./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5c58e2434ae79fdf5f8dceab88ea2b6ad3f1a1a8bb44e2d930eaf759f64b3d29
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 08:29:41,686 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 08:29:41,743 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-12-02 08:29:41,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 08:29:41,748 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 08:29:41,770 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 08:29:41,771 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 08:29:41,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 08:29:41,771 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 08:29:41,771 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 08:29:41,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 08:29:41,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 08:29:41,772 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 08:29:41,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 08:29:41,772 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 08:29:41,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 08:29:41,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 08:29:41,773 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 08:29:41,773 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 08:29:41,773 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 08:29:41,773 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 08:29:41,773 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 08:29:41,773 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 08:29:41,773 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 08:29:41,773 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 08:29:41,773 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 08:29:41,773 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 08:29:41,774 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:29:41,774 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 08:29:41,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:29:41,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 08:29:41,774 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 08:29:41,774 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:29:41,774 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 08:29:41,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:29:41,774 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 08:29:41,774 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 08:29:41,774 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 08:29:41,775 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 08:29:41,775 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 08:29:41,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 08:29:41,775 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 08:29:41,775 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 08:29:41,775 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 08:29:41,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 08:29:41,775 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_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c58e2434ae79fdf5f8dceab88ea2b6ad3f1a1a8bb44e2d930eaf759f64b3d29
[2024-12-02 08:29:42,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 08:29:42,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 08:29:42,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 08:29:42,029 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 08:29:42,030 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 08:29:42,031 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i
[2024-12-02 08:29:44,679 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/data/7ec44328c/9cf768a6c77c40198082ba05c3dcc5c9/FLAG28f82a109
[2024-12-02 08:29:45,063 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 08:29:45,064 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i
[2024-12-02 08:29:45,089 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/data/7ec44328c/9cf768a6c77c40198082ba05c3dcc5c9/FLAG28f82a109
[2024-12-02 08:29:45,104 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/data/7ec44328c/9cf768a6c77c40198082ba05c3dcc5c9
[2024-12-02 08:29:45,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 08:29:45,107 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 08:29:45,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 08:29:45,108 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 08:29:45,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 08:29:45,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:29:45" (1/1) ...
[2024-12-02 08:29:45,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cf9caed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:45, skipping insertion in model container
[2024-12-02 08:29:45,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:29:45" (1/1) ...
[2024-12-02 08:29:45,187 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 08:29:45,391 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4499,4512]
[2024-12-02 08:29:45,397 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4559,4572]
[2024-12-02 08:29:46,138 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,138 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,139 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,140 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,141 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,155 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,156 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,158 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,158 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,767 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,767 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,788 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:29:46,819 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 08:29:46,829 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4499,4512]
[2024-12-02 08:29:46,830 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4559,4572]
[2024-12-02 08:29:46,863 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,863 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,864 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,864 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,865 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,871 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,871 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,872 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,872 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8588]
[2024-12-02 08:29:46,962 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,962 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 08:29:46,975 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:29:47,139 INFO L204 MainTranslator]: Completed translation
[2024-12-02 08:29:47,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:47 WrapperNode
[2024-12-02 08:29:47,140 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 08:29:47,141 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 08:29:47,141 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 08:29:47,141 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 08:29:47,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:47" (1/1) ...
[2024-12-02 08:29:47,202 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:47" (1/1) ...
[2024-12-02 08:29:47,264 INFO L138 Inliner]: procedures = 670, calls = 2270, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 373
[2024-12-02 08:29:47,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 08:29:47,264 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 08:29:47,264 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 08:29:47,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 08:29:47,271 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:47" (1/1) ...
[2024-12-02 08:29:47,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:47" (1/1) ...
[2024-12-02 08:29:47,275 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:47" (1/1) ...
[2024-12-02 08:29:47,292 INFO L175 MemorySlicer]: Split 278 memory accesses to 4 slices as follows [2, 259, 5, 12]. 93 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5, 0]. The 260 writes are split as follows [0, 257, 0, 3].
[2024-12-02 08:29:47,293 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:47" (1/1) ...
[2024-12-02 08:29:47,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:47" (1/1) ...
[2024-12-02 08:29:47,310 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:47" (1/1) ...
[2024-12-02 08:29:47,312 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:47" (1/1) ...
[2024-12-02 08:29:47,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:47" (1/1) ...
[2024-12-02 08:29:47,319 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:47" (1/1) ...
[2024-12-02 08:29:47,322 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:47" (1/1) ...
[2024-12-02 08:29:47,328 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 08:29:47,329 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 08:29:47,329 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 08:29:47,329 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 08:29:47,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:47" (1/1) ...
[2024-12-02 08:29:47,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:29:47,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:29:47,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 08:29:47,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 08:29:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid
[2024-12-02 08:29:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid
[2024-12-02 08:29:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case
[2024-12-02 08:29:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case
[2024-12-02 08:29:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length
[2024-12-02 08:29:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length
[2024-12-02 08:29:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool
[2024-12-02 08:29:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool
[2024-12-02 08:29:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0
[2024-12-02 08:29:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1
[2024-12-02 08:29:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2
[2024-12-02 08:29:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3
[2024-12-02 08:29:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-02 08:29:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-02 08:29:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-12-02 08:29:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-12-02 08:29:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-12-02 08:29:47,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-12-02 08:29:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-12-02 08:29:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 08:29:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-12-02 08:29:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-12-02 08:29:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-12-02 08:29:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3
[2024-12-02 08:29:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 08:29:47,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 08:29:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc
[2024-12-02 08:29:47,387 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc
[2024-12-02 08:29:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-12-02 08:29:47,387 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-12-02 08:29:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-12-02 08:29:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-12-02 08:29:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-12-02 08:29:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3
[2024-12-02 08:29:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator
[2024-12-02 08:29:47,388 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator
[2024-12-02 08:29:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t
[2024-12-02 08:29:47,388 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t
[2024-12-02 08:29:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-02 08:29:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-02 08:29:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-12-02 08:29:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-12-02 08:29:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 08:29:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-12-02 08:29:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-12-02 08:29:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-12-02 08:29:47,586 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 08:29:47,588 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 08:29:54,136 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live.
[2024-12-02 08:29:54,136 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 08:29:54,145 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 08:29:54,146 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-02 08:29:54,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:29:54 BoogieIcfgContainer
[2024-12-02 08:29:54,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 08:29:54,148 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 08:29:54,148 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 08:29:54,152 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 08:29:54,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:29:45" (1/3) ...
[2024-12-02 08:29:54,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713bb031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:29:54, skipping insertion in model container
[2024-12-02 08:29:54,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:47" (2/3) ...
[2024-12-02 08:29:54,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713bb031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:29:54, skipping insertion in model container
[2024-12-02 08:29:54,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:29:54" (3/3) ...
[2024-12-02 08:29:54,155 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_eq_ignore_case_harness.i
[2024-12-02 08:29:54,168 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 08:29:54,170 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_string_eq_ignore_case_harness.i that has 10 procedures, 98 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 08:29:54,220 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 08:29:54,231 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@e18f613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 08:29:54,231 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 08:29:54,235 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 64 states have (on average 1.265625) internal successors, (81), 65 states have internal predecessors, (81), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2024-12-02 08:29:54,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2024-12-02 08:29:54,243 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:29:54,244 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:29:54,244 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:29:54,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:29:54,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1426397344, now seen corresponding path program 1 times
[2024-12-02 08:29:54,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:29:54,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751035607]
[2024-12-02 08:29:54,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:29:54,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:30:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:30:51,718 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-12-02 08:30:51,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:30:51,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751035607]
[2024-12-02 08:30:51,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751035607] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 08:30:51,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39626582]
[2024-12-02 08:30:51,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:30:51,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:30:51,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:30:51,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:30:51,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 08:31:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:31:50,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 3776 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-12-02 08:31:50,130 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:31:50,142 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-12-02 08:31:50,142 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 08:31:50,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39626582] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:31:50,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 08:31:50,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-12-02 08:31:50,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745898888]
[2024-12-02 08:31:50,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:31:50,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-02 08:31:50,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:31:50,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-02 08:31:50,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 08:31:50,166 INFO L87 Difference]: Start difference. First operand has 98 states, 64 states have (on average 1.265625) internal successors, (81), 65 states have internal predecessors, (81), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)
[2024-12-02 08:31:50,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:31:50,192 INFO L93 Difference]: Finished difference Result 191 states and 259 transitions.
[2024-12-02 08:31:50,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-02 08:31:50,194 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48
[2024-12-02 08:31:50,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:31:50,199 INFO L225 Difference]: With dead ends: 191
[2024-12-02 08:31:50,199 INFO L226 Difference]: Without dead ends: 93
[2024-12-02 08:31:50,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 08:31:50,205 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:31:50,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:31:50,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2024-12-02 08:31:50,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93.
[2024-12-02 08:31:50,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 61 states have internal predecessors, (73), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-12-02 08:31:50,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 118 transitions.
[2024-12-02 08:31:50,241 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 118 transitions. Word has length 48
[2024-12-02 08:31:50,242 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:31:50,242 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 118 transitions.
[2024-12-02 08:31:50,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)
[2024-12-02 08:31:50,242 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 118 transitions.
[2024-12-02 08:31:50,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2024-12-02 08:31:50,245 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:31:50,245 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:31:50,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 08:31:50,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:31:50,446 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:31:50,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:31:50,446 INFO L85 PathProgramCache]: Analyzing trace with hash -200506784, now seen corresponding path program 1 times
[2024-12-02 08:31:50,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:31:50,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223749849]
[2024-12-02 08:31:50,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:31:50,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:32:47,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:32:49,090 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2024-12-02 08:32:49,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:32:49,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223749849]
[2024-12-02 08:32:49,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223749849] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:32:49,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:32:49,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 08:32:49,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073576561]
[2024-12-02 08:32:49,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:32:49,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 08:32:49,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:32:49,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 08:32:49,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:32:49,093 INFO L87 Difference]: Start difference. First operand 93 states and 118 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2024-12-02 08:32:49,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:32:49,224 INFO L93 Difference]: Finished difference Result 137 states and 179 transitions.
[2024-12-02 08:32:49,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 08:32:49,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 48
[2024-12-02 08:32:49,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:32:49,226 INFO L225 Difference]: With dead ends: 137
[2024-12-02 08:32:49,226 INFO L226 Difference]: Without dead ends: 93
[2024-12-02 08:32:49,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:32:49,228 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 10 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 08:32:49,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 339 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 08:32:49,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2024-12-02 08:32:49,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93.
[2024-12-02 08:32:49,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 60 states have (on average 1.2) internal successors, (72), 61 states have internal predecessors, (72), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-12-02 08:32:49,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 117 transitions.
[2024-12-02 08:32:49,240 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 117 transitions. Word has length 48
[2024-12-02 08:32:49,241 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:32:49,241 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 117 transitions.
[2024-12-02 08:32:49,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2024-12-02 08:32:49,241 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 117 transitions.
[2024-12-02 08:32:49,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2024-12-02 08:32:49,243 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:32:49,244 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 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]
[2024-12-02 08:32:49,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 08:32:49,244 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:32:49,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:32:49,245 INFO L85 PathProgramCache]: Analyzing trace with hash 551045566, now seen corresponding path program 1 times
[2024-12-02 08:32:49,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:32:49,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211962246]
[2024-12-02 08:32:49,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:32:49,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:33:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:33:50,444 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2024-12-02 08:33:50,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:33:50,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211962246]
[2024-12-02 08:33:50,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211962246] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:33:50,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:33:50,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-12-02 08:33:50,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649884908]
[2024-12-02 08:33:50,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:33:50,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-12-02 08:33:50,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:33:50,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-12-02 08:33:50,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110
[2024-12-02 08:33:50,447 INFO L87 Difference]: Start difference. First operand 93 states and 117 transitions. Second operand has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 9 states have internal predecessors, (42), 4 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12)
[2024-12-02 08:33:51,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:33:51,235 INFO L93 Difference]: Finished difference Result 140 states and 178 transitions.
[2024-12-02 08:33:51,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-12-02 08:33:51,236 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 9 states have internal predecessors, (42), 4 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 82
[2024-12-02 08:33:51,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:33:51,237 INFO L225 Difference]: With dead ends: 140
[2024-12-02 08:33:51,237 INFO L226 Difference]: Without dead ends: 93
[2024-12-02 08:33:51,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132
[2024-12-02 08:33:51,238 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 20 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-12-02 08:33:51,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 1013 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-12-02 08:33:51,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2024-12-02 08:33:51,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93.
[2024-12-02 08:33:51,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 60 states have (on average 1.1833333333333333) internal successors, (71), 61 states have internal predecessors, (71), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-12-02 08:33:51,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 116 transitions.
[2024-12-02 08:33:51,248 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 116 transitions. Word has length 82
[2024-12-02 08:33:51,248 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:33:51,248 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 116 transitions.
[2024-12-02 08:33:51,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 9 states have internal predecessors, (42), 4 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12)
[2024-12-02 08:33:51,248 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 116 transitions.
[2024-12-02 08:33:51,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2024-12-02 08:33:51,251 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:33:51,251 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:33:51,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 08:33:51,252 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:33:51,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:33:51,252 INFO L85 PathProgramCache]: Analyzing trace with hash 164624321, now seen corresponding path program 1 times
[2024-12-02 08:33:51,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:33:51,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519538060]
[2024-12-02 08:33:51,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:33:51,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:34:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:34:50,370 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked.
[2024-12-02 08:34:50,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:34:50,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519538060]
[2024-12-02 08:34:50,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519538060] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:34:50,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:34:50,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2024-12-02 08:34:50,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672168919]
[2024-12-02 08:34:50,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:34:50,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-12-02 08:34:50,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:34:50,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-12-02 08:34:50,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156
[2024-12-02 08:34:50,372 INFO L87 Difference]: Start difference. First operand 93 states and 116 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 11 states have internal predecessors, (43), 6 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13)
[2024-12-02 08:34:51,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:34:51,922 INFO L93 Difference]: Finished difference Result 123 states and 154 transitions.
[2024-12-02 08:34:51,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-12-02 08:34:51,923 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 11 states have internal predecessors, (43), 6 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) Word has length 91
[2024-12-02 08:34:51,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:34:51,925 INFO L225 Difference]: With dead ends: 123
[2024-12-02 08:34:51,925 INFO L226 Difference]: Without dead ends: 101
[2024-12-02 08:34:51,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240
[2024-12-02 08:34:51,926 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 40 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-12-02 08:34:51,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 1153 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-12-02 08:34:51,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2024-12-02 08:34:51,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96.
[2024-12-02 08:34:51,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 63 states have internal predecessors, (73), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2024-12-02 08:34:51,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 120 transitions.
[2024-12-02 08:34:51,938 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 120 transitions. Word has length 91
[2024-12-02 08:34:51,938 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:34:51,938 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 120 transitions.
[2024-12-02 08:34:51,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 11 states have internal predecessors, (43), 6 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13)
[2024-12-02 08:34:51,939 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 120 transitions.
[2024-12-02 08:34:51,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93
[2024-12-02 08:34:51,940 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:34:51,941 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:34:51,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 08:34:51,941 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:34:51,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:34:51,941 INFO L85 PathProgramCache]: Analyzing trace with hash 21122557, now seen corresponding path program 1 times
[2024-12-02 08:34:51,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:34:51,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332591814]
[2024-12-02 08:34:51,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:34:51,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:35:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:35:51,746 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked.
[2024-12-02 08:35:51,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:35:51,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332591814]
[2024-12-02 08:35:51,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332591814] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:35:51,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:35:51,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2024-12-02 08:35:51,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378040865]
[2024-12-02 08:35:51,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:35:51,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-12-02 08:35:51,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:35:51,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-12-02 08:35:51,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132
[2024-12-02 08:35:51,748 INFO L87 Difference]: Start difference. First operand 96 states and 120 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 5 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13)
[2024-12-02 08:35:52,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:35:52,999 INFO L93 Difference]: Finished difference Result 119 states and 147 transitions.
[2024-12-02 08:35:52,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 08:35:52,999 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 5 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) Word has length 92
[2024-12-02 08:35:53,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:35:53,001 INFO L225 Difference]: With dead ends: 119
[2024-12-02 08:35:53,001 INFO L226 Difference]: Without dead ends: 97
[2024-12-02 08:35:53,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182
[2024-12-02 08:35:53,002 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 25 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:35:53,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 1071 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-12-02 08:35:53,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states.
[2024-12-02 08:35:53,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96.
[2024-12-02 08:35:53,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 62 states have (on average 1.1612903225806452) internal successors, (72), 63 states have internal predecessors, (72), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2024-12-02 08:35:53,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 119 transitions.
[2024-12-02 08:35:53,008 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 119 transitions. Word has length 92
[2024-12-02 08:35:53,008 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:35:53,008 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 119 transitions.
[2024-12-02 08:35:53,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 5 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13)
[2024-12-02 08:35:53,009 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 119 transitions.
[2024-12-02 08:35:53,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101
[2024-12-02 08:35:53,009 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:35:53,010 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 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]
[2024-12-02 08:35:53,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 08:35:53,010 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:35:53,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:35:53,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1947342738, now seen corresponding path program 1 times
[2024-12-02 08:35:53,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:35:53,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243433107]
[2024-12-02 08:35:53,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:35:53,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:37:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:38:59,002 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-12-02 08:39:29,427 WARN L286 SmtUtils]: Spent 28.89s on a formula simplification. DAG size of input: 167 DAG size of output: 35 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-12-02 08:40:40,210 WARN L286 SmtUtils]: Spent 24.38s on a formula simplification. DAG size of input: 61 DAG size of output: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-12-02 08:40:44,667 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2024-12-02 08:40:44,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:40:44,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243433107]
[2024-12-02 08:40:44,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243433107] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 08:40:44,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937701789]
[2024-12-02 08:40:44,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:40:44,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:40:44,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:40:44,670 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:40:44,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc617780-2b61-485a-a3e4-7131ba26e819/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 08:43:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:43:18,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 3985 conjuncts, 115 conjuncts are in the unsatisfiable core
[2024-12-02 08:43:18,985 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:43:20,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 56 treesize of output 43
[2024-12-02 08:43:20,512 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 08:43:20,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16
[2024-12-02 08:43:20,609 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 8 treesize of output 7
[2024-12-02 08:43:20,691 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size
[2024-12-02 08:43:20,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 16