./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c883b81b24ce5a721aa9a1ff13aef8a0d532ba87d9e130e470a0b88a1f8e93e
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 00:59:50,586 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 00:59:50,651 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-11-24 00:59:50,660 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 00:59:50,660 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 00:59:50,699 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 00:59:50,700 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 00:59:50,700 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 00:59:50,700 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 00:59:50,701 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 00:59:50,701 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 00:59:50,702 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 00:59:50,702 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 00:59:50,702 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 00:59:50,702 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 00:59:50,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 00:59:50,702 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 00:59:50,703 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 00:59:50,703 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 00:59:50,703 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 00:59:50,703 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-24 00:59:50,704 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-24 00:59:50,704 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-24 00:59:50,704 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 00:59:50,704 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-24 00:59:50,704 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-24 00:59:50,704 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 00:59:50,704 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 00:59:50,704 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 00:59:50,704 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 00:59:50,705 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:59:50,705 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:59:50,705 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:59:50,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:59:50,705 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 00:59:50,706 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:59:50,706 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:59:50,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:59:50,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:59:50,706 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 00:59:50,706 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 00:59:50,706 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 00:59:50,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 00:59:50,706 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 00:59:50,707 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 00:59:50,707 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 00:59:50,707 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 00:59:50,707 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_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC
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 valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
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 -> 7c883b81b24ce5a721aa9a1ff13aef8a0d532ba87d9e130e470a0b88a1f8e93e
[2024-11-24 00:59:51,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 00:59:51,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 00:59:51,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 00:59:51,043 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 00:59:51,043 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 00:59:51,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i
[2024-11-24 00:59:54,057 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/data/48e983d1b/636b7d169f3a4b0fbc4fd57a0eb9f046/FLAGd834fe17b
[2024-11-24 00:59:54,463 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 00:59:54,464 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/sv-benchmarks/c/memsafety-bftpd/bftpd_2.i
[2024-11-24 00:59:54,485 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/data/48e983d1b/636b7d169f3a4b0fbc4fd57a0eb9f046/FLAGd834fe17b
[2024-11-24 00:59:54,510 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/data/48e983d1b/636b7d169f3a4b0fbc4fd57a0eb9f046
[2024-11-24 00:59:54,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 00:59:54,516 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 00:59:54,517 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 00:59:54,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 00:59:54,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 00:59:54,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:59:54" (1/1) ...
[2024-11-24 00:59:54,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2499aaf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:54, skipping insertion in model container
[2024-11-24 00:59:54,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:59:54" (1/1) ...
[2024-11-24 00:59:54,582 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 00:59:55,097 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-24 00:59:55,106 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:59:55,123 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 00:59:55,200 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:59:55,258 INFO L204 MainTranslator]: Completed translation
[2024-11-24 00:59:55,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:55 WrapperNode
[2024-11-24 00:59:55,259 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 00:59:55,260 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 00:59:55,262 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 00:59:55,262 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 00:59:55,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:55" (1/1) ...
[2024-11-24 00:59:55,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:55" (1/1) ...
[2024-11-24 00:59:55,336 INFO L138 Inliner]: procedures = 168, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 94
[2024-11-24 00:59:55,339 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 00:59:55,340 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 00:59:55,340 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 00:59:55,340 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 00:59:55,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:55" (1/1) ...
[2024-11-24 00:59:55,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:55" (1/1) ...
[2024-11-24 00:59:55,361 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:55" (1/1) ...
[2024-11-24 00:59:55,391 INFO L175 MemorySlicer]: Split 24 memory accesses to 3 slices as follows [6, 9, 9]. 38 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [6, 6, 9]. The 0 writes are split as follows [0, 0, 0].
[2024-11-24 00:59:55,392 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:55" (1/1) ...
[2024-11-24 00:59:55,392 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:55" (1/1) ...
[2024-11-24 00:59:55,407 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:55" (1/1) ...
[2024-11-24 00:59:55,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:55" (1/1) ...
[2024-11-24 00:59:55,420 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:55" (1/1) ...
[2024-11-24 00:59:55,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:55" (1/1) ...
[2024-11-24 00:59:55,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:55" (1/1) ...
[2024-11-24 00:59:55,425 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 00:59:55,426 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 00:59:55,426 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 00:59:55,426 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 00:59:55,428 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:55" (1/1) ...
[2024-11-24 00:59:55,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:59:55,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:59:55,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 00:59:55,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 00:59:55,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-24 00:59:55,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-24 00:59:55,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-24 00:59:55,525 INFO L130 BoogieDeclarations]: Found specification of procedure parse_input
[2024-11-24 00:59:55,525 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_input
[2024-11-24 00:59:55,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-24 00:59:55,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 00:59:55,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-24 00:59:55,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-24 00:59:55,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-24 00:59:55,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-24 00:59:55,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-24 00:59:55,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-24 00:59:55,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-11-24 00:59:55,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 00:59:55,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-24 00:59:55,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-24 00:59:55,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 00:59:55,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 00:59:55,688 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 00:59:55,691 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 00:59:56,032 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live.
[2024-11-24 00:59:56,032 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 00:59:56,046 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 00:59:56,047 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-24 00:59:56,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:59:56 BoogieIcfgContainer
[2024-11-24 00:59:56,048 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 00:59:56,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 00:59:56,053 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 00:59:56,060 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 00:59:56,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:59:54" (1/3) ...
[2024-11-24 00:59:56,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7196b76c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:59:56, skipping insertion in model container
[2024-11-24 00:59:56,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:59:55" (2/3) ...
[2024-11-24 00:59:56,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7196b76c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:59:56, skipping insertion in model container
[2024-11-24 00:59:56,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:59:56" (3/3) ...
[2024-11-24 00:59:56,064 INFO L128 eAbstractionObserver]: Analyzing ICFG bftpd_2.i
[2024-11-24 00:59:56,082 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 00:59:56,084 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bftpd_2.i that has 2 procedures, 62 locations, 1 initial locations, 1 loop locations, and 20 error locations.
[2024-11-24 00:59:56,138 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 00:59:56,153 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=None, 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;@467d4e01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 00:59:56,153 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations.
[2024-11-24 00:59:56,158 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 57 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-24 00:59:56,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-24 00:59:56,165 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:59:56,166 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-24 00:59:56,166 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 00:59:56,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:59:56,172 INFO L85 PathProgramCache]: Analyzing trace with hash -713284542, now seen corresponding path program 1 times
[2024-11-24 00:59:56,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:59:56,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966521949]
[2024-11-24 00:59:56,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:59:56,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:59:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:59:56,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:59:56,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:59:56,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966521949]
[2024-11-24 00:59:56,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966521949] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:59:56,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:59:56,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 00:59:56,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678047227]
[2024-11-24 00:59:56,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:59:56,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:59:56,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:59:56,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:59:56,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:59:56,695 INFO L87 Difference]: Start difference. First operand has 62 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 57 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:59:56,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:59:56,955 INFO L93 Difference]: Finished difference Result 127 states and 148 transitions.
[2024-11-24 00:59:56,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:59:56,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2024-11-24 00:59:56,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:59:56,972 INFO L225 Difference]: With dead ends: 127
[2024-11-24 00:59:56,972 INFO L226 Difference]: Without dead ends: 121
[2024-11-24 00:59:56,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:59:56,979 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 107 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-24 00:59:56,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 124 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-24 00:59:57,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states.
[2024-11-24 00:59:57,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 95.
[2024-11-24 00:59:57,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 68 states have (on average 1.588235294117647) internal successors, (108), 85 states have internal predecessors, (108), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12)
[2024-11-24 00:59:57,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 126 transitions.
[2024-11-24 00:59:57,065 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 126 transitions. Word has length 6
[2024-11-24 00:59:57,066 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:59:57,066 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 126 transitions.
[2024-11-24 00:59:57,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:59:57,066 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 126 transitions.
[2024-11-24 00:59:57,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-24 00:59:57,067 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:59:57,067 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-24 00:59:57,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 00:59:57,068 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 00:59:57,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:59:57,069 INFO L85 PathProgramCache]: Analyzing trace with hash -713284541, now seen corresponding path program 1 times
[2024-11-24 00:59:57,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:59:57,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388749970]
[2024-11-24 00:59:57,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:59:57,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:59:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:59:57,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:59:57,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:59:57,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388749970]
[2024-11-24 00:59:57,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388749970] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:59:57,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:59:57,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:59:57,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259711829]
[2024-11-24 00:59:57,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:59:57,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:59:57,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:59:57,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:59:57,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:59:57,413 INFO L87 Difference]: Start difference. First operand 95 states and 126 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:59:57,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:59:57,608 INFO L93 Difference]: Finished difference Result 196 states and 270 transitions.
[2024-11-24 00:59:57,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:59:57,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2024-11-24 00:59:57,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:59:57,612 INFO L225 Difference]: With dead ends: 196
[2024-11-24 00:59:57,612 INFO L226 Difference]: Without dead ends: 196
[2024-11-24 00:59:57,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:59:57,615 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 143 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-24 00:59:57,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 138 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-24 00:59:57,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states.
[2024-11-24 00:59:57,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 173.
[2024-11-24 00:59:57,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 138 states have (on average 1.6014492753623188) internal successors, (221), 155 states have internal predecessors, (221), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (34), 11 states have call predecessors, (34), 11 states have call successors, (34)
[2024-11-24 00:59:57,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 266 transitions.
[2024-11-24 00:59:57,654 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 266 transitions. Word has length 6
[2024-11-24 00:59:57,654 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:59:57,654 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 266 transitions.
[2024-11-24 00:59:57,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:59:57,655 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 266 transitions.
[2024-11-24 00:59:57,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-24 00:59:57,655 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:59:57,655 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:59:57,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 00:59:57,656 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 00:59:57,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:59:57,661 INFO L85 PathProgramCache]: Analyzing trace with hash -636984340, now seen corresponding path program 1 times
[2024-11-24 00:59:57,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:59:57,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432921434]
[2024-11-24 00:59:57,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:59:57,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:59:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:59:57,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:59:57,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:59:57,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432921434]
[2024-11-24 00:59:57,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432921434] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:59:57,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:59:57,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:59:57,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793107128]
[2024-11-24 00:59:57,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:59:57,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:59:57,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:59:57,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:59:57,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:59:57,957 INFO L87 Difference]: Start difference. First operand 173 states and 266 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:59:58,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:59:58,176 INFO L93 Difference]: Finished difference Result 213 states and 305 transitions.
[2024-11-24 00:59:58,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:59:58,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-11-24 00:59:58,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:59:58,179 INFO L225 Difference]: With dead ends: 213
[2024-11-24 00:59:58,179 INFO L226 Difference]: Without dead ends: 213
[2024-11-24 00:59:58,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:59:58,180 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 68 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-24 00:59:58,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 168 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-24 00:59:58,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states.
[2024-11-24 00:59:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 176.
[2024-11-24 00:59:58,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 141 states have (on average 1.5886524822695036) internal successors, (224), 158 states have internal predecessors, (224), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (34), 11 states have call predecessors, (34), 11 states have call successors, (34)
[2024-11-24 00:59:58,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 269 transitions.
[2024-11-24 00:59:58,204 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 269 transitions. Word has length 7
[2024-11-24 00:59:58,204 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:59:58,204 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 269 transitions.
[2024-11-24 00:59:58,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:59:58,205 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 269 transitions.
[2024-11-24 00:59:58,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-24 00:59:58,205 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:59:58,205 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:59:58,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-24 00:59:58,206 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 00:59:58,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:59:58,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1728321986, now seen corresponding path program 1 times
[2024-11-24 00:59:58,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:59:58,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983748063]
[2024-11-24 00:59:58,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:59:58,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:59:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:59:58,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:59:58,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:59:58,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983748063]
[2024-11-24 00:59:58,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983748063] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:59:58,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:59:58,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:59:58,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393347581]
[2024-11-24 00:59:58,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:59:58,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:59:58,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:59:58,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:59:58,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:59:58,570 INFO L87 Difference]: Start difference. First operand 176 states and 269 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:59:58,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:59:58,767 INFO L93 Difference]: Finished difference Result 198 states and 271 transitions.
[2024-11-24 00:59:58,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:59:58,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2024-11-24 00:59:58,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:59:58,771 INFO L225 Difference]: With dead ends: 198
[2024-11-24 00:59:58,771 INFO L226 Difference]: Without dead ends: 198
[2024-11-24 00:59:58,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:59:58,774 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 64 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-24 00:59:58,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 201 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-24 00:59:58,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states.
[2024-11-24 00:59:58,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 176.
[2024-11-24 00:59:58,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 141 states have (on average 1.574468085106383) internal successors, (222), 158 states have internal predecessors, (222), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (34), 11 states have call predecessors, (34), 11 states have call successors, (34)
[2024-11-24 00:59:58,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 267 transitions.
[2024-11-24 00:59:58,794 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 267 transitions. Word has length 8
[2024-11-24 00:59:58,794 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:59:58,794 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 267 transitions.
[2024-11-24 00:59:58,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:59:58,795 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 267 transitions.
[2024-11-24 00:59:58,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-24 00:59:58,799 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:59:58,799 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:59:58,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-24 00:59:58,800 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 00:59:58,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:59:58,800 INFO L85 PathProgramCache]: Analyzing trace with hash 2038374062, now seen corresponding path program 1 times
[2024-11-24 00:59:58,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:59:58,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073394031]
[2024-11-24 00:59:58,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:59:58,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:59:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:59:58,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:59:58,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:59:58,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073394031]
[2024-11-24 00:59:58,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073394031] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:59:58,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:59:58,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:59:58,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476502266]
[2024-11-24 00:59:58,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:59:58,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:59:58,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:59:58,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:59:58,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:59:58,914 INFO L87 Difference]: Start difference. First operand 176 states and 267 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:59:59,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:59:59,061 INFO L93 Difference]: Finished difference Result 256 states and 350 transitions.
[2024-11-24 00:59:59,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:59:59,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2024-11-24 00:59:59,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:59:59,063 INFO L225 Difference]: With dead ends: 256
[2024-11-24 00:59:59,063 INFO L226 Difference]: Without dead ends: 256
[2024-11-24 00:59:59,063 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:59:59,064 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 136 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:59:59,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 194 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:59:59,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states.
[2024-11-24 00:59:59,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 213.
[2024-11-24 00:59:59,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 176 states have (on average 1.5511363636363635) internal successors, (273), 194 states have internal predecessors, (273), 11 states have call successors, (11), 7 states have call predecessors, (11), 8 states have return successors, (34), 11 states have call predecessors, (34), 11 states have call successors, (34)
[2024-11-24 00:59:59,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 318 transitions.
[2024-11-24 00:59:59,089 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 318 transitions. Word has length 9
[2024-11-24 00:59:59,089 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:59:59,089 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 318 transitions.
[2024-11-24 00:59:59,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:59:59,090 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 318 transitions.
[2024-11-24 00:59:59,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-24 00:59:59,090 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:59:59,090 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:59:59,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-24 00:59:59,091 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting parse_inputErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 00:59:59,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:59:59,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1234913468, now seen corresponding path program 1 times
[2024-11-24 00:59:59,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:59:59,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441697437]
[2024-11-24 00:59:59,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:59:59,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:59:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:59:59,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:59:59,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:59:59,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441697437]
[2024-11-24 00:59:59,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441697437] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:59:59,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:59:59,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:59:59,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863922650]
[2024-11-24 00:59:59,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:59:59,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:59:59,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:59:59,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:59:59,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:59:59,287 INFO L87 Difference]: Start difference. First operand 213 states and 318 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:59:59,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:59:59,438 INFO L93 Difference]: Finished difference Result 251 states and 333 transitions.
[2024-11-24 00:59:59,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:59:59,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2024-11-24 00:59:59,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:59:59,441 INFO L225 Difference]: With dead ends: 251
[2024-11-24 00:59:59,441 INFO L226 Difference]: Without dead ends: 251
[2024-11-24 00:59:59,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:59:59,442 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 163 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:59:59,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 195 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:59:59,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states.
[2024-11-24 00:59:59,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 223.
[2024-11-24 00:59:59,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 185 states have (on average 1.545945945945946) internal successors, (286), 204 states have internal predecessors, (286), 11 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (34), 11 states have call predecessors, (34), 11 states have call successors, (34)
[2024-11-24 00:59:59,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 331 transitions.
[2024-11-24 00:59:59,475 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 331 transitions. Word has length 10
[2024-11-24 00:59:59,476 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:59:59,476 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 331 transitions.
[2024-11-24 00:59:59,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:59:59,476 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 331 transitions.
[2024-11-24 00:59:59,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-24 00:59:59,477 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 00:59:59,477 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:59:59,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-24 00:59:59,477 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 00:59:59,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:59:59,478 INFO L85 PathProgramCache]: Analyzing trace with hash -81492115, now seen corresponding path program 1 times
[2024-11-24 00:59:59,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:59:59,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080507766]
[2024-11-24 00:59:59,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:59:59,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:59:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:59:59,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:59:59,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:59:59,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080507766]
[2024-11-24 00:59:59,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080507766] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:59:59,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353055138]
[2024-11-24 00:59:59,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:59:59,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:59:59,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:59:59,744 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:59:59,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-24 00:59:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:59:59,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-24 00:59:59,859 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:00,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:00,179 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:00,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:00,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353055138] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:00:00,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 01:00:00,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 11
[2024-11-24 01:00:00,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547166025]
[2024-11-24 01:00:00,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:00,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-24 01:00:00,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:00,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-24 01:00:00,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156
[2024-11-24 01:00:00,424 INFO L87 Difference]: Start difference. First operand 223 states and 331 transitions. Second operand has 13 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:00,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:00,805 INFO L93 Difference]: Finished difference Result 246 states and 330 transitions.
[2024-11-24 01:00:00,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-24 01:00:00,806 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14
[2024-11-24 01:00:00,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:00,808 INFO L225 Difference]: With dead ends: 246
[2024-11-24 01:00:00,808 INFO L226 Difference]: Without dead ends: 246
[2024-11-24 01:00:00,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240
[2024-11-24 01:00:00,809 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 238 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:00,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 487 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-24 01:00:00,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states.
[2024-11-24 01:00:00,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 226.
[2024-11-24 01:00:00,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 188 states have (on average 1.4893617021276595) internal successors, (280), 207 states have internal predecessors, (280), 11 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (34), 11 states have call predecessors, (34), 11 states have call successors, (34)
[2024-11-24 01:00:00,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 325 transitions.
[2024-11-24 01:00:00,831 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 325 transitions. Word has length 14
[2024-11-24 01:00:00,832 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:00,832 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 325 transitions.
[2024-11-24 01:00:00,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:00,832 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 325 transitions.
[2024-11-24 01:00:00,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-24 01:00:00,833 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:00,833 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:00,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-24 01:00:01,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2024-11-24 01:00:01,038 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:01,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:01,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1768711682, now seen corresponding path program 1 times
[2024-11-24 01:00:01,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:01,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418942162]
[2024-11-24 01:00:01,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:01,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:01,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:01,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:01,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418942162]
[2024-11-24 01:00:01,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418942162] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:01,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905027901]
[2024-11-24 01:00:01,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:01,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:01,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:01,329 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:01,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-24 01:00:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:01,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:01,429 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:01,698 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:01,698 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:01,792 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:01,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905027901] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:00:01,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 01:00:01,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 12
[2024-11-24 01:00:01,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248519730]
[2024-11-24 01:00:01,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:01,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-24 01:00:01,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:01,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-24 01:00:01,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182
[2024-11-24 01:00:01,794 INFO L87 Difference]: Start difference. First operand 226 states and 325 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:02,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:02,187 INFO L93 Difference]: Finished difference Result 264 states and 360 transitions.
[2024-11-24 01:00:02,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-24 01:00:02,188 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2024-11-24 01:00:02,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:02,191 INFO L225 Difference]: With dead ends: 264
[2024-11-24 01:00:02,191 INFO L226 Difference]: Without dead ends: 264
[2024-11-24 01:00:02,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272
[2024-11-24 01:00:02,196 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 142 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:02,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 339 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-24 01:00:02,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states.
[2024-11-24 01:00:02,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 234.
[2024-11-24 01:00:02,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 196 states have (on average 1.4846938775510203) internal successors, (291), 215 states have internal predecessors, (291), 11 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (34), 11 states have call predecessors, (34), 11 states have call successors, (34)
[2024-11-24 01:00:02,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 336 transitions.
[2024-11-24 01:00:02,211 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 336 transitions. Word has length 15
[2024-11-24 01:00:02,211 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:02,211 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 336 transitions.
[2024-11-24 01:00:02,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:02,211 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 336 transitions.
[2024-11-24 01:00:02,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-11-24 01:00:02,211 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:02,211 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:02,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-24 01:00:02,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:02,412 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:02,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:02,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1004512660, now seen corresponding path program 1 times
[2024-11-24 01:00:02,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:02,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116691305]
[2024-11-24 01:00:02,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:02,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:02,693 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:02,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:02,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116691305]
[2024-11-24 01:00:02,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116691305] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:02,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388682809]
[2024-11-24 01:00:02,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:02,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:02,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:02,696 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:02,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-24 01:00:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:02,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:02,777 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:03,097 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:03,097 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:03,286 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:03,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388682809] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:00:03,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 01:00:03,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 13
[2024-11-24 01:00:03,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156362573]
[2024-11-24 01:00:03,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:03,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-24 01:00:03,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:03,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-24 01:00:03,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210
[2024-11-24 01:00:03,289 INFO L87 Difference]: Start difference. First operand 234 states and 336 transitions. Second operand has 15 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:03,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:03,961 INFO L93 Difference]: Finished difference Result 394 states and 540 transitions.
[2024-11-24 01:00:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-24 01:00:03,963 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2024-11-24 01:00:03,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:03,965 INFO L225 Difference]: With dead ends: 394
[2024-11-24 01:00:03,965 INFO L226 Difference]: Without dead ends: 394
[2024-11-24 01:00:03,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506
[2024-11-24 01:00:03,969 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 259 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:03,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 491 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-24 01:00:03,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states.
[2024-11-24 01:00:03,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 332.
[2024-11-24 01:00:03,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 288 states have (on average 1.5243055555555556) internal successors, (439), 307 states have internal predecessors, (439), 14 states have call successors, (14), 10 states have call predecessors, (14), 12 states have return successors, (50), 14 states have call predecessors, (50), 14 states have call successors, (50)
[2024-11-24 01:00:03,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 503 transitions.
[2024-11-24 01:00:03,997 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 503 transitions. Word has length 16
[2024-11-24 01:00:03,998 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:03,998 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 503 transitions.
[2024-11-24 01:00:03,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:03,999 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 503 transitions.
[2024-11-24 01:00:03,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2024-11-24 01:00:03,999 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:03,999 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:04,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-24 01:00:04,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:04,200 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting parse_inputErr10ASSERT_VIOLATIONMEMORY_FREE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:04,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:04,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1915949067, now seen corresponding path program 1 times
[2024-11-24 01:00:04,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:04,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744655130]
[2024-11-24 01:00:04,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:04,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:04,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:04,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:04,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744655130]
[2024-11-24 01:00:04,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744655130] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:00:04,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:00:04,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:00:04,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742376428]
[2024-11-24 01:00:04,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:00:04,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:00:04,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:04,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:00:04,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:00:04,300 INFO L87 Difference]: Start difference. First operand 332 states and 503 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:04,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:04,339 INFO L93 Difference]: Finished difference Result 344 states and 490 transitions.
[2024-11-24 01:00:04,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:00:04,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2024-11-24 01:00:04,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:04,341 INFO L225 Difference]: With dead ends: 344
[2024-11-24 01:00:04,341 INFO L226 Difference]: Without dead ends: 344
[2024-11-24 01:00:04,342 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
[2024-11-24 01:00:04,342 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 27 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:04,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 114 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:00:04,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states.
[2024-11-24 01:00:04,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 335.
[2024-11-24 01:00:04,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 294 states have (on average 1.510204081632653) internal successors, (444), 315 states have internal predecessors, (444), 11 states have call successors, (11), 8 states have call predecessors, (11), 12 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33)
[2024-11-24 01:00:04,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 488 transitions.
[2024-11-24 01:00:04,365 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 488 transitions. Word has length 18
[2024-11-24 01:00:04,366 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:04,366 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 488 transitions.
[2024-11-24 01:00:04,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:04,366 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 488 transitions.
[2024-11-24 01:00:04,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-11-24 01:00:04,367 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:04,367 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:04,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-24 01:00:04,367 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:04,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:04,368 INFO L85 PathProgramCache]: Analyzing trace with hash 774696235, now seen corresponding path program 1 times
[2024-11-24 01:00:04,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:04,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134618946]
[2024-11-24 01:00:04,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:04,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:04,405 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:04,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:04,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134618946]
[2024-11-24 01:00:04,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134618946] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:00:04,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:00:04,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:00:04,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781911278]
[2024-11-24 01:00:04,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:00:04,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:00:04,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:04,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:00:04,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:00:04,408 INFO L87 Difference]: Start difference. First operand 335 states and 488 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:00:04,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:04,416 INFO L93 Difference]: Finished difference Result 259 states and 364 transitions.
[2024-11-24 01:00:04,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:00:04,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25
[2024-11-24 01:00:04,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:04,418 INFO L225 Difference]: With dead ends: 259
[2024-11-24 01:00:04,418 INFO L226 Difference]: Without dead ends: 259
[2024-11-24 01:00:04,418 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
[2024-11-24 01:00:04,418 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 9 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 116 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
[2024-11-24 01:00:04,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 116 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:00:04,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states.
[2024-11-24 01:00:04,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259.
[2024-11-24 01:00:04,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 224 states have (on average 1.4910714285714286) internal successors, (334), 244 states have internal predecessors, (334), 8 states have call successors, (8), 6 states have call predecessors, (8), 9 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22)
[2024-11-24 01:00:04,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 364 transitions.
[2024-11-24 01:00:04,430 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 364 transitions. Word has length 25
[2024-11-24 01:00:04,430 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:04,430 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 364 transitions.
[2024-11-24 01:00:04,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:00:04,430 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 364 transitions.
[2024-11-24 01:00:04,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2024-11-24 01:00:04,431 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:04,431 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:04,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-24 01:00:04,431 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:04,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:04,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1328994673, now seen corresponding path program 1 times
[2024-11-24 01:00:04,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:04,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761044618]
[2024-11-24 01:00:04,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:04,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:04,810 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:04,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:04,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761044618]
[2024-11-24 01:00:04,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761044618] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:04,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618301899]
[2024-11-24 01:00:04,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:04,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:04,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:04,813 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:04,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-24 01:00:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:04,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:04,897 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:05,270 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-24 01:00:05,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-24 01:00:05,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:05,364 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:05,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618301899] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:05,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:00:05,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 12
[2024-11-24 01:00:05,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353287597]
[2024-11-24 01:00:05,586 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:05,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-24 01:00:05,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:05,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-24 01:00:05,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272
[2024-11-24 01:00:05,590 INFO L87 Difference]: Start difference. First operand 259 states and 364 transitions. Second operand has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 11 states have internal predecessors, (48), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:00:06,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:06,173 INFO L93 Difference]: Finished difference Result 290 states and 387 transitions.
[2024-11-24 01:00:06,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-24 01:00:06,174 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 11 states have internal predecessors, (48), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27
[2024-11-24 01:00:06,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:06,176 INFO L225 Difference]: With dead ends: 290
[2024-11-24 01:00:06,177 INFO L226 Difference]: Without dead ends: 290
[2024-11-24 01:00:06,177 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=181, Invalid=521, Unknown=0, NotChecked=0, Total=702
[2024-11-24 01:00:06,178 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 292 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:06,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 187 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-24 01:00:06,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states.
[2024-11-24 01:00:06,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 280.
[2024-11-24 01:00:06,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 241 states have (on average 1.4439834024896265) internal successors, (348), 265 states have internal predecessors, (348), 8 states have call successors, (8), 6 states have call predecessors, (8), 13 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26)
[2024-11-24 01:00:06,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 382 transitions.
[2024-11-24 01:00:06,195 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 382 transitions. Word has length 27
[2024-11-24 01:00:06,195 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:06,195 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 382 transitions.
[2024-11-24 01:00:06,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 11 states have internal predecessors, (48), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:00:06,196 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 382 transitions.
[2024-11-24 01:00:06,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2024-11-24 01:00:06,196 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:06,196 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:06,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-24 01:00:06,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:06,397 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:06,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:06,398 INFO L85 PathProgramCache]: Analyzing trace with hash -2144774448, now seen corresponding path program 1 times
[2024-11-24 01:00:06,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:06,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493670889]
[2024-11-24 01:00:06,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:06,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:06,531 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:06,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:06,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493670889]
[2024-11-24 01:00:06,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493670889] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:06,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520506905]
[2024-11-24 01:00:06,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:06,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:06,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:06,534 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:06,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-24 01:00:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:06,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:06,613 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:06,769 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:06,769 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:00:06,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520506905] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:00:06,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 01:00:06,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 9
[2024-11-24 01:00:06,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227136711]
[2024-11-24 01:00:06,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:00:06,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-24 01:00:06,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:06,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-24 01:00:06,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-11-24 01:00:06,771 INFO L87 Difference]: Start difference. First operand 280 states and 382 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:00:06,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:06,852 INFO L93 Difference]: Finished difference Result 299 states and 397 transitions.
[2024-11-24 01:00:06,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-24 01:00:06,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28
[2024-11-24 01:00:06,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:06,855 INFO L225 Difference]: With dead ends: 299
[2024-11-24 01:00:06,855 INFO L226 Difference]: Without dead ends: 299
[2024-11-24 01:00:06,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-11-24 01:00:06,856 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 76 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:06,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 189 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:00:06,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states.
[2024-11-24 01:00:06,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 288.
[2024-11-24 01:00:06,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 249 states have (on average 1.429718875502008) internal successors, (356), 273 states have internal predecessors, (356), 8 states have call successors, (8), 6 states have call predecessors, (8), 13 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26)
[2024-11-24 01:00:06,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 390 transitions.
[2024-11-24 01:00:06,872 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 390 transitions. Word has length 28
[2024-11-24 01:00:06,872 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:06,872 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 390 transitions.
[2024-11-24 01:00:06,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:00:06,873 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 390 transitions.
[2024-11-24 01:00:06,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2024-11-24 01:00:06,875 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:06,875 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:06,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-24 01:00:07,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:07,076 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:07,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:07,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1558595314, now seen corresponding path program 1 times
[2024-11-24 01:00:07,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:07,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321508577]
[2024-11-24 01:00:07,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:07,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:07,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:07,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321508577]
[2024-11-24 01:00:07,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321508577] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:07,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031249593]
[2024-11-24 01:00:07,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:07,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:07,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:07,733 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:07,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-24 01:00:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:07,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 25 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:07,839 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:08,328 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-24 01:00:08,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-24 01:00:08,475 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:08,475 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:08,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031249593] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:08,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:00:08,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 17
[2024-11-24 01:00:08,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312135888]
[2024-11-24 01:00:08,683 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:08,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-11-24 01:00:08,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:08,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-11-24 01:00:08,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420
[2024-11-24 01:00:08,685 INFO L87 Difference]: Start difference. First operand 288 states and 390 transitions. Second operand has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 15 states have internal predecessors, (52), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:00:09,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:09,265 INFO L93 Difference]: Finished difference Result 295 states and 389 transitions.
[2024-11-24 01:00:09,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-24 01:00:09,265 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 15 states have internal predecessors, (52), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29
[2024-11-24 01:00:09,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:09,267 INFO L225 Difference]: With dead ends: 295
[2024-11-24 01:00:09,267 INFO L226 Difference]: Without dead ends: 295
[2024-11-24 01:00:09,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812
[2024-11-24 01:00:09,268 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 255 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:09,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 168 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-24 01:00:09,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states.
[2024-11-24 01:00:09,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 288.
[2024-11-24 01:00:09,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 249 states have (on average 1.4136546184738956) internal successors, (352), 273 states have internal predecessors, (352), 8 states have call successors, (8), 6 states have call predecessors, (8), 13 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26)
[2024-11-24 01:00:09,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 386 transitions.
[2024-11-24 01:00:09,280 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 386 transitions. Word has length 29
[2024-11-24 01:00:09,281 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:09,281 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 386 transitions.
[2024-11-24 01:00:09,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 15 states have internal predecessors, (52), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:00:09,281 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 386 transitions.
[2024-11-24 01:00:09,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2024-11-24 01:00:09,282 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:09,282 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:09,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-24 01:00:09,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:09,486 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:09,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:09,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1071814430, now seen corresponding path program 1 times
[2024-11-24 01:00:09,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:09,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509087962]
[2024-11-24 01:00:09,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:09,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:09,735 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:09,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:09,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509087962]
[2024-11-24 01:00:09,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509087962] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:09,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557783235]
[2024-11-24 01:00:09,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:09,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:09,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:09,738 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:09,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-24 01:00:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:09,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:09,829 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:09,951 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size
[2024-11-24 01:00:09,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16
[2024-11-24 01:00:10,011 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:10,011 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:10,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557783235] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:10,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:00:10,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10
[2024-11-24 01:00:10,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17630828]
[2024-11-24 01:00:10,075 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:10,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-24 01:00:10,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:10,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-24 01:00:10,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156
[2024-11-24 01:00:10,077 INFO L87 Difference]: Start difference. First operand 288 states and 386 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-24 01:00:10,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:10,527 INFO L93 Difference]: Finished difference Result 415 states and 517 transitions.
[2024-11-24 01:00:10,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-24 01:00:10,528 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30
[2024-11-24 01:00:10,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:10,530 INFO L225 Difference]: With dead ends: 415
[2024-11-24 01:00:10,530 INFO L226 Difference]: Without dead ends: 415
[2024-11-24 01:00:10,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462
[2024-11-24 01:00:10,531 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 433 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:10,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 360 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-24 01:00:10,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states.
[2024-11-24 01:00:10,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 370.
[2024-11-24 01:00:10,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 328 states have (on average 1.3689024390243902) internal successors, (449), 353 states have internal predecessors, (449), 8 states have call successors, (8), 8 states have call predecessors, (8), 16 states have return successors, (25), 8 states have call predecessors, (25), 8 states have call successors, (25)
[2024-11-24 01:00:10,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 482 transitions.
[2024-11-24 01:00:10,545 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 482 transitions. Word has length 30
[2024-11-24 01:00:10,545 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:10,545 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 482 transitions.
[2024-11-24 01:00:10,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-24 01:00:10,546 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 482 transitions.
[2024-11-24 01:00:10,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-11-24 01:00:10,546 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:10,546 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:10,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-24 01:00:10,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2024-11-24 01:00:10,748 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting parse_inputErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:10,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:10,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1133491088, now seen corresponding path program 1 times
[2024-11-24 01:00:10,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:10,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980892354]
[2024-11-24 01:00:10,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:10,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:11,018 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:11,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:11,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980892354]
[2024-11-24 01:00:11,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980892354] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:11,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493590612]
[2024-11-24 01:00:11,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:11,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:11,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:11,024 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:11,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-24 01:00:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:11,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:11,112 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:11,275 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-24 01:00:11,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-24 01:00:11,375 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:11,375 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:11,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493590612] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:11,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:00:11,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 13
[2024-11-24 01:00:11,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979538755]
[2024-11-24 01:00:11,529 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:11,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-24 01:00:11,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:11,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-24 01:00:11,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342
[2024-11-24 01:00:11,530 INFO L87 Difference]: Start difference. First operand 370 states and 482 transitions. Second operand has 15 states, 12 states have (on average 4.666666666666667) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:00:12,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:12,414 INFO L93 Difference]: Finished difference Result 436 states and 532 transitions.
[2024-11-24 01:00:12,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2024-11-24 01:00:12,415 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.666666666666667) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31
[2024-11-24 01:00:12,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:12,418 INFO L225 Difference]: With dead ends: 436
[2024-11-24 01:00:12,418 INFO L226 Difference]: Without dead ends: 436
[2024-11-24 01:00:12,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=279, Invalid=843, Unknown=0, NotChecked=0, Total=1122
[2024-11-24 01:00:12,420 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 558 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:12,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 392 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-24 01:00:12,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states.
[2024-11-24 01:00:12,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 386.
[2024-11-24 01:00:12,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 343 states have (on average 1.3760932944606414) internal successors, (472), 369 states have internal predecessors, (472), 8 states have call successors, (8), 8 states have call predecessors, (8), 17 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21)
[2024-11-24 01:00:12,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 501 transitions.
[2024-11-24 01:00:12,438 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 501 transitions. Word has length 31
[2024-11-24 01:00:12,438 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:12,438 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 501 transitions.
[2024-11-24 01:00:12,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.666666666666667) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:00:12,439 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 501 transitions.
[2024-11-24 01:00:12,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2024-11-24 01:00:12,439 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:12,439 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:12,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2024-11-24 01:00:12,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:12,645 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:12,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:12,646 INFO L85 PathProgramCache]: Analyzing trace with hash -962560583, now seen corresponding path program 1 times
[2024-11-24 01:00:12,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:12,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874533030]
[2024-11-24 01:00:12,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:12,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:12,972 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:12,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:12,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874533030]
[2024-11-24 01:00:12,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874533030] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:12,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318121339]
[2024-11-24 01:00:12,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:12,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:12,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:12,977 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:12,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-24 01:00:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:13,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:13,070 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:13,413 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-24 01:00:13,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-24 01:00:13,594 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:13,595 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:13,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318121339] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:13,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:00:13,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 15
[2024-11-24 01:00:13,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133074807]
[2024-11-24 01:00:13,828 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:13,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-24 01:00:13,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:13,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-24 01:00:13,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420
[2024-11-24 01:00:13,830 INFO L87 Difference]: Start difference. First operand 386 states and 501 transitions. Second operand has 17 states, 16 states have (on average 4.0) internal successors, (64), 14 states have internal predecessors, (64), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:00:14,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:14,535 INFO L93 Difference]: Finished difference Result 403 states and 501 transitions.
[2024-11-24 01:00:14,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-11-24 01:00:14,536 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.0) internal successors, (64), 14 states have internal predecessors, (64), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35
[2024-11-24 01:00:14,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:14,538 INFO L225 Difference]: With dead ends: 403
[2024-11-24 01:00:14,538 INFO L226 Difference]: Without dead ends: 403
[2024-11-24 01:00:14,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=235, Invalid=821, Unknown=0, NotChecked=0, Total=1056
[2024-11-24 01:00:14,539 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 371 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:14,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 291 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-24 01:00:14,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states.
[2024-11-24 01:00:14,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 385.
[2024-11-24 01:00:14,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 345 states have (on average 1.318840579710145) internal successors, (455), 368 states have internal predecessors, (455), 8 states have call successors, (8), 8 states have call predecessors, (8), 17 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21)
[2024-11-24 01:00:14,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 484 transitions.
[2024-11-24 01:00:14,553 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 484 transitions. Word has length 35
[2024-11-24 01:00:14,554 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:14,554 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 484 transitions.
[2024-11-24 01:00:14,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.0) internal successors, (64), 14 states have internal predecessors, (64), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:00:14,554 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 484 transitions.
[2024-11-24 01:00:14,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2024-11-24 01:00:14,555 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:14,555 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:14,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-11-24 01:00:14,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-11-24 01:00:14,759 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting parse_inputErr16ASSERT_VIOLATIONMEMORY_FREE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:14,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:14,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1198975028, now seen corresponding path program 1 times
[2024-11-24 01:00:14,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:14,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356750287]
[2024-11-24 01:00:14,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:14,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:14,851 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:14,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:14,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356750287]
[2024-11-24 01:00:14,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356750287] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:14,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2692676]
[2024-11-24 01:00:14,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:14,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:14,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:14,854 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:14,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-24 01:00:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:14,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:14,958 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:15,007 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:15,008 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:15,059 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:15,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2692676] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:00:15,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 01:00:15,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3
[2024-11-24 01:00:15,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313617963]
[2024-11-24 01:00:15,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:15,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:00:15,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:15,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:00:15,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:00:15,062 INFO L87 Difference]: Start difference. First operand 385 states and 484 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:00:15,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:15,092 INFO L93 Difference]: Finished difference Result 383 states and 478 transitions.
[2024-11-24 01:00:15,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:00:15,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40
[2024-11-24 01:00:15,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:15,094 INFO L225 Difference]: With dead ends: 383
[2024-11-24 01:00:15,094 INFO L226 Difference]: Without dead ends: 383
[2024-11-24 01:00:15,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:00:15,095 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 44 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:15,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 98 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:00:15,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states.
[2024-11-24 01:00:15,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383.
[2024-11-24 01:00:15,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 345 states have (on average 1.3014492753623188) internal successors, (449), 366 states have internal predecessors, (449), 8 states have call successors, (8), 8 states have call predecessors, (8), 17 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21)
[2024-11-24 01:00:15,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 478 transitions.
[2024-11-24 01:00:15,112 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 478 transitions. Word has length 40
[2024-11-24 01:00:15,113 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:15,113 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 478 transitions.
[2024-11-24 01:00:15,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:00:15,113 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 478 transitions.
[2024-11-24 01:00:15,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2024-11-24 01:00:15,114 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:15,114 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:15,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-11-24 01:00:15,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2024-11-24 01:00:15,318 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting parse_inputErr17ASSERT_VIOLATIONMEMORY_FREE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:15,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:15,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1486479697, now seen corresponding path program 1 times
[2024-11-24 01:00:15,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:15,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264485351]
[2024-11-24 01:00:15,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:15,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:15,421 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:15,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:15,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264485351]
[2024-11-24 01:00:15,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264485351] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:15,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532271968]
[2024-11-24 01:00:15,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:15,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:15,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:15,425 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:15,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-24 01:00:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:15,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:15,534 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:15,598 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:15,599 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:15,681 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:15,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532271968] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:00:15,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 01:00:15,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3
[2024-11-24 01:00:15,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744198882]
[2024-11-24 01:00:15,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:15,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:00:15,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:15,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:00:15,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:00:15,684 INFO L87 Difference]: Start difference. First operand 383 states and 478 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:00:15,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:15,738 INFO L93 Difference]: Finished difference Result 381 states and 472 transitions.
[2024-11-24 01:00:15,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:00:15,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41
[2024-11-24 01:00:15,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:15,741 INFO L225 Difference]: With dead ends: 381
[2024-11-24 01:00:15,741 INFO L226 Difference]: Without dead ends: 381
[2024-11-24 01:00:15,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 78 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:00:15,743 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 40 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:15,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 77 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:00:15,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states.
[2024-11-24 01:00:15,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381.
[2024-11-24 01:00:15,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 345 states have (on average 1.2840579710144928) internal successors, (443), 364 states have internal predecessors, (443), 8 states have call successors, (8), 8 states have call predecessors, (8), 17 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21)
[2024-11-24 01:00:15,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 472 transitions.
[2024-11-24 01:00:15,756 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 472 transitions. Word has length 41
[2024-11-24 01:00:15,757 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:15,757 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 472 transitions.
[2024-11-24 01:00:15,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:00:15,757 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 472 transitions.
[2024-11-24 01:00:15,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2024-11-24 01:00:15,758 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:15,758 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:15,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-11-24 01:00:15,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:15,962 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting parse_inputErr18ASSERT_VIOLATIONMEMORY_FREE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:15,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:15,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1163769750, now seen corresponding path program 1 times
[2024-11-24 01:00:15,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:15,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406134576]
[2024-11-24 01:00:15,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:15,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:16,112 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:16,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:16,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406134576]
[2024-11-24 01:00:16,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406134576] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:16,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348522926]
[2024-11-24 01:00:16,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:16,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:16,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:16,116 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:16,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-24 01:00:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:16,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:16,212 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:16,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-24 01:00:16,271 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2024-11-24 01:00:16,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14
[2024-11-24 01:00:16,287 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:16,287 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:16,358 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:16,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348522926] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:00:16,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 01:00:16,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3
[2024-11-24 01:00:16,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276354495]
[2024-11-24 01:00:16,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:16,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:00:16,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:16,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:00:16,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:00:16,359 INFO L87 Difference]: Start difference. First operand 381 states and 472 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:00:16,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:16,463 INFO L93 Difference]: Finished difference Result 409 states and 499 transitions.
[2024-11-24 01:00:16,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 01:00:16,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42
[2024-11-24 01:00:16,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:16,465 INFO L225 Difference]: With dead ends: 409
[2024-11-24 01:00:16,465 INFO L226 Difference]: Without dead ends: 409
[2024-11-24 01:00:16,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:00:16,467 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 32 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:16,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 136 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:00:16,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states.
[2024-11-24 01:00:16,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 381.
[2024-11-24 01:00:16,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 345 states have (on average 1.2782608695652173) internal successors, (441), 364 states have internal predecessors, (441), 8 states have call successors, (8), 8 states have call predecessors, (8), 17 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21)
[2024-11-24 01:00:16,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 470 transitions.
[2024-11-24 01:00:16,485 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 470 transitions. Word has length 42
[2024-11-24 01:00:16,486 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:16,486 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 470 transitions.
[2024-11-24 01:00:16,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:00:16,486 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 470 transitions.
[2024-11-24 01:00:16,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2024-11-24 01:00:16,487 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:16,487 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:16,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-11-24 01:00:16,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:16,688 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:16,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:16,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1143744414, now seen corresponding path program 1 times
[2024-11-24 01:00:16,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:16,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149748846]
[2024-11-24 01:00:16,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:16,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:16,780 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 01:00:16,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:16,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149748846]
[2024-11-24 01:00:16,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149748846] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:16,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237242078]
[2024-11-24 01:00:16,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:16,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:16,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:16,784 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:16,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-24 01:00:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:16,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:16,884 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:16,919 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 01:00:16,920 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:00:16,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237242078] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:00:16,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 01:00:16,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6
[2024-11-24 01:00:16,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551639327]
[2024-11-24 01:00:16,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:00:16,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 01:00:16,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:16,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 01:00:16,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-24 01:00:16,921 INFO L87 Difference]: Start difference. First operand 381 states and 470 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:00:16,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:16,950 INFO L93 Difference]: Finished difference Result 374 states and 449 transitions.
[2024-11-24 01:00:16,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 01:00:16,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45
[2024-11-24 01:00:16,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:16,953 INFO L225 Difference]: With dead ends: 374
[2024-11-24 01:00:16,953 INFO L226 Difference]: Without dead ends: 374
[2024-11-24 01:00:16,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-24 01:00:16,954 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 15 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:16,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 159 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:00:16,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states.
[2024-11-24 01:00:16,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 372.
[2024-11-24 01:00:16,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 336 states have (on average 1.25) internal successors, (420), 355 states have internal predecessors, (420), 8 states have call successors, (8), 8 states have call predecessors, (8), 17 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21)
[2024-11-24 01:00:16,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 449 transitions.
[2024-11-24 01:00:16,969 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 449 transitions. Word has length 45
[2024-11-24 01:00:16,969 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:16,970 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 449 transitions.
[2024-11-24 01:00:16,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:00:16,970 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 449 transitions.
[2024-11-24 01:00:16,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2024-11-24 01:00:16,971 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:16,971 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:16,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2024-11-24 01:00:17,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:17,172 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting parse_inputErr10ASSERT_VIOLATIONMEMORY_FREE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:17,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:17,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1258219649, now seen corresponding path program 1 times
[2024-11-24 01:00:17,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:17,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061743318]
[2024-11-24 01:00:17,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:17,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:17,226 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2024-11-24 01:00:17,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:17,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061743318]
[2024-11-24 01:00:17,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061743318] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:00:17,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:00:17,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:00:17,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656486097]
[2024-11-24 01:00:17,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:00:17,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:00:17,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:17,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:00:17,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:00:17,228 INFO L87 Difference]: Start difference. First operand 372 states and 449 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:00:17,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:17,235 INFO L93 Difference]: Finished difference Result 306 states and 356 transitions.
[2024-11-24 01:00:17,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:00:17,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 47
[2024-11-24 01:00:17,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:17,241 INFO L225 Difference]: With dead ends: 306
[2024-11-24 01:00:17,241 INFO L226 Difference]: Without dead ends: 306
[2024-11-24 01:00:17,242 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
[2024-11-24 01:00:17,243 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 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
[2024-11-24 01:00:17,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:00:17,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states.
[2024-11-24 01:00:17,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 303.
[2024-11-24 01:00:17,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 277 states have (on average 1.2021660649819494) internal successors, (333), 288 states have internal predecessors, (333), 7 states have call successors, (7), 7 states have call predecessors, (7), 12 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13)
[2024-11-24 01:00:17,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 353 transitions.
[2024-11-24 01:00:17,259 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 353 transitions. Word has length 47
[2024-11-24 01:00:17,259 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:17,259 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 353 transitions.
[2024-11-24 01:00:17,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:00:17,260 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 353 transitions.
[2024-11-24 01:00:17,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2024-11-24 01:00:17,260 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:17,260 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:17,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-11-24 01:00:17,261 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:17,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:17,262 INFO L85 PathProgramCache]: Analyzing trace with hash -524851487, now seen corresponding path program 1 times
[2024-11-24 01:00:17,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:17,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252512483]
[2024-11-24 01:00:17,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:17,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:17,567 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:17,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:17,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252512483]
[2024-11-24 01:00:17,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252512483] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:17,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529823034]
[2024-11-24 01:00:17,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:17,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:17,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:17,570 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:17,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-11-24 01:00:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:17,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:17,792 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:17,979 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-24 01:00:17,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-24 01:00:18,160 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size
[2024-11-24 01:00:18,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16
[2024-11-24 01:00:18,208 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-24 01:00:18,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-11-24 01:00:18,278 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:18,278 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:18,335 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-24 01:00:18,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 53
[2024-11-24 01:00:18,600 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-24 01:00:18,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 53
[2024-11-24 01:00:18,828 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:18,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529823034] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:00:18,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 01:00:18,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 10] total 25
[2024-11-24 01:00:18,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044120879]
[2024-11-24 01:00:18,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:18,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states
[2024-11-24 01:00:18,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:18,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants.
[2024-11-24 01:00:18,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650
[2024-11-24 01:00:18,831 INFO L87 Difference]: Start difference. First operand 303 states and 353 transitions. Second operand has 26 states, 24 states have (on average 5.625) internal successors, (135), 25 states have internal predecessors, (135), 6 states have call successors, (8), 8 states have call predecessors, (8), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6)
[2024-11-24 01:00:19,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:19,084 INFO L93 Difference]: Finished difference Result 308 states and 358 transitions.
[2024-11-24 01:00:19,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-24 01:00:19,085 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 5.625) internal successors, (135), 25 states have internal predecessors, (135), 6 states have call successors, (8), 8 states have call predecessors, (8), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 51
[2024-11-24 01:00:19,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:19,087 INFO L225 Difference]: With dead ends: 308
[2024-11-24 01:00:19,087 INFO L226 Difference]: Without dead ends: 308
[2024-11-24 01:00:19,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=181, Invalid=689, Unknown=0, NotChecked=0, Total=870
[2024-11-24 01:00:19,088 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 294 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:19,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 161 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-24 01:00:19,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states.
[2024-11-24 01:00:19,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 302.
[2024-11-24 01:00:19,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 277 states have (on average 1.1985559566787003) internal successors, (332), 287 states have internal predecessors, (332), 7 states have call successors, (7), 7 states have call predecessors, (7), 12 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13)
[2024-11-24 01:00:19,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 352 transitions.
[2024-11-24 01:00:19,097 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 352 transitions. Word has length 51
[2024-11-24 01:00:19,097 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:19,097 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 352 transitions.
[2024-11-24 01:00:19,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 5.625) internal successors, (135), 25 states have internal predecessors, (135), 6 states have call successors, (8), 8 states have call predecessors, (8), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6)
[2024-11-24 01:00:19,097 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 352 transitions.
[2024-11-24 01:00:19,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2024-11-24 01:00:19,098 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:19,098 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:19,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-11-24 01:00:19,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22
[2024-11-24 01:00:19,301 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:19,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:19,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1662380178, now seen corresponding path program 1 times
[2024-11-24 01:00:19,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:19,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263021222]
[2024-11-24 01:00:19,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:19,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:19,381 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 25 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:19,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:19,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263021222]
[2024-11-24 01:00:19,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263021222] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:19,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835559619]
[2024-11-24 01:00:19,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:19,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:19,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:19,384 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:19,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-11-24 01:00:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:19,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:19,511 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:19,574 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_parse_input_c1_~x~0#1.base_77| Int)) (and (<= |v_parse_input_c1_~x~0#1.base_77| c_~global~0.base) (= |c_#valid| (store |c_old(#valid)| |v_parse_input_c1_~x~0#1.base_77| (select |c_#valid| |v_parse_input_c1_~x~0#1.base_77|))))) is different from true
[2024-11-24 01:00:19,613 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-24 01:00:19,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-11-24 01:00:19,817 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size
[2024-11-24 01:00:19,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16
[2024-11-24 01:00:19,877 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked.
[2024-11-24 01:00:19,878 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:20,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835559619] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:20,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:00:20,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10] total 16
[2024-11-24 01:00:20,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754438567]
[2024-11-24 01:00:20,007 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:20,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-11-24 01:00:20,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:20,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-11-24 01:00:20,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=260, Unknown=1, NotChecked=32, Total=342
[2024-11-24 01:00:20,008 INFO L87 Difference]: Start difference. First operand 302 states and 352 transitions. Second operand has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 14 states have internal predecessors, (92), 5 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-24 01:00:20,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:20,917 INFO L93 Difference]: Finished difference Result 279 states and 310 transitions.
[2024-11-24 01:00:20,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2024-11-24 01:00:20,918 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 14 states have internal predecessors, (92), 5 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 51
[2024-11-24 01:00:20,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:20,919 INFO L225 Difference]: With dead ends: 279
[2024-11-24 01:00:20,919 INFO L226 Difference]: Without dead ends: 279
[2024-11-24 01:00:20,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=282, Invalid=1053, Unknown=1, NotChecked=70, Total=1406
[2024-11-24 01:00:20,921 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 343 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 172 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:20,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 441 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 404 Invalid, 0 Unknown, 172 Unchecked, 0.4s Time]
[2024-11-24 01:00:20,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states.
[2024-11-24 01:00:20,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 262.
[2024-11-24 01:00:20,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 241 states have (on average 1.170124481327801) internal successors, (282), 249 states have internal predecessors, (282), 6 states have call successors, (6), 6 states have call predecessors, (6), 9 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9)
[2024-11-24 01:00:20,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 297 transitions.
[2024-11-24 01:00:20,930 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 297 transitions. Word has length 51
[2024-11-24 01:00:20,930 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:20,930 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 297 transitions.
[2024-11-24 01:00:20,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.133333333333334) internal successors, (92), 14 states have internal predecessors, (92), 5 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-24 01:00:20,930 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 297 transitions.
[2024-11-24 01:00:20,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2024-11-24 01:00:20,931 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:20,931 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:20,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2024-11-24 01:00:21,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23
[2024-11-24 01:00:21,131 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:21,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:21,132 INFO L85 PathProgramCache]: Analyzing trace with hash 909473069, now seen corresponding path program 1 times
[2024-11-24 01:00:21,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:21,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420420555]
[2024-11-24 01:00:21,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:21,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:21,817 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:21,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:21,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420420555]
[2024-11-24 01:00:21,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420420555] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:21,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092051079]
[2024-11-24 01:00:21,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:21,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:21,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:21,820 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:21,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-11-24 01:00:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:21,920 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 33 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:21,923 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:22,141 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-24 01:00:22,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-24 01:00:22,414 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size
[2024-11-24 01:00:22,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16
[2024-11-24 01:00:22,478 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-24 01:00:22,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-11-24 01:00:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:22,620 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:22,724 INFO L349 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size
[2024-11-24 01:00:22,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 81
[2024-11-24 01:00:23,063 INFO L349 Elim1Store]: treesize reduction 5, result has 84.8 percent of original size
[2024-11-24 01:00:23,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 101
[2024-11-24 01:00:23,509 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:23,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092051079] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:00:23,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 01:00:23,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 14] total 36
[2024-11-24 01:00:23,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348535815]
[2024-11-24 01:00:23,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:23,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states
[2024-11-24 01:00:23,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:23,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants.
[2024-11-24 01:00:23,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1250, Unknown=0, NotChecked=0, Total=1406
[2024-11-24 01:00:23,512 INFO L87 Difference]: Start difference. First operand 262 states and 297 transitions. Second operand has 38 states, 34 states have (on average 4.0) internal successors, (136), 31 states have internal predecessors, (136), 6 states have call successors, (8), 8 states have call predecessors, (8), 6 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6)
[2024-11-24 01:00:24,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:24,078 INFO L93 Difference]: Finished difference Result 272 states and 305 transitions.
[2024-11-24 01:00:24,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-24 01:00:24,079 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 34 states have (on average 4.0) internal successors, (136), 31 states have internal predecessors, (136), 6 states have call successors, (8), 8 states have call predecessors, (8), 6 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 52
[2024-11-24 01:00:24,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:24,080 INFO L225 Difference]: With dead ends: 272
[2024-11-24 01:00:24,080 INFO L226 Difference]: Without dead ends: 272
[2024-11-24 01:00:24,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=314, Invalid=1578, Unknown=0, NotChecked=0, Total=1892
[2024-11-24 01:00:24,081 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 369 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:24,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 207 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-24 01:00:24,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states.
[2024-11-24 01:00:24,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 262.
[2024-11-24 01:00:24,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 241 states have (on average 1.16597510373444) internal successors, (281), 249 states have internal predecessors, (281), 6 states have call successors, (6), 6 states have call predecessors, (6), 9 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9)
[2024-11-24 01:00:24,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 296 transitions.
[2024-11-24 01:00:24,092 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 296 transitions. Word has length 52
[2024-11-24 01:00:24,093 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:24,093 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 296 transitions.
[2024-11-24 01:00:24,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 34 states have (on average 4.0) internal successors, (136), 31 states have internal predecessors, (136), 6 states have call successors, (8), 8 states have call predecessors, (8), 6 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6)
[2024-11-24 01:00:24,096 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 296 transitions.
[2024-11-24 01:00:24,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2024-11-24 01:00:24,097 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:24,097 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:24,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2024-11-24 01:00:24,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24
[2024-11-24 01:00:24,302 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting parse_inputErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:24,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:24,302 INFO L85 PathProgramCache]: Analyzing trace with hash 626039558, now seen corresponding path program 1 times
[2024-11-24 01:00:24,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:24,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704787884]
[2024-11-24 01:00:24,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:24,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:24,590 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2024-11-24 01:00:24,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:24,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704787884]
[2024-11-24 01:00:24,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704787884] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:24,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939741091]
[2024-11-24 01:00:24,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:24,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:24,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:24,593 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:24,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-11-24 01:00:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:24,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 25 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:24,701 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:24,901 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-24 01:00:24,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-24 01:00:24,982 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2024-11-24 01:00:24,982 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:25,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939741091] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:25,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:00:25,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 13
[2024-11-24 01:00:25,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145379082]
[2024-11-24 01:00:25,112 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:25,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-24 01:00:25,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:25,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-24 01:00:25,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342
[2024-11-24 01:00:25,114 INFO L87 Difference]: Start difference. First operand 262 states and 296 transitions. Second operand has 15 states, 12 states have (on average 5.5) internal successors, (66), 10 states have internal predecessors, (66), 4 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-24 01:00:25,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:25,668 INFO L93 Difference]: Finished difference Result 273 states and 301 transitions.
[2024-11-24 01:00:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-24 01:00:25,669 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 5.5) internal successors, (66), 10 states have internal predecessors, (66), 4 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 53
[2024-11-24 01:00:25,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:25,670 INFO L225 Difference]: With dead ends: 273
[2024-11-24 01:00:25,670 INFO L226 Difference]: Without dead ends: 273
[2024-11-24 01:00:25,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=252, Invalid=740, Unknown=0, NotChecked=0, Total=992
[2024-11-24 01:00:25,671 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 184 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:25,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 247 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-24 01:00:25,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states.
[2024-11-24 01:00:25,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 261.
[2024-11-24 01:00:25,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 241 states have (on average 1.1410788381742738) internal successors, (275), 248 states have internal predecessors, (275), 6 states have call successors, (6), 6 states have call predecessors, (6), 9 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9)
[2024-11-24 01:00:25,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 290 transitions.
[2024-11-24 01:00:25,679 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 290 transitions. Word has length 53
[2024-11-24 01:00:25,679 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:25,679 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 290 transitions.
[2024-11-24 01:00:25,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 5.5) internal successors, (66), 10 states have internal predecessors, (66), 4 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-24 01:00:25,679 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 290 transitions.
[2024-11-24 01:00:25,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2024-11-24 01:00:25,680 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:25,680 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:25,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0
[2024-11-24 01:00:25,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25
[2024-11-24 01:00:25,881 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:25,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:25,882 INFO L85 PathProgramCache]: Analyzing trace with hash 2125259695, now seen corresponding path program 1 times
[2024-11-24 01:00:25,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:25,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169070059]
[2024-11-24 01:00:25,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:25,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:26,328 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:26,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:26,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169070059]
[2024-11-24 01:00:26,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169070059] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:26,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726326838]
[2024-11-24 01:00:26,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:26,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:26,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:26,331 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:26,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2024-11-24 01:00:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:26,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 26 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:26,445 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:26,541 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size
[2024-11-24 01:00:26,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16
[2024-11-24 01:00:26,826 INFO L349 Elim1Store]: treesize reduction 57, result has 30.5 percent of original size
[2024-11-24 01:00:26,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 75
[2024-11-24 01:00:26,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 14
[2024-11-24 01:00:26,959 INFO L349 Elim1Store]: treesize reduction 49, result has 2.0 percent of original size
[2024-11-24 01:00:26,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 1
[2024-11-24 01:00:27,030 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:27,031 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:27,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726326838] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:27,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:00:27,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18
[2024-11-24 01:00:27,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489071628]
[2024-11-24 01:00:27,114 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:27,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-11-24 01:00:27,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:27,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-11-24 01:00:27,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420
[2024-11-24 01:00:27,115 INFO L87 Difference]: Start difference. First operand 261 states and 290 transitions. Second operand has 20 states, 18 states have (on average 4.666666666666667) internal successors, (84), 16 states have internal predecessors, (84), 2 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-24 01:00:27,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:27,886 INFO L93 Difference]: Finished difference Result 269 states and 298 transitions.
[2024-11-24 01:00:27,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-11-24 01:00:27,887 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 4.666666666666667) internal successors, (84), 16 states have internal predecessors, (84), 2 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54
[2024-11-24 01:00:27,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:27,888 INFO L225 Difference]: With dead ends: 269
[2024-11-24 01:00:27,888 INFO L226 Difference]: Without dead ends: 269
[2024-11-24 01:00:27,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=246, Invalid=810, Unknown=0, NotChecked=0, Total=1056
[2024-11-24 01:00:27,889 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 249 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:27,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 233 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-24 01:00:27,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states.
[2024-11-24 01:00:27,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 260.
[2024-11-24 01:00:27,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 241 states have (on average 1.1369294605809128) internal successors, (274), 247 states have internal predecessors, (274), 6 states have call successors, (6), 6 states have call predecessors, (6), 9 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9)
[2024-11-24 01:00:27,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 289 transitions.
[2024-11-24 01:00:27,897 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 289 transitions. Word has length 54
[2024-11-24 01:00:27,897 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:27,897 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 289 transitions.
[2024-11-24 01:00:27,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 4.666666666666667) internal successors, (84), 16 states have internal predecessors, (84), 2 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-24 01:00:27,897 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 289 transitions.
[2024-11-24 01:00:27,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-11-24 01:00:27,898 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:27,898 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:27,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0
[2024-11-24 01:00:28,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26
[2024-11-24 01:00:28,102 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:28,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:28,103 INFO L85 PathProgramCache]: Analyzing trace with hash 2035852867, now seen corresponding path program 1 times
[2024-11-24 01:00:28,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:28,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524928018]
[2024-11-24 01:00:28,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:28,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:28,854 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:28,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:28,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524928018]
[2024-11-24 01:00:28,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524928018] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:28,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257144637]
[2024-11-24 01:00:28,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:28,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:28,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:28,858 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:28,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2024-11-24 01:00:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:28,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 32 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:28,989 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:29,328 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size
[2024-11-24 01:00:29,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16
[2024-11-24 01:00:29,913 INFO L349 Elim1Store]: treesize reduction 57, result has 30.5 percent of original size
[2024-11-24 01:00:29,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 75
[2024-11-24 01:00:30,051 INFO L349 Elim1Store]: treesize reduction 32, result has 36.0 percent of original size
[2024-11-24 01:00:30,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 29
[2024-11-24 01:00:30,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 14
[2024-11-24 01:00:30,242 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 13 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:30,242 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:30,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257144637] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:30,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:00:30,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 25
[2024-11-24 01:00:30,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155889118]
[2024-11-24 01:00:30,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:30,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2024-11-24 01:00:30,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:30,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2024-11-24 01:00:30,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=775, Unknown=0, NotChecked=0, Total=870
[2024-11-24 01:00:30,386 INFO L87 Difference]: Start difference. First operand 260 states and 289 transitions. Second operand has 27 states, 24 states have (on average 4.583333333333333) internal successors, (110), 23 states have internal predecessors, (110), 5 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-24 01:00:31,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:31,191 INFO L93 Difference]: Finished difference Result 268 states and 297 transitions.
[2024-11-24 01:00:31,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-24 01:00:31,191 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 4.583333333333333) internal successors, (110), 23 states have internal predecessors, (110), 5 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 60
[2024-11-24 01:00:31,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:31,192 INFO L225 Difference]: With dead ends: 268
[2024-11-24 01:00:31,193 INFO L226 Difference]: Without dead ends: 268
[2024-11-24 01:00:31,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=260, Invalid=1300, Unknown=0, NotChecked=0, Total=1560
[2024-11-24 01:00:31,194 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 267 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:31,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 261 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-24 01:00:31,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states.
[2024-11-24 01:00:31,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 259.
[2024-11-24 01:00:31,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 241 states have (on average 1.1327800829875518) internal successors, (273), 246 states have internal predecessors, (273), 6 states have call successors, (6), 6 states have call predecessors, (6), 9 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9)
[2024-11-24 01:00:31,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 288 transitions.
[2024-11-24 01:00:31,200 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 288 transitions. Word has length 60
[2024-11-24 01:00:31,200 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:31,200 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 288 transitions.
[2024-11-24 01:00:31,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 4.583333333333333) internal successors, (110), 23 states have internal predecessors, (110), 5 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-24 01:00:31,201 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 288 transitions.
[2024-11-24 01:00:31,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2024-11-24 01:00:31,202 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:31,202 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:31,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0
[2024-11-24 01:00:31,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27
[2024-11-24 01:00:31,407 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:31,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:31,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1313070517, now seen corresponding path program 1 times
[2024-11-24 01:00:31,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:31,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192898952]
[2024-11-24 01:00:31,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:31,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:32,172 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:32,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:32,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192898952]
[2024-11-24 01:00:32,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192898952] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:32,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063592724]
[2024-11-24 01:00:32,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:32,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:32,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:32,174 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:32,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2024-11-24 01:00:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:32,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 35 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:32,287 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:32,732 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size
[2024-11-24 01:00:32,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16
[2024-11-24 01:00:32,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-24 01:00:33,047 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-24 01:00:33,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-24 01:00:33,303 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2024-11-24 01:00:33,303 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:33,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063592724] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:33,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:00:33,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8] total 23
[2024-11-24 01:00:33,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515378884]
[2024-11-24 01:00:33,602 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:33,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2024-11-24 01:00:33,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:33,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2024-11-24 01:00:33,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=780, Unknown=0, NotChecked=0, Total=870
[2024-11-24 01:00:33,604 INFO L87 Difference]: Start difference. First operand 259 states and 288 transitions. Second operand has 25 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 21 states have internal predecessors, (100), 5 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4)
[2024-11-24 01:00:34,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:34,958 INFO L93 Difference]: Finished difference Result 284 states and 311 transitions.
[2024-11-24 01:00:34,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-11-24 01:00:34,958 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 21 states have internal predecessors, (100), 5 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 61
[2024-11-24 01:00:34,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:34,959 INFO L225 Difference]: With dead ends: 284
[2024-11-24 01:00:34,959 INFO L226 Difference]: Without dead ends: 284
[2024-11-24 01:00:34,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=400, Invalid=1952, Unknown=0, NotChecked=0, Total=2352
[2024-11-24 01:00:34,961 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 358 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:34,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 295 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-24 01:00:34,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states.
[2024-11-24 01:00:34,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 258.
[2024-11-24 01:00:34,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 241 states have (on average 1.1286307053941909) internal successors, (272), 245 states have internal predecessors, (272), 6 states have call successors, (6), 6 states have call predecessors, (6), 9 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9)
[2024-11-24 01:00:34,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 287 transitions.
[2024-11-24 01:00:34,968 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 287 transitions. Word has length 61
[2024-11-24 01:00:34,968 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:34,968 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 287 transitions.
[2024-11-24 01:00:34,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 21 states have internal predecessors, (100), 5 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4)
[2024-11-24 01:00:34,968 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 287 transitions.
[2024-11-24 01:00:34,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2024-11-24 01:00:34,969 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:34,970 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:34,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0
[2024-11-24 01:00:35,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28
[2024-11-24 01:00:35,173 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting parse_inputErr18ASSERT_VIOLATIONMEMORY_FREE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:35,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:35,174 INFO L85 PathProgramCache]: Analyzing trace with hash 359818979, now seen corresponding path program 1 times
[2024-11-24 01:00:35,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:35,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485179336]
[2024-11-24 01:00:35,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:35,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:35,517 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 26 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:35,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:00:35,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485179336]
[2024-11-24 01:00:35,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485179336] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:35,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248986461]
[2024-11-24 01:00:35,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:35,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:35,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:35,521 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:35,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2024-11-24 01:00:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:35,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 29 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:35,665 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:35,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-24 01:00:35,827 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size
[2024-11-24 01:00:35,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 16
[2024-11-24 01:00:35,856 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2024-11-24 01:00:35,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14
[2024-11-24 01:00:35,869 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 28 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:35,869 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:35,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248986461] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:00:35,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:00:35,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10
[2024-11-24 01:00:35,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197668323]
[2024-11-24 01:00:35,957 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:35,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-24 01:00:35,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:00:35,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-24 01:00:35,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132
[2024-11-24 01:00:35,958 INFO L87 Difference]: Start difference. First operand 258 states and 287 transitions. Second operand has 11 states, 10 states have (on average 7.1) internal successors, (71), 11 states have internal predecessors, (71), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-24 01:00:36,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:36,188 INFO L93 Difference]: Finished difference Result 269 states and 297 transitions.
[2024-11-24 01:00:36,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-24 01:00:36,188 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.1) internal successors, (71), 11 states have internal predecessors, (71), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 66
[2024-11-24 01:00:36,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:36,189 INFO L225 Difference]: With dead ends: 269
[2024-11-24 01:00:36,190 INFO L226 Difference]: Without dead ends: 269
[2024-11-24 01:00:36,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 85 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240
[2024-11-24 01:00:36,190 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 23 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:36,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 195 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-24 01:00:36,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states.
[2024-11-24 01:00:36,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 212.
[2024-11-24 01:00:36,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 199 states have (on average 1.1256281407035176) internal successors, (224), 201 states have internal predecessors, (224), 5 states have call successors, (5), 5 states have call predecessors, (5), 7 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7)
[2024-11-24 01:00:36,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 236 transitions.
[2024-11-24 01:00:36,197 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 236 transitions. Word has length 66
[2024-11-24 01:00:36,198 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:36,198 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 236 transitions.
[2024-11-24 01:00:36,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.1) internal successors, (71), 11 states have internal predecessors, (71), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-24 01:00:36,198 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 236 transitions.
[2024-11-24 01:00:36,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2024-11-24 01:00:36,199 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:36,199 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:36,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0
[2024-11-24 01:00:36,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:36,405 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:36,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:36,406 INFO L85 PathProgramCache]: Analyzing trace with hash -618326333, now seen corresponding path program 1 times
[2024-11-24 01:00:36,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:00:36,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178731427]
[2024-11-24 01:00:36,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:36,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:00:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 01:00:36,437 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-24 01:00:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-24 01:00:36,487 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-24 01:00:36,488 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-24 01:00:36,489 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (19 of 20 remaining)
[2024-11-24 01:00:36,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 20 remaining)
[2024-11-24 01:00:36,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 20 remaining)
[2024-11-24 01:00:36,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (16 of 20 remaining)
[2024-11-24 01:00:36,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE (15 of 20 remaining)
[2024-11-24 01:00:36,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE (14 of 20 remaining)
[2024-11-24 01:00:36,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE (13 of 20 remaining)
[2024-11-24 01:00:36,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 20 remaining)
[2024-11-24 01:00:36,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 20 remaining)
[2024-11-24 01:00:36,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 20 remaining)
[2024-11-24 01:00:36,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 20 remaining)
[2024-11-24 01:00:36,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr10ASSERT_VIOLATIONMEMORY_FREE (8 of 20 remaining)
[2024-11-24 01:00:36,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr11ASSERT_VIOLATIONMEMORY_FREE (7 of 20 remaining)
[2024-11-24 01:00:36,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr12ASSERT_VIOLATIONMEMORY_FREE (6 of 20 remaining)
[2024-11-24 01:00:36,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr13ASSERT_VIOLATIONMEMORY_FREE (5 of 20 remaining)
[2024-11-24 01:00:36,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr14ASSERT_VIOLATIONMEMORY_FREE (4 of 20 remaining)
[2024-11-24 01:00:36,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr15ASSERT_VIOLATIONMEMORY_FREE (3 of 20 remaining)
[2024-11-24 01:00:36,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr16ASSERT_VIOLATIONMEMORY_FREE (2 of 20 remaining)
[2024-11-24 01:00:36,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr17ASSERT_VIOLATIONMEMORY_FREE (1 of 20 remaining)
[2024-11-24 01:00:36,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location parse_inputErr18ASSERT_VIOLATIONMEMORY_FREE (0 of 20 remaining)
[2024-11-24 01:00:36,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2024-11-24 01:00:36,496 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:36,585 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-24 01:00:36,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:00:36 BoogieIcfgContainer
[2024-11-24 01:00:36,588 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-24 01:00:36,589 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-24 01:00:36,589 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-24 01:00:36,589 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-24 01:00:36,590 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:59:56" (3/4) ...
[2024-11-24 01:00:36,592 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-11-24 01:00:36,593 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-24 01:00:36,594 INFO L158 Benchmark]: Toolchain (without parser) took 42078.34ms. Allocated memory was 142.6MB in the beginning and 268.4MB in the end (delta: 125.8MB). Free memory was 116.3MB in the beginning and 119.1MB in the end (delta: -2.8MB). Peak memory consumption was 128.0MB. Max. memory is 16.1GB.
[2024-11-24 01:00:36,594 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:00:36,594 INFO L158 Benchmark]: CACSL2BoogieTranslator took 742.44ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 96.2MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 01:00:36,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.64ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 94.1MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 01:00:36,595 INFO L158 Benchmark]: Boogie Preprocessor took 85.73ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 92.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:00:36,595 INFO L158 Benchmark]: RCFGBuilder took 622.25ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 76.1MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 01:00:36,596 INFO L158 Benchmark]: TraceAbstraction took 40535.93ms. Allocated memory was 142.6MB in the beginning and 268.4MB in the end (delta: 125.8MB). Free memory was 75.6MB in the beginning and 119.1MB in the end (delta: -43.6MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB.
[2024-11-24 01:00:36,596 INFO L158 Benchmark]: Witness Printer took 4.35ms. Allocated memory is still 268.4MB. Free memory was 119.1MB in the beginning and 119.1MB in the end (delta: 54.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 01:00:36,597 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 742.44ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 96.2MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 78.64ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 94.1MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 85.73ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 92.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 622.25ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 76.1MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 40535.93ms. Allocated memory was 142.6MB in the beginning and 268.4MB in the end (delta: 125.8MB). Free memory was 75.6MB in the beginning and 119.1MB in the end (delta: -43.6MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB.
* Witness Printer took 4.35ms. Allocated memory is still 268.4MB. Free memory was 119.1MB in the beginning and 119.1MB in the end (delta: 54.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 721]: Unable to prove that all allocated memory was freed
Unable to prove that all allocated memory was freed
Reason: overapproximation of strcmp at line 693, overapproximation of memtrack at line 721.
Possible FailurePath:
[L685] int state = STATE_1;
[L686] char *global = 0;
[L687-L690] const struct command commands[] = {
{"c1",c1,STATE_1},
{"c2",c2,STATE_2}
};
[L687-L690] const struct command commands[] = {
{"c1",c1,STATE_1},
{"c2",c2,STATE_2}
};
[L687-L690] const struct command commands[] = {
{"c1",c1,STATE_1},
{"c2",c2,STATE_2}
};
[L687-L690] const struct command commands[] = {
{"c1",c1,STATE_1},
{"c2",c2,STATE_2}
};
[L687-L690] const struct command commands[] = {
{"c1",c1,STATE_1},
{"c2",c2,STATE_2}
};
[L687-L690] const struct command commands[] = {
{"c1",c1,STATE_1},
{"c2",c2,STATE_2}
};
[L687-L690] const struct command commands[] = {
{"c1",c1,STATE_1},
{"c2",c2,STATE_2}
};
VAL [commands={6:0}, global={0:0}, state=0]
[L722] CALL parse_input("c1")
VAL [\old(state)=0, commands={6:0}, global={0:0}, state=0]
[L692] int i = 0;
VAL [\old(input)={3:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={3:0}, state=0]
[L692] COND TRUE i < 2
VAL [\old(input)={3:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={3:0}, state=0]
[L693] EXPR commands[i].name
VAL [\old(input)={3:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={3:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={3:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={3:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={3:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={3:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={3:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={3:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={3:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={3:0}, state=0]
[L693] COND FALSE !(strcmp(commands[i].name,input) == 0)
[L692] i++
VAL [\old(input)={3:0}, \old(state)=0, commands={6:0}, global={0:0}, i=1, input={3:0}, state=0]
[L692] COND TRUE i < 2
VAL [\old(input)={3:0}, \old(state)=0, commands={6:0}, global={0:0}, i=1, input={3:0}, state=0]
[L693] EXPR commands[i].name
VAL [\old(input)={3:0}, \old(state)=0, commands={6:0}, global={0:0}, i=1, input={3:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={3:0}, \old(state)=0, commands={6:0}, global={0:0}, i=1, input={3:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={3:0}, \old(state)=0, commands={6:0}, global={0:0}, i=1, input={3:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={3:0}, \old(state)=0, commands={6:0}, global={0:0}, i=1, input={3:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={3:0}, \old(state)=0, commands={6:0}, global={0:0}, i=1, input={3:0}, state=0]
[L693] COND FALSE !(strcmp(commands[i].name,input) == 0)
[L692] i++
VAL [\old(input)={3:0}, \old(state)=0, commands={6:0}, global={0:0}, i=2, input={3:0}, state=0]
[L692] COND FALSE !(i < 2)
VAL [\old(input)={3:0}, \old(state)=0, commands={6:0}, global={0:0}, input={3:0}, state=0]
[L722] RET parse_input("c1")
VAL [commands={6:0}, global={0:0}, state=0]
[L723] CALL parse_input("c1")
VAL [\old(state)=0, commands={6:0}, global={0:0}, state=0]
[L692] int i = 0;
VAL [\old(input)={4:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={4:0}, state=0]
[L692] COND TRUE i < 2
VAL [\old(input)={4:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={4:0}, state=0]
[L693] EXPR commands[i].name
VAL [\old(input)={4:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={4:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={4:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={4:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={4:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={4:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={4:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={4:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={4:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={4:0}, state=0]
[L693] COND FALSE !(strcmp(commands[i].name,input) == 0)
[L692] i++
VAL [\old(input)={4:0}, \old(state)=0, commands={6:0}, global={0:0}, i=1, input={4:0}, state=0]
[L692] COND TRUE i < 2
VAL [\old(input)={4:0}, \old(state)=0, commands={6:0}, global={0:0}, i=1, input={4:0}, state=0]
[L693] EXPR commands[i].name
VAL [\old(input)={4:0}, \old(state)=0, commands={6:0}, global={0:0}, i=1, input={4:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={4:0}, \old(state)=0, commands={6:0}, global={0:0}, i=1, input={4:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={4:0}, \old(state)=0, commands={6:0}, global={0:0}, i=1, input={4:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={4:0}, \old(state)=0, commands={6:0}, global={0:0}, i=1, input={4:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={4:0}, \old(state)=0, commands={6:0}, global={0:0}, i=1, input={4:0}, state=0]
[L693] COND FALSE !(strcmp(commands[i].name,input) == 0)
[L692] i++
VAL [\old(input)={4:0}, \old(state)=0, commands={6:0}, global={0:0}, i=2, input={4:0}, state=0]
[L692] COND FALSE !(i < 2)
VAL [\old(input)={4:0}, \old(state)=0, commands={6:0}, global={0:0}, input={4:0}, state=0]
[L723] RET parse_input("c1")
VAL [commands={6:0}, global={0:0}, state=0]
[L724] CALL parse_input("c2")
VAL [\old(state)=0, commands={6:0}, global={0:0}, state=0]
[L692] int i = 0;
VAL [\old(input)={5:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={5:0}, state=0]
[L692] COND TRUE i < 2
VAL [\old(input)={5:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={5:0}, state=0]
[L693] EXPR commands[i].name
VAL [\old(input)={5:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={5:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={5:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={5:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={5:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={5:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={5:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={5:0}, state=0]
[L693] EXPR strcmp(commands[i].name,input)
VAL [\old(input)={5:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={5:0}, state=0]
[L693] COND TRUE strcmp(commands[i].name,input) == 0
[L694] EXPR commands[i].state_needed
VAL [\old(input)={5:0}, \old(state)=0, commands={6:0}, global={0:0}, i=0, input={5:0}, state=0]
[L694] COND TRUE state >= commands[i].state_needed
[L695] EXPR commands[i].function
VAL [\old(input)={5:0}, \old(state)=0, commands={6:0}, global={0:0}, input={5:0}, state=0]
[L695] CALL commands[i].function()
[L702] char *x = (char *)malloc(sizeof(char));
[L703] COND FALSE !(!x)
VAL [\old(state)=0, commands={6:0}, global={0:0}, state=0, x={-3:0}]
[L706] COND FALSE !(\read(*global))
VAL [\old(state)=0, commands={6:0}, global={0:0}, state=0, x={-3:0}]
[L709] global = x
[L710] state = STATE_2
VAL [\old(state)=0, commands={6:0}, global={-3:0}, state=1]
[L695] RET commands[i].function()
[L724] RET parse_input("c2")
VAL [commands={6:0}, global={-3:0}, state=1]
[L725] return 0;
VAL [\result=0, commands={6:0}, global={-3:0}, state=1]
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 717]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 717]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 717]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 718]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 718]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 718]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 707]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 707]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 707]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 62 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 40.4s, OverallIterations: 31, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5559 SdHoareTripleChecker+Valid, 6.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5559 mSDsluCounter, 6754 SdHoareTripleChecker+Invalid, 5.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 172 IncrementalHoareTripleChecker+Unchecked, 5240 mSDsCounter, 599 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5916 IncrementalHoareTripleChecker+Invalid, 6687 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 599 mSolverCounterUnsat, 1514 mSDtfsCounter, 5916 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1579 GetRequests, 1074 SyntacticMatches, 8 SemanticMatches, 497 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2691 ImplicationChecksByTransitivity, 10.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=386occurred in iteration=16, InterpolantAutomatonStates: 275, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 30 MinimizatonAttempts, 620 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 20.4s InterpolantComputationTime, 1887 NumberOfCodeBlocks, 1887 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 2030 ConstructedInterpolants, 119 QuantifiedInterpolants, 22429 SizeOfPredicates, 80 NumberOfNonLiveVariables, 5375 ConjunctsInSsa, 414 ConjunctsInUnsatCore, 59 InterpolantComputations, 11 PerfectInterpolantSequences, 426/1020 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
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-24 01:00:36,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/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
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c883b81b24ce5a721aa9a1ff13aef8a0d532ba87d9e130e470a0b88a1f8e93e
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 01:00:39,467 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 01:00:39,591 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2024-11-24 01:00:39,604 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 01:00:39,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 01:00:39,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 01:00:39,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 01:00:39,655 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 01:00:39,655 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 01:00:39,655 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 01:00:39,656 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 01:00:39,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 01:00:39,657 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 01:00:39,657 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 01:00:39,657 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 01:00:39,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 01:00:39,657 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 01:00:39,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 01:00:39,659 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 01:00:39,659 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 01:00:39,659 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-24 01:00:39,659 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-24 01:00:39,659 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-24 01:00:39,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 01:00:39,659 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-24 01:00:39,660 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-24 01:00:39,660 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-24 01:00:39,660 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-24 01:00:39,660 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 01:00:39,660 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 01:00:39,660 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 01:00:39,660 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 01:00:39,661 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:00:39,661 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:00:39,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:00:39,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:00:39,662 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 01:00:39,662 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:00:39,662 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:00:39,662 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:00:39,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:00:39,663 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 01:00:39,663 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 01:00:39,663 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-24 01:00:39,663 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-24 01:00:39,663 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 01:00:39,663 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 01:00:39,664 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 01:00:39,664 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 01:00:39,664 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_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC
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 valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
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 -> 7c883b81b24ce5a721aa9a1ff13aef8a0d532ba87d9e130e470a0b88a1f8e93e
[2024-11-24 01:00:40,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 01:00:40,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 01:00:40,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 01:00:40,028 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 01:00:40,029 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 01:00:40,030 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i
[2024-11-24 01:00:43,211 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/data/a268660a6/ab0bdcd516ad42c49aa8ed3d6ce55360/FLAG05b302392
[2024-11-24 01:00:43,623 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 01:00:43,626 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/sv-benchmarks/c/memsafety-bftpd/bftpd_2.i
[2024-11-24 01:00:43,647 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/data/a268660a6/ab0bdcd516ad42c49aa8ed3d6ce55360/FLAG05b302392
[2024-11-24 01:00:43,668 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/data/a268660a6/ab0bdcd516ad42c49aa8ed3d6ce55360
[2024-11-24 01:00:43,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 01:00:43,673 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 01:00:43,675 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 01:00:43,675 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 01:00:43,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 01:00:43,681 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:00:43" (1/1) ...
[2024-11-24 01:00:43,684 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aee3506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:43, skipping insertion in model container
[2024-11-24 01:00:43,684 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:00:43" (1/1) ...
[2024-11-24 01:00:43,732 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 01:00:44,119 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-24 01:00:44,126 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:00:44,143 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 01:00:44,203 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:00:44,243 INFO L204 MainTranslator]: Completed translation
[2024-11-24 01:00:44,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:44 WrapperNode
[2024-11-24 01:00:44,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 01:00:44,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 01:00:44,245 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 01:00:44,245 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 01:00:44,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:44" (1/1) ...
[2024-11-24 01:00:44,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:44" (1/1) ...
[2024-11-24 01:00:44,290 INFO L138 Inliner]: procedures = 169, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 95
[2024-11-24 01:00:44,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 01:00:44,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 01:00:44,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 01:00:44,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 01:00:44,301 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:44" (1/1) ...
[2024-11-24 01:00:44,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:44" (1/1) ...
[2024-11-24 01:00:44,305 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:44" (1/1) ...
[2024-11-24 01:00:44,320 INFO L175 MemorySlicer]: Split 24 memory accesses to 3 slices as follows [9, 6, 9]. 38 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [6, 6, 9]. The 0 writes are split as follows [0, 0, 0].
[2024-11-24 01:00:44,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:44" (1/1) ...
[2024-11-24 01:00:44,321 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:44" (1/1) ...
[2024-11-24 01:00:44,331 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:44" (1/1) ...
[2024-11-24 01:00:44,332 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:44" (1/1) ...
[2024-11-24 01:00:44,335 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:44" (1/1) ...
[2024-11-24 01:00:44,337 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:44" (1/1) ...
[2024-11-24 01:00:44,338 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:44" (1/1) ...
[2024-11-24 01:00:44,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 01:00:44,347 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 01:00:44,347 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 01:00:44,347 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 01:00:44,348 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:44" (1/1) ...
[2024-11-24 01:00:44,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:00:44,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:44,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 01:00:44,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 01:00:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0
[2024-11-24 01:00:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1
[2024-11-24 01:00:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2
[2024-11-24 01:00:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure parse_input
[2024-11-24 01:00:44,439 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_input
[2024-11-24 01:00:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-24 01:00:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 01:00:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-24 01:00:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-24 01:00:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-24 01:00:44,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-24 01:00:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-24 01:00:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-24 01:00:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-11-24 01:00:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-24 01:00:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-24 01:00:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-11-24 01:00:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 01:00:44,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 01:00:44,633 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 01:00:44,635 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 01:00:45,006 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live.
[2024-11-24 01:00:45,006 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 01:00:45,021 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 01:00:45,021 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-24 01:00:45,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:00:45 BoogieIcfgContainer
[2024-11-24 01:00:45,022 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 01:00:45,025 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 01:00:45,025 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 01:00:45,031 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 01:00:45,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:00:43" (1/3) ...
[2024-11-24 01:00:45,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7246423a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:00:45, skipping insertion in model container
[2024-11-24 01:00:45,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:44" (2/3) ...
[2024-11-24 01:00:45,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7246423a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:00:45, skipping insertion in model container
[2024-11-24 01:00:45,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:00:45" (3/3) ...
[2024-11-24 01:00:45,036 INFO L128 eAbstractionObserver]: Analyzing ICFG bftpd_2.i
[2024-11-24 01:00:45,054 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 01:00:45,055 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bftpd_2.i that has 2 procedures, 62 locations, 1 initial locations, 1 loop locations, and 20 error locations.
[2024-11-24 01:00:45,096 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 01:00:45,112 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=None, 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;@21a2c50b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 01:00:45,113 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations.
[2024-11-24 01:00:45,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 57 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-24 01:00:45,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-24 01:00:45,130 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:45,131 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:45,132 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:45,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:45,139 INFO L85 PathProgramCache]: Analyzing trace with hash -713284542, now seen corresponding path program 1 times
[2024-11-24 01:00:45,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:00:45,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [814630999]
[2024-11-24 01:00:45,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:45,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:45,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:45,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:45,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-24 01:00:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:45,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:45,341 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:45,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:45,524 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:00:45,525 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:00:45,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814630999]
[2024-11-24 01:00:45,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814630999] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:00:45,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:00:45,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-24 01:00:45,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208679300]
[2024-11-24 01:00:45,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:00:45,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:00:45,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:00:45,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:00:45,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:00:45,569 INFO L87 Difference]: Start difference. First operand has 62 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 57 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:45,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:45,779 INFO L93 Difference]: Finished difference Result 112 states and 130 transitions.
[2024-11-24 01:00:45,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:00:45,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2024-11-24 01:00:45,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:45,791 INFO L225 Difference]: With dead ends: 112
[2024-11-24 01:00:45,791 INFO L226 Difference]: Without dead ends: 108
[2024-11-24 01:00:45,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:00:45,797 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 53 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:45,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 103 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-24 01:00:45,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states.
[2024-11-24 01:00:45,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 86.
[2024-11-24 01:00:45,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 59 states have (on average 1.6779661016949152) internal successors, (99), 78 states have internal predecessors, (99), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8)
[2024-11-24 01:00:45,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 112 transitions.
[2024-11-24 01:00:45,849 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 112 transitions. Word has length 6
[2024-11-24 01:00:45,849 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:45,849 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 112 transitions.
[2024-11-24 01:00:45,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:45,850 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 112 transitions.
[2024-11-24 01:00:45,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-24 01:00:45,850 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:45,850 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:45,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-24 01:00:46,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:46,051 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:46,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:46,052 INFO L85 PathProgramCache]: Analyzing trace with hash -713284541, now seen corresponding path program 1 times
[2024-11-24 01:00:46,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:00:46,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [855524005]
[2024-11-24 01:00:46,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:46,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:46,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:46,055 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:46,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-24 01:00:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:46,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:46,172 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:46,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:46,330 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:00:46,330 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:00:46,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855524005]
[2024-11-24 01:00:46,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855524005] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:00:46,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:00:46,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:00:46,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324003762]
[2024-11-24 01:00:46,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:00:46,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:00:46,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:00:46,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:00:46,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:00:46,335 INFO L87 Difference]: Start difference. First operand 86 states and 112 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:46,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:46,563 INFO L93 Difference]: Finished difference Result 184 states and 246 transitions.
[2024-11-24 01:00:46,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:00:46,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2024-11-24 01:00:46,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:46,565 INFO L225 Difference]: With dead ends: 184
[2024-11-24 01:00:46,566 INFO L226 Difference]: Without dead ends: 184
[2024-11-24 01:00:46,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:00:46,567 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 87 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:46,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 140 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-24 01:00:46,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states.
[2024-11-24 01:00:46,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 156.
[2024-11-24 01:00:46,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 123 states have (on average 1.7154471544715446) internal successors, (211), 142 states have internal predecessors, (211), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22)
[2024-11-24 01:00:46,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 242 transitions.
[2024-11-24 01:00:46,587 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 242 transitions. Word has length 6
[2024-11-24 01:00:46,587 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:46,587 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 242 transitions.
[2024-11-24 01:00:46,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:46,587 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 242 transitions.
[2024-11-24 01:00:46,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-24 01:00:46,588 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:46,588 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:46,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-24 01:00:46,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:46,789 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:46,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:46,789 INFO L85 PathProgramCache]: Analyzing trace with hash -636984340, now seen corresponding path program 1 times
[2024-11-24 01:00:46,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:00:46,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [490681669]
[2024-11-24 01:00:46,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:46,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:46,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:46,794 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:46,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-24 01:00:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:46,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:46,882 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:47,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:47,087 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:00:47,088 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:00:47,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490681669]
[2024-11-24 01:00:47,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490681669] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:00:47,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:00:47,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:00:47,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433453983]
[2024-11-24 01:00:47,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:00:47,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 01:00:47,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:00:47,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 01:00:47,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:00:47,091 INFO L87 Difference]: Start difference. First operand 156 states and 242 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:47,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:47,409 INFO L93 Difference]: Finished difference Result 196 states and 281 transitions.
[2024-11-24 01:00:47,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 01:00:47,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-11-24 01:00:47,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:47,412 INFO L225 Difference]: With dead ends: 196
[2024-11-24 01:00:47,412 INFO L226 Difference]: Without dead ends: 196
[2024-11-24 01:00:47,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-24 01:00:47,413 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 81 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:47,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 162 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-24 01:00:47,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states.
[2024-11-24 01:00:47,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 159.
[2024-11-24 01:00:47,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 126 states have (on average 1.6984126984126984) internal successors, (214), 145 states have internal predecessors, (214), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22)
[2024-11-24 01:00:47,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 245 transitions.
[2024-11-24 01:00:47,431 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 245 transitions. Word has length 7
[2024-11-24 01:00:47,431 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:47,431 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 245 transitions.
[2024-11-24 01:00:47,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:47,432 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 245 transitions.
[2024-11-24 01:00:47,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-24 01:00:47,432 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:47,432 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:47,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-24 01:00:47,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:47,637 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:47,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:47,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1728321986, now seen corresponding path program 1 times
[2024-11-24 01:00:47,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:00:47,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1251598679]
[2024-11-24 01:00:47,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:47,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:47,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:47,640 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:47,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-24 01:00:47,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:47,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:47,727 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:47,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:47,970 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:00:47,971 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:00:47,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251598679]
[2024-11-24 01:00:47,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251598679] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:00:47,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:00:47,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:00:47,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957598139]
[2024-11-24 01:00:47,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:00:47,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 01:00:47,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:00:47,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 01:00:47,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:00:47,973 INFO L87 Difference]: Start difference. First operand 159 states and 245 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:48,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:48,264 INFO L93 Difference]: Finished difference Result 186 states and 247 transitions.
[2024-11-24 01:00:48,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 01:00:48,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2024-11-24 01:00:48,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:48,267 INFO L225 Difference]: With dead ends: 186
[2024-11-24 01:00:48,267 INFO L226 Difference]: Without dead ends: 186
[2024-11-24 01:00:48,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-24 01:00:48,268 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 69 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:48,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 205 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-24 01:00:48,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states.
[2024-11-24 01:00:48,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 159.
[2024-11-24 01:00:48,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 126 states have (on average 1.6825396825396826) internal successors, (212), 145 states have internal predecessors, (212), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22)
[2024-11-24 01:00:48,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 243 transitions.
[2024-11-24 01:00:48,283 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 243 transitions. Word has length 8
[2024-11-24 01:00:48,283 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:48,283 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 243 transitions.
[2024-11-24 01:00:48,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:48,283 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 243 transitions.
[2024-11-24 01:00:48,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-24 01:00:48,284 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:48,284 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:48,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-24 01:00:48,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:48,488 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:48,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:48,489 INFO L85 PathProgramCache]: Analyzing trace with hash 2038374062, now seen corresponding path program 1 times
[2024-11-24 01:00:48,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:00:48,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15185939]
[2024-11-24 01:00:48,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:48,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:48,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:48,493 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:48,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-24 01:00:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:48,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:48,587 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:48,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:48,671 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:00:48,671 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:00:48,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15185939]
[2024-11-24 01:00:48,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15185939] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:00:48,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:00:48,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:00:48,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288537527]
[2024-11-24 01:00:48,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:00:48,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 01:00:48,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:00:48,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 01:00:48,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:00:48,672 INFO L87 Difference]: Start difference. First operand 159 states and 243 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:48,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:48,885 INFO L93 Difference]: Finished difference Result 239 states and 326 transitions.
[2024-11-24 01:00:48,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 01:00:48,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2024-11-24 01:00:48,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:48,891 INFO L225 Difference]: With dead ends: 239
[2024-11-24 01:00:48,891 INFO L226 Difference]: Without dead ends: 239
[2024-11-24 01:00:48,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-24 01:00:48,892 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 136 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:48,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 196 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-24 01:00:48,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states.
[2024-11-24 01:00:48,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 196.
[2024-11-24 01:00:48,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 161 states have (on average 1.6335403726708075) internal successors, (263), 181 states have internal predecessors, (263), 9 states have call successors, (9), 5 states have call predecessors, (9), 6 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22)
[2024-11-24 01:00:48,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 294 transitions.
[2024-11-24 01:00:48,910 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 294 transitions. Word has length 9
[2024-11-24 01:00:48,910 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:48,910 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 294 transitions.
[2024-11-24 01:00:48,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:48,911 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 294 transitions.
[2024-11-24 01:00:48,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-24 01:00:48,911 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:48,911 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:48,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-24 01:00:49,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:49,112 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting parse_inputErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:49,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:49,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1234913468, now seen corresponding path program 1 times
[2024-11-24 01:00:49,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:00:49,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [841476017]
[2024-11-24 01:00:49,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:49,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:49,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:49,115 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:49,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-24 01:00:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:49,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:49,187 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:49,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:49,317 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:00:49,317 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:00:49,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841476017]
[2024-11-24 01:00:49,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841476017] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:00:49,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:00:49,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:00:49,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790922497]
[2024-11-24 01:00:49,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:00:49,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 01:00:49,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:00:49,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 01:00:49,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:00:49,320 INFO L87 Difference]: Start difference. First operand 196 states and 294 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:49,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:49,556 INFO L93 Difference]: Finished difference Result 236 states and 309 transitions.
[2024-11-24 01:00:49,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 01:00:49,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2024-11-24 01:00:49,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:49,559 INFO L225 Difference]: With dead ends: 236
[2024-11-24 01:00:49,559 INFO L226 Difference]: Without dead ends: 236
[2024-11-24 01:00:49,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-24 01:00:49,561 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 125 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:49,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 227 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-24 01:00:49,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states.
[2024-11-24 01:00:49,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 206.
[2024-11-24 01:00:49,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 170 states have (on average 1.6235294117647059) internal successors, (276), 191 states have internal predecessors, (276), 9 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22)
[2024-11-24 01:00:49,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 307 transitions.
[2024-11-24 01:00:49,586 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 307 transitions. Word has length 10
[2024-11-24 01:00:49,586 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:49,586 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 307 transitions.
[2024-11-24 01:00:49,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:49,587 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 307 transitions.
[2024-11-24 01:00:49,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-24 01:00:49,591 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:49,591 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:49,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-24 01:00:49,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:49,792 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:49,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:49,792 INFO L85 PathProgramCache]: Analyzing trace with hash -81492115, now seen corresponding path program 1 times
[2024-11-24 01:00:49,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:00:49,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1201377356]
[2024-11-24 01:00:49,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:49,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:49,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:49,795 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:49,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-24 01:00:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:49,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:49,871 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:50,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:50,102 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:50,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:50,426 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:00:50,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201377356]
[2024-11-24 01:00:50,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201377356] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:00:50,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:00:50,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6
[2024-11-24 01:00:50,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015669543]
[2024-11-24 01:00:50,426 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:50,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-24 01:00:50,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:00:50,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-24 01:00:50,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2024-11-24 01:00:50,428 INFO L87 Difference]: Start difference. First operand 206 states and 307 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:50,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:50,953 INFO L93 Difference]: Finished difference Result 274 states and 364 transitions.
[2024-11-24 01:00:50,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-24 01:00:50,954 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14
[2024-11-24 01:00:50,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:50,956 INFO L225 Difference]: With dead ends: 274
[2024-11-24 01:00:50,956 INFO L226 Difference]: Without dead ends: 274
[2024-11-24 01:00:50,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2024-11-24 01:00:50,957 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 165 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:50,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 281 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-24 01:00:50,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states.
[2024-11-24 01:00:50,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 236.
[2024-11-24 01:00:50,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 200 states have (on average 1.62) internal successors, (324), 221 states have internal predecessors, (324), 9 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22)
[2024-11-24 01:00:50,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 355 transitions.
[2024-11-24 01:00:50,971 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 355 transitions. Word has length 14
[2024-11-24 01:00:50,971 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:50,971 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 355 transitions.
[2024-11-24 01:00:50,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:50,972 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 355 transitions.
[2024-11-24 01:00:50,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-24 01:00:50,972 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:50,972 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:50,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-24 01:00:51,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:51,173 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:51,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:51,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1768711682, now seen corresponding path program 1 times
[2024-11-24 01:00:51,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:00:51,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689551477]
[2024-11-24 01:00:51,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:51,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:51,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:51,176 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:51,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-24 01:00:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:51,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:51,253 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:51,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:51,708 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:52,218 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:52,218 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:00:52,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689551477]
[2024-11-24 01:00:52,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689551477] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:00:52,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:00:52,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8
[2024-11-24 01:00:52,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667088460]
[2024-11-24 01:00:52,219 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:52,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-24 01:00:52,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:00:52,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-24 01:00:52,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-11-24 01:00:52,221 INFO L87 Difference]: Start difference. First operand 236 states and 355 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:54,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:54,221 INFO L93 Difference]: Finished difference Result 358 states and 490 transitions.
[2024-11-24 01:00:54,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2024-11-24 01:00:54,222 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2024-11-24 01:00:54,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:54,224 INFO L225 Difference]: With dead ends: 358
[2024-11-24 01:00:54,224 INFO L226 Difference]: Without dead ends: 358
[2024-11-24 01:00:54,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462
[2024-11-24 01:00:54,225 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 328 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:54,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 239 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-24 01:00:54,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states.
[2024-11-24 01:00:54,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 274.
[2024-11-24 01:00:54,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 238 states have (on average 1.6218487394957983) internal successors, (386), 259 states have internal predecessors, (386), 9 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22)
[2024-11-24 01:00:54,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 417 transitions.
[2024-11-24 01:00:54,252 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 417 transitions. Word has length 15
[2024-11-24 01:00:54,252 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:54,252 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 417 transitions.
[2024-11-24 01:00:54,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:54,252 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 417 transitions.
[2024-11-24 01:00:54,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-11-24 01:00:54,253 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:54,253 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:54,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-24 01:00:54,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:54,457 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:54,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:54,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1004512660, now seen corresponding path program 1 times
[2024-11-24 01:00:54,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:00:54,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [39982518]
[2024-11-24 01:00:54,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:54,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:54,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:54,461 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:54,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-24 01:00:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:54,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:54,531 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:55,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:55,061 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:55,639 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:55,639 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:00:55,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39982518]
[2024-11-24 01:00:55,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39982518] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:00:55,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:00:55,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8
[2024-11-24 01:00:55,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174537586]
[2024-11-24 01:00:55,640 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:55,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-24 01:00:55,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:00:55,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-24 01:00:55,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-11-24 01:00:55,641 INFO L87 Difference]: Start difference. First operand 274 states and 417 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:57,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:57,588 INFO L93 Difference]: Finished difference Result 499 states and 688 transitions.
[2024-11-24 01:00:57,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-11-24 01:00:57,589 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2024-11-24 01:00:57,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:57,592 INFO L225 Difference]: With dead ends: 499
[2024-11-24 01:00:57,592 INFO L226 Difference]: Without dead ends: 499
[2024-11-24 01:00:57,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306
[2024-11-24 01:00:57,593 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 327 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:57,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 394 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-24 01:00:57,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states.
[2024-11-24 01:00:57,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 378.
[2024-11-24 01:00:57,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 338 states have (on average 1.6538461538461537) internal successors, (559), 359 states have internal predecessors, (559), 11 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (31), 11 states have call predecessors, (31), 11 states have call successors, (31)
[2024-11-24 01:00:57,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 601 transitions.
[2024-11-24 01:00:57,619 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 601 transitions. Word has length 16
[2024-11-24 01:00:57,619 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:57,619 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 601 transitions.
[2024-11-24 01:00:57,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:57,619 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 601 transitions.
[2024-11-24 01:00:57,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2024-11-24 01:00:57,620 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:57,620 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:57,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-11-24 01:00:57,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:57,824 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting parse_inputErr10ASSERT_VIOLATIONMEMORY_FREE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:57,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:57,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1915949067, now seen corresponding path program 1 times
[2024-11-24 01:00:57,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:00:57,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [949264085]
[2024-11-24 01:00:57,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:57,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:57,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:57,829 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:57,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-24 01:00:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:57,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:57,895 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:57,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:57,905 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:00:57,905 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:00:57,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949264085]
[2024-11-24 01:00:57,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949264085] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:00:57,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:00:57,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:00:57,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976956539]
[2024-11-24 01:00:57,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:00:57,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:00:57,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:00:57,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:00:57,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:00:57,906 INFO L87 Difference]: Start difference. First operand 378 states and 601 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:57,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:57,919 INFO L93 Difference]: Finished difference Result 377 states and 597 transitions.
[2024-11-24 01:00:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:00:57,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2024-11-24 01:00:57,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:57,922 INFO L225 Difference]: With dead ends: 377
[2024-11-24 01:00:57,922 INFO L226 Difference]: Without dead ends: 377
[2024-11-24 01:00:57,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:00:57,923 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:57,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:00:57,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states.
[2024-11-24 01:00:57,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377.
[2024-11-24 01:00:57,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 338 states have (on average 1.6420118343195267) internal successors, (555), 358 states have internal predecessors, (555), 11 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (31), 11 states have call predecessors, (31), 11 states have call successors, (31)
[2024-11-24 01:00:57,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 597 transitions.
[2024-11-24 01:00:57,937 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 597 transitions. Word has length 18
[2024-11-24 01:00:57,937 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:57,937 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 597 transitions.
[2024-11-24 01:00:57,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:57,938 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 597 transitions.
[2024-11-24 01:00:57,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-11-24 01:00:57,938 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:57,938 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:57,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-11-24 01:00:58,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:58,139 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting parse_inputErr11ASSERT_VIOLATIONMEMORY_FREE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:58,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:58,140 INFO L85 PathProgramCache]: Analyzing trace with hash -735120992, now seen corresponding path program 1 times
[2024-11-24 01:00:58,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:00:58,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [618415608]
[2024-11-24 01:00:58,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:58,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:58,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:58,142 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:58,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-24 01:00:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:58,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:58,206 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:58,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:58,219 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:00:58,219 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:00:58,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618415608]
[2024-11-24 01:00:58,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618415608] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:00:58,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:00:58,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:00:58,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973084203]
[2024-11-24 01:00:58,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:00:58,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:00:58,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:00:58,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:00:58,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:00:58,221 INFO L87 Difference]: Start difference. First operand 377 states and 597 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:58,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:58,229 INFO L93 Difference]: Finished difference Result 285 states and 431 transitions.
[2024-11-24 01:00:58,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:00:58,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19
[2024-11-24 01:00:58,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:58,231 INFO L225 Difference]: With dead ends: 285
[2024-11-24 01:00:58,231 INFO L226 Difference]: Without dead ends: 285
[2024-11-24 01:00:58,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:00:58,232 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 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
[2024-11-24 01:00:58,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:00:58,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states.
[2024-11-24 01:00:58,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285.
[2024-11-24 01:00:58,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 255 states have (on average 1.5686274509803921) internal successors, (400), 269 states have internal predecessors, (400), 9 states have call successors, (9), 6 states have call predecessors, (9), 7 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22)
[2024-11-24 01:00:58,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 431 transitions.
[2024-11-24 01:00:58,249 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 431 transitions. Word has length 19
[2024-11-24 01:00:58,249 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:58,249 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 431 transitions.
[2024-11-24 01:00:58,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:58,249 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 431 transitions.
[2024-11-24 01:00:58,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-11-24 01:00:58,251 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:58,251 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:58,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-11-24 01:00:58,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:58,452 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting parse_inputErr16ASSERT_VIOLATIONMEMORY_FREE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:58,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:58,452 INFO L85 PathProgramCache]: Analyzing trace with hash -734474496, now seen corresponding path program 1 times
[2024-11-24 01:00:58,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:00:58,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [560037019]
[2024-11-24 01:00:58,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:58,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:58,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:58,454 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:58,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-24 01:00:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:58,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:58,520 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:58,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:58,565 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:00:58,565 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:00:58,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560037019]
[2024-11-24 01:00:58,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560037019] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:00:58,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:00:58,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-24 01:00:58,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048692282]
[2024-11-24 01:00:58,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:00:58,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:00:58,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:00:58,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:00:58,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:00:58,566 INFO L87 Difference]: Start difference. First operand 285 states and 431 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:58,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:58,590 INFO L93 Difference]: Finished difference Result 374 states and 564 transitions.
[2024-11-24 01:00:58,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:00:58,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19
[2024-11-24 01:00:58,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:58,593 INFO L225 Difference]: With dead ends: 374
[2024-11-24 01:00:58,593 INFO L226 Difference]: Without dead ends: 374
[2024-11-24 01:00:58,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:00:58,594 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 32 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:58,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 99 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:00:58,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states.
[2024-11-24 01:00:58,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 364.
[2024-11-24 01:00:58,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 328 states have (on average 1.5670731707317074) internal successors, (514), 343 states have internal predecessors, (514), 12 states have call successors, (12), 8 states have call predecessors, (12), 10 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36)
[2024-11-24 01:00:58,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 562 transitions.
[2024-11-24 01:00:58,622 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 562 transitions. Word has length 19
[2024-11-24 01:00:58,622 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:58,623 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 562 transitions.
[2024-11-24 01:00:58,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:58,623 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 562 transitions.
[2024-11-24 01:00:58,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2024-11-24 01:00:58,624 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:58,624 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:58,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-11-24 01:00:58,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:58,824 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting parse_inputErr17ASSERT_VIOLATIONMEMORY_FREE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:58,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:58,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1293872797, now seen corresponding path program 1 times
[2024-11-24 01:00:58,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:00:58,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1317533771]
[2024-11-24 01:00:58,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:58,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:58,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:58,827 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:58,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-24 01:00:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:58,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:58,898 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:58,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:58,943 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:00:58,943 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:00:58,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317533771]
[2024-11-24 01:00:58,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317533771] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:00:58,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:00:58,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:00:58,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933477558]
[2024-11-24 01:00:58,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:00:58,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:00:58,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:00:58,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:00:58,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:00:58,945 INFO L87 Difference]: Start difference. First operand 364 states and 562 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:58,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:58,986 INFO L93 Difference]: Finished difference Result 335 states and 483 transitions.
[2024-11-24 01:00:58,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 01:00:58,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2024-11-24 01:00:58,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:58,988 INFO L225 Difference]: With dead ends: 335
[2024-11-24 01:00:58,988 INFO L226 Difference]: Without dead ends: 333
[2024-11-24 01:00:58,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:00:58,989 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 28 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:58,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 152 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:00:58,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states.
[2024-11-24 01:00:58,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 322.
[2024-11-24 01:00:58,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 289 states have (on average 1.5259515570934257) internal successors, (441), 304 states have internal predecessors, (441), 10 states have call successors, (10), 7 states have call predecessors, (10), 9 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26)
[2024-11-24 01:00:59,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 477 transitions.
[2024-11-24 01:00:59,001 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 477 transitions. Word has length 20
[2024-11-24 01:00:59,001 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:59,001 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 477 transitions.
[2024-11-24 01:00:59,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:59,002 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 477 transitions.
[2024-11-24 01:00:59,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-11-24 01:00:59,002 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:59,003 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1]
[2024-11-24 01:00:59,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2024-11-24 01:00:59,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:59,206 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:59,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:59,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1024188265, now seen corresponding path program 2 times
[2024-11-24 01:00:59,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:00:59,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954668265]
[2024-11-24 01:00:59,207 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 01:00:59,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:59,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:59,211 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:59,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-11-24 01:00:59,288 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 01:00:59,288 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 01:00:59,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:59,292 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:59,341 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:59,341 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:00:59,419 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:59,419 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:00:59,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954668265]
[2024-11-24 01:00:59,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954668265] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:00:59,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:00:59,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2024-11-24 01:00:59,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687097347]
[2024-11-24 01:00:59,419 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:00:59,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-24 01:00:59,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:00:59,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-24 01:00:59,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-24 01:00:59,420 INFO L87 Difference]: Start difference. First operand 322 states and 477 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:59,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:59,585 INFO L93 Difference]: Finished difference Result 289 states and 400 transitions.
[2024-11-24 01:00:59,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 01:00:59,585 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22
[2024-11-24 01:00:59,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:59,587 INFO L225 Difference]: With dead ends: 289
[2024-11-24 01:00:59,587 INFO L226 Difference]: Without dead ends: 289
[2024-11-24 01:00:59,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-24 01:00:59,588 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 44 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-24 01:00:59,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 296 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-24 01:00:59,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states.
[2024-11-24 01:00:59,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 275.
[2024-11-24 01:00:59,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 242 states have (on average 1.4504132231404958) internal successors, (351), 257 states have internal predecessors, (351), 10 states have call successors, (10), 7 states have call predecessors, (10), 9 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26)
[2024-11-24 01:00:59,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 387 transitions.
[2024-11-24 01:00:59,604 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 387 transitions. Word has length 22
[2024-11-24 01:00:59,604 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:59,604 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 387 transitions.
[2024-11-24 01:00:59,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:00:59,605 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 387 transitions.
[2024-11-24 01:00:59,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-11-24 01:00:59,606 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:59,607 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:59,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-11-24 01:00:59,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:59,808 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:00:59,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:00:59,808 INFO L85 PathProgramCache]: Analyzing trace with hash 774696235, now seen corresponding path program 1 times
[2024-11-24 01:00:59,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:00:59,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451837062]
[2024-11-24 01:00:59,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:00:59,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:00:59,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:00:59,811 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:00:59,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-11-24 01:00:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:00:59,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-24 01:00:59,894 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:00:59,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:00:59,901 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:00:59,901 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:00:59,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451837062]
[2024-11-24 01:00:59,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451837062] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:00:59,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:00:59,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:00:59,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73605741]
[2024-11-24 01:00:59,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:00:59,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:00:59,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:00:59,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:00:59,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:00:59,904 INFO L87 Difference]: Start difference. First operand 275 states and 387 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:00:59,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:00:59,913 INFO L93 Difference]: Finished difference Result 202 states and 270 transitions.
[2024-11-24 01:00:59,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:00:59,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25
[2024-11-24 01:00:59,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:00:59,915 INFO L225 Difference]: With dead ends: 202
[2024-11-24 01:00:59,915 INFO L226 Difference]: Without dead ends: 202
[2024-11-24 01:00:59,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:00:59,916 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 9 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 94 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
[2024-11-24 01:00:59,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 94 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:00:59,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2024-11-24 01:00:59,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202.
[2024-11-24 01:00:59,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 175 states have (on average 1.417142857142857) internal successors, (248), 189 states have internal predecessors, (248), 7 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15)
[2024-11-24 01:00:59,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 270 transitions.
[2024-11-24 01:00:59,929 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 270 transitions. Word has length 25
[2024-11-24 01:00:59,930 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:00:59,930 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 270 transitions.
[2024-11-24 01:00:59,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:00:59,930 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 270 transitions.
[2024-11-24 01:00:59,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2024-11-24 01:00:59,934 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:00:59,934 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:00:59,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0
[2024-11-24 01:01:00,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:00,135 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:01:00,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:01:00,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1328994673, now seen corresponding path program 1 times
[2024-11-24 01:01:00,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:01:00,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1768289773]
[2024-11-24 01:01:00,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:01:00,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:00,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:01:00,138 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:01:00,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-11-24 01:01:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:01:00,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-24 01:01:00,221 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:01:00,466 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-24 01:01:00,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-11-24 01:01:00,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-24 01:01:00,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:00,708 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:01:00,934 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size
[2024-11-24 01:01:00,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14
[2024-11-24 01:01:05,686 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size
[2024-11-24 01:01:05,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14
[2024-11-24 01:01:05,826 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:05,826 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:01:05,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768289773]
[2024-11-24 01:01:05,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768289773] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:01:05,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:01:05,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 9
[2024-11-24 01:01:05,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782414778]
[2024-11-24 01:01:05,826 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:01:05,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-24 01:01:05,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:01:05,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-24 01:01:05,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=74, Unknown=3, NotChecked=0, Total=110
[2024-11-24 01:01:05,828 INFO L87 Difference]: Start difference. First operand 202 states and 270 transitions. Second operand has 11 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:01:09,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:01:12,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:01:12,276 INFO L93 Difference]: Finished difference Result 225 states and 277 transitions.
[2024-11-24 01:01:12,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-24 01:01:12,277 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27
[2024-11-24 01:01:12,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:01:12,279 INFO L225 Difference]: With dead ends: 225
[2024-11-24 01:01:12,279 INFO L226 Difference]: Without dead ends: 225
[2024-11-24 01:01:12,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=119, Invalid=217, Unknown=6, NotChecked=0, Total=342
[2024-11-24 01:01:12,281 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 223 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 44 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time
[2024-11-24 01:01:12,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 93 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 104 Invalid, 10 Unknown, 0 Unchecked, 5.8s Time]
[2024-11-24 01:01:12,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states.
[2024-11-24 01:01:12,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 213.
[2024-11-24 01:01:12,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 186 states have (on average 1.3225806451612903) internal successors, (246), 200 states have internal predecessors, (246), 7 states have call successors, (7), 5 states have call predecessors, (7), 9 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17)
[2024-11-24 01:01:12,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 270 transitions.
[2024-11-24 01:01:12,295 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 270 transitions. Word has length 27
[2024-11-24 01:01:12,295 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:01:12,295 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 270 transitions.
[2024-11-24 01:01:12,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:01:12,296 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 270 transitions.
[2024-11-24 01:01:12,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2024-11-24 01:01:12,299 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:01:12,299 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:01:12,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2024-11-24 01:01:12,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:12,500 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:01:12,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:01:12,500 INFO L85 PathProgramCache]: Analyzing trace with hash -2144774448, now seen corresponding path program 1 times
[2024-11-24 01:01:12,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:01:12,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2013263550]
[2024-11-24 01:01:12,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:01:12,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:12,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:01:12,505 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:01:12,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-11-24 01:01:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:01:12,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-24 01:01:12,596 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:01:13,049 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:13,049 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:01:13,645 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:13,646 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:01:13,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013263550]
[2024-11-24 01:01:13,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013263550] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:01:13,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:01:13,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2024-11-24 01:01:13,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378564361]
[2024-11-24 01:01:13,646 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:01:13,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-24 01:01:13,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:01:13,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-24 01:01:13,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-11-24 01:01:13,648 INFO L87 Difference]: Start difference. First operand 213 states and 270 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-24 01:01:14,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:01:14,731 INFO L93 Difference]: Finished difference Result 320 states and 374 transitions.
[2024-11-24 01:01:14,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-24 01:01:14,732 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28
[2024-11-24 01:01:14,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:01:14,734 INFO L225 Difference]: With dead ends: 320
[2024-11-24 01:01:14,734 INFO L226 Difference]: Without dead ends: 320
[2024-11-24 01:01:14,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272
[2024-11-24 01:01:14,736 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 221 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-24 01:01:14,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 215 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-24 01:01:14,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states.
[2024-11-24 01:01:14,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 287.
[2024-11-24 01:01:14,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 257 states have (on average 1.2879377431906616) internal successors, (331), 272 states have internal predecessors, (331), 7 states have call successors, (7), 7 states have call predecessors, (7), 12 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16)
[2024-11-24 01:01:14,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 354 transitions.
[2024-11-24 01:01:14,750 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 354 transitions. Word has length 28
[2024-11-24 01:01:14,751 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:01:14,751 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 354 transitions.
[2024-11-24 01:01:14,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-24 01:01:14,751 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 354 transitions.
[2024-11-24 01:01:14,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2024-11-24 01:01:14,752 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:01:14,753 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:01:14,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0
[2024-11-24 01:01:14,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:14,954 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting parse_inputErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:01:14,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:01:14,954 INFO L85 PathProgramCache]: Analyzing trace with hash -2063498398, now seen corresponding path program 1 times
[2024-11-24 01:01:14,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:01:14,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1742517496]
[2024-11-24 01:01:14,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:01:14,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:14,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:01:14,957 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:01:14,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2024-11-24 01:01:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:01:15,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-24 01:01:15,048 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:01:15,537 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:15,537 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:01:16,099 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:16,099 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:01:16,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742517496]
[2024-11-24 01:01:16,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742517496] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:01:16,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:01:16,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8
[2024-11-24 01:01:16,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140622951]
[2024-11-24 01:01:16,100 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:01:16,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-24 01:01:16,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:01:16,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-24 01:01:16,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90
[2024-11-24 01:01:16,102 INFO L87 Difference]: Start difference. First operand 287 states and 354 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:01:17,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:01:17,201 INFO L93 Difference]: Finished difference Result 303 states and 354 transitions.
[2024-11-24 01:01:17,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-24 01:01:17,203 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29
[2024-11-24 01:01:17,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:01:17,204 INFO L225 Difference]: With dead ends: 303
[2024-11-24 01:01:17,204 INFO L226 Difference]: Without dead ends: 303
[2024-11-24 01:01:17,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342
[2024-11-24 01:01:17,205 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 297 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-24 01:01:17,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 214 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-24 01:01:17,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states.
[2024-11-24 01:01:17,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 287.
[2024-11-24 01:01:17,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 257 states have (on average 1.2568093385214008) internal successors, (323), 272 states have internal predecessors, (323), 7 states have call successors, (7), 7 states have call predecessors, (7), 12 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16)
[2024-11-24 01:01:17,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 346 transitions.
[2024-11-24 01:01:17,217 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 346 transitions. Word has length 29
[2024-11-24 01:01:17,218 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:01:17,218 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 346 transitions.
[2024-11-24 01:01:17,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:01:17,218 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 346 transitions.
[2024-11-24 01:01:17,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2024-11-24 01:01:17,218 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:01:17,218 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:01:17,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0
[2024-11-24 01:01:17,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:17,422 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:01:17,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:01:17,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1558595314, now seen corresponding path program 1 times
[2024-11-24 01:01:17,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:01:17,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073600174]
[2024-11-24 01:01:17,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:01:17,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:17,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:01:17,424 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:01:17,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2024-11-24 01:01:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:01:17,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-24 01:01:17,525 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:01:18,721 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-24 01:01:18,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-24 01:01:19,117 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:19,117 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:01:23,735 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:01:23,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073600174]
[2024-11-24 01:01:23,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073600174] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:01:23,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [693580275]
[2024-11-24 01:01:23,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:01:23,735 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-24 01:01:23,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-24 01:01:23,737 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-24 01:01:23,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process
[2024-11-24 01:01:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:01:23,963 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-11-24 01:01:23,965 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:01:25,051 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-24 01:01:25,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-24 01:01:25,231 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:25,231 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:01:29,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [693580275] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:01:29,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:01:29,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 7
[2024-11-24 01:01:29,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457684930]
[2024-11-24 01:01:29,630 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:01:29,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-24 01:01:29,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:01:29,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-24 01:01:29,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156
[2024-11-24 01:01:29,631 INFO L87 Difference]: Start difference. First operand 287 states and 346 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:01:31,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:01:31,714 INFO L93 Difference]: Finished difference Result 300 states and 353 transitions.
[2024-11-24 01:01:31,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-11-24 01:01:31,715 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29
[2024-11-24 01:01:31,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:01:31,716 INFO L225 Difference]: With dead ends: 300
[2024-11-24 01:01:31,716 INFO L226 Difference]: Without dead ends: 300
[2024-11-24 01:01:31,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=152, Invalid=399, Unknown=1, NotChecked=0, Total=552
[2024-11-24 01:01:31,718 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 120 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-24 01:01:31,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 128 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-24 01:01:31,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states.
[2024-11-24 01:01:31,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 287.
[2024-11-24 01:01:31,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 257 states have (on average 1.2412451361867705) internal successors, (319), 272 states have internal predecessors, (319), 7 states have call successors, (7), 7 states have call predecessors, (7), 12 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16)
[2024-11-24 01:01:31,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 342 transitions.
[2024-11-24 01:01:31,741 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 342 transitions. Word has length 29
[2024-11-24 01:01:31,741 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:01:31,742 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 342 transitions.
[2024-11-24 01:01:31,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:01:31,742 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 342 transitions.
[2024-11-24 01:01:31,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2024-11-24 01:01:31,742 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:01:31,742 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:01:31,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0
[2024-11-24 01:01:31,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0
[2024-11-24 01:01:32,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:32,144 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting parse_inputErr16ASSERT_VIOLATIONMEMORY_FREE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:01:32,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:01:32,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1198975028, now seen corresponding path program 1 times
[2024-11-24 01:01:32,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:01:32,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1846448219]
[2024-11-24 01:01:32,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:01:32,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:32,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:01:32,148 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:01:32,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2024-11-24 01:01:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:01:32,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 01:01:32,282 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:01:32,477 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:32,477 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:01:32,687 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:32,687 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:01:32,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846448219]
[2024-11-24 01:01:32,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846448219] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:01:32,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:01:32,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3
[2024-11-24 01:01:32,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587046229]
[2024-11-24 01:01:32,688 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:01:32,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:01:32,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:01:32,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:01:32,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:01:32,689 INFO L87 Difference]: Start difference. First operand 287 states and 342 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:01:32,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:01:32,752 INFO L93 Difference]: Finished difference Result 286 states and 341 transitions.
[2024-11-24 01:01:32,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:01:32,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40
[2024-11-24 01:01:32,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:01:32,754 INFO L225 Difference]: With dead ends: 286
[2024-11-24 01:01:32,754 INFO L226 Difference]: Without dead ends: 286
[2024-11-24 01:01:32,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:01:32,755 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 34 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:01:32,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 82 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:01:32,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states.
[2024-11-24 01:01:32,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286.
[2024-11-24 01:01:32,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 257 states have (on average 1.2373540856031129) internal successors, (318), 271 states have internal predecessors, (318), 7 states have call successors, (7), 7 states have call predecessors, (7), 12 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16)
[2024-11-24 01:01:32,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 341 transitions.
[2024-11-24 01:01:32,767 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 341 transitions. Word has length 40
[2024-11-24 01:01:32,768 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:01:32,768 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 341 transitions.
[2024-11-24 01:01:32,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:01:32,768 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 341 transitions.
[2024-11-24 01:01:32,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2024-11-24 01:01:32,769 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:01:32,770 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:01:32,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0
[2024-11-24 01:01:32,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:32,971 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting parse_inputErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:01:32,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:01:32,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1561270818, now seen corresponding path program 1 times
[2024-11-24 01:01:32,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:01:32,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1879296615]
[2024-11-24 01:01:32,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:01:32,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:32,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:01:32,975 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:01:32,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2024-11-24 01:01:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:01:33,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-24 01:01:33,111 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:01:33,739 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-24 01:01:33,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-11-24 01:01:34,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-24 01:01:34,835 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:34,836 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:01:35,918 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size
[2024-11-24 01:01:35,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14
[2024-11-24 01:01:40,824 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size
[2024-11-24 01:01:40,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14
[2024-11-24 01:01:40,982 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:40,982 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:01:40,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879296615]
[2024-11-24 01:01:40,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879296615] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:01:40,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:01:40,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 11
[2024-11-24 01:01:40,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618144211]
[2024-11-24 01:01:40,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:01:40,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-24 01:01:40,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:01:40,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-24 01:01:40,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=110, Unknown=4, NotChecked=0, Total=156
[2024-11-24 01:01:40,984 INFO L87 Difference]: Start difference. First operand 286 states and 341 transitions. Second operand has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:01:44,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:01:47,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:01:47,859 INFO L93 Difference]: Finished difference Result 297 states and 344 transitions.
[2024-11-24 01:01:47,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-24 01:01:47,860 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41
[2024-11-24 01:01:47,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:01:47,861 INFO L225 Difference]: With dead ends: 297
[2024-11-24 01:01:47,861 INFO L226 Difference]: Without dead ends: 297
[2024-11-24 01:01:47,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=130, Invalid=282, Unknown=8, NotChecked=0, Total=420
[2024-11-24 01:01:47,862 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 160 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 29 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:01:47,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 104 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 136 Invalid, 10 Unknown, 0 Unchecked, 6.0s Time]
[2024-11-24 01:01:47,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states.
[2024-11-24 01:01:47,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 280.
[2024-11-24 01:01:47,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 253 states have (on average 1.209486166007905) internal successors, (306), 265 states have internal predecessors, (306), 7 states have call successors, (7), 7 states have call predecessors, (7), 12 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16)
[2024-11-24 01:01:47,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 329 transitions.
[2024-11-24 01:01:47,871 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 329 transitions. Word has length 41
[2024-11-24 01:01:47,871 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:01:47,871 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 329 transitions.
[2024-11-24 01:01:47,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:01:47,872 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 329 transitions.
[2024-11-24 01:01:47,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2024-11-24 01:01:47,872 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:01:47,872 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:01:47,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0
[2024-11-24 01:01:48,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:48,073 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting parse_inputErr17ASSERT_VIOLATIONMEMORY_FREE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:01:48,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:01:48,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1486479697, now seen corresponding path program 1 times
[2024-11-24 01:01:48,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:01:48,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1282484124]
[2024-11-24 01:01:48,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:01:48,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:48,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:01:48,075 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:01:48,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2024-11-24 01:01:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:01:48,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 01:01:48,165 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:01:48,507 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:48,507 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:01:48,828 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:48,828 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:01:48,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282484124]
[2024-11-24 01:01:48,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282484124] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:01:48,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:01:48,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3
[2024-11-24 01:01:48,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56311947]
[2024-11-24 01:01:48,829 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:01:48,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:01:48,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:01:48,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:01:48,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:01:48,830 INFO L87 Difference]: Start difference. First operand 280 states and 329 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:01:48,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:01:48,992 INFO L93 Difference]: Finished difference Result 279 states and 328 transitions.
[2024-11-24 01:01:48,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:01:48,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41
[2024-11-24 01:01:48,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:01:48,995 INFO L225 Difference]: With dead ends: 279
[2024-11-24 01:01:48,995 INFO L226 Difference]: Without dead ends: 279
[2024-11-24 01:01:48,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:01:48,997 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 29 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:01:48,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 67 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:01:48,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states.
[2024-11-24 01:01:49,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279.
[2024-11-24 01:01:49,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 253 states have (on average 1.2055335968379446) internal successors, (305), 264 states have internal predecessors, (305), 7 states have call successors, (7), 7 states have call predecessors, (7), 12 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16)
[2024-11-24 01:01:49,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 328 transitions.
[2024-11-24 01:01:49,004 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 328 transitions. Word has length 41
[2024-11-24 01:01:49,004 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:01:49,004 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 328 transitions.
[2024-11-24 01:01:49,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:01:49,004 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 328 transitions.
[2024-11-24 01:01:49,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2024-11-24 01:01:49,004 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:01:49,005 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:01:49,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0
[2024-11-24 01:01:49,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:49,205 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting parse_inputErr18ASSERT_VIOLATIONMEMORY_FREE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:01:49,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:01:49,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1163769750, now seen corresponding path program 1 times
[2024-11-24 01:01:49,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:01:49,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [538161430]
[2024-11-24 01:01:49,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:01:49,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:49,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:01:49,207 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:01:49,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2024-11-24 01:01:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:01:49,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-24 01:01:49,304 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:01:49,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2024-11-24 01:01:49,718 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size
[2024-11-24 01:01:49,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20
[2024-11-24 01:01:49,785 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:49,786 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:01:50,259 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:50,259 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:01:50,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538161430]
[2024-11-24 01:01:50,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538161430] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:01:50,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:01:50,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3
[2024-11-24 01:01:50,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480347512]
[2024-11-24 01:01:50,259 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:01:50,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:01:50,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:01:50,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:01:50,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:01:50,260 INFO L87 Difference]: Start difference. First operand 279 states and 328 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:01:50,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:01:50,682 INFO L93 Difference]: Finished difference Result 294 states and 339 transitions.
[2024-11-24 01:01:50,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 01:01:50,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42
[2024-11-24 01:01:50,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:01:50,684 INFO L225 Difference]: With dead ends: 294
[2024-11-24 01:01:50,684 INFO L226 Difference]: Without dead ends: 294
[2024-11-24 01:01:50,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:01:50,685 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 24 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-24 01:01:50,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 139 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-24 01:01:50,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states.
[2024-11-24 01:01:50,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 282.
[2024-11-24 01:01:50,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 256 states have (on average 1.203125) internal successors, (308), 267 states have internal predecessors, (308), 7 states have call successors, (7), 7 states have call predecessors, (7), 12 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16)
[2024-11-24 01:01:50,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 331 transitions.
[2024-11-24 01:01:50,694 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 331 transitions. Word has length 42
[2024-11-24 01:01:50,694 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:01:50,694 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 331 transitions.
[2024-11-24 01:01:50,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-24 01:01:50,694 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 331 transitions.
[2024-11-24 01:01:50,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2024-11-24 01:01:50,695 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:01:50,695 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:01:50,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0
[2024-11-24 01:01:50,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:50,896 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:01:50,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:01:50,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2033280942, now seen corresponding path program 1 times
[2024-11-24 01:01:50,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:01:50,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853145412]
[2024-11-24 01:01:50,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:01:50,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:50,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:01:50,899 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:01:50,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process
[2024-11-24 01:01:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:01:50,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-24 01:01:50,982 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:01:51,709 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-11-24 01:01:51,709 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:01:52,817 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-11-24 01:01:52,817 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:01:52,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853145412]
[2024-11-24 01:01:52,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853145412] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:01:52,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:01:52,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2024-11-24 01:01:52,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210690318]
[2024-11-24 01:01:52,818 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:01:52,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-24 01:01:52,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:01:52,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-24 01:01:52,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-11-24 01:01:52,819 INFO L87 Difference]: Start difference. First operand 282 states and 331 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2024-11-24 01:01:54,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:01:54,048 INFO L93 Difference]: Finished difference Result 297 states and 339 transitions.
[2024-11-24 01:01:54,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-24 01:01:54,049 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 47
[2024-11-24 01:01:54,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:01:54,050 INFO L225 Difference]: With dead ends: 297
[2024-11-24 01:01:54,050 INFO L226 Difference]: Without dead ends: 297
[2024-11-24 01:01:54,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272
[2024-11-24 01:01:54,051 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 199 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-24 01:01:54,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 191 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-24 01:01:54,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states.
[2024-11-24 01:01:54,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 282.
[2024-11-24 01:01:54,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 256 states have (on average 1.19140625) internal successors, (305), 267 states have internal predecessors, (305), 7 states have call successors, (7), 7 states have call predecessors, (7), 12 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16)
[2024-11-24 01:01:54,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 328 transitions.
[2024-11-24 01:01:54,059 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 328 transitions. Word has length 47
[2024-11-24 01:01:54,059 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:01:54,060 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 328 transitions.
[2024-11-24 01:01:54,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2024-11-24 01:01:54,060 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 328 transitions.
[2024-11-24 01:01:54,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2024-11-24 01:01:54,061 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:01:54,061 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:01:54,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0
[2024-11-24 01:01:54,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:54,261 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting parse_inputErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:01:54,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:01:54,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1392800188, now seen corresponding path program 1 times
[2024-11-24 01:01:54,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:01:54,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1839055515]
[2024-11-24 01:01:54,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:01:54,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:54,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:01:54,264 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:01:54,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process
[2024-11-24 01:01:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:01:54,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-24 01:01:54,349 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:01:55,095 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-11-24 01:01:55,095 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:01:56,227 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-11-24 01:01:56,227 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:01:56,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839055515]
[2024-11-24 01:01:56,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839055515] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:01:56,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:01:56,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8
[2024-11-24 01:01:56,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183922334]
[2024-11-24 01:01:56,227 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:01:56,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-24 01:01:56,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:01:56,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-24 01:01:56,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90
[2024-11-24 01:01:56,228 INFO L87 Difference]: Start difference. First operand 282 states and 328 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-24 01:01:57,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:01:57,655 INFO L93 Difference]: Finished difference Result 290 states and 332 transitions.
[2024-11-24 01:01:57,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-24 01:01:57,657 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 48
[2024-11-24 01:01:57,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:01:57,658 INFO L225 Difference]: With dead ends: 290
[2024-11-24 01:01:57,658 INFO L226 Difference]: Without dead ends: 290
[2024-11-24 01:01:57,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342
[2024-11-24 01:01:57,659 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 187 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-24 01:01:57,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 245 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-24 01:01:57,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states.
[2024-11-24 01:01:57,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 281.
[2024-11-24 01:01:57,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 256 states have (on average 1.17578125) internal successors, (301), 266 states have internal predecessors, (301), 7 states have call successors, (7), 7 states have call predecessors, (7), 12 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16)
[2024-11-24 01:01:57,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 324 transitions.
[2024-11-24 01:01:57,666 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 324 transitions. Word has length 48
[2024-11-24 01:01:57,666 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:01:57,666 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 324 transitions.
[2024-11-24 01:01:57,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-24 01:01:57,667 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 324 transitions.
[2024-11-24 01:01:57,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2024-11-24 01:01:57,667 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:01:57,667 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:01:57,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0
[2024-11-24 01:01:57,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:57,868 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:01:57,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:01:57,869 INFO L85 PathProgramCache]: Analyzing trace with hash -524851487, now seen corresponding path program 1 times
[2024-11-24 01:01:57,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:01:57,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [603201009]
[2024-11-24 01:01:57,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:01:57,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:01:57,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:01:57,871 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:01:57,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process
[2024-11-24 01:01:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:01:57,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-24 01:01:57,977 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:01:58,131 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-24 01:01:58,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-11-24 01:01:58,736 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size
[2024-11-24 01:01:58,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20
[2024-11-24 01:01:58,918 INFO L349 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size
[2024-11-24 01:01:58,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17
[2024-11-24 01:01:59,121 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:01:59,121 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:01:59,388 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size
[2024-11-24 01:01:59,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 63
[2024-11-24 01:02:04,311 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size
[2024-11-24 01:02:04,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 128 treesize of output 123
[2024-11-24 01:02:04,696 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:02:04,696 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:02:04,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603201009]
[2024-11-24 01:02:04,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603201009] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:02:04,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:02:04,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 10
[2024-11-24 01:02:04,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784972363]
[2024-11-24 01:02:04,697 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:02:04,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-24 01:02:04,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:02:04,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-24 01:02:04,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=77, Unknown=1, NotChecked=0, Total=110
[2024-11-24 01:02:04,698 INFO L87 Difference]: Start difference. First operand 281 states and 324 transitions. Second operand has 11 states, 10 states have (on average 6.4) internal successors, (64), 11 states have internal predecessors, (64), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:02:05,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:02:05,196 INFO L93 Difference]: Finished difference Result 286 states and 329 transitions.
[2024-11-24 01:02:05,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 01:02:05,197 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.4) internal successors, (64), 11 states have internal predecessors, (64), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51
[2024-11-24 01:02:05,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:02:05,198 INFO L225 Difference]: With dead ends: 286
[2024-11-24 01:02:05,198 INFO L226 Difference]: Without dead ends: 286
[2024-11-24 01:02:05,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=64, Invalid=117, Unknown=1, NotChecked=0, Total=182
[2024-11-24 01:02:05,199 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 109 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-24 01:02:05,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 46 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-24 01:02:05,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states.
[2024-11-24 01:02:05,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280.
[2024-11-24 01:02:05,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 256 states have (on average 1.171875) internal successors, (300), 265 states have internal predecessors, (300), 7 states have call successors, (7), 7 states have call predecessors, (7), 12 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16)
[2024-11-24 01:02:05,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 323 transitions.
[2024-11-24 01:02:05,207 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 323 transitions. Word has length 51
[2024-11-24 01:02:05,207 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:02:05,207 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 323 transitions.
[2024-11-24 01:02:05,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.4) internal successors, (64), 11 states have internal predecessors, (64), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:02:05,208 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 323 transitions.
[2024-11-24 01:02:05,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2024-11-24 01:02:05,209 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:02:05,209 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:02:05,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0
[2024-11-24 01:02:05,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:02:05,409 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:02:05,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:02:05,410 INFO L85 PathProgramCache]: Analyzing trace with hash 909473069, now seen corresponding path program 1 times
[2024-11-24 01:02:05,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:02:05,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772785888]
[2024-11-24 01:02:05,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:02:05,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:02:05,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:02:05,412 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:02:05,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process
[2024-11-24 01:02:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:02:05,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-24 01:02:05,509 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:02:06,520 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-24 01:02:06,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-11-24 01:02:07,765 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size
[2024-11-24 01:02:07,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20
[2024-11-24 01:02:08,051 INFO L349 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size
[2024-11-24 01:02:08,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17
[2024-11-24 01:02:08,788 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:02:08,788 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:02:09,496 INFO L349 Elim1Store]: treesize reduction 7, result has 50.0 percent of original size
[2024-11-24 01:02:09,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 196 treesize of output 183
[2024-11-24 01:02:15,097 INFO L349 Elim1Store]: treesize reduction 7, result has 82.1 percent of original size
[2024-11-24 01:02:15,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 115
[2024-11-24 01:02:17,425 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:02:17,426 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:02:17,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772785888]
[2024-11-24 01:02:17,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772785888] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:02:17,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:02:17,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 25
[2024-11-24 01:02:17,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512342677]
[2024-11-24 01:02:17,426 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:02:17,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2024-11-24 01:02:17,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:02:17,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2024-11-24 01:02:17,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=606, Unknown=1, NotChecked=0, Total=702
[2024-11-24 01:02:17,429 INFO L87 Difference]: Start difference. First operand 280 states and 323 transitions. Second operand has 27 states, 24 states have (on average 3.9166666666666665) internal successors, (94), 22 states have internal predecessors, (94), 4 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-24 01:02:19,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:02:19,840 INFO L93 Difference]: Finished difference Result 293 states and 335 transitions.
[2024-11-24 01:02:19,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-24 01:02:19,840 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 3.9166666666666665) internal successors, (94), 22 states have internal predecessors, (94), 4 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 52
[2024-11-24 01:02:19,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:02:19,841 INFO L225 Difference]: With dead ends: 293
[2024-11-24 01:02:19,841 INFO L226 Difference]: Without dead ends: 293
[2024-11-24 01:02:19,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=221, Invalid=900, Unknown=1, NotChecked=0, Total=1122
[2024-11-24 01:02:19,842 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 310 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-24 01:02:19,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 135 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-24 01:02:19,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states.
[2024-11-24 01:02:19,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 280.
[2024-11-24 01:02:19,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 256 states have (on average 1.16796875) internal successors, (299), 265 states have internal predecessors, (299), 7 states have call successors, (7), 7 states have call predecessors, (7), 12 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16)
[2024-11-24 01:02:19,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 322 transitions.
[2024-11-24 01:02:19,850 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 322 transitions. Word has length 52
[2024-11-24 01:02:19,851 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:02:19,851 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 322 transitions.
[2024-11-24 01:02:19,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 3.9166666666666665) internal successors, (94), 22 states have internal predecessors, (94), 4 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-24 01:02:19,851 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 322 transitions.
[2024-11-24 01:02:19,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2024-11-24 01:02:19,852 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:02:19,852 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:02:19,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0
[2024-11-24 01:02:20,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:02:20,053 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:02:20,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:02:20,053 INFO L85 PathProgramCache]: Analyzing trace with hash 2125259695, now seen corresponding path program 1 times
[2024-11-24 01:02:20,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:02:20,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1374853512]
[2024-11-24 01:02:20,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:02:20,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:02:20,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:02:20,055 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:02:20,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process
[2024-11-24 01:02:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:02:20,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-24 01:02:20,165 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:02:20,691 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size
[2024-11-24 01:02:20,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20
[2024-11-24 01:02:22,244 INFO L349 Elim1Store]: treesize reduction 67, result has 31.6 percent of original size
[2024-11-24 01:02:22,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 89
[2024-11-24 01:02:22,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 15
[2024-11-24 01:02:22,905 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:02:22,905 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:02:27,515 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:02:27,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374853512]
[2024-11-24 01:02:27,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374853512] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:02:27,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1547384692]
[2024-11-24 01:02:27,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:02:27,515 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-24 01:02:27,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-24 01:02:27,517 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-24 01:02:27,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process
[2024-11-24 01:02:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:02:27,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-24 01:02:27,980 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:02:28,367 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size
[2024-11-24 01:02:28,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20
[2024-11-24 01:02:36,886 WARN L873 $PredicateComparison]: unable to prove that (exists ((|parse_input_c1_~x~0#1.base| (_ BitVec 32))) (= |c_#valid| (store (store |c_old(#valid)| |parse_input_c1_~x~0#1.base| (_ bv1 1)) |c_old(~global~0.base)| (select |c_#valid| |c_old(~global~0.base)|)))) is different from true
[2024-11-24 01:02:37,106 INFO L349 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size
[2024-11-24 01:02:37,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 24
[2024-11-24 01:02:37,253 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked.
[2024-11-24 01:02:37,253 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:02:48,018 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:02:48,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1547384692] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:02:48,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 01:02:48,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 9] total 19
[2024-11-24 01:02:48,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790410059]
[2024-11-24 01:02:48,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:02:48,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2024-11-24 01:02:48,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:02:48,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2024-11-24 01:02:48,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=329, Unknown=5, NotChecked=38, Total=462
[2024-11-24 01:02:48,020 INFO L87 Difference]: Start difference. First operand 280 states and 322 transitions. Second operand has 21 states, 19 states have (on average 5.578947368421052) internal successors, (106), 17 states have internal predecessors, (106), 2 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-24 01:02:52,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:03:04,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:03:08,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:03:12,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:03:16,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:03:20,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:03:24,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:03:28,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:03:32,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:03:36,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:03:40,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:03:44,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:03:48,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:04:00,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:04:04,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:04:08,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:04:12,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:04:16,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:04:20,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:04:24,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:04:28,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:04:32,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:04:36,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:04:40,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:04:44,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:04:48,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:04:52,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:04:56,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:05:00,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:05:04,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:05:08,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:05:12,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:05:16,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:05:20,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:05:24,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:05:28,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:05:32,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:05:36,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:05:40,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:05:44,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:05:48,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:05:53,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:05:57,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:06:01,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:06:05,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:06:09,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:06:13,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:06:17,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:06:21,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:06:25,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:06:29,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:06:33,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:06:37,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:06:41,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:06:45,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:06:49,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:07:02,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:07:06,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:07:18,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:07:22,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:07:42,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:07:46,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:07:50,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:07:54,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:07:58,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:08:02,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:08:06,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:08:10,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:08:14,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:08:18,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:08:22,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:08:26,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:08:30,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:08:34,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:08:38,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:08:42,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:08:46,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:08:50,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:08:54,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:08:58,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:09:02,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:09:06,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:09:10,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:09:14,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:09:18,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:09:22,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:09:26,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:09:30,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:09:35,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:09:39,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:09:43,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:09:47,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:09:51,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:09:55,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:09:59,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:10:03,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:10:07,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:10:11,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:10:15,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:10:19,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:10:23,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:10:27,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:10:36,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:10:36,250 INFO L93 Difference]: Finished difference Result 293 states and 334 transitions.
[2024-11-24 01:10:36,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-11-24 01:10:36,251 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 5.578947368421052) internal successors, (106), 17 states have internal predecessors, (106), 2 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54
[2024-11-24 01:10:36,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:10:36,252 INFO L225 Difference]: With dead ends: 293
[2024-11-24 01:10:36,252 INFO L226 Difference]: Without dead ends: 293
[2024-11-24 01:10:36,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 144 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 80.0s TimeCoverageRelationStatistics Valid=292, Invalid=815, Unknown=19, NotChecked=64, Total=1190
[2024-11-24 01:10:36,253 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 232 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 31 mSolverCounterUnsat, 103 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 410.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 103 IncrementalHoareTripleChecker+Unknown, 87 IncrementalHoareTripleChecker+Unchecked, 410.3s IncrementalHoareTripleChecker+Time
[2024-11-24 01:10:36,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 256 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 313 Invalid, 103 Unknown, 87 Unchecked, 410.3s Time]
[2024-11-24 01:10:36,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states.
[2024-11-24 01:10:36,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 287.
[2024-11-24 01:10:36,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 263 states have (on average 1.1596958174904943) internal successors, (305), 272 states have internal predecessors, (305), 7 states have call successors, (7), 7 states have call predecessors, (7), 13 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16)
[2024-11-24 01:10:36,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 328 transitions.
[2024-11-24 01:10:36,262 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 328 transitions. Word has length 54
[2024-11-24 01:10:36,263 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:10:36,263 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 328 transitions.
[2024-11-24 01:10:36,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 5.578947368421052) internal successors, (106), 17 states have internal predecessors, (106), 2 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-24 01:10:36,263 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 328 transitions.
[2024-11-24 01:10:36,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2024-11-24 01:10:36,263 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:10:36,263 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:10:36,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0
[2024-11-24 01:10:36,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0
[2024-11-24 01:10:36,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:10:36,664 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:10:36,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:10:36,665 INFO L85 PathProgramCache]: Analyzing trace with hash -506459732, now seen corresponding path program 1 times
[2024-11-24 01:10:36,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:10:36,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [981489226]
[2024-11-24 01:10:36,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:10:36,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:10:36,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:10:36,667 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:10:36,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process
[2024-11-24 01:10:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:10:36,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 01:10:36,762 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:10:37,131 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 37 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-24 01:10:37,131 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:10:37,694 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 37 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-24 01:10:37,694 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:10:37,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981489226]
[2024-11-24 01:10:37,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981489226] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:10:37,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:10:37,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7
[2024-11-24 01:10:37,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186577378]
[2024-11-24 01:10:37,695 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:10:37,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-24 01:10:37,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:10:37,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-24 01:10:37,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-24 01:10:37,696 INFO L87 Difference]: Start difference. First operand 287 states and 328 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:10:38,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:10:38,203 INFO L93 Difference]: Finished difference Result 249 states and 278 transitions.
[2024-11-24 01:10:38,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-24 01:10:38,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 58
[2024-11-24 01:10:38,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:10:38,205 INFO L225 Difference]: With dead ends: 249
[2024-11-24 01:10:38,205 INFO L226 Difference]: Without dead ends: 249
[2024-11-24 01:10:38,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132
[2024-11-24 01:10:38,206 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 58 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-24 01:10:38,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 229 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-24 01:10:38,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states.
[2024-11-24 01:10:38,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 243.
[2024-11-24 01:10:38,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 223 states have (on average 1.147982062780269) internal successors, (256), 230 states have internal predecessors, (256), 6 states have call successors, (6), 6 states have call predecessors, (6), 10 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11)
[2024-11-24 01:10:38,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 273 transitions.
[2024-11-24 01:10:38,217 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 273 transitions. Word has length 58
[2024-11-24 01:10:38,218 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:10:38,218 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 273 transitions.
[2024-11-24 01:10:38,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-24 01:10:38,218 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 273 transitions.
[2024-11-24 01:10:38,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-11-24 01:10:38,219 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:10:38,219 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:10:38,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0
[2024-11-24 01:10:38,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:10:38,422 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE === [parse_inputErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] ===
[2024-11-24 01:10:38,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:10:38,422 INFO L85 PathProgramCache]: Analyzing trace with hash 2035852867, now seen corresponding path program 1 times
[2024-11-24 01:10:38,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-24 01:10:38,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [984303642]
[2024-11-24 01:10:38,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:10:38,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:10:38,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:10:38,424 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:10:38,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process
[2024-11-24 01:10:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:10:38,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-24 01:10:38,531 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:10:39,632 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size
[2024-11-24 01:10:39,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20
[2024-11-24 01:10:41,375 INFO L349 Elim1Store]: treesize reduction 67, result has 31.6 percent of original size
[2024-11-24 01:10:41,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 89
[2024-11-24 01:10:41,886 INFO L349 Elim1Store]: treesize reduction 81, result has 17.3 percent of original size
[2024-11-24 01:10:41,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 78
[2024-11-24 01:10:41,997 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size
[2024-11-24 01:10:41,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 15
[2024-11-24 01:10:42,811 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 13 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:10:42,811 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:10:43,798 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-24 01:10:43,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984303642]
[2024-11-24 01:10:43,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984303642] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:10:43,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1922196027]
[2024-11-24 01:10:43,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:10:43,799 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-24 01:10:43,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/cvc4
[2024-11-24 01:10:43,801 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-24 01:10:43,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a784a0b7-0de1-44f4-abb3-e37db8430b28/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process
[2024-11-24 01:10:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:10:44,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-11-24 01:10:44,428 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:10:45,501 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size
[2024-11-24 01:10:45,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36
[2024-11-24 01:10:59,145 INFO L349 Elim1Store]: treesize reduction 46, result has 36.1 percent of original size
[2024-11-24 01:10:59,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 36
[2024-11-24 01:11:00,273 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 13 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:11:00,273 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:11:00,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1922196027] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:11:00,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-24 01:11:00,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18
[2024-11-24 01:11:00,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214099256]
[2024-11-24 01:11:00,825 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:11:00,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-11-24 01:11:00,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-24 01:11:00,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-11-24 01:11:00,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=544, Unknown=11, NotChecked=0, Total=650
[2024-11-24 01:11:00,826 INFO L87 Difference]: Start difference. First operand 243 states and 273 transitions. Second operand has 20 states, 17 states have (on average 4.647058823529412) internal successors, (79), 17 states have internal predecessors, (79), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-24 01:11:04,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:11:17,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:11:21,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:11:33,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:11:37,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:11:41,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:11:45,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:11:49,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:11:53,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:11:57,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:12:01,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:12:05,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:12:09,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:12:13,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:12:17,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:12:21,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:12:25,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:12:29,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:12:33,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:12:37,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:12:41,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:12:53,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:12:57,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:13:01,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:13:05,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:13:09,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:13:13,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:13:17,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:13:21,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:13:25,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:13:29,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:13:42,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:13:46,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:13:50,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:13:54,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:13:58,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:14:02,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:14:06,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:14:10,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:14:14,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:14:18,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:14:22,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:14:26,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:14:30,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:14:34,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-24 01:14:38,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]