./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/bin/utaipan-eEHZpOm5b7 --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 20976b2d8a648a632a55cb7b6a072d8c835d658a3592a366af91723667ead694 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:04:47,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:04:47,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:04:47,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:04:47,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:04:47,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:04:47,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:04:47,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:04:47,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:04:47,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:04:47,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:04:47,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:04:47,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:04:47,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:04:47,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:04:47,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:04:47,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:04:47,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:04:47,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:04:47,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:04:47,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:04:47,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:04:47,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:04:47,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:04:47,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:04:47,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:04:47,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:04:47,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:04:47,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:04:47,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:04:47,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:04:47,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:04:47,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:04:47,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:04:47,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:04:47,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:04:47,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:04:47,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:04:47,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:04:47,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:04:47,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:04:47,473 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 20:04:47,525 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:04:47,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:04:47,536 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:04:47,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:04:47,537 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:04:47,538 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:04:47,538 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:04:47,538 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:04:47,539 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:04:47,539 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:04:47,540 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:04:47,541 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:04:47,541 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:04:47,541 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:04:47,541 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:04:47,542 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:04:47,542 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:04:47,542 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:04:47,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:04:47,543 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:04:47,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:04:47,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:04:47,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:04:47,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:04:47,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:04:47,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:04:47,547 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:04:47,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:04:47,547 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:04:47,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:04:47,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:04:47,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:04:47,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:04:47,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:04:47,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:04:47,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:04:47,549 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:04:47,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:04:47,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:04:47,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:04:47,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:04:47,550 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_d53714da-0e26-4838-b2ad-6ab3be550349/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20976b2d8a648a632a55cb7b6a072d8c835d658a3592a366af91723667ead694 [2021-11-25 20:04:47,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:04:47,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:04:47,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:04:47,865 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:04:47,866 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:04:47,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2021-11-25 20:04:47,940 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/bin/utaipan-eEHZpOm5b7/data/5bd595e0c/c0d75b9a859e44878fe0d3a34ca8ee51/FLAG0b56fca20 [2021-11-25 20:04:48,705 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:04:48,706 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2021-11-25 20:04:48,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/bin/utaipan-eEHZpOm5b7/data/5bd595e0c/c0d75b9a859e44878fe0d3a34ca8ee51/FLAG0b56fca20 [2021-11-25 20:04:48,794 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/bin/utaipan-eEHZpOm5b7/data/5bd595e0c/c0d75b9a859e44878fe0d3a34ca8ee51 [2021-11-25 20:04:48,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:04:48,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:04:48,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:04:48,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:04:48,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:04:48,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:04:48" (1/1) ... [2021-11-25 20:04:48,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@be6ae02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:48, skipping insertion in model container [2021-11-25 20:04:48,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:04:48" (1/1) ... [2021-11-25 20:04:48,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:04:48,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:04:49,273 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c[1807,1820] [2021-11-25 20:04:49,981 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:04:49,995 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:04:50,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c[1807,1820] [2021-11-25 20:04:50,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:04:50,384 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:04:50,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:50 WrapperNode [2021-11-25 20:04:50,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:04:50,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:04:50,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:04:50,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:04:50,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:50" (1/1) ... [2021-11-25 20:04:50,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:50" (1/1) ... [2021-11-25 20:04:51,017 INFO L137 Inliner]: procedures = 70, calls = 5237, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 9803 [2021-11-25 20:04:51,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:04:51,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:04:51,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:04:51,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:04:51,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:50" (1/1) ... [2021-11-25 20:04:51,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:50" (1/1) ... [2021-11-25 20:04:51,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:50" (1/1) ... [2021-11-25 20:04:51,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:50" (1/1) ... [2021-11-25 20:04:51,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:50" (1/1) ... [2021-11-25 20:04:51,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:50" (1/1) ... [2021-11-25 20:04:51,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:50" (1/1) ... [2021-11-25 20:04:51,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:04:51,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:04:51,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:04:51,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:04:51,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:50" (1/1) ... [2021-11-25 20:04:51,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:04:51,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:04:51,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:04:51,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53714da-0e26-4838-b2ad-6ab3be550349/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:04:51,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:04:51,626 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2021-11-25 20:04:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2021-11-25 20:04:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2021-11-25 20:04:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2021-11-25 20:04:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-11-25 20:04:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-11-25 20:04:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-11-25 20:04:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-11-25 20:04:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:04:51,628 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-11-25 20:04:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-11-25 20:04:51,628 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-11-25 20:04:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-11-25 20:04:51,628 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-11-25 20:04:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-11-25 20:04:51,628 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-11-25 20:04:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-11-25 20:04:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:04:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-11-25 20:04:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-11-25 20:04:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-11-25 20:04:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-11-25 20:04:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2021-11-25 20:04:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2021-11-25 20:04:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-11-25 20:04:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-11-25 20:04:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-11-25 20:04:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-11-25 20:04:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-11-25 20:04:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-11-25 20:04:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-11-25 20:04:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-11-25 20:04:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:04:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-11-25 20:04:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-11-25 20:04:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:04:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-11-25 20:04:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-11-25 20:04:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-11-25 20:04:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-11-25 20:04:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2021-11-25 20:04:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2021-11-25 20:04:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-11-25 20:04:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-11-25 20:04:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 20:04:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 20:04:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:04:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:04:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:04:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-11-25 20:04:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-11-25 20:04:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-11-25 20:04:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-11-25 20:04:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-11-25 20:04:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-11-25 20:04:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2021-11-25 20:04:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2021-11-25 20:04:52,468 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:04:52,518 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:05:10,796 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:05:11,341 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:05:11,341 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 20:05:11,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:05:11 BoogieIcfgContainer [2021-11-25 20:05:11,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:05:11,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:05:11,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:05:11,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:05:11,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:04:48" (1/3) ... [2021-11-25 20:05:11,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd046f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:05:11, skipping insertion in model container [2021-11-25 20:05:11,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:04:50" (2/3) ... [2021-11-25 20:05:11,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd046f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:05:11, skipping insertion in model container [2021-11-25 20:05:11,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:05:11" (3/3) ... [2021-11-25 20:05:11,360 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M4-2.c [2021-11-25 20:05:11,368 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:05:11,368 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 20:05:11,444 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:05:11,456 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 [2021-11-25 20:05:11,456 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 20:05:11,573 INFO L276 IsEmpty]: Start isEmpty. Operand has 3528 states, 1993 states have (on average 1.1655795283492223) internal successors, (2323), 1998 states have internal predecessors, (2323), 1508 states have call successors, (1508), 25 states have call predecessors, (1508), 25 states have return successors, (1508), 1506 states have call predecessors, (1508), 1508 states have call successors, (1508) [2021-11-25 20:05:11,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 954 [2021-11-25 20:05:11,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:11,668 INFO L514 BasicCegarLoop]: trace histogram [210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:05:11,669 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:05:11,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:11,677 INFO L85 PathProgramCache]: Analyzing trace with hash 367224268, now seen corresponding path program 1 times [2021-11-25 20:05:11,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:11,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009807138] [2021-11-25 20:05:11,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:11,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms