:30,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:27:30,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:30" (1/1) ... [2021-11-12 22:27:30,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d6fc0e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:30, skipping insertion in model container [2021-11-12 22:27:30,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:30" (1/1) ... [2021-11-12 22:27:30,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:27:30,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:27:31,135 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_22bb65da-5c2e-4039-95b8-a932fe7e1079/sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i[1097,1110] [2021-11-12 22:27:31,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:31,449 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:27:31,468 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_22bb65da-5c2e-4039-95b8-a932fe7e1079/sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i[1097,1110] [2021-11-12 22:27:31,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:31,601 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:27:31,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:31 WrapperNode [2021-11-12 22:27:31,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:31,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:27:31,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:27:31,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:27:31,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:31" (1/1) ... [2021-11-12 22:27:31,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:31" (1/1) ... [2021-11-12 22:27:31,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:27:31,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:27:31,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:27:31,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:27:31,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:31" (1/1) ... [2021-11-12 22:27:31,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:31" (1/1) ... [2021-11-12 22:27:31,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:31" (1/1) ... [2021-11-12 22:27:31,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:31" (1/1) ... [2021-11-12 22:27:31,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:31" (1/1) ... [2021-11-12 22:27:31,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:31" (1/1) ... [2021-11-12 22:27:31,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:31" (1/1) ... [2021-11-12 22:27:31,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:27:31,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:27:31,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:27:31,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:27:31,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:31" (1/1) ... [2021-11-12 22:27:31,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:31,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:27:31,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:27:31,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:27:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 22:27:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 22:27:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-12 22:27:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:27:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-12 22:27:31,870 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-12 22:27:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:27:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 22:27:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:27:31,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:27:31,873 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 22:27:32,346 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:27:32,346 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:27:32,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:27:32 BoogieIcfgContainer [2021-11-12 22:27:32,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:27:32,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:27:32,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:27:32,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:27:32,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:27:30" (1/3) ... [2021-11-12 22:27:32,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2061309b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:27:32, skipping insertion in model container [2021-11-12 22:27:32,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:31" (2/3) ... [2021-11-12 22:27:32,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2061309b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:27:32, skipping insertion in model container [2021-11-12 22:27:32,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:27:32" (3/3) ... [2021-11-12 22:27:32,365 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_31-traces-mine-vs-mutex_true.i [2021-11-12 22:27:32,371 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 22:27:32,371 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:27:32,372 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:27:32,372 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 22:27:32,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,424 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,424 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,425 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,426 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,426 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,427 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,428 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,429 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,430 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,431 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,432 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,432 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,432 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,433 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,433 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,433 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,434 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,434 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,435 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,436 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,436 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,438 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,438 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,438 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,439 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,444 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,445 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,451 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,451 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,452 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:27:32,459 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-12 22:27:32,523 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:27:32,537 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 [2021-11-12 22:27:32,538 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 22:27:32,557 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 22:27:32,572 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 79 transitions, 166 flow [2021-11-12 22:27:32,576 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 79 transitions, 166 flow [2021-11-12 22:27:32,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 166 flow [2021-11-12 22:27:32,654 INFO L129 PetriNetUnfolder]: 1/78 cut-off events. [2021-11-12 22:27:32,654 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-12 22:27:32,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 78 events. 1/78 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2021-11-12 22:27:32,661 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2021-11-12 22:27:37,112 INFO L131 LiptonReduction]: Checked pairs total: 2617 [2021-11-12 22:27:37,112 INFO L133 LiptonReduction]: Total number of compositions: 67 [2021-11-12 22:27:37,122 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 22 transitions, 52 flow [2021-11-12 22:27:37,135 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65 states, 63 states have (on average 1.7777777777777777) internal successors, (112), 64 states have internal predecessors, (112), 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) [2021-11-12 22:27:37,137 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 63 states have (on average 1.7777777777777777) internal successors, (112), 64 states have internal predecessors, (112), 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) [2021-11-12 22:27:37,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 22:27:37,142 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:37,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:37,143 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 22:27:37,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:37,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1251762763, now seen corresponding path program 1 times [2021-11-12 22:27:37,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:27:37,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409149546] [2021-11-12 22:27:37,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:37,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:27:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:37,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:37,458 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:27:37,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409149546] [2021-11-12 22:27:37,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409149546] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:27:37,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:27:37,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 22:27:37,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006572216] [2021-11-12 22:27:37,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:37,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:27:37,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:27:37,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:27:37,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:27:37,508 INFO L87 Difference]: Start difference. First operand has 65 states, 63 states have (on average 1.7777777777777777) internal successors, (112), 64 states have internal predecessors, (112), 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, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-12 22:27:37,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:37,584 INFO L93 Difference]: Finished difference Result 62 states and 106 transitions. [2021-11-12 22:27:37,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:27:37,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-11-12 22:27:37,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:37,596 INFO L225 Difference]: With dead ends: 62 [2021-11-12 22:27:37,604 INFO L226 Difference]: Without dead ends: 53 [2021-11-12 22:27:37,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:27:37,610 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.27ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.83ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:37,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 4 Invalid, 24 Unknown, 0 Unchecked, 1.27ms Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 46.83ms Time] [2021-11-12 22:27:37,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-12 22:27:37,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-12 22:27:37,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.7115384615384615) internal successors, (89), 52 states have internal predecessors, (89), 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) [2021-11-12 22:27:37,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 89 transitions. [2021-11-12 22:27:37,667 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 89 transitions. Word has length 7 [2021-11-12 22:27:37,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:37,668 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 89 transitions. [2021-11-12 22:27:37,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-12 22:27:37,669 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 89 transitions. [2021-11-12 22:27:37,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-12 22:27:37,670 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:37,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:37,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 22:27:37,672 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 22:27:37,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:37,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1479157242, now seen corresponding path program 1 times [2021-11-12 22:27:37,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:27:37,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522326089] [2021-11-12 22:27:37,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:37,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:27:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:37,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:37,772 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:27:37,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522326089] [2021-11-12 22:27:37,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522326089] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:27:37,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:27:37,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 22:27:37,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077583409] [2021-11-12 22:27:37,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:37,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:27:37,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:27:37,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:27:37,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:27:37,776 INFO L87 Difference]: Start difference. First operand 53 states and 89 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-11-12 22:27:37,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:37,812 INFO L93 Difference]: Finished difference Result 45 states and 60 transitions. [2021-11-12 22:27:37,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:27:37,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2021-11-12 22:27:37,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:37,813 INFO L225 Difference]: With dead ends: 45 [2021-11-12 22:27:37,813 INFO L226 Difference]: Without dead ends: 43 [2021-11-12 22:27:37,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:27:37,815 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 3 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.47ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.46ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:37,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 1 Invalid, 35 Unknown, 0 Unchecked, 0.47ms Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 29.46ms Time] [2021-11-12 22:27:37,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-12 22:27:37,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2021-11-12 22:27:37,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 39 states have internal predecessors, (55), 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) [2021-11-12 22:27:37,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 55 transitions. [2021-11-12 22:27:37,823 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 55 transitions. Word has length 10 [2021-11-12 22:27:37,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:37,823 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 55 transitions. [2021-11-12 22:27:37,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-11-12 22:27:37,824 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2021-11-12 22:27:37,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 22:27:37,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:37,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:37,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 22:27:37,825 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 22:27:37,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:37,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1394875537, now seen corresponding path program 1 times [2021-11-12 22:27:37,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:27:37,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155803747] [2021-11-12 22:27:37,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:37,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:27:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:37,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:37,979 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:27:37,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155803747] [2021-11-12 22:27:37,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155803747] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:27:37,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:27:37,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 22:27:37,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679724179] [2021-11-12 22:27:37,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:37,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:27:37,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:27:37,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:27:37,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:27:37,985 INFO L87 Difference]: Start difference. First operand 40 states and 55 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-11-12 22:27:38,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:38,031 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2021-11-12 22:27:38,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:27:38,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2021-11-12 22:27:38,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:38,034 INFO L225 Difference]: With dead ends: 29 [2021-11-12 22:27:38,034 INFO L226 Difference]: Without dead ends: 28 [2021-11-12 22:27:38,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:27:38,039 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.08ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.80ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:38,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 35 Unknown, 0 Unchecked, 1.08ms Time], IncrementalHoareTripleChecker [13 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 39.80ms Time] [2021-11-12 22:27:38,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-12 22:27:38,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-12 22:27:38,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 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) [2021-11-12 22:27:38,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2021-11-12 22:27:38,056 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 11 [2021-11-12 22:27:38,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:38,057 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-11-12 22:27:38,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-11-12 22:27:38,057 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2021-11-12 22:27:38,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-12 22:27:38,060 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:38,060 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:38,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-12 22:27:38,061 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-12 22:27:38,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:38,062 INFO L85 PathProgramCache]: Analyzing trace with hash -299426961, now seen corresponding path program 1 times [2021-11-12 22:27:38,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:27:38,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025745495] [2021-11-12 22:27:38,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:38,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:27:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:38,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:27:38,166 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:27:38,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025745495] [2021-11-12 22:27:38,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025745495] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:27:38,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:27:38,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 22:27:38,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161548683] [2021-11-12 22:27:38,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:38,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:27:38,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:27:38,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:27:38,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:27:38,170 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-11-12 22:27:38,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:38,214 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2021-11-12 22:27:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:27:38,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-11-12 22:27:38,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:38,215 INFO L225 Difference]: With dead ends: 27 [2021-11-12 22:27:38,215 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 22:27:38,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:27:38,217 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.44ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.67ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:38,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 28 Unknown, 0 Unchecked, 0.44ms Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 40.67ms Time] [2021-11-12 22:27:38,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 22:27:38,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 22:27:38,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-12 22:27:38,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 22:27:38,219 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-11-12 22:27:38,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:38,219 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 22:27:38,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-11-12 22:27:38,220 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 22:27:38,220 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 22:27:38,222 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-12 22:27:38,223 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-11-12 22:27:38,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-12 22:27:38,225 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-12 22:27:38,227 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-12 22:27:38,228 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:27:38,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 10:27:38 BasicIcfg [2021-11-12 22:27:38,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 22:27:38,232 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 22:27:38,232 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 22:27:38,232 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 22:27:38,233 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:27:32" (3/4) ... [2021-11-12 22:27:38,236 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 22:27:38,243 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-12 22:27:38,249 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-12 22:27:38,249 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-12 22:27:38,249 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-12 22:27:38,250 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 22:27:38,290 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 22:27:38,290 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 22:27:38,291 INFO L158 Benchmark]: Toolchain (without parser) took 7492.93ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 76.2MB in the beginning and 116.6MB in the end (delta: -40.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:27:38,291 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory is still 94.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:27:38,292 INFO L158 Benchmark]: CACSL2BoogieTranslator took 802.51ms. Allocated memory is still 119.5MB. Free memory was 76.0MB in the beginning and 84.7MB in the end (delta: -8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:27:38,292 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.52ms. Allocated memory is still 119.5MB. Free memory was 84.7MB in the beginning and 82.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:27:38,293 INFO L158 Benchmark]: Boogie Preprocessor took 65.65ms. Allocated memory is still 119.5MB. Free memory was 82.6MB in the beginning and 81.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:27:38,293 INFO L158 Benchmark]: RCFGBuilder took 594.41ms. Allocated memory is still 119.5MB. Free memory was 81.4MB in the beginning and 69.3MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:27:38,294 INFO L158 Benchmark]: TraceAbstraction took 5879.93ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 68.8MB in the beginning and 119.7MB in the end (delta: -50.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:27:38,294 INFO L158 Benchmark]: Witness Printer took 58.79ms. Allocated memory is still 151.0MB. Free memory was 119.7MB in the beginning and 116.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:27:38,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory is still 94.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 802.51ms. Allocated memory is still 119.5MB. Free memory was 76.0MB in the beginning and 84.7MB in the end (delta: -8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.52ms. Allocated memory is still 119.5MB. Free memory was 84.7MB in the beginning and 82.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.65ms. Allocated memory is still 119.5MB. Free memory was 82.6MB in the beginning and 81.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 594.41ms. Allocated memory is still 119.5MB. Free memory was 81.4MB in the beginning and 69.3MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5879.93ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 68.8MB in the beginning and 119.7MB in the end (delta: -50.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 58.79ms. Allocated memory is still 151.0MB. Free memory was 119.7MB in the beginning and 116.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 82 PlacesBefore, 25 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 8 FixpointIterations, 34 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 67 TotalNumberOfCompositions, 2617 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1046, positive: 822, positive conditional: 0, positive unconditional: 822, negative: 224, negative conditional: 0, negative unconditional: 224, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 560, positive: 525, positive conditional: 0, positive unconditional: 525, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 560, positive: 482, positive conditional: 0, positive unconditional: 482, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 78, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 198, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 114, negative conditional: 0, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1046, positive: 297, positive conditional: 0, positive unconditional: 297, negative: 189, negative conditional: 0, negative unconditional: 189, unknown: 560, unknown conditional: 0, unknown unconditional: 560] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 37, Positive conditional cache size: 0, Positive unconditional cache size: 37, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 99 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 156.76ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 130.56ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 101 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 5 mSDtfsCounter, 101 mSolverCounterSat, 3.27ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-12 22:27:38,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22bb65da-5c2e-4039-95b8-a932fe7e1079/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE