./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label51.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_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/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_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label51.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/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_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/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 d1cc78894862a8232926a266f0e84c32d40ba4c1c811df274fffc61517c63c36 --- 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 20:09:07,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:09:07,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:09:07,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:09:07,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:09:07,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:09:07,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:09:07,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:09:07,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:09:07,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:09:07,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:09:07,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:09:07,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:09:07,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:09:07,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:09:07,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:09:07,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:09:07,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:09:07,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:09:07,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:09:07,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:09:07,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:09:07,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:09:07,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:09:07,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:09:07,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:09:07,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:09:07,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:09:07,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:09:07,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:09:07,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:09:07,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:09:07,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:09:07,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:09:07,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:09:07,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:09:07,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:09:07,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:09:07,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:09:07,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:09:07,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:09:07,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 20:09:07,418 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:09:07,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:09:07,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:09:07,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:09:07,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:09:07,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:09:07,420 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:09:07,421 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:09:07,421 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:09:07,421 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:09:07,422 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:09:07,422 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:09:07,422 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:09:07,423 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:09:07,423 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:09:07,423 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:09:07,423 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:09:07,423 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:09:07,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:09:07,424 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 20:09:07,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:09:07,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 20:09:07,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:09:07,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:09:07,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:09:07,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:09:07,426 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 20:09:07,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:09:07,426 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:09:07,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:09:07,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:09:07,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:09:07,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:09:07,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:09:07,428 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:09:07,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:09:07,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:09:07,428 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:09:07,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:09:07,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:09:07,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:09:07,430 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_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1cc78894862a8232926a266f0e84c32d40ba4c1c811df274fffc61517c63c36 [2022-11-20 20:09:07,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:09:07,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:09:07,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:09:07,850 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:09:07,851 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:09:07,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/eca-rers2012/Problem10_label51.c [2022-11-20 20:09:11,076 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:09:11,373 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:09:11,380 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/sv-benchmarks/c/eca-rers2012/Problem10_label51.c [2022-11-20 20:09:11,398 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/data/38272775a/1c267f6efab54c8a92485db962dd2ec0/FLAG7fb39e5ea [2022-11-20 20:09:11,419 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/data/38272775a/1c267f6efab54c8a92485db962dd2ec0 [2022-11-20 20:09:11,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:09:11,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:09:11,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:09:11,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:09:11,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:09:11,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:09:11" (1/1) ... [2022-11-20 20:09:11,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec8663c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:09:11, skipping insertion in model container [2022-11-20 20:09:11,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:09:11" (1/1) ... [2022-11-20 20:09:11,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:09:11,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:09:11,780 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_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/sv-benchmarks/c/eca-rers2012/Problem10_label51.c[5763,5776] [2022-11-20 20:09:11,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:09:11,948 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:09:11,989 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_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/sv-benchmarks/c/eca-rers2012/Problem10_label51.c[5763,5776] [2022-11-20 20:09:12,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:09:12,188 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:09:12,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:09:12 WrapperNode [2022-11-20 20:09:12,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:09:12,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:09:12,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:09:12,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:09:12,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:09:12" (1/1) ... [2022-11-20 20:09:12,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:09:12" (1/1) ... [2022-11-20 20:09:12,345 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2022-11-20 20:09:12,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:09:12,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:09:12,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:09:12,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:09:12,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:09:12" (1/1) ... [2022-11-20 20:09:12,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:09:12" (1/1) ... [2022-11-20 20:09:12,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:09:12" (1/1) ... [2022-11-20 20:09:12,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:09:12" (1/1) ... [2022-11-20 20:09:12,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:09:12" (1/1) ... [2022-11-20 20:09:12,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:09:12" (1/1) ... [2022-11-20 20:09:12,409 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:09:12" (1/1) ... [2022-11-20 20:09:12,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:09:12" (1/1) ... [2022-11-20 20:09:12,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:09:12,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:09:12,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:09:12,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:09:12,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:09:12" (1/1) ... [2022-11-20 20:09:12,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:09:12,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:09:12,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:09:12,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:09:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:09:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:09:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:09:12,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:09:12,596 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:09:12,599 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:09:13,949 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:09:16,905 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:09:16,906 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 20:09:16,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:09:16 BoogieIcfgContainer [2022-11-20 20:09:16,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:09:16,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:09:16,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:09:16,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:09:16,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:09:11" (1/3) ... [2022-11-20 20:09:16,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df09544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:09:16, skipping insertion in model container [2022-11-20 20:09:16,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:09:12" (2/3) ... [2022-11-20 20:09:16,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df09544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:09:16, skipping insertion in model container [2022-11-20 20:09:16,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:09:16" (3/3) ... [2022-11-20 20:09:16,926 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label51.c [2022-11-20 20:09:16,948 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:09:16,948 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 20:09:17,017 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:09:17,027 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;@5b7e3ff0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:09:17,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 20:09:17,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:09:17,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 20:09:17,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:09:17,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 20:09:17,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:09:17,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:09:17,051 INFO L85 PathProgramCache]: Analyzing trace with hash 885185130, now seen corresponding path program 1 times [2022-11-20 20:09:17,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:09:17,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358925161] [2022-11-20 20:09:17,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:09:17,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:09:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:09:17,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:09:17,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:09:17,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358925161] [2022-11-20 20:09:17,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358925161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:09:17,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:09:17,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:09:17,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358724774] [2022-11-20 20:09:17,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:09:17,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:09:17,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:09:17,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:09:17,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:09:17,606 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:09:17,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:09:17,750 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2022-11-20 20:09:17,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:09:17,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-20 20:09:17,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:09:17,765 INFO L225 Difference]: With dead ends: 23 [2022-11-20 20:09:17,765 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 20:09:17,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:09:17,773 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:09:17,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 10 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:09:17,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 20:09:17,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2022-11-20 20:09:17,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:09:17,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-11-20 20:09:17,812 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2022-11-20 20:09:17,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:09:17,813 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-11-20 20:09:17,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:09:17,814 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-11-20 20:09:17,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 20:09:17,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:09:17,814 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-20 20:09:17,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:09:17,816 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:09:17,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:09:17,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1087934849, now seen corresponding path program 1 times [2022-11-20 20:09:17,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:09:17,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170653855] [2022-11-20 20:09:17,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:09:17,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:09:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:09:32,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:09:32,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:09:32,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170653855] [2022-11-20 20:09:32,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170653855] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:09:32,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381276852] [2022-11-20 20:09:32,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:09:32,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:09:32,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:09:32,380 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:09:32,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 20:09:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:09:32,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 20:09:32,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:09:46,405 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:09:46,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:09:58,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 20:09:58,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381276852] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 20:09:58,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:09:58,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4] total 8 [2022-11-20 20:09:58,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646500013] [2022-11-20 20:09:58,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:09:58,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:09:58,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:09:58,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:09:58,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:09:58,628 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:09:58,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:09:58,672 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2022-11-20 20:09:58,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:09:58,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-20 20:09:58,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:09:58,675 INFO L225 Difference]: With dead ends: 10 [2022-11-20 20:09:58,675 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 20:09:58,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:09:58,677 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:09:58,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:09:58,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 20:09:58,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 20:09:58,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:09:58,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 20:09:58,679 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2022-11-20 20:09:58,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:09:58,679 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 20:09:58,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:09:58,680 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 20:09:58,680 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 20:09:58,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 20:09:58,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 20:09:58,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-20 20:09:58,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 20:09:58,920 INFO L899 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2022-11-20 20:09:58,921 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 20:09:58,922 INFO L902 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2022-11-20 20:09:58,922 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 20:09:58,922 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2022-11-20 20:09:58,923 INFO L895 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (or (not (= ~a19~0 8)) (< 0 (+ ~a1~0 13)) (not (= ~a10~0 3))) [2022-11-20 20:09:58,923 INFO L895 garLoopResultBuilder]: At program point L163-1(lines 30 584) the Hoare annotation is: (or (not (= ~a19~0 8)) (not (<= (+ ~a1~0 13) 0)) (not (= ~a10~0 3))) [2022-11-20 20:09:58,924 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-11-20 20:09:58,924 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 164) no Hoare annotation was computed. [2022-11-20 20:09:58,930 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 20:09:58,932 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 20:09:58,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:09:58 BoogieIcfgContainer [2022-11-20 20:09:58,965 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 20:09:58,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 20:09:58,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 20:09:58,967 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 20:09:58,967 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:09:16" (3/4) ... [2022-11-20 20:09:58,970 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 20:09:59,001 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 184 nodes and edges [2022-11-20 20:09:59,003 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-20 20:09:59,004 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-20 20:09:59,005 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 20:09:59,140 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 20:09:59,141 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 20:09:59,142 INFO L158 Benchmark]: Toolchain (without parser) took 47716.46ms. Allocated memory was 165.7MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 123.2MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 81.6MB. Max. memory is 16.1GB. [2022-11-20 20:09:59,142 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:09:59,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 777.69ms. Allocated memory is still 165.7MB. Free memory was 123.2MB in the beginning and 95.7MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-20 20:09:59,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 138.59ms. Allocated memory is still 165.7MB. Free memory was 95.7MB in the beginning and 87.9MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 20:09:59,143 INFO L158 Benchmark]: Boogie Preprocessor took 73.99ms. Allocated memory is still 165.7MB. Free memory was 87.9MB in the beginning and 83.1MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 20:09:59,144 INFO L158 Benchmark]: RCFGBuilder took 4487.70ms. Allocated memory was 165.7MB in the beginning and 299.9MB in the end (delta: 134.2MB). Free memory was 83.1MB in the beginning and 145.2MB in the end (delta: -62.1MB). Peak memory consumption was 107.8MB. Max. memory is 16.1GB. [2022-11-20 20:09:59,145 INFO L158 Benchmark]: TraceAbstraction took 42054.12ms. Allocated memory was 299.9MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 144.1MB in the beginning and 1.5GB in the end (delta: -1.3GB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:09:59,146 INFO L158 Benchmark]: Witness Printer took 174.84ms. Allocated memory is still 1.6GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 20:09:59,149 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 777.69ms. Allocated memory is still 165.7MB. Free memory was 123.2MB in the beginning and 95.7MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 138.59ms. Allocated memory is still 165.7MB. Free memory was 95.7MB in the beginning and 87.9MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.99ms. Allocated memory is still 165.7MB. Free memory was 87.9MB in the beginning and 83.1MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 4487.70ms. Allocated memory was 165.7MB in the beginning and 299.9MB in the end (delta: 134.2MB). Free memory was 83.1MB in the beginning and 145.2MB in the end (delta: -62.1MB). Peak memory consumption was 107.8MB. Max. memory is 16.1GB. * TraceAbstraction took 42054.12ms. Allocated memory was 299.9MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 144.1MB in the beginning and 1.5GB in the end (delta: -1.3GB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 174.84ms. Allocated memory is still 1.6GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 164]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 30 HoareAnnotationTreeSize, 3 FomulaSimplifications, 36 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 40.8s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 540 SizeOfPredicates, 4 NumberOfNonLiveVariables, 185 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (!(a19 == 8) || 0 < a1 + 13) || !(a10 == 3) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (!(a19 == 8) || !(a1 + 13 <= 0)) || !(a10 == 3) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-20 20:09:59,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3e0f5ec-78f9-4fcb-ac14-3aa8425f971a/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE