./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/longjmp/68-longjmp_15-counting-global-one-method_true.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/longjmp/68-longjmp_15-counting-global-one-method_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --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 64bit --witnessprinter.graph.data.programhash 210d4f938afcda48b8c106ef1e9bcf62be45f3ff0e64b22256fac269747775c2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:29:11,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:29:11,880 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:29:11,887 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:29:11,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:29:11,916 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:29:11,916 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:29:11,917 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:29:11,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:29:11,919 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:29:11,919 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:29:11,920 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:29:11,920 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:29:11,921 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:29:11,922 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:29:11,922 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:29:11,923 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:29:11,923 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:29:11,924 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:29:11,925 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:29:11,925 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:29:11,926 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:29:11,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:29:11,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:29:11,928 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:29:11,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:29:11,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:29:11,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:29:11,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:29:11,931 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:29:11,931 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:29:11,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:29:11,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:29:11,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:29:11,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:11,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:29:11,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:29:11,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:29:11,935 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:29:11,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:29:11,936 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:29:11,937 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:29:11,937 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:29:11,938 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:29:11,938 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 210d4f938afcda48b8c106ef1e9bcf62be45f3ff0e64b22256fac269747775c2 [2023-11-23 21:29:12,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:29:12,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:29:12,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:29:12,255 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:29:12,255 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:29:12,257 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/longjmp/68-longjmp_15-counting-global-one-method_true.i [2023-11-23 21:29:15,555 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:29:15,802 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:29:15,803 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/sv-benchmarks/c/longjmp/68-longjmp_15-counting-global-one-method_true.i [2023-11-23 21:29:15,813 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/data/b79762a12/1ed921dca9c74089ac387882051ce6dc/FLAG220a38923 [2023-11-23 21:29:15,835 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/data/b79762a12/1ed921dca9c74089ac387882051ce6dc [2023-11-23 21:29:15,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:29:15,848 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:29:15,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:15,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:29:15,859 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:29:15,860 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:15" (1/1) ... [2023-11-23 21:29:15,861 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3441956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:15, skipping insertion in model container [2023-11-23 21:29:15,861 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:15" (1/1) ... [2023-11-23 21:29:15,899 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:29:16,095 WARN L240 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_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/sv-benchmarks/c/longjmp/68-longjmp_15-counting-global-one-method_true.i[1100,1113] [2023-11-23 21:29:16,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:16,143 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:29:16,160 WARN L240 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_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/sv-benchmarks/c/longjmp/68-longjmp_15-counting-global-one-method_true.i[1100,1113] [2023-11-23 21:29:16,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:16,200 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:29:16,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:16 WrapperNode [2023-11-23 21:29:16,201 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:16,202 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:16,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:29:16,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:29:16,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:16" (1/1) ... [2023-11-23 21:29:16,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:16" (1/1) ... [2023-11-23 21:29:16,237 INFO L138 Inliner]: procedures = 20, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2023-11-23 21:29:16,238 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:16,238 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:29:16,238 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:29:16,239 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:29:16,248 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:16" (1/1) ... [2023-11-23 21:29:16,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:16" (1/1) ... [2023-11-23 21:29:16,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:16" (1/1) ... [2023-11-23 21:29:16,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:16" (1/1) ... [2023-11-23 21:29:16,267 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:16" (1/1) ... [2023-11-23 21:29:16,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:16" (1/1) ... [2023-11-23 21:29:16,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:16" (1/1) ... [2023-11-23 21:29:16,272 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:16" (1/1) ... [2023-11-23 21:29:16,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:29:16,274 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:29:16,274 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:29:16,274 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:29:16,275 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:16" (1/1) ... [2023-11-23 21:29:16,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:16,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:16,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:29:16,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:29:16,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:29:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:29:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:29:16,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:29:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:29:16,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:29:16,445 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:29:16,448 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:29:16,556 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:29:16,577 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:29:16,577 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:29:16,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:16 BoogieIcfgContainer [2023-11-23 21:29:16,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:29:16,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:29:16,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:29:16,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:29:16,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:29:15" (1/3) ... [2023-11-23 21:29:16,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2576d928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:16, skipping insertion in model container [2023-11-23 21:29:16,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:16" (2/3) ... [2023-11-23 21:29:16,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2576d928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:16, skipping insertion in model container [2023-11-23 21:29:16,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:16" (3/3) ... [2023-11-23 21:29:16,589 INFO L112 eAbstractionObserver]: Analyzing ICFG 68-longjmp_15-counting-global-one-method_true.i [2023-11-23 21:29:16,610 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:29:16,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 21:29:16,660 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:29:16,667 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=LoopHeads, 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;@7a864ab9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:29:16,668 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 21:29:16,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:29:16,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:29:16,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:16,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:29:16,682 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:16,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:16,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1962623233, now seen corresponding path program 1 times [2023-11-23 21:29:16,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:16,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126343187] [2023-11-23 21:29:16,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:16,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:16,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:16,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:29:16,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:16,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126343187] [2023-11-23 21:29:16,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126343187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:16,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:16,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:29:16,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372813948] [2023-11-23 21:29:16,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:16,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:29:16,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:16,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:29:16,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:16,987 INFO L87 Difference]: Start difference. First operand has 15 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:29:17,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:17,048 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2023-11-23 21:29:17,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:29:17,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 21:29:17,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:17,057 INFO L225 Difference]: With dead ends: 24 [2023-11-23 21:29:17,058 INFO L226 Difference]: Without dead ends: 12 [2023-11-23 21:29:17,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:17,065 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:17,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:29:17,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-23 21:29:17,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-23 21:29:17,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:29:17,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2023-11-23 21:29:17,122 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 6 [2023-11-23 21:29:17,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:17,123 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2023-11-23 21:29:17,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:29:17,124 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2023-11-23 21:29:17,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:29:17,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:17,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:29:17,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:29:17,125 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:17,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:17,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1952404920, now seen corresponding path program 1 times [2023-11-23 21:29:17,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:17,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956370956] [2023-11-23 21:29:17,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:17,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:17,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:29:17,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:17,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956370956] [2023-11-23 21:29:17,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956370956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:17,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:17,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:29:17,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773750709] [2023-11-23 21:29:17,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:17,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:29:17,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:17,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:29:17,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:29:17,388 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 5 states, 5 states have (on average 1.0) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:29:17,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:17,443 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2023-11-23 21:29:17,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:29:17,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.0) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 21:29:17,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:17,445 INFO L225 Difference]: With dead ends: 12 [2023-11-23 21:29:17,446 INFO L226 Difference]: Without dead ends: 10 [2023-11-23 21:29:17,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:29:17,448 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:17,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 6 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:29:17,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-23 21:29:17,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-23 21:29:17,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:29:17,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2023-11-23 21:29:17,454 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 6 [2023-11-23 21:29:17,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:17,454 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2023-11-23 21:29:17,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.0) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:29:17,455 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2023-11-23 21:29:17,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 21:29:17,460 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:17,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:17,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:29:17,461 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN === [ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:17,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:17,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1652648750, now seen corresponding path program 1 times [2023-11-23 21:29:17,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:17,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907031722] [2023-11-23 21:29:17,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:17,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:29:17,500 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:29:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:29:17,541 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:29:17,542 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:29:17,543 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN (1 of 2 remaining) [2023-11-23 21:29:17,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-11-23 21:29:17,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:29:17,551 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-23 21:29:17,555 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:29:17,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:29:17 BoogieIcfgContainer [2023-11-23 21:29:17,583 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:29:17,584 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:29:17,585 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:29:17,585 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:29:17,586 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:16" (3/4) ... [2023-11-23 21:29:17,590 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:29:17,591 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:29:17,592 INFO L158 Benchmark]: Toolchain (without parser) took 1743.95ms. Allocated memory was 155.2MB in the beginning and 218.1MB in the end (delta: 62.9MB). Free memory was 117.0MB in the beginning and 172.6MB in the end (delta: -55.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2023-11-23 21:29:17,593 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 155.2MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:29:17,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.81ms. Allocated memory is still 155.2MB. Free memory was 116.5MB in the beginning and 105.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:29:17,606 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.56ms. Allocated memory is still 155.2MB. Free memory was 105.9MB in the beginning and 104.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:29:17,608 INFO L158 Benchmark]: Boogie Preprocessor took 35.21ms. Allocated memory is still 155.2MB. Free memory was 104.5MB in the beginning and 103.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:29:17,610 INFO L158 Benchmark]: RCFGBuilder took 304.92ms. Allocated memory is still 155.2MB. Free memory was 103.1MB in the beginning and 93.4MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:29:17,611 INFO L158 Benchmark]: TraceAbstraction took 1001.23ms. Allocated memory was 155.2MB in the beginning and 218.1MB in the end (delta: 62.9MB). Free memory was 92.7MB in the beginning and 173.6MB in the end (delta: -81.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:29:17,612 INFO L158 Benchmark]: Witness Printer took 6.98ms. Allocated memory is still 218.1MB. Free memory was 173.6MB in the beginning and 172.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:29:17,616 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 155.2MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.81ms. Allocated memory is still 155.2MB. Free memory was 116.5MB in the beginning and 105.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.56ms. Allocated memory is still 155.2MB. Free memory was 105.9MB in the beginning and 104.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.21ms. Allocated memory is still 155.2MB. Free memory was 104.5MB in the beginning and 103.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 304.92ms. Allocated memory is still 155.2MB. Free memory was 103.1MB in the beginning and 93.4MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1001.23ms. Allocated memory was 155.2MB in the beginning and 218.1MB in the end (delta: 62.9MB). Free memory was 92.7MB in the beginning and 173.6MB in the end (delta: -81.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.98ms. Allocated memory is still 218.1MB. Free memory was 173.6MB in the beginning and 172.6MB in the end (delta: 1.0MB). There was no memory consumed. 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 - UnprovableResult [Line: 52]: Unable to prove that unknown kind of specification holds Unable to prove that unknown kind of specification holds Reason: overapproximation of longjmp at line 52. Possible FailurePath: [L44] jmp_buf my_jump_buffer; [L45] int count = 0; [L49] COND TRUE count < 5 VAL [count=0] [L50] CALL __VERIFIER_assert(count >= 0 && count < 5) VAL [\old(cond)=1, count=0] [L19] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, count=0] [L50] RET __VERIFIER_assert(count >= 0 && count < 5) VAL [count=0] [L51] count++ VAL [count=1] [L52] longjmp(my_jump_buffer, 1) VAL [count=1] - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:29:17,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/longjmp/68-longjmp_15-counting-global-one-method_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --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 64bit --witnessprinter.graph.data.programhash 210d4f938afcda48b8c106ef1e9bcf62be45f3ff0e64b22256fac269747775c2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:29:20,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:29:20,529 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-23 21:29:20,537 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:29:20,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:29:20,582 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:29:20,583 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:29:20,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:29:20,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:29:20,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:29:20,590 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:29:20,591 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:29:20,591 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:29:20,593 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:29:20,593 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:29:20,594 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:29:20,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:29:20,596 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:29:20,596 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:29:20,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:29:20,598 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:29:20,599 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:29:20,599 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:29:20,599 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:29:20,600 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:29:20,600 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:29:20,601 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:29:20,601 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:29:20,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:29:20,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:29:20,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:29:20,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:20,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:29:20,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:29:20,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:29:20,606 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:29:20,606 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:29:20,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:29:20,607 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:29:20,608 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:29:20,608 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:29:20,609 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 210d4f938afcda48b8c106ef1e9bcf62be45f3ff0e64b22256fac269747775c2 [2023-11-23 21:29:21,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:29:21,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:29:21,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:29:21,076 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:29:21,076 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:29:21,077 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/longjmp/68-longjmp_15-counting-global-one-method_true.i [2023-11-23 21:29:24,316 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:29:24,575 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:29:24,576 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/sv-benchmarks/c/longjmp/68-longjmp_15-counting-global-one-method_true.i [2023-11-23 21:29:24,585 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/data/ca971c143/f504c0c9ccc142c0b7f9a53aa6bc669a/FLAGfd5b2378a [2023-11-23 21:29:24,601 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/data/ca971c143/f504c0c9ccc142c0b7f9a53aa6bc669a [2023-11-23 21:29:24,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:29:24,605 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:29:24,607 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:24,607 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:29:24,612 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:29:24,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,614 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b1ac79f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24, skipping insertion in model container [2023-11-23 21:29:24,614 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,637 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:29:24,831 WARN L240 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_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/sv-benchmarks/c/longjmp/68-longjmp_15-counting-global-one-method_true.i[1100,1113] [2023-11-23 21:29:24,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:24,886 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:29:24,905 WARN L240 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_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/sv-benchmarks/c/longjmp/68-longjmp_15-counting-global-one-method_true.i[1100,1113] [2023-11-23 21:29:24,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:24,930 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:29:24,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24 WrapperNode [2023-11-23 21:29:24,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:24,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:24,932 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:29:24,933 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:29:24,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,987 INFO L138 Inliner]: procedures = 20, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2023-11-23 21:29:24,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:24,989 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:29:24,989 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:29:24,989 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:29:24,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:25,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:25,021 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:25,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:25,027 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:25,036 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:25,038 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:25,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:25,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:29:25,049 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:29:25,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:29:25,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:29:25,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:25,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:25,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:25,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:29:25,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:29:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:29:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:29:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:29:25,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:29:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:29:25,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:29:25,233 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:29:25,236 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:29:25,441 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:29:25,479 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:29:25,480 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:29:25,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:25 BoogieIcfgContainer [2023-11-23 21:29:25,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:29:25,489 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:29:25,489 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:29:25,492 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:29:25,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:29:24" (1/3) ... [2023-11-23 21:29:25,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725ebb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:25, skipping insertion in model container [2023-11-23 21:29:25,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24" (2/3) ... [2023-11-23 21:29:25,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725ebb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:25, skipping insertion in model container [2023-11-23 21:29:25,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:25" (3/3) ... [2023-11-23 21:29:25,496 INFO L112 eAbstractionObserver]: Analyzing ICFG 68-longjmp_15-counting-global-one-method_true.i [2023-11-23 21:29:25,515 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:29:25,515 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 21:29:25,557 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:29:25,564 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=LoopHeads, 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;@2a2c49e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:29:25,564 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 21:29:25,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:29:25,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:29:25,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:25,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:29:25,578 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:25,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:25,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1962623233, now seen corresponding path program 1 times [2023-11-23 21:29:25,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:29:25,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552667520] [2023-11-23 21:29:25,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:25,600 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:29:25,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:29:25,604 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:29:25,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:29:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:25,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:29:25,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:25,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:29:25,775 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:29:25,776 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:29:25,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552667520] [2023-11-23 21:29:25,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552667520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:25,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:25,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:29:25,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678442598] [2023-11-23 21:29:25,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:25,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:29:25,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:29:25,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:29:25,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:25,815 INFO L87 Difference]: Start difference. First operand has 15 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:29:25,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:25,851 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2023-11-23 21:29:25,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:29:25,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 21:29:25,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:25,860 INFO L225 Difference]: With dead ends: 24 [2023-11-23 21:29:25,860 INFO L226 Difference]: Without dead ends: 12 [2023-11-23 21:29:25,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:25,867 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:25,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:29:25,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-23 21:29:25,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-23 21:29:25,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:29:25,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2023-11-23 21:29:25,901 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 6 [2023-11-23 21:29:25,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:25,901 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2023-11-23 21:29:25,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:29:25,902 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2023-11-23 21:29:25,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:29:25,903 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:25,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:29:25,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:26,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:29:26,106 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:26,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:26,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1952404920, now seen corresponding path program 1 times [2023-11-23 21:29:26,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:29:26,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1574455979] [2023-11-23 21:29:26,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:26,108 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:29:26,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:29:26,109 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:29:26,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:29:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:26,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:29:26,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:26,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:29:26,215 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:29:26,216 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:29:26,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1574455979] [2023-11-23 21:29:26,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1574455979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:26,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:26,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:29:26,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788153255] [2023-11-23 21:29:26,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:26,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:29:26,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:29:26,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:29:26,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:29:26,219 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 5 states, 5 states have (on average 1.0) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:29:26,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:26,288 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2023-11-23 21:29:26,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:29:26,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.0) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 21:29:26,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:26,289 INFO L225 Difference]: With dead ends: 12 [2023-11-23 21:29:26,289 INFO L226 Difference]: Without dead ends: 10 [2023-11-23 21:29:26,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:29:26,291 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:26,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 6 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:29:26,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-23 21:29:26,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-23 21:29:26,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:29:26,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2023-11-23 21:29:26,297 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 6 [2023-11-23 21:29:26,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:26,297 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2023-11-23 21:29:26,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.0) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:29:26,298 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2023-11-23 21:29:26,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 21:29:26,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:26,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:26,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-23 21:29:26,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:29:26,501 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN === [ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:26,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:26,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1652648750, now seen corresponding path program 1 times [2023-11-23 21:29:26,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:29:26,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513648472] [2023-11-23 21:29:26,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:26,503 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:29:26,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:29:26,510 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:29:26,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:29:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:29:26,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:29:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:29:26,575 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-23 21:29:26,575 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:29:26,577 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN (1 of 2 remaining) [2023-11-23 21:29:26,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-11-23 21:29:26,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:26,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:29:26,783 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-23 21:29:26,793 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:29:26,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:29:26 BoogieIcfgContainer [2023-11-23 21:29:26,817 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:29:26,817 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:29:26,817 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:29:26,818 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:29:26,818 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:25" (3/4) ... [2023-11-23 21:29:26,820 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:29:26,822 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:29:26,823 INFO L158 Benchmark]: Toolchain (without parser) took 2217.26ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 38.7MB in the beginning and 61.1MB in the end (delta: -22.4MB). Peak memory consumption was 364.1kB. Max. memory is 16.1GB. [2023-11-23 21:29:26,823 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 62.9MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:29:26,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.76ms. Allocated memory is still 62.9MB. Free memory was 38.5MB in the beginning and 27.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:29:26,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.24ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 27.4MB in the beginning and 62.6MB in the end (delta: -35.2MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2023-11-23 21:29:26,825 INFO L158 Benchmark]: Boogie Preprocessor took 59.57ms. Allocated memory is still 83.9MB. Free memory was 62.6MB in the beginning and 61.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:29:26,825 INFO L158 Benchmark]: RCFGBuilder took 435.53ms. Allocated memory is still 83.9MB. Free memory was 61.4MB in the beginning and 50.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:29:26,826 INFO L158 Benchmark]: TraceAbstraction took 1328.04ms. Allocated memory is still 83.9MB. Free memory was 50.3MB in the beginning and 61.5MB in the end (delta: -11.2MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-11-23 21:29:26,827 INFO L158 Benchmark]: Witness Printer took 4.46ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 61.1MB in the end (delta: 488.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:29:26,830 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 62.9MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.76ms. Allocated memory is still 62.9MB. Free memory was 38.5MB in the beginning and 27.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.24ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 27.4MB in the beginning and 62.6MB in the end (delta: -35.2MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.57ms. Allocated memory is still 83.9MB. Free memory was 62.6MB in the beginning and 61.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 435.53ms. Allocated memory is still 83.9MB. Free memory was 61.4MB in the beginning and 50.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1328.04ms. Allocated memory is still 83.9MB. Free memory was 50.3MB in the beginning and 61.5MB in the end (delta: -11.2MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Witness Printer took 4.46ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 61.1MB in the end (delta: 488.2kB). There was no memory consumed. 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 - UnprovableResult [Line: 52]: Unable to prove that unknown kind of specification holds Unable to prove that unknown kind of specification holds Reason: overapproximation of longjmp at line 52. Possible FailurePath: [L44] jmp_buf my_jump_buffer; [L45] int count = 0; [L49] COND TRUE count < 5 VAL [count=0] [L50] CALL __VERIFIER_assert(count >= 0 && count < 5) VAL [\old(cond)=1, count=0] [L19] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, count=0] [L50] RET __VERIFIER_assert(count >= 0 && count < 5) VAL [count=0] [L51] count++ VAL [count=1] [L52] longjmp(my_jump_buffer, 1) VAL [count=1] - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 2 NumberOfNonLiveVariables, 64 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:29:26,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d808f49-d71a-4b5c-bbac-fa6f1b5e2632/bin/utaipan-verify-mE87zJ7Ire/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: UNKNOWN: Overapproximated counterexample