./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/ddlm2013.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/ddlm2013.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 65bd222d84b3d0ffad0fae15432ef5f02ecc91b1ed6d337cf01ace7c551e4ada
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 06:25:55,158 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 06:25:55,206 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-12-02 06:25:55,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 06:25:55,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 06:25:55,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 06:25:55,232 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 06:25:55,233 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 06:25:55,233 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 06:25:55,233 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 06:25:55,233 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 06:25:55,233 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 06:25:55,233 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 06:25:55,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 06:25:55,234 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 06:25:55,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 06:25:55,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 06:25:55,234 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 06:25:55,234 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 06:25:55,234 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 06:25:55,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 06:25:55,234 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 06:25:55,234 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 06:25:55,235 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 06:25:55,235 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 06:25:55,235 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 06:25:55,235 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 06:25:55,235 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 06:25:55,235 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 06:25:55,235 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 06:25:55,235 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 06:25:55,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 06:25:55,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:25:55,235 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 06:25:55,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 06:25:55,236 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 06:25:55,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 06:25:55,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:25:55,236 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 06:25:55,236 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 06:25:55,236 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 06:25:55,236 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 06:25:55,236 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 06:25:55,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 06:25:55,237 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 06:25:55,237 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 06:25:55,237 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 06:25:55,237 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 06:25:55,237 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1
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 -> Automizer
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 -> 65bd222d84b3d0ffad0fae15432ef5f02ecc91b1ed6d337cf01ace7c551e4ada
[2024-12-02 06:25:55,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 06:25:55,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 06:25:55,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 06:25:55,472 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 06:25:55,473 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 06:25:55,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/loop-lit/ddlm2013.i
[2024-12-02 06:25:58,088 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/data/60f3f78e0/2eff501b441449fdad7b151b485240d2/FLAG386782579
[2024-12-02 06:25:58,261 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 06:25:58,262 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/sv-benchmarks/c/loop-lit/ddlm2013.i
[2024-12-02 06:25:58,267 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/data/60f3f78e0/2eff501b441449fdad7b151b485240d2/FLAG386782579
[2024-12-02 06:25:58,651 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/data/60f3f78e0/2eff501b441449fdad7b151b485240d2
[2024-12-02 06:25:58,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 06:25:58,654 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 06:25:58,655 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 06:25:58,655 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 06:25:58,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 06:25:58,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:25:58" (1/1) ...
[2024-12-02 06:25:58,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74aba5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:58, skipping insertion in model container
[2024-12-02 06:25:58,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:25:58" (1/1) ...
[2024-12-02 06:25:58,670 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 06:25:58,780 WARN L250 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_c755c7c9-021a-4e20-8533-100338cffeb7/sv-benchmarks/c/loop-lit/ddlm2013.i[895,908]
[2024-12-02 06:25:58,793 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 06:25:58,801 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 06:25:58,810 WARN L250 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_c755c7c9-021a-4e20-8533-100338cffeb7/sv-benchmarks/c/loop-lit/ddlm2013.i[895,908]
[2024-12-02 06:25:58,814 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 06:25:58,826 INFO L204 MainTranslator]: Completed translation
[2024-12-02 06:25:58,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:58 WrapperNode
[2024-12-02 06:25:58,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 06:25:58,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 06:25:58,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 06:25:58,828 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 06:25:58,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:58" (1/1) ...
[2024-12-02 06:25:58,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:58" (1/1) ...
[2024-12-02 06:25:58,850 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49
[2024-12-02 06:25:58,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 06:25:58,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 06:25:58,852 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 06:25:58,852 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 06:25:58,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:58" (1/1) ...
[2024-12-02 06:25:58,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:58" (1/1) ...
[2024-12-02 06:25:58,859 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:58" (1/1) ...
[2024-12-02 06:25:58,869 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-12-02 06:25:58,870 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:58" (1/1) ...
[2024-12-02 06:25:58,870 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:58" (1/1) ...
[2024-12-02 06:25:58,872 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:58" (1/1) ...
[2024-12-02 06:25:58,873 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:58" (1/1) ...
[2024-12-02 06:25:58,876 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:58" (1/1) ...
[2024-12-02 06:25:58,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:58" (1/1) ...
[2024-12-02 06:25:58,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:58" (1/1) ...
[2024-12-02 06:25:58,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 06:25:58,880 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 06:25:58,880 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 06:25:58,880 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 06:25:58,881 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:58" (1/1) ...
[2024-12-02 06:25:58,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:25:58,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:25:58,908 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 06:25:58,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 06:25:58,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 06:25:58,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 06:25:58,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 06:25:58,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 06:25:58,987 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 06:25:58,988 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 06:25:59,082 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live.
[2024-12-02 06:25:59,082 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 06:25:59,089 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 06:25:59,089 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-02 06:25:59,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:25:59 BoogieIcfgContainer
[2024-12-02 06:25:59,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 06:25:59,091 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 06:25:59,091 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 06:25:59,094 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 06:25:59,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:25:58" (1/3) ...
[2024-12-02 06:25:59,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f5ed0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:25:59, skipping insertion in model container
[2024-12-02 06:25:59,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:58" (2/3) ...
[2024-12-02 06:25:59,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f5ed0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:25:59, skipping insertion in model container
[2024-12-02 06:25:59,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:25:59" (3/3) ...
[2024-12-02 06:25:59,096 INFO L128 eAbstractionObserver]: Analyzing ICFG ddlm2013.i
[2024-12-02 06:25:59,107 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 06:25:59,109 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ddlm2013.i that has 1 procedures, 16 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 06:25:59,152 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 06:25:59,162 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, 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;@1c807742, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 06:25:59,162 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 06:25:59,165 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 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)
[2024-12-02 06:25:59,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-12-02 06:25:59,169 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:25:59,169 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:25:59,169 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:25:59,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:25:59,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1805490696, now seen corresponding path program 1 times
[2024-12-02 06:25:59,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:25:59,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968033927]
[2024-12-02 06:25:59,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:25:59,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:25:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:25:59,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:25:59,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:25:59,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968033927]
[2024-12-02 06:25:59,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968033927] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:25:59,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:25:59,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 06:25:59,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112439726]
[2024-12-02 06:25:59,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:25:59,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-02 06:25:59,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:25:59,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-02 06:25:59,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 06:25:59,309 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 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 2 states, 2 states have (on average 3.5) 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)
[2024-12-02 06:25:59,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:25:59,320 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions.
[2024-12-02 06:25:59,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-02 06:25:59,322 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) 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 7
[2024-12-02 06:25:59,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:25:59,329 INFO L225 Difference]: With dead ends: 25
[2024-12-02 06:25:59,329 INFO L226 Difference]: Without dead ends: 11
[2024-12-02 06:25:59,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 06:25:59,334 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 06:25:59,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 06:25:59,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states.
[2024-12-02 06:25:59,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11.
[2024-12-02 06:25:59,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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)
[2024-12-02 06:25:59,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions.
[2024-12-02 06:25:59,359 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 7
[2024-12-02 06:25:59,359 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:25:59,359 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions.
[2024-12-02 06:25:59,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) 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)
[2024-12-02 06:25:59,359 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions.
[2024-12-02 06:25:59,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-12-02 06:25:59,359 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:25:59,359 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:25:59,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 06:25:59,360 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:25:59,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:25:59,360 INFO L85 PathProgramCache]: Analyzing trace with hash 121363929, now seen corresponding path program 1 times
[2024-12-02 06:25:59,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:25:59,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796735145]
[2024-12-02 06:25:59,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:25:59,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:25:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:25:59,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:25:59,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:25:59,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796735145]
[2024-12-02 06:25:59,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796735145] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:25:59,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:25:59,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 06:25:59,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956657306]
[2024-12-02 06:25:59,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:25:59,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:25:59,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:25:59,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:25:59,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:25:59,610 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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)
[2024-12-02 06:25:59,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:25:59,628 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions.
[2024-12-02 06:25:59,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:25:59,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8
[2024-12-02 06:25:59,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:25:59,628 INFO L225 Difference]: With dead ends: 18
[2024-12-02 06:25:59,628 INFO L226 Difference]: Without dead ends: 14
[2024-12-02 06:25:59,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:25:59,629 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 06:25:59,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 29 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 06:25:59,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states.
[2024-12-02 06:25:59,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13.
[2024-12-02 06:25:59,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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)
[2024-12-02 06:25:59,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions.
[2024-12-02 06:25:59,633 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 8
[2024-12-02 06:25:59,633 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:25:59,633 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions.
[2024-12-02 06:25:59,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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)
[2024-12-02 06:25:59,634 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions.
[2024-12-02 06:25:59,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-12-02 06:25:59,634 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:25:59,634 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:25:59,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 06:25:59,634 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:25:59,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:25:59,635 INFO L85 PathProgramCache]: Analyzing trace with hash -945453133, now seen corresponding path program 1 times
[2024-12-02 06:25:59,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:25:59,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896831468]
[2024-12-02 06:25:59,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:25:59,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:25:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:26:00,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:26:00,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:26:00,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896831468]
[2024-12-02 06:26:00,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896831468] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:26:00,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278367980]
[2024-12-02 06:26:00,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:26:00,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:26:00,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:26:00,047 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:26:00,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 06:26:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:26:00,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-12-02 06:26:00,092 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:26:00,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:26:00,205 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:26:00,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:26:00,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278367980] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 06:26:00,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 06:26:00,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12
[2024-12-02 06:26:00,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178796929]
[2024-12-02 06:26:00,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:26:00,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-12-02 06:26:00,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:26:00,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-12-02 06:26:00,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132
[2024-12-02 06:26:00,305 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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)
[2024-12-02 06:26:00,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:26:00,358 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions.
[2024-12-02 06:26:00,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 06:26:00,359 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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 12
[2024-12-02 06:26:00,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:26:00,360 INFO L225 Difference]: With dead ends: 25
[2024-12-02 06:26:00,360 INFO L226 Difference]: Without dead ends: 21
[2024-12-02 06:26:00,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156
[2024-12-02 06:26:00,361 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 06:26:00,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 53 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 06:26:00,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2024-12-02 06:26:00,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17.
[2024-12-02 06:26:00,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 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)
[2024-12-02 06:26:00,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions.
[2024-12-02 06:26:00,365 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 12
[2024-12-02 06:26:00,365 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:26:00,365 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions.
[2024-12-02 06:26:00,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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)
[2024-12-02 06:26:00,365 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions.
[2024-12-02 06:26:00,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-12-02 06:26:00,366 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:26:00,366 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:26:00,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 06:26:00,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:26:00,566 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:26:00,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:26:00,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1338480143, now seen corresponding path program 1 times
[2024-12-02 06:26:00,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:26:00,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161010240]
[2024-12-02 06:26:00,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:26:00,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:26:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:26:00,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-12-02 06:26:00,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:26:00,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161010240]
[2024-12-02 06:26:00,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161010240] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:26:00,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:26:00,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:26:00,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963038995]
[2024-12-02 06:26:00,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:26:00,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 06:26:00,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:26:00,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 06:26:00,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:26:00,590 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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)
[2024-12-02 06:26:00,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:26:00,598 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions.
[2024-12-02 06:26:00,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 06:26:00,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Word has length 12
[2024-12-02 06:26:00,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:26:00,599 INFO L225 Difference]: With dead ends: 27
[2024-12-02 06:26:00,599 INFO L226 Difference]: Without dead ends: 17
[2024-12-02 06:26:00,599 INFO L434 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
[2024-12-02 06:26:00,600 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 06:26:00,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 06:26:00,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2024-12-02 06:26:00,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2024-12-02 06:26:00,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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)
[2024-12-02 06:26:00,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions.
[2024-12-02 06:26:00,603 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12
[2024-12-02 06:26:00,603 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:26:00,603 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions.
[2024-12-02 06:26:00,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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)
[2024-12-02 06:26:00,604 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions.
[2024-12-02 06:26:00,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-12-02 06:26:00,604 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:26:00,604 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:26:00,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 06:26:00,604 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:26:00,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:26:00,605 INFO L85 PathProgramCache]: Analyzing trace with hash -2062371699, now seen corresponding path program 2 times
[2024-12-02 06:26:00,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:26:00,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508537484]
[2024-12-02 06:26:00,605 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 06:26:00,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:26:00,619 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 06:26:00,619 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 06:26:00,880 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:26:00,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:26:00,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508537484]
[2024-12-02 06:26:00,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508537484] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:26:00,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299689176]
[2024-12-02 06:26:00,880 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 06:26:00,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:26:00,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:26:00,882 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:26:00,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 06:26:00,924 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 06:26:00,924 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 06:26:00,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-12-02 06:26:00,927 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:26:01,086 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:26:01,086 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:26:01,265 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:26:01,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299689176] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 06:26:01,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 06:26:01,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17
[2024-12-02 06:26:01,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447881293]
[2024-12-02 06:26:01,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:26:01,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-12-02 06:26:01,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:26:01,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-12-02 06:26:01,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272
[2024-12-02 06:26:01,268 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 17 states have internal predecessors, (39), 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)
[2024-12-02 06:26:01,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:26:01,573 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions.
[2024-12-02 06:26:01,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-12-02 06:26:01,574 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 17 states have internal predecessors, (39), 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 16
[2024-12-02 06:26:01,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:26:01,574 INFO L225 Difference]: With dead ends: 47
[2024-12-02 06:26:01,575 INFO L226 Difference]: Without dead ends: 32
[2024-12-02 06:26:01,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420
[2024-12-02 06:26:01,576 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 16 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 06:26:01,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 103 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 06:26:01,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2024-12-02 06:26:01,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 21.
[2024-12-02 06:26:01,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 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)
[2024-12-02 06:26:01,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions.
[2024-12-02 06:26:01,582 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 16
[2024-12-02 06:26:01,582 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:26:01,582 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions.
[2024-12-02 06:26:01,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 17 states have internal predecessors, (39), 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)
[2024-12-02 06:26:01,583 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions.
[2024-12-02 06:26:01,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2024-12-02 06:26:01,583 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:26:01,583 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:26:01,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-12-02 06:26:01,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:26:01,784 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:26:01,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:26:01,784 INFO L85 PathProgramCache]: Analyzing trace with hash 614254245, now seen corresponding path program 1 times
[2024-12-02 06:26:01,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:26:01,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891205192]
[2024-12-02 06:26:01,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:26:01,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:26:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:26:01,872 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-12-02 06:26:01,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:26:01,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891205192]
[2024-12-02 06:26:01,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891205192] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:26:01,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213698926]
[2024-12-02 06:26:01,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:26:01,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:26:01,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:26:01,874 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:26:01,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 06:26:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:26:01,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 06:26:01,916 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:26:01,943 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-12-02 06:26:01,943 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:26:01,979 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-12-02 06:26:01,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213698926] provided 1 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:26:01,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-12-02 06:26:01,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 7
[2024-12-02 06:26:01,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885886480]
[2024-12-02 06:26:01,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:26:01,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 06:26:01,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:26:01,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 06:26:01,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2024-12-02 06:26:01,981 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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)
[2024-12-02 06:26:01,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:26:01,989 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions.
[2024-12-02 06:26:01,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 06:26:01,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 20
[2024-12-02 06:26:01,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:26:01,991 INFO L225 Difference]: With dead ends: 21
[2024-12-02 06:26:01,991 INFO L226 Difference]: Without dead ends: 0
[2024-12-02 06:26:01,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2024-12-02 06:26:01,992 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 06:26:01,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 06:26:01,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-12-02 06:26:01,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-12-02 06:26:01,994 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)
[2024-12-02 06:26:01,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-12-02 06:26:01,994 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20
[2024-12-02 06:26:01,994 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:26:01,994 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-12-02 06:26:01,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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)
[2024-12-02 06:26:01,995 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-12-02 06:26:01,995 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-12-02 06:26:01,997 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-12-02 06:26:02,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 06:26:02,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-12-02 06:26:02,200 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1]
[2024-12-02 06:26:02,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-12-02 06:26:02,269 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 06:26:02,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:26:02 BoogieIcfgContainer
[2024-12-02 06:26:02,285 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 06:26:02,286 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 06:26:02,286 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 06:26:02,286 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 06:26:02,287 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:25:59" (3/4) ...
[2024-12-02 06:26:02,289 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-12-02 06:26:02,297 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges
[2024-12-02 06:26:02,297 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-12-02 06:26:02,297 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-12-02 06:26:02,297 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-12-02 06:26:02,373 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-02 06:26:02,373 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-02 06:26:02,373 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 06:26:02,374 INFO L158 Benchmark]: Toolchain (without parser) took 3720.08ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 92.7MB in the beginning and 85.4MB in the end (delta: 7.3MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB.
[2024-12-02 06:26:02,375 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 06:26:02,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.37ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 81.4MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 06:26:02,375 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.99ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 06:26:02,375 INFO L158 Benchmark]: Boogie Preprocessor took 27.46ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 79.1MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 06:26:02,376 INFO L158 Benchmark]: RCFGBuilder took 209.82ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 69.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 06:26:02,376 INFO L158 Benchmark]: TraceAbstraction took 3194.08ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 68.8MB in the beginning and 89.9MB in the end (delta: -21.0MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB.
[2024-12-02 06:26:02,376 INFO L158 Benchmark]: Witness Printer took 88.01ms. Allocated memory is still 201.3MB. Free memory was 89.9MB in the beginning and 85.4MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 06:26:02,377 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 172.37ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 81.4MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 22.99ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 27.46ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 79.1MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 209.82ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 69.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 3194.08ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 68.8MB in the beginning and 89.9MB in the end (delta: -21.0MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB.
* Witness Printer took 88.01ms. Allocated memory is still 201.3MB. Free memory was 89.9MB in the beginning and 85.4MB in the end (delta: 4.4MB). 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
- PositiveResult [Line: 19]: 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, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 237 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 161 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 76 mSDtfsCounter, 126 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 85 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=5, InterpolantAutomatonStates: 32, 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, 6 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 899 SizeOfPredicates, 2 NumberOfNonLiveVariables, 197 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 48/86 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, ConComCheckerStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 35]: Loop Invariant
Derived loop invariant: ((((b == a) && ((i % 2) == 0)) && ((((long long) a + 1) % 4294967296) == (((((unsigned long long) 4294967295 * i) + b) + j) % 4294967296))) || (flag == 0))
RESULT: Ultimate proved your program to be correct!
[2024-12-02 06:26:02,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c755c7c9-021a-4e20-8533-100338cffeb7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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