./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label37.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label37.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh --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 32bit --witnessprinter.graph.data.programhash 0119f2b2fb4504b695be9741d94be3417a406a0ace70334ccdd5124dc6f7dfad --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:12:10,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:12:10,961 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 15:12:10,966 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:12:10,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:12:10,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:12:10,989 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:12:10,990 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:12:10,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:12:10,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:12:10,991 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:12:10,992 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:12:10,992 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:12:10,993 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:12:10,993 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:12:10,994 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:12:10,994 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:12:10,995 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:12:10,995 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:12:10,996 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:12:10,997 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:12:10,997 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:12:10,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:12:10,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:12:10,999 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:12:10,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:12:11,000 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:12:11,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:12:11,001 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:12:11,001 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:12:11,002 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:12:11,002 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:12:11,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:12:11,003 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:12:11,003 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:12:11,003 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:12:11,003 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:12:11,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:12:11,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:12:11,004 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:12:11,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:12:11,004 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:12:11,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:12:11,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:12:11,005 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:12:11,005 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:12:11,005 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:12:11,005 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_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0119f2b2fb4504b695be9741d94be3417a406a0ace70334ccdd5124dc6f7dfad [2023-12-02 15:12:11,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:12:11,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:12:11,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:12:11,239 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:12:11,239 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:12:11,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/eca-rers2012/Problem10_label37.c [2023-12-02 15:12:14,048 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:12:14,288 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:12:14,289 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/sv-benchmarks/c/eca-rers2012/Problem10_label37.c [2023-12-02 15:12:14,305 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/data/9bd511a50/60096059d05f41c08a3e993ffa3e2de2/FLAG5c5fd5513 [2023-12-02 15:12:14,319 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/data/9bd511a50/60096059d05f41c08a3e993ffa3e2de2 [2023-12-02 15:12:14,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:12:14,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:12:14,325 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:12:14,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:12:14,331 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:12:14,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:12:14" (1/1) ... [2023-12-02 15:12:14,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b0651b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:14, skipping insertion in model container [2023-12-02 15:12:14,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:12:14" (1/1) ... [2023-12-02 15:12:14,378 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:12:14,573 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_526f4b87-c339-4c7d-94b9-01850a716d62/sv-benchmarks/c/eca-rers2012/Problem10_label37.c[6216,6229] [2023-12-02 15:12:14,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:12:14,706 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:12:14,736 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_526f4b87-c339-4c7d-94b9-01850a716d62/sv-benchmarks/c/eca-rers2012/Problem10_label37.c[6216,6229] [2023-12-02 15:12:14,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:12:14,810 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:12:14,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:14 WrapperNode [2023-12-02 15:12:14,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:12:14,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:12:14,811 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:12:14,811 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:12:14,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:14" (1/1) ... [2023-12-02 15:12:14,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:14" (1/1) ... [2023-12-02 15:12:14,900 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 598 [2023-12-02 15:12:14,901 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:12:14,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:12:14,902 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:12:14,902 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:12:14,910 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:14" (1/1) ... [2023-12-02 15:12:14,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:14" (1/1) ... [2023-12-02 15:12:14,916 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:14" (1/1) ... [2023-12-02 15:12:14,916 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:14" (1/1) ... [2023-12-02 15:12:14,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:14" (1/1) ... [2023-12-02 15:12:14,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:14" (1/1) ... [2023-12-02 15:12:14,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:14" (1/1) ... [2023-12-02 15:12:14,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:14" (1/1) ... [2023-12-02 15:12:14,980 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:12:14,981 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:12:14,981 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:12:14,982 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:12:14,982 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:14" (1/1) ... [2023-12-02 15:12:14,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:12:14,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:12:15,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:12:15,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:12:15,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:12:15,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:12:15,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:12:15,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:12:15,173 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:12:15,176 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:12:16,149 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:12:18,949 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:12:18,949 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:12:18,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:12:18 BoogieIcfgContainer [2023-12-02 15:12:18,951 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:12:18,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:12:18,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:12:18,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:12:18,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:12:14" (1/3) ... [2023-12-02 15:12:18,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c93a9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:12:18, skipping insertion in model container [2023-12-02 15:12:18,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:14" (2/3) ... [2023-12-02 15:12:18,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c93a9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:12:18, skipping insertion in model container [2023-12-02 15:12:18,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:12:18" (3/3) ... [2023-12-02 15:12:18,960 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label37.c [2023-12-02 15:12:18,976 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:12:18,976 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:12:19,018 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:12:19,025 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;@3a1085a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:12:19,025 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:12:19,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:12:19,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 15:12:19,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:12:19,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 15:12:19,035 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:12:19,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:12:19,040 INFO L85 PathProgramCache]: Analyzing trace with hash 900886011, now seen corresponding path program 1 times [2023-12-02 15:12:19,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:12:19,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63118885] [2023-12-02 15:12:19,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:12:19,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:12:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:12:19,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:12:19,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:12:19,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63118885] [2023-12-02 15:12:19,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63118885] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:12:19,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:12:19,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:12:19,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806583187] [2023-12-02 15:12:19,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:12:19,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 15:12:19,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:12:19,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 15:12:19,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:12:19,372 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:12:19,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:12:19,467 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2023-12-02 15:12:19,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:12:19,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-12-02 15:12:19,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:12:19,476 INFO L225 Difference]: With dead ends: 23 [2023-12-02 15:12:19,477 INFO L226 Difference]: Without dead ends: 11 [2023-12-02 15:12:19,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:12:19,483 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:12:19,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 10 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:12:19,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-12-02 15:12:19,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-12-02 15:12:19,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:12:19,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-12-02 15:12:19,511 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2023-12-02 15:12:19,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:12:19,512 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-12-02 15:12:19,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:12:19,513 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-12-02 15:12:19,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 15:12:19,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:12:19,513 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-12-02 15:12:19,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:12:19,514 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:12:19,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:12:19,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1342113906, now seen corresponding path program 1 times [2023-12-02 15:12:19,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:12:19,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134740726] [2023-12-02 15:12:19,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:12:19,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:12:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:12:30,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:12:30,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:12:30,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134740726] [2023-12-02 15:12:30,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134740726] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:12:30,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223846486] [2023-12-02 15:12:30,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:12:30,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:12:30,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:12:30,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:12:30,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:12:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:12:30,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 15:12:30,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:12:31,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:12:31,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:12:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 15:12:32,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223846486] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 15:12:32,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:12:32,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4] total 7 [2023-12-02 15:12:32,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712126645] [2023-12-02 15:12:32,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:12:32,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:12:32,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:12:32,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:12:32,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:12:32,232 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:12:32,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:12:32,269 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2023-12-02 15:12:32,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:12:32,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-12-02 15:12:32,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:12:32,271 INFO L225 Difference]: With dead ends: 10 [2023-12-02 15:12:32,271 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 15:12:32,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:12:32,273 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:12:32,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:12:32,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 15:12:32,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 15:12:32,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:12:32,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 15:12:32,275 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2023-12-02 15:12:32,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:12:32,276 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 15:12:32,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:12:32,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 15:12:32,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 15:12:32,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 15:12:32,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:12:32,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:12:32,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 15:12:32,497 INFO L899 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2023-12-02 15:12:32,498 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2023-12-02 15:12:32,498 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2023-12-02 15:12:32,498 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2023-12-02 15:12:32,498 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 602) no Hoare annotation was computed. [2023-12-02 15:12:32,498 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 15:12:32,498 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 15:12:32,499 INFO L895 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (or (< 218 ~a1~0) (not (= ~a10~0 4)) (< ~a1~0 39) (not (= 7 ~a19~0))) [2023-12-02 15:12:32,499 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 176) no Hoare annotation was computed. [2023-12-02 15:12:32,503 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-02 15:12:32,505 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:12:32,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:12:32 BoogieIcfgContainer [2023-12-02 15:12:32,518 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:12:32,518 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:12:32,519 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:12:32,519 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:12:32,519 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:12:18" (3/4) ... [2023-12-02 15:12:32,521 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 15:12:32,545 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 195 nodes and edges [2023-12-02 15:12:32,547 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-02 15:12:32,549 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 15:12:32,551 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 15:12:32,729 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 15:12:32,730 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 15:12:32,730 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:12:32,731 INFO L158 Benchmark]: Toolchain (without parser) took 18406.93ms. Allocated memory was 136.3MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 97.2MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 194.0MB. Max. memory is 16.1GB. [2023-12-02 15:12:32,731 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:12:32,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.98ms. Allocated memory is still 136.3MB. Free memory was 96.7MB in the beginning and 68.8MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-12-02 15:12:32,732 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.78ms. Allocated memory is still 136.3MB. Free memory was 68.8MB in the beginning and 61.0MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 15:12:32,732 INFO L158 Benchmark]: Boogie Preprocessor took 78.88ms. Allocated memory is still 136.3MB. Free memory was 61.0MB in the beginning and 55.8MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 15:12:32,733 INFO L158 Benchmark]: RCFGBuilder took 3969.94ms. Allocated memory was 136.3MB in the beginning and 350.2MB in the end (delta: 213.9MB). Free memory was 55.8MB in the beginning and 263.9MB in the end (delta: -208.1MB). Peak memory consumption was 104.3MB. Max. memory is 16.1GB. [2023-12-02 15:12:32,733 INFO L158 Benchmark]: TraceAbstraction took 13564.00ms. Allocated memory was 350.2MB in the beginning and 1.4GB in the end (delta: 1.0GB). Free memory was 262.8MB in the beginning and 1.2GB in the end (delta: -890.7MB). Peak memory consumption was 131.6MB. Max. memory is 16.1GB. [2023-12-02 15:12:32,733 INFO L158 Benchmark]: Witness Printer took 211.56ms. Allocated memory is still 1.4GB. Free memory was 1.2GB in the beginning and 1.1GB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 15:12:32,736 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.98ms. Allocated memory is still 136.3MB. Free memory was 96.7MB in the beginning and 68.8MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.78ms. Allocated memory is still 136.3MB. Free memory was 68.8MB in the beginning and 61.0MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.88ms. Allocated memory is still 136.3MB. Free memory was 61.0MB in the beginning and 55.8MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3969.94ms. Allocated memory was 136.3MB in the beginning and 350.2MB in the end (delta: 213.9MB). Free memory was 55.8MB in the beginning and 263.9MB in the end (delta: -208.1MB). Peak memory consumption was 104.3MB. Max. memory is 16.1GB. * TraceAbstraction took 13564.00ms. Allocated memory was 350.2MB in the beginning and 1.4GB in the end (delta: 1.0GB). Free memory was 262.8MB in the beginning and 1.2GB in the end (delta: -890.7MB). Peak memory consumption was 131.6MB. Max. memory is 16.1GB. * Witness Printer took 211.56ms. Allocated memory is still 1.4GB. Free memory was 1.2GB in the beginning and 1.1GB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 176]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.5s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 3 NumberOfFragments, 15 HoareAnnotationTreeSize, 1 FomulaSimplifications, 32 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.7s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 517 SizeOfPredicates, 3 NumberOfNonLiveVariables, 182 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((218 < a1) || !((a10 == 4))) || (a1 < 39)) || !((7 == a19))) RESULT: Ultimate proved your program to be correct! [2023-12-02 15:12:32,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526f4b87-c339-4c7d-94b9-01850a716d62/bin/utaipan-verify-nQ1chXbOIh/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 Writing output log to file Ultimate.log Result: TRUE