./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d335cf1d-fb8e-4112-9697-a7fbcdba946e/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d335cf1d-fb8e-4112-9697-a7fbcdba946e/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d335cf1d-fb8e-4112-9697-a7fbcdba946e/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d335cf1d-fb8e-4112-9697-a7fbcdba946e/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d335cf1d-fb8e-4112-9697-a7fbcdba946e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d335cf1d-fb8e-4112-9697-a7fbcdba946e/bin/utaipan-Q6hlc19bkW --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 c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 --- 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-4e7fbc6 [2022-11-23 15:43:24,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:43:24,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:43:24,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:43:24,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:43:24,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:43:24,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:43:24,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:43:24,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:43:24,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:43:24,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:43:24,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:43:24,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:43:24,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:43:24,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:43:24,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:43:24,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:43:24,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:43:24,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:43:24,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:43:24,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:43:24,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:43:24,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:43:24,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:43:24,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:43:24,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:43:24,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:43:24,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:43:24,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:43:24,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:43:24,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:43:24,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:43:24,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:43:24,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:43:24,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:43:24,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:43:24,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:43:24,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:43:24,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:43:24,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:43:24,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:43:24,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d335cf1d-fb8e-4112-9697-a7fbcdba946e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:43:24,625 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:43:24,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:43:24,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:43:24,626 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:43:24,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:43:24,627 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:43:24,627 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:43:24,627 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:43:24,628 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:43:24,628 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:43:24,628 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:43:24,628 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:43:24,629 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:43:24,629 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:43:24,629 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:43:24,629 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:43:24,630 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:43:24,630 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:43:24,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:43:24,631 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:43:24,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:43:24,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:43:24,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:43:24,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:43:24,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:43:24,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:43:24,632 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:43:24,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:43:24,633 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:43:24,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:43:24,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:43:24,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:43:24,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:43:24,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:43:24,634 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:43:24,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:43:24,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:43:24,635 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:43:24,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:43:24,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:43:24,635 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:43:24,636 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_d335cf1d-fb8e-4112-9697-a7fbcdba946e/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d335cf1d-fb8e-4112-9697-a7fbcdba946e/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 [2022-11-23 15:43:24,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:43:25,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:43:25,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:43:25,015 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:43:25,016 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:43:25,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d335cf1d-fb8e-4112-9697-a7fbcdba946e/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2022-11-23 15:43:28,063 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:43:28,509 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:43:28,510 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d335cf1d-fb8e-4112-9697-a7fbcdba946e/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2022-11-23 15:43:28,565 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d335cf1d-fb8e-4112-9697-a7fbcdba946e/bin/utaipan-Q6hlc19bkW/data/87d80a4c8/cf9decce9de44278bfff66c307aabec1/FLAG3bdc5fea2 [2022-11-23 15:43:28,595 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d335cf1d-fb8e-4112-9697-a7fbcdba946e/bin/utaipan-Q6hlc19bkW/data/87d80a4c8/cf9decce9de44278bfff66c307aabec1 [2022-11-23 15:43:28,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:43:28,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:43:28,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:43:28,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:43:28,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:43:28,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:43:28" (1/1) ... [2022-11-23 15:43:28,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3490e99c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:28, skipping insertion in model container [2022-11-23 15:43:28,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:43:28" (1/1) ... [2022-11-23 15:43:28,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:43:28,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:43:28,913 WARN L237 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_d335cf1d-fb8e-4112-9697-a7fbcdba946e/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2022-11-23 15:43:29,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:43:29,551 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:43:29,568 WARN L237 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_d335cf1d-fb8e-4112-9697-a7fbcdba946e/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2022-11-23 15:43:29,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:43:29,921 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:43:29,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:29 WrapperNode [2022-11-23 15:43:29,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:43:29,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:43:29,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:43:29,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:43:29,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:29" (1/1) ... [2022-11-23 15:43:29,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:29" (1/1) ... [2022-11-23 15:43:30,200 INFO L138 Inliner]: procedures = 99, calls = 2727, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8247 [2022-11-23 15:43:30,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:43:30,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:43:30,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:43:30,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:43:30,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:29" (1/1) ... [2022-11-23 15:43:30,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:29" (1/1) ... [2022-11-23 15:43:30,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:29" (1/1) ... [2022-11-23 15:43:30,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:29" (1/1) ... [2022-11-23 15:43:30,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:29" (1/1) ... [2022-11-23 15:43:30,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:29" (1/1) ... [2022-11-23 15:43:30,546 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:29" (1/1) ... [2022-11-23 15:43:30,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:29" (1/1) ... [2022-11-23 15:43:30,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:43:30,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:43:30,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:43:30,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:43:30,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:29" (1/1) ... [2022-11-23 15:43:30,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:43:30,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d335cf1d-fb8e-4112-9697-a7fbcdba946e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:43:30,625 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d335cf1d-fb8e-4112-9697-a7fbcdba946e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:43:30,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d335cf1d-fb8e-4112-9697-a7fbcdba946e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:43:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-23 15:43:30,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-23 15:43:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-23 15:43:30,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-23 15:43:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:43:30,686 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-23 15:43:30,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-23 15:43:30,686 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-23 15:43:30,686 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-23 15:43:30,686 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-23 15:43:30,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-23 15:43:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-23 15:43:30,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-23 15:43:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-23 15:43:30,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-23 15:43:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-23 15:43:30,688 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-23 15:43:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-23 15:43:30,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-23 15:43:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-23 15:43:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-23 15:43:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:43:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-23 15:43:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-23 15:43:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-23 15:43:30,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-23 15:43:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-23 15:43:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-23 15:43:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-23 15:43:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-23 15:43:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-23 15:43:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-23 15:43:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-23 15:43:30,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-23 15:43:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-23 15:43:30,693 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-23 15:43:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:43:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-23 15:43:30,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-23 15:43:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-23 15:43:30,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-23 15:43:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-23 15:43:30,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-23 15:43:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-23 15:43:30,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-23 15:43:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-23 15:43:30,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-23 15:43:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-23 15:43:30,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-23 15:43:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-23 15:43:30,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-23 15:43:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-23 15:43:30,697 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-23 15:43:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-23 15:43:30,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-23 15:43:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-23 15:43:30,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-23 15:43:30,699 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-23 15:43:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-23 15:43:30,699 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-23 15:43:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-23 15:43:30,699 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-23 15:43:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-23 15:43:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-23 15:43:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-23 15:43:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-23 15:43:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-23 15:43:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-23 15:43:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-23 15:43:30,701 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-23 15:43:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-23 15:43:30,701 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-23 15:43:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-23 15:43:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-23 15:43:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-23 15:43:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-23 15:43:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-23 15:43:30,703 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-23 15:43:30,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-23 15:43:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-23 15:43:30,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-23 15:43:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-23 15:43:30,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-23 15:43:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-23 15:43:30,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-23 15:43:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-23 15:43:30,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-23 15:43:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-23 15:43:30,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-23 15:43:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:43:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-23 15:43:30,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-23 15:43:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:43:30,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:43:31,315 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:43:31,318 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:43:47,385 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:43:56,659 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:43:56,659 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-23 15:43:56,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:56 BoogieIcfgContainer [2022-11-23 15:43:56,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:43:56,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:43:56,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:43:56,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:43:56,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:43:28" (1/3) ... [2022-11-23 15:43:56,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b95e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:43:56, skipping insertion in model container [2022-11-23 15:43:56,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:29" (2/3) ... [2022-11-23 15:43:56,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b95e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:43:56, skipping insertion in model container [2022-11-23 15:43:56,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:56" (3/3) ... [2022-11-23 15:43:56,682 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.1.c [2022-11-23 15:43:56,704 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:43:56,704 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:43:56,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:43:56,826 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;@726223cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:43:56,828 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:43:56,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 962 states, 611 states have (on average 1.386252045826514) internal successors, (847), 635 states have internal predecessors, (847), 305 states have call successors, (305), 44 states have call predecessors, (305), 44 states have return successors, (305), 295 states have call predecessors, (305), 305 states have call successors, (305) [2022-11-23 15:43:56,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 15:43:56,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:43:56,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:43:56,864 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:43:56,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:43:56,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1110822853, now seen corresponding path program 1 times [2022-11-23 15:43:56,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:43:56,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262158195] [2022-11-23 15:43:56,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:43:56,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms