./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.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_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/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_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/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_93c99704-4766-4dfb-a0da-39c461a3f02e/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 885bac69872c2b34c2b244d1618f4ab60115ba2f5fec2456cdf32ad6a7277fb1
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-01 23:03:16,261 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-01 23:03:16,316 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-12-01 23:03:16,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-01 23:03:16,321 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-01 23:03:16,341 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-01 23:03:16,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-01 23:03:16,341 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-01 23:03:16,342 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-01 23:03:16,342 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-01 23:03:16,342 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-01 23:03:16,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-01 23:03:16,342 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-01 23:03:16,342 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-01 23:03:16,343 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-01 23:03:16,343 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-01 23:03:16,343 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-01 23:03:16,343 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-01 23:03:16,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-01 23:03:16,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-01 23:03:16,343 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-01 23:03:16,343 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-01 23:03:16,343 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-01 23:03:16,343 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-01 23:03:16,343 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-01 23:03:16,344 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-01 23:03:16,344 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-01 23:03:16,344 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-01 23:03:16,344 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-01 23:03:16,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 23:03:16,344 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-01 23:03:16,344 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-01 23:03:16,344 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-01 23:03:16,344 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-01 23:03:16,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 23:03:16,344 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-01 23:03:16,344 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-01 23:03:16,345 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-01 23:03:16,345 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-01 23:03:16,345 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-01 23:03:16,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-01 23:03:16,345 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-01 23:03:16,345 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-01 23:03:16,345 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-01 23:03:16,345 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-01 23:03:16,345 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_93c99704-4766-4dfb-a0da-39c461a3f02e/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 -> 885bac69872c2b34c2b244d1618f4ab60115ba2f5fec2456cdf32ad6a7277fb1
[2024-12-01 23:03:16,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-01 23:03:16,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-01 23:03:16,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-01 23:03:16,591 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-01 23:03:16,591 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-01 23:03:16,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i
[2024-12-01 23:03:19,181 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/data/65486b5cd/b837baa9951346debe1e011198e8bc5f/FLAG20949222f
[2024-12-01 23:03:19,577 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-01 23:03:19,577 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i
[2024-12-01 23:03:19,605 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/data/65486b5cd/b837baa9951346debe1e011198e8bc5f/FLAG20949222f
[2024-12-01 23:03:19,746 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/data/65486b5cd/b837baa9951346debe1e011198e8bc5f
[2024-12-01 23:03:19,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-01 23:03:19,750 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-01 23:03:19,751 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-01 23:03:19,751 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-01 23:03:19,754 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-01 23:03:19,754 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:03:19" (1/1) ...
[2024-12-01 23:03:19,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@124a0dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:19, skipping insertion in model container
[2024-12-01 23:03:19,755 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:03:19" (1/1) ...
[2024-12-01 23:03:19,820 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-01 23:03:20,038 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_93c99704-4766-4dfb-a0da-39c461a3f02e/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i[4495,4508]
[2024-12-01 23:03:20,044 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_93c99704-4766-4dfb-a0da-39c461a3f02e/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i[4555,4568]
[2024-12-01 23:03:20,745 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:20,745 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:20,746 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:20,746 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:20,747 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:20,761 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:20,762 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:20,764 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:20,765 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:21,347 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:21,347 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:21,407 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-01 23:03:21,454 INFO L200 MainTranslator]: Completed pre-run
[2024-12-01 23:03:21,467 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_93c99704-4766-4dfb-a0da-39c461a3f02e/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i[4495,4508]
[2024-12-01 23:03:21,467 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_93c99704-4766-4dfb-a0da-39c461a3f02e/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i[4555,4568]
[2024-12-01 23:03:21,506 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:21,506 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:21,506 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:21,506 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:21,507 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:21,513 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:21,513 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:21,514 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:21,515 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:21,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245]
[2024-12-01 23:03:21,634 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:21,634 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-01 23:03:21,650 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__(""
:
: "r"(pBuf)
: "memory"); [8731-8742]
[2024-12-01 23:03:21,663 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-01 23:03:21,890 INFO L204 MainTranslator]: Completed translation
[2024-12-01 23:03:21,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:21 WrapperNode
[2024-12-01 23:03:21,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-01 23:03:21,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-01 23:03:21,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-01 23:03:21,892 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-01 23:03:21,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:21" (1/1) ...
[2024-12-01 23:03:21,951 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:21" (1/1) ...
[2024-12-01 23:03:22,006 INFO L138 Inliner]: procedures = 680, calls = 2633, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 902
[2024-12-01 23:03:22,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-01 23:03:22,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-01 23:03:22,007 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-01 23:03:22,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-01 23:03:22,018 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:21" (1/1) ...
[2024-12-01 23:03:22,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:21" (1/1) ...
[2024-12-01 23:03:22,024 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:21" (1/1) ...
[2024-12-01 23:03:22,080 INFO L175 MemorySlicer]: Split 556 memory accesses to 6 slices as follows [2, 257, 238, 6, 40, 13]. 46 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 0, 6, 0, 8, 5]. The 493 writes are split as follows [0, 257, 232, 2, 2, 0].
[2024-12-01 23:03:22,081 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:21" (1/1) ...
[2024-12-01 23:03:22,081 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:21" (1/1) ...
[2024-12-01 23:03:22,107 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:21" (1/1) ...
[2024-12-01 23:03:22,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:21" (1/1) ...
[2024-12-01 23:03:22,113 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:21" (1/1) ...
[2024-12-01 23:03:22,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:21" (1/1) ...
[2024-12-01 23:03:22,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:21" (1/1) ...
[2024-12-01 23:03:22,132 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-01 23:03:22,133 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-01 23:03:22,133 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-01 23:03:22,133 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-01 23:03:22,134 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:21" (1/1) ...
[2024-12-01 23:03:22,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 23:03:22,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 23:03:22,163 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-01 23:03:22,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-01 23:03:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str
[2024-12-01 23:03:22,185 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str
[2024-12-01 23:03:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid
[2024-12-01 23:03:22,185 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid
[2024-12-01 23:03:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-01 23:03:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool
[2024-12-01 23:03:22,185 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool
[2024-12-01 23:03:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0
[2024-12-01 23:03:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1
[2024-12-01 23:03:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2
[2024-12-01 23:03:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3
[2024-12-01 23:03:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4
[2024-12-01 23:03:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5
[2024-12-01 23:03:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-01 23:03:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-01 23:03:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-12-01 23:03:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-12-01 23:03:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4
[2024-12-01 23:03:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5
[2024-12-01 23:03:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-12-01 23:03:22,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-12-01 23:03:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-12-01 23:03:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-01 23:03:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array
[2024-12-01 23:03:22,186 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array
[2024-12-01 23:03:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-12-01 23:03:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-12-01 23:03:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-12-01 23:03:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3
[2024-12-01 23:03:22,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4
[2024-12-01 23:03:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5
[2024-12-01 23:03:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-01 23:03:22,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-01 23:03:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc
[2024-12-01 23:03:22,187 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc
[2024-12-01 23:03:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches
[2024-12-01 23:03:22,187 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches
[2024-12-01 23:03:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0
[2024-12-01 23:03:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1
[2024-12-01 23:03:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2
[2024-12-01 23:03:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3
[2024-12-01 23:03:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4
[2024-12-01 23:03:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5
[2024-12-01 23:03:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-12-01 23:03:22,187 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-12-01 23:03:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-12-01 23:03:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-12-01 23:03:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-12-01 23:03:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-12-01 23:03:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3
[2024-12-01 23:03:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4
[2024-12-01 23:03:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5
[2024-12-01 23:03:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-12-01 23:03:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-12-01 23:03:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-12-01 23:03:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3
[2024-12-01 23:03:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4
[2024-12-01 23:03:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5
[2024-12-01 23:03:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator
[2024-12-01 23:03:22,188 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator
[2024-12-01 23:03:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t
[2024-12-01 23:03:22,188 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t
[2024-12-01 23:03:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-01 23:03:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-01 23:03:22,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-12-01 23:03:22,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-12-01 23:03:22,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4
[2024-12-01 23:03:22,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5
[2024-12-01 23:03:22,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-01 23:03:22,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-12-01 23:03:22,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-12-01 23:03:22,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-12-01 23:03:22,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4
[2024-12-01 23:03:22,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5
[2024-12-01 23:03:22,438 INFO L234 CfgBuilder]: Building ICFG
[2024-12-01 23:03:22,440 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-01 23:03:30,199 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live.
[2024-12-01 23:03:30,199 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-01 23:03:30,212 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-01 23:03:30,212 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-01 23:03:30,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:03:30 BoogieIcfgContainer
[2024-12-01 23:03:30,213 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-01 23:03:30,215 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-01 23:03:30,216 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-01 23:03:30,220 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-01 23:03:30,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:03:19" (1/3) ...
[2024-12-01 23:03:30,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f24961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:03:30, skipping insertion in model container
[2024-12-01 23:03:30,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:21" (2/3) ...
[2024-12-01 23:03:30,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f24961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:03:30, skipping insertion in model container
[2024-12-01 23:03:30,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:03:30" (3/3) ...
[2024-12-01 23:03:30,223 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness_negated.i
[2024-12-01 23:03:30,238 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-01 23:03:30,240 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_c_str_harness_negated.i that has 11 procedures, 140 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-01 23:03:30,295 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-01 23:03:30,306 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;@734b8e11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-01 23:03:30,306 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-01 23:03:30,310 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 92 states have (on average 1.25) internal successors, (115), 94 states have internal predecessors, (115), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2024-12-01 23:03:30,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-12-01 23:03:30,320 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 23:03:30,322 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 23:03:30,322 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:03:30,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:03:30,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1835431672, now seen corresponding path program 1 times
[2024-12-01 23:03:30,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:03:30,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745706272]
[2024-12-01 23:03:30,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:03:30,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:04:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:04:52,362 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked.
[2024-12-01 23:04:52,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:04:52,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745706272]
[2024-12-01 23:04:52,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745706272] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-01 23:04:52,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353912204]
[2024-12-01 23:04:52,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:04:52,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 23:04:52,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 23:04:52,365 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 23:04:52,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-01 23:06:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:06:15,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 7802 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-12-01 23:06:15,970 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 23:06:15,989 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked.
[2024-12-01 23:06:15,989 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-01 23:06:15,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353912204] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 23:06:15,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-01 23:06:15,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-12-01 23:06:15,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413391203]
[2024-12-01 23:06:15,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 23:06:15,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-01 23:06:15,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:06:16,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-01 23:06:16,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-01 23:06:16,016 INFO L87 Difference]: Start difference. First operand has 140 states, 92 states have (on average 1.25) internal successors, (115), 94 states have internal predecessors, (115), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)
[2024-12-01 23:06:16,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:06:16,049 INFO L93 Difference]: Finished difference Result 275 states and 395 transitions.
[2024-12-01 23:06:16,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-01 23:06:16,051 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 125
[2024-12-01 23:06:16,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:06:16,059 INFO L225 Difference]: With dead ends: 275
[2024-12-01 23:06:16,059 INFO L226 Difference]: Without dead ends: 135
[2024-12-01 23:06:16,063 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-01 23:06:16,065 INFO L435 NwaCegarLoop]: 184 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, 184 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
[2024-12-01 23:06:16,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-01 23:06:16,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states.
[2024-12-01 23:06:16,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135.
[2024-12-01 23:06:16,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 88 states have (on average 1.2159090909090908) internal successors, (107), 89 states have internal predecessors, (107), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2024-12-01 23:06:16,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 178 transitions.
[2024-12-01 23:06:16,108 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 178 transitions. Word has length 125
[2024-12-01 23:06:16,109 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:06:16,109 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 178 transitions.
[2024-12-01 23:06:16,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)
[2024-12-01 23:06:16,109 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 178 transitions.
[2024-12-01 23:06:16,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-12-01 23:06:16,112 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 23:06:16,112 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 23:06:16,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-01 23:06:16,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 23:06:16,313 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:06:16,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:06:16,314 INFO L85 PathProgramCache]: Analyzing trace with hash 987300848, now seen corresponding path program 1 times
[2024-12-01 23:06:16,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:06:16,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344851315]
[2024-12-01 23:06:16,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:06:16,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:07:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:07:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked.
[2024-12-01 23:07:41,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:07:41,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344851315]
[2024-12-01 23:07:41,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344851315] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-01 23:07:41,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506232292]
[2024-12-01 23:07:41,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:07:41,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 23:07:41,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 23:07:41,337 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 23:07:41,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-01 23:09:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:09:06,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 7802 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-12-01 23:09:06,949 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 23:09:07,668 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked.
[2024-12-01 23:09:07,668 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-01 23:09:07,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506232292] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 23:09:07,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-01 23:09:07,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9
[2024-12-01 23:09:07,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133472447]
[2024-12-01 23:09:07,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 23:09:07,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-01 23:09:07,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:09:07,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-01 23:09:07,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-12-01 23:09:07,671 INFO L87 Difference]: Start difference. First operand 135 states and 178 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19)
[2024-12-01 23:09:08,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:09:08,712 INFO L93 Difference]: Finished difference Result 240 states and 321 transitions.
[2024-12-01 23:09:08,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-01 23:09:08,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 125
[2024-12-01 23:09:08,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:09:08,715 INFO L225 Difference]: With dead ends: 240
[2024-12-01 23:09:08,715 INFO L226 Difference]: Without dead ends: 138
[2024-12-01 23:09:08,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132
[2024-12-01 23:09:08,716 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 181 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-12-01 23:09:08,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 364 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-12-01 23:09:08,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states.
[2024-12-01 23:09:08,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138.
[2024-12-01 23:09:08,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 90 states have (on average 1.211111111111111) internal successors, (109), 92 states have internal predecessors, (109), 36 states have call successors, (36), 10 states have call predecessors, (36), 11 states have return successors, (37), 35 states have call predecessors, (37), 35 states have call successors, (37)
[2024-12-01 23:09:08,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 182 transitions.
[2024-12-01 23:09:08,726 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 182 transitions. Word has length 125
[2024-12-01 23:09:08,726 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:09:08,726 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 182 transitions.
[2024-12-01 23:09:08,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19)
[2024-12-01 23:09:08,727 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 182 transitions.
[2024-12-01 23:09:08,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-12-01 23:09:08,728 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 23:09:08,728 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 23:09:08,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-12-01 23:09:08,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 23:09:08,929 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:09:08,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:09:08,929 INFO L85 PathProgramCache]: Analyzing trace with hash -154164069, now seen corresponding path program 1 times
[2024-12-01 23:09:08,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:09:08,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281058467]
[2024-12-01 23:09:08,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:09:08,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:10:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:10:38,880 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked.
[2024-12-01 23:10:38,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:10:38,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281058467]
[2024-12-01 23:10:38,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281058467] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-01 23:10:38,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231297137]
[2024-12-01 23:10:38,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:10:38,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 23:10:38,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 23:10:38,883 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 23:10:38,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-01 23:12:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:12:05,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 7819 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-01 23:12:05,916 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 23:12:06,974 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked.
[2024-12-01 23:12:06,975 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-01 23:12:06,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231297137] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 23:12:06,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-01 23:12:06,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14
[2024-12-01 23:12:06,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172942960]
[2024-12-01 23:12:06,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 23:12:06,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-01 23:12:06,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:12:06,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-01 23:12:06,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182
[2024-12-01 23:12:06,976 INFO L87 Difference]: Start difference. First operand 138 states and 182 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19)
[2024-12-01 23:12:08,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:12:08,379 INFO L93 Difference]: Finished difference Result 229 states and 303 transitions.
[2024-12-01 23:12:08,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-01 23:12:08,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 131
[2024-12-01 23:12:08,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:12:08,382 INFO L225 Difference]: With dead ends: 229
[2024-12-01 23:12:08,382 INFO L226 Difference]: Without dead ends: 135
[2024-12-01 23:12:08,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306
[2024-12-01 23:12:08,383 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 183 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-12-01 23:12:08,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 492 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-12-01 23:12:08,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states.
[2024-12-01 23:12:08,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135.
[2024-12-01 23:12:08,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 88 states have (on average 1.2045454545454546) internal successors, (106), 89 states have internal predecessors, (106), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2024-12-01 23:12:08,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 177 transitions.
[2024-12-01 23:12:08,392 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 177 transitions. Word has length 131
[2024-12-01 23:12:08,392 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:12:08,392 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 177 transitions.
[2024-12-01 23:12:08,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19)
[2024-12-01 23:12:08,392 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 177 transitions.
[2024-12-01 23:12:08,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2024-12-01 23:12:08,393 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 23:12:08,394 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 23:12:08,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-12-01 23:12:08,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 23:12:08,594 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:12:08,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:12:08,594 INFO L85 PathProgramCache]: Analyzing trace with hash -591260751, now seen corresponding path program 1 times
[2024-12-01 23:12:08,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:12:08,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970987521]
[2024-12-01 23:12:08,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:12:08,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:13:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:13:45,927 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked.
[2024-12-01 23:13:45,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:13:45,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970987521]
[2024-12-01 23:13:45,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970987521] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-01 23:13:45,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835332415]
[2024-12-01 23:13:45,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:13:45,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 23:13:45,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 23:13:45,931 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 23:13:45,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-01 23:15:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:15:11,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 7853 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-12-01 23:15:11,229 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 23:15:11,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1
[2024-12-01 23:15:13,179 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked.
[2024-12-01 23:15:13,179 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-01 23:15:13,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835332415] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 23:15:13,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-01 23:15:13,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 19
[2024-12-01 23:15:13,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880035409]
[2024-12-01 23:15:13,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 23:15:13,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-12-01 23:15:13,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:15:13,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-12-01 23:15:13,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342
[2024-12-01 23:15:13,181 INFO L87 Difference]: Start difference. First operand 135 states and 177 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19)
[2024-12-01 23:15:17,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-12-01 23:15:21,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-12-01 23:15:24,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:15:24,668 INFO L93 Difference]: Finished difference Result 254 states and 334 transitions.
[2024-12-01 23:15:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-12-01 23:15:24,669 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 143
[2024-12-01 23:15:24,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:15:24,671 INFO L225 Difference]: With dead ends: 254
[2024-12-01 23:15:24,672 INFO L226 Difference]: Without dead ends: 152
[2024-12-01 23:15:24,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462
[2024-12-01 23:15:24,673 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 124 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 18 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time
[2024-12-01 23:15:24,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 783 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 390 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time]
[2024-12-01 23:15:24,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states.
[2024-12-01 23:15:24,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 146.
[2024-12-01 23:15:24,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 96 states have (on average 1.1875) internal successors, (114), 98 states have internal predecessors, (114), 36 states have call successors, (36), 12 states have call predecessors, (36), 13 states have return successors, (37), 35 states have call predecessors, (37), 35 states have call successors, (37)
[2024-12-01 23:15:24,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 187 transitions.
[2024-12-01 23:15:24,691 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 187 transitions. Word has length 143
[2024-12-01 23:15:24,691 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:15:24,691 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 187 transitions.
[2024-12-01 23:15:24,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19)
[2024-12-01 23:15:24,692 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 187 transitions.
[2024-12-01 23:15:24,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2024-12-01 23:15:24,693 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 23:15:24,694 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 23:15:24,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-12-01 23:15:24,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 23:15:24,894 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:15:24,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:15:24,895 INFO L85 PathProgramCache]: Analyzing trace with hash 874487225, now seen corresponding path program 1 times
[2024-12-01 23:15:24,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:15:24,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039054321]
[2024-12-01 23:15:24,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:15:24,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:16:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:16:54,549 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked.
[2024-12-01 23:16:54,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:16:54,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039054321]
[2024-12-01 23:16:54,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039054321] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-01 23:16:54,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262452441]
[2024-12-01 23:16:54,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:16:54,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 23:16:54,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 23:16:54,552 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 23:16:54,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93c99704-4766-4dfb-a0da-39c461a3f02e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process