./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_01f55fe0-3e16-443d-9a8f-76e8261af479/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f55fe0-3e16-443d-9a8f-76e8261af479/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f55fe0-3e16-443d-9a8f-76e8261af479/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f55fe0-3e16-443d-9a8f-76e8261af479/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f55fe0-3e16-443d-9a8f-76e8261af479/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f55fe0-3e16-443d-9a8f-76e8261af479/bin/utaipan-6cKwYrpEi9 --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 a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 --- 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-6b4ec56 [2022-11-20 19:44:53,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 19:44:53,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 19:44:54,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 19:44:54,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 19:44:54,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 19:44:54,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 19:44:54,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 19:44:54,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 19:44:54,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 19:44:54,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 19:44:54,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 19:44:54,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 19:44:54,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 19:44:54,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 19:44:54,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 19:44:54,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 19:44:54,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 19:44:54,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 19:44:54,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 19:44:54,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 19:44:54,060 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 19:44:54,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 19:44:54,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 19:44:54,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 19:44:54,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 19:44:54,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 19:44:54,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 19:44:54,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 19:44:54,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 19:44:54,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 19:44:54,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 19:44:54,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 19:44:54,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 19:44:54,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 19:44:54,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 19:44:54,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 19:44:54,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 19:44:54,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 19:44:54,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 19:44:54,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 19:44:54,079 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f55fe0-3e16-443d-9a8f-76e8261af479/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 19:44:54,100 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 19:44:54,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 19:44:54,101 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 19:44:54,101 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 19:44:54,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 19:44:54,102 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 19:44:54,102 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 19:44:54,103 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 19:44:54,103 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 19:44:54,103 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 19:44:54,103 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 19:44:54,104 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 19:44:54,104 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 19:44:54,104 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 19:44:54,104 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 19:44:54,105 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 19:44:54,105 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 19:44:54,105 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 19:44:54,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 19:44:54,106 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 19:44:54,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 19:44:54,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 19:44:54,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 19:44:54,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 19:44:54,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 19:44:54,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 19:44:54,108 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 19:44:54,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 19:44:54,109 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 19:44:54,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 19:44:54,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 19:44:54,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 19:44:54,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:44:54,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 19:44:54,110 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 19:44:54,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 19:44:54,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 19:44:54,111 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 19:44:54,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 19:44:54,111 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 19:44:54,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 19:44:54,112 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_01f55fe0-3e16-443d-9a8f-76e8261af479/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f55fe0-3e16-443d-9a8f-76e8261af479/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 [2022-11-20 19:44:54,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 19:44:54,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 19:44:54,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 19:44:54,419 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 19:44:54,420 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 19:44:54,421 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f55fe0-3e16-443d-9a8f-76e8261af479/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2022-11-20 19:44:57,547 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 19:44:58,069 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 19:44:58,070 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f55fe0-3e16-443d-9a8f-76e8261af479/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2022-11-20 19:44:58,093 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f55fe0-3e16-443d-9a8f-76e8261af479/bin/utaipan-6cKwYrpEi9/data/057a05824/89b0989c5c984bd6b11f72541838861d/FLAG50ca51ce8 [2022-11-20 19:44:58,114 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f55fe0-3e16-443d-9a8f-76e8261af479/bin/utaipan-6cKwYrpEi9/data/057a05824/89b0989c5c984bd6b11f72541838861d [2022-11-20 19:44:58,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 19:44:58,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 19:44:58,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 19:44:58,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 19:44:58,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 19:44:58,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:44:58" (1/1) ... [2022-11-20 19:44:58,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d587de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:44:58, skipping insertion in model container [2022-11-20 19:44:58,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:44:58" (1/1) ... [2022-11-20 19:44:58,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 19:44:58,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 19:44:58,420 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_01f55fe0-3e16-443d-9a8f-76e8261af479/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c[1871,1884] [2022-11-20 19:44:59,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:44:59,148 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 19:44:59,169 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_01f55fe0-3e16-443d-9a8f-76e8261af479/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c[1871,1884] [2022-11-20 19:44:59,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:44:59,504 INFO L208 MainTranslator]: Completed translation [2022-11-20 19:44:59,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:44:59 WrapperNode [2022-11-20 19:44:59,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 19:44:59,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 19:44:59,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 19:44:59,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 19:44:59,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:44:59" (1/1) ... [2022-11-20 19:44:59,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:44:59" (1/1) ... [2022-11-20 19:44:59,888 INFO L138 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2022-11-20 19:44:59,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 19:44:59,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 19:44:59,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 19:44:59,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 19:44:59,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:44:59" (1/1) ... [2022-11-20 19:44:59,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:44:59" (1/1) ... [2022-11-20 19:44:59,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:44:59" (1/1) ... [2022-11-20 19:44:59,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:44:59" (1/1) ... [2022-11-20 19:45:00,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:44:59" (1/1) ... [2022-11-20 19:45:00,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:44:59" (1/1) ... [2022-11-20 19:45:00,151 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:44:59" (1/1) ... [2022-11-20 19:45:00,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:44:59" (1/1) ... [2022-11-20 19:45:00,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 19:45:00,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 19:45:00,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 19:45:00,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 19:45:00,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:44:59" (1/1) ... [2022-11-20 19:45:00,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:45:00,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f55fe0-3e16-443d-9a8f-76e8261af479/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:45:00,247 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f55fe0-3e16-443d-9a8f-76e8261af479/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 19:45:00,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f55fe0-3e16-443d-9a8f-76e8261af479/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 19:45:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-20 19:45:00,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-20 19:45:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-20 19:45:00,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-20 19:45:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 19:45:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-20 19:45:00,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-20 19:45:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-20 19:45:00,299 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-20 19:45:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-20 19:45:00,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-20 19:45:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-20 19:45:00,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-20 19:45:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-20 19:45:00,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-20 19:45:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-20 19:45:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-20 19:45:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-20 19:45:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-20 19:45:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-20 19:45:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-20 19:45:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 19:45:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-20 19:45:00,303 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-20 19:45:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-20 19:45:00,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-20 19:45:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-20 19:45:00,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-20 19:45:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-20 19:45:00,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-20 19:45:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-20 19:45:00,374 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-20 19:45:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-20 19:45:00,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-20 19:45:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-20 19:45:00,375 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-20 19:45:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 19:45:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-20 19:45:00,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-20 19:45:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-20 19:45:00,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-20 19:45:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-20 19:45:00,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-20 19:45:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-20 19:45:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-20 19:45:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-20 19:45:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-20 19:45:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-20 19:45:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-20 19:45:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-20 19:45:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-20 19:45:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-20 19:45:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-20 19:45:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-20 19:45:00,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-20 19:45:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-20 19:45:00,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-20 19:45:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-20 19:45:00,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-20 19:45:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-20 19:45:00,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-20 19:45:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-20 19:45:00,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-20 19:45:00,377 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-20 19:45:00,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-20 19:45:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-20 19:45:00,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-20 19:45:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-20 19:45:00,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-20 19:45:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-20 19:45:00,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-20 19:45:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-20 19:45:00,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-20 19:45:00,378 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-20 19:45:00,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-20 19:45:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-20 19:45:00,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-20 19:45:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-20 19:45:00,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-20 19:45:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-20 19:45:00,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-20 19:45:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-20 19:45:00,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-20 19:45:00,379 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-20 19:45:00,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-20 19:45:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-20 19:45:00,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-20 19:45:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-20 19:45:00,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-20 19:45:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 19:45:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-20 19:45:00,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-20 19:45:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 19:45:00,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 19:45:01,086 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 19:45:01,090 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 19:45:21,368 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 19:45:31,671 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 19:45:31,671 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 19:45:31,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:45:31 BoogieIcfgContainer [2022-11-20 19:45:31,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 19:45:31,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 19:45:31,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 19:45:31,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 19:45:31,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:44:58" (1/3) ... [2022-11-20 19:45:31,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@323b48ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:45:31, skipping insertion in model container [2022-11-20 19:45:31,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:44:59" (2/3) ... [2022-11-20 19:45:31,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@323b48ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:45:31, skipping insertion in model container [2022-11-20 19:45:31,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:45:31" (3/3) ... [2022-11-20 19:45:31,695 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-2.c [2022-11-20 19:45:31,716 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 19:45:31,717 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 19:45:31,831 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 19:45:31,838 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;@56276070, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 19:45:31,840 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 19:45:31,851 INFO L276 IsEmpty]: Start isEmpty. Operand has 963 states, 611 states have (on average 1.3846153846153846) internal successors, (846), 635 states have internal predecessors, (846), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2022-11-20 19:45:31,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 19:45:31,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:45:31,869 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] [2022-11-20 19:45:31,870 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:45:31,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:45:31,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1840980182, now seen corresponding path program 1 times [2022-11-20 19:45:31,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:45:31,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736008518] [2022-11-20 19:45:31,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:45:31,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms