./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_147c9a12-e968-4319-bdbd-c10c9270e3d1/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c9a12-e968-4319-bdbd-c10c9270e3d1/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c9a12-e968-4319-bdbd-c10c9270e3d1/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c9a12-e968-4319-bdbd-c10c9270e3d1/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c9a12-e968-4319-bdbd-c10c9270e3d1/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c9a12-e968-4319-bdbd-c10c9270e3d1/bin/utaipan-gh47qXpMRh --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 b6fd990ee5a3d1196da7f04012a4fa03f310aee567403c5800bf2a09c38760f5 --- 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-2329fc7 [2022-12-14 06:12:13,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:12:13,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:12:13,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:12:13,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:12:13,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:12:13,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:12:13,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:12:13,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:12:13,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:12:13,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:12:13,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:12:13,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:12:13,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:12:13,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:12:13,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:12:13,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:12:13,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:12:13,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:12:13,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:12:13,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:12:13,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:12:13,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:12:13,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:12:13,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:12:13,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:12:13,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:12:13,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:12:13,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:12:13,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:12:13,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:12:13,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:12:13,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:12:13,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:12:13,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:12:13,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:12:13,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:12:13,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:12:13,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:12:13,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:12:13,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:12:13,597 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c9a12-e968-4319-bdbd-c10c9270e3d1/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:12:13,610 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:12:13,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:12:13,617 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:12:13,617 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:12:13,617 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:12:13,617 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:12:13,618 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:12:13,618 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:12:13,618 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:12:13,618 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:12:13,618 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:12:13,618 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:12:13,618 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:12:13,618 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:12:13,619 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:12:13,619 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:12:13,619 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:12:13,619 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:12:13,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:12:13,620 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:12:13,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:12:13,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:12:13,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:12:13,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:12:13,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:12:13,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:12:13,620 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:12:13,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:12:13,621 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:12:13,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:12:13,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:12:13,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:12:13,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:12:13,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:12:13,621 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:12:13,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:12:13,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:12:13,622 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:12:13,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:12:13,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:12:13,622 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:12:13,622 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_147c9a12-e968-4319-bdbd-c10c9270e3d1/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c9a12-e968-4319-bdbd-c10c9270e3d1/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6fd990ee5a3d1196da7f04012a4fa03f310aee567403c5800bf2a09c38760f5 [2022-12-14 06:12:13,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:12:13,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:12:13,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:12:13,804 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:12:13,805 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:12:13,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c9a12-e968-4319-bdbd-c10c9270e3d1/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-2.c [2022-12-14 06:12:16,481 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:12:16,771 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:12:16,771 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c9a12-e968-4319-bdbd-c10c9270e3d1/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-2.c [2022-12-14 06:12:16,790 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c9a12-e968-4319-bdbd-c10c9270e3d1/bin/utaipan-gh47qXpMRh/data/a8cc7e020/210c807412ba4bc7afef6635da30e852/FLAG4ba64cc0f [2022-12-14 06:12:16,801 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c9a12-e968-4319-bdbd-c10c9270e3d1/bin/utaipan-gh47qXpMRh/data/a8cc7e020/210c807412ba4bc7afef6635da30e852 [2022-12-14 06:12:16,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:12:16,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:12:16,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:12:16,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:12:16,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:12:16,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:12:16" (1/1) ... [2022-12-14 06:12:16,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7caf2d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:12:16, skipping insertion in model container [2022-12-14 06:12:16,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:12:16" (1/1) ... [2022-12-14 06:12:16,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:12:16,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:12:17,117 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_147c9a12-e968-4319-bdbd-c10c9270e3d1/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-2.c[2215,2228] [2022-12-14 06:12:17,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:12:17,599 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:12:17,609 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_147c9a12-e968-4319-bdbd-c10c9270e3d1/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-2.c[2215,2228] [2022-12-14 06:12:17,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:12:17,938 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:12:17,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:12:17 WrapperNode [2022-12-14 06:12:17,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:12:17,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:12:17,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:12:17,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:12:17,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:12:17" (1/1) ... [2022-12-14 06:12:18,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:12:17" (1/1) ... [2022-12-14 06:12:18,323 INFO L138 Inliner]: procedures = 101, calls = 6644, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 21123 [2022-12-14 06:12:18,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:12:18,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:12:18,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:12:18,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:12:18,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:12:17" (1/1) ... [2022-12-14 06:12:18,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:12:17" (1/1) ... [2022-12-14 06:12:18,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:12:17" (1/1) ... [2022-12-14 06:12:18,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:12:17" (1/1) ... [2022-12-14 06:12:18,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:12:17" (1/1) ... [2022-12-14 06:12:18,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:12:17" (1/1) ... [2022-12-14 06:12:18,777 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:12:17" (1/1) ... [2022-12-14 06:12:18,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:12:17" (1/1) ... [2022-12-14 06:12:18,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:12:18,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:12:18,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:12:18,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:12:18,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:12:17" (1/1) ... [2022-12-14 06:12:18,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:12:18,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c9a12-e968-4319-bdbd-c10c9270e3d1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:12:18,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c9a12-e968-4319-bdbd-c10c9270e3d1/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:12:18,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c9a12-e968-4319-bdbd-c10c9270e3d1/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:12:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-12-14 06:12:18,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-12-14 06:12:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-12-14 06:12:18,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-12-14 06:12:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:12:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-12-14 06:12:18,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-12-14 06:12:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-14 06:12:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-14 06:12:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-12-14 06:12:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-12-14 06:12:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-12-14 06:12:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-12-14 06:12:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-12-14 06:12:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-12-14 06:12:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-12-14 06:12:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-12-14 06:12:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-12-14 06:12:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-12-14 06:12:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:12:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-14 06:12:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-14 06:12:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-12-14 06:12:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-12-14 06:12:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-12-14 06:12:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-12-14 06:12:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-12-14 06:12:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-12-14 06:12:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-12-14 06:12:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-12-14 06:12:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-12-14 06:12:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-12-14 06:12:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-14 06:12:18,935 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-14 06:12:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:12:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-14 06:12:18,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-14 06:12:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-12-14 06:12:18,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-12-14 06:12:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-12-14 06:12:18,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-12-14 06:12:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-12-14 06:12:18,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-12-14 06:12:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-14 06:12:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-14 06:12:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-12-14 06:12:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-12-14 06:12:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-14 06:12:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-14 06:12:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-12-14 06:12:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-12-14 06:12:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-12-14 06:12:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-12-14 06:12:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-12-14 06:12:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-12-14 06:12:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-12-14 06:12:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-12-14 06:12:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-12-14 06:12:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-12-14 06:12:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-12-14 06:12:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-12-14 06:12:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-12-14 06:12:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-12-14 06:12:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-12-14 06:12:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-12-14 06:12:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-12-14 06:12:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-12-14 06:12:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-12-14 06:12:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-12-14 06:12:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-12-14 06:12:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-12-14 06:12:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-12-14 06:12:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-12-14 06:12:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-12-14 06:12:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-12-14 06:12:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-12-14 06:12:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-12-14 06:12:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-12-14 06:12:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-12-14 06:12:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-12-14 06:12:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-12-14 06:12:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-12-14 06:12:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-12-14 06:12:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-12-14 06:12:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-12-14 06:12:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-12-14 06:12:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-12-14 06:12:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-12-14 06:12:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-12-14 06:12:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:12:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-12-14 06:12:18,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-12-14 06:12:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:12:18,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:12:19,670 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:12:19,672 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:13:36,273 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:20:09,513 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:20:09,513 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 06:20:09,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:20:09 BoogieIcfgContainer [2022-12-14 06:20:09,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:20:09,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:20:09,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:20:09,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:20:09,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:12:16" (1/3) ... [2022-12-14 06:20:09,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17203373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:20:09, skipping insertion in model container [2022-12-14 06:20:09,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:12:17" (2/3) ... [2022-12-14 06:20:09,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17203373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:20:09, skipping insertion in model container [2022-12-14 06:20:09,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:20:09" (3/3) ... [2022-12-14 06:20:09,522 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_ctm.2-2.c [2022-12-14 06:20:09,536 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:20:09,536 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:20:09,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:20:09,593 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;@55acd7c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:20:09,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:20:09,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 1090 states, 702 states have (on average 1.3732193732193732) internal successors, (964), 726 states have internal predecessors, (964), 342 states have call successors, (342), 44 states have call predecessors, (342), 44 states have return successors, (342), 332 states have call predecessors, (342), 342 states have call successors, (342) [2022-12-14 06:20:09,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 06:20:09,625 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:20:09,625 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:20:09,625 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:20:09,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:20:09,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1394271142, now seen corresponding path program 1 times [2022-12-14 06:20:09,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:20:09,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032904479] [2022-12-14 06:20:09,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:20:09,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms