./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/bin/utaipan-Xvt2sAort0 --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 2d62eb188ec8009366dfdca221ff91e65711c28198c7f8ea6438b1bcf863cd3f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 15:54:05,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 15:54:05,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 15:54:05,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 15:54:05,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 15:54:05,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 15:54:05,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 15:54:05,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 15:54:05,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 15:54:05,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 15:54:05,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 15:54:05,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 15:54:05,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 15:54:05,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 15:54:05,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 15:54:05,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 15:54:05,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 15:54:05,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 15:54:05,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 15:54:05,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 15:54:05,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 15:54:05,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 15:54:05,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 15:54:05,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 15:54:05,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 15:54:05,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 15:54:05,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 15:54:05,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 15:54:05,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 15:54:05,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 15:54:05,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 15:54:05,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 15:54:05,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 15:54:05,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 15:54:05,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 15:54:05,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 15:54:05,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 15:54:05,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 15:54:05,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 15:54:05,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 15:54:05,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 15:54:05,769 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 15:54:05,812 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 15:54:05,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 15:54:05,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 15:54:05,813 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 15:54:05,814 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 15:54:05,814 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 15:54:05,814 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 15:54:05,814 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 15:54:05,815 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 15:54:05,815 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 15:54:05,815 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 15:54:05,815 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 15:54:05,815 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 15:54:05,816 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 15:54:05,816 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 15:54:05,816 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 15:54:05,816 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 15:54:05,817 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 15:54:05,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 15:54:05,818 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 15:54:05,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 15:54:05,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 15:54:05,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 15:54:05,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 15:54:05,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 15:54:05,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 15:54:05,819 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 15:54:05,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 15:54:05,820 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 15:54:05,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 15:54:05,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 15:54:05,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 15:54:05,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:54:05,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 15:54:05,821 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 15:54:05,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 15:54:05,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 15:54:05,822 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 15:54:05,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 15:54:05,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 15:54:05,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 15:54:05,823 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d62eb188ec8009366dfdca221ff91e65711c28198c7f8ea6438b1bcf863cd3f [2022-11-16 15:54:06,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 15:54:06,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 15:54:06,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 15:54:06,193 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 15:54:06,194 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 15:54:06,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c [2022-11-16 15:54:06,281 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/bin/utaipan-Xvt2sAort0/data/638e11f9a/dd0c0d5379b84ee9aeccf8283b43adb1/FLAG9aed86073 [2022-11-16 15:54:07,348 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 15:54:07,349 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c [2022-11-16 15:54:07,400 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/bin/utaipan-Xvt2sAort0/data/638e11f9a/dd0c0d5379b84ee9aeccf8283b43adb1/FLAG9aed86073 [2022-11-16 15:54:07,696 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/bin/utaipan-Xvt2sAort0/data/638e11f9a/dd0c0d5379b84ee9aeccf8283b43adb1 [2022-11-16 15:54:07,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 15:54:07,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 15:54:07,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 15:54:07,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 15:54:07,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 15:54:07,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:54:07" (1/1) ... [2022-11-16 15:54:07,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9438395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:07, skipping insertion in model container [2022-11-16 15:54:07,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:54:07" (1/1) ... [2022-11-16 15:54:07,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 15:54:07,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 15:54:08,329 WARN L229 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_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c[2836,2849] [2022-11-16 15:54:09,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:54:09,693 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 15:54:09,725 WARN L229 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_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c[2836,2849] [2022-11-16 15:54:10,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:54:10,940 INFO L208 MainTranslator]: Completed translation [2022-11-16 15:54:10,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:10 WrapperNode [2022-11-16 15:54:10,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 15:54:10,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 15:54:10,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 15:54:10,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 15:54:10,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:10" (1/1) ... [2022-11-16 15:54:11,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:10" (1/1) ... [2022-11-16 15:54:13,141 INFO L138 Inliner]: procedures = 63, calls = 19673, calls flagged for inlining = 22, calls inlined = 22, statements flattened = 42427 [2022-11-16 15:54:13,142 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 15:54:13,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 15:54:13,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 15:54:13,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 15:54:13,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:10" (1/1) ... [2022-11-16 15:54:13,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:10" (1/1) ... [2022-11-16 15:54:13,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:10" (1/1) ... [2022-11-16 15:54:13,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:10" (1/1) ... [2022-11-16 15:54:14,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:10" (1/1) ... [2022-11-16 15:54:15,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:10" (1/1) ... [2022-11-16 15:54:15,081 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:10" (1/1) ... [2022-11-16 15:54:15,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:10" (1/1) ... [2022-11-16 15:54:15,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 15:54:15,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 15:54:15,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 15:54:15,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 15:54:15,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:10" (1/1) ... [2022-11-16 15:54:15,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:54:15,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:54:15,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 15:54:15,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2bbe8bd-1a42-4b2a-875d-f467b3e3ab77/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 15:54:15,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 15:54:15,615 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-11-16 15:54:15,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-11-16 15:54:15,615 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-16 15:54:15,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-16 15:54:15,616 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-16 15:54:15,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-16 15:54:15,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 15:54:15,616 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-16 15:54:15,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-16 15:54:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-16 15:54:15,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-16 15:54:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-16 15:54:15,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-16 15:54:15,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 15:54:15,618 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-16 15:54:15,618 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-16 15:54:15,618 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-16 15:54:15,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-16 15:54:15,619 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-11-16 15:54:15,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-11-16 15:54:15,619 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-16 15:54:15,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-16 15:54:15,619 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-16 15:54:15,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-16 15:54:15,620 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-16 15:54:15,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-16 15:54:15,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 15:54:15,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 15:54:15,621 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-16 15:54:15,621 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-16 15:54:15,621 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-16 15:54:15,621 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-16 15:54:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-11-16 15:54:15,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-11-16 15:54:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-11-16 15:54:15,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-11-16 15:54:15,623 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 15:54:15,623 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 15:54:15,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 15:54:15,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 15:54:15,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 15:54:15,624 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-16 15:54:15,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-16 15:54:15,625 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-16 15:54:15,625 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-16 15:54:15,626 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-16 15:54:15,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-16 15:54:15,627 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-11-16 15:54:15,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-11-16 15:54:18,245 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 15:54:18,248 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 15:55:43,397 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 15:55:45,976 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 15:55:45,977 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 15:55:45,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:55:45 BoogieIcfgContainer [2022-11-16 15:55:45,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 15:55:45,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 15:55:45,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 15:55:46,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 15:55:46,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:54:07" (1/3) ... [2022-11-16 15:55:46,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37492bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:55:46, skipping insertion in model container [2022-11-16 15:55:46,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:10" (2/3) ... [2022-11-16 15:55:46,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37492bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:55:46, skipping insertion in model container [2022-11-16 15:55:46,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:55:45" (3/3) ... [2022-11-16 15:55:46,009 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_aso.2.M4-1.c [2022-11-16 15:55:46,046 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 15:55:46,046 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 15:55:46,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 15:55:46,394 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7239a8d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 15:55:46,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 15:55:46,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 12804 states, 8264 states have (on average 1.306026137463698) internal successors, (10793), 8376 states have internal predecessors, (10793), 4517 states have call successors, (4517), 21 states have call predecessors, (4517), 21 states have return successors, (4517), 4515 states have call predecessors, (4517), 4517 states have call successors, (4517) [2022-11-16 15:55:47,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4794 [2022-11-16 15:55:47,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:55:47,220 INFO L195 NwaCegarLoop]: trace histogram [551, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:55:47,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:55:47,230 INFO L85 PathProgramCache]: Analyzing trace with hash -644012975, now seen corresponding path program 1 times [2022-11-16 15:55:47,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:55:47,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405621078] [2022-11-16 15:55:47,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:55:47,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms