./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/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_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 58b944d221faff3c6824998b05c9a224fa74d600c63469e9d7cd97b7a5527588
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 10:37:09,235 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 10:37:09,292 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-12-02 10:37:09,297 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 10:37:09,297 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 10:37:09,318 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 10:37:09,318 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 10:37:09,318 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 10:37:09,319 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 10:37:09,319 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 10:37:09,319 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 10:37:09,319 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 10:37:09,319 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 10:37:09,319 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 10:37:09,320 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 10:37:09,320 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 10:37:09,320 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 10:37:09,320 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 10:37:09,320 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 10:37:09,320 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 10:37:09,320 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 10:37:09,320 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 10:37:09,320 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 10:37:09,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 10:37:09,320 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 10:37:09,320 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 10:37:09,320 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 10:37:09,321 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 10:37:09,321 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 10:37:09,321 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 10:37:09,321 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 10:37:09,321 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 10:37:09,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 10:37:09,321 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 10:37:09,321 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 10:37:09,321 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 10:37:09,321 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 10:37:09,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 10:37:09,322 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 10:37:09,322 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 10:37:09,322 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 10:37:09,322 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 10:37:09,322 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 10:37:09,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 10:37:09,322 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 10:37:09,322 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 10:37:09,322 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 10:37:09,322 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 10:37:09,322 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_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58b944d221faff3c6824998b05c9a224fa74d600c63469e9d7cd97b7a5527588
[2024-12-02 10:37:09,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 10:37:09,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 10:37:09,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 10:37:09,571 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 10:37:09,571 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 10:37:09,572 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c
[2024-12-02 10:37:12,337 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/data/9b896e128/766cf11c23e44eccad5731646de93438/FLAGfaa6a5254
[2024-12-02 10:37:12,547 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 10:37:12,548 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c
[2024-12-02 10:37:12,554 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/data/9b896e128/766cf11c23e44eccad5731646de93438/FLAGfaa6a5254
[2024-12-02 10:37:12,886 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/data/9b896e128/766cf11c23e44eccad5731646de93438
[2024-12-02 10:37:12,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 10:37:12,889 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 10:37:12,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 10:37:12,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 10:37:12,893 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 10:37:12,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:37:12" (1/1) ...
[2024-12-02 10:37:12,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62cdc87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:12, skipping insertion in model container
[2024-12-02 10:37:12,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:37:12" (1/1) ...
[2024-12-02 10:37:12,912 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 10:37:13,026 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_7c689b75-d2c3-46eb-8670-2e9e97a33e00/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c[1995,2008]
[2024-12-02 10:37:13,030 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_7c689b75-d2c3-46eb-8670-2e9e97a33e00/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c[2364,2377]
[2024-12-02 10:37:13,068 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 10:37:13,075 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 10:37:13,085 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_7c689b75-d2c3-46eb-8670-2e9e97a33e00/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c[1995,2008]
[2024-12-02 10:37:13,087 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_7c689b75-d2c3-46eb-8670-2e9e97a33e00/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c[2364,2377]
[2024-12-02 10:37:13,111 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 10:37:13,122 INFO L204 MainTranslator]: Completed translation
[2024-12-02 10:37:13,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:13 WrapperNode
[2024-12-02 10:37:13,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 10:37:13,124 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 10:37:13,124 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 10:37:13,124 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 10:37:13,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:13" (1/1) ...
[2024-12-02 10:37:13,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:13" (1/1) ...
[2024-12-02 10:37:13,153 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168
[2024-12-02 10:37:13,154 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 10:37:13,155 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 10:37:13,155 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 10:37:13,155 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 10:37:13,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:13" (1/1) ...
[2024-12-02 10:37:13,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:13" (1/1) ...
[2024-12-02 10:37:13,163 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:13" (1/1) ...
[2024-12-02 10:37:13,176 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-12-02 10:37:13,176 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:13" (1/1) ...
[2024-12-02 10:37:13,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:13" (1/1) ...
[2024-12-02 10:37:13,181 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:13" (1/1) ...
[2024-12-02 10:37:13,183 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:13" (1/1) ...
[2024-12-02 10:37:13,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:13" (1/1) ...
[2024-12-02 10:37:13,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:13" (1/1) ...
[2024-12-02 10:37:13,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:13" (1/1) ...
[2024-12-02 10:37:13,192 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 10:37:13,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 10:37:13,193 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 10:37:13,193 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 10:37:13,194 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:13" (1/1) ...
[2024-12-02 10:37:13,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 10:37:13,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:37:13,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 10:37:13,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 10:37:13,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 10:37:13,241 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt
[2024-12-02 10:37:13,241 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt
[2024-12-02 10:37:13,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 10:37:13,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 10:37:13,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 10:37:13,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-12-02 10:37:13,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-12-02 10:37:13,300 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 10:37:13,301 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 10:37:13,600 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live.
[2024-12-02 10:37:13,601 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 10:37:13,611 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 10:37:13,611 INFO L312 CfgBuilder]: Removed 4 assume(true) statements.
[2024-12-02 10:37:13,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:37:13 BoogieIcfgContainer
[2024-12-02 10:37:13,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 10:37:13,614 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 10:37:13,614 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 10:37:13,619 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 10:37:13,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:37:12" (1/3) ...
[2024-12-02 10:37:13,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53f749be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:37:13, skipping insertion in model container
[2024-12-02 10:37:13,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:13" (2/3) ...
[2024-12-02 10:37:13,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53f749be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:37:13, skipping insertion in model container
[2024-12-02 10:37:13,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:37:13" (3/3) ...
[2024-12-02 10:37:13,621 INFO L128 eAbstractionObserver]: Analyzing ICFG square_8+soft_float_2a.c.cil.c
[2024-12-02 10:37:13,636 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 10:37:13,637 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_8+soft_float_2a.c.cil.c that has 3 procedures, 82 locations, 1 initial locations, 2 loop locations, and 2 error locations.
[2024-12-02 10:37:13,680 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 10:37:13,690 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;@6593f6bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 10:37:13,690 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-12-02 10:37:13,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 72 states have (on average 1.5555555555555556) internal successors, (112), 75 states have internal predecessors, (112), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-12-02 10:37:13,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-12-02 10:37:13,697 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:37:13,698 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:37:13,698 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:37:13,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:37:13,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1530844763, now seen corresponding path program 1 times
[2024-12-02 10:37:13,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:37:13,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429725239]
[2024-12-02 10:37:13,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:37:13,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:37:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:37:13,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 10:37:13,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 10:37:13,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429725239]
[2024-12-02 10:37:13,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429725239] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:37:13,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:37:13,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 10:37:13,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624018976]
[2024-12-02 10:37:13,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:37:13,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-02 10:37:13,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 10:37:13,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-02 10:37:13,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 10:37:13,838 INFO L87 Difference]: Start difference. First operand has 82 states, 72 states have (on average 1.5555555555555556) internal successors, (112), 75 states have internal predecessors, (112), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 10:37:13,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:37:13,858 INFO L93 Difference]: Finished difference Result 159 states and 241 transitions.
[2024-12-02 10:37:13,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-02 10:37:13,860 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-12-02 10:37:13,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:37:13,866 INFO L225 Difference]: With dead ends: 159
[2024-12-02 10:37:13,866 INFO L226 Difference]: Without dead ends: 73
[2024-12-02 10:37:13,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 10:37:13,870 INFO L435 NwaCegarLoop]: 113 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, 113 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 10:37:13,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 10:37:13,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states.
[2024-12-02 10:37:13,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73.
[2024-12-02 10:37:13,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 65 states have (on average 1.4307692307692308) internal successors, (93), 66 states have internal predecessors, (93), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-02 10:37:13,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions.
[2024-12-02 10:37:13,905 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 7
[2024-12-02 10:37:13,905 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:37:13,905 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions.
[2024-12-02 10:37:13,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 10:37:13,906 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions.
[2024-12-02 10:37:13,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-12-02 10:37:13,906 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:37:13,906 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:37:13,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 10:37:13,906 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:37:13,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:37:13,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1530904345, now seen corresponding path program 1 times
[2024-12-02 10:37:13,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:37:13,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555175805]
[2024-12-02 10:37:13,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:37:13,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:37:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 10:37:13,922 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 10:37:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 10:37:13,940 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 10:37:13,940 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 10:37:13,941 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2024-12-02 10:37:13,942 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-12-02 10:37:13,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 10:37:13,945 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-12-02 10:37:13,952 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 10:37:13,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:37:13 BoogieIcfgContainer
[2024-12-02 10:37:13,954 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 10:37:13,955 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 10:37:13,955 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 10:37:13,955 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 10:37:13,956 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:37:13" (3/4) ...
[2024-12-02 10:37:13,958 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-12-02 10:37:13,958 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 10:37:13,959 INFO L158 Benchmark]: Toolchain (without parser) took 1069.61ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 109.1MB in the end (delta: 8.8MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB.
[2024-12-02 10:37:13,959 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 10:37:13,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.03ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 103.6MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 10:37:13,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.50ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 101.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 10:37:13,960 INFO L158 Benchmark]: Boogie Preprocessor took 37.21ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 99.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 10:37:13,960 INFO L158 Benchmark]: RCFGBuilder took 418.89ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 78.8MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-12-02 10:37:13,960 INFO L158 Benchmark]: TraceAbstraction took 340.47ms. Allocated memory is still 142.6MB. Free memory was 78.3MB in the beginning and 109.7MB in the end (delta: -31.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 10:37:13,960 INFO L158 Benchmark]: Witness Printer took 3.38ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 109.1MB in the end (delta: 13.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 10:37:13,961 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 233.03ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 103.6MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 30.50ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 101.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 37.21ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 99.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 418.89ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 78.8MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* TraceAbstraction took 340.47ms. Allocated memory is still 142.6MB. Free memory was 78.3MB in the beginning and 109.7MB in the end (delta: -31.4MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 3.38ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 109.1MB in the end (delta: 13.8kB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 48]: Unable to prove that a call to reach_error is unreachable
Unable to prove that a call to reach_error is unreachable
Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45.
Possible FailurePath:
[L322] COND TRUE __VERIFIER_nondet_int()
[L323] CALL main1()
[L39] float IN = __VERIFIER_nondet_float();
[L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f)
[L34] COND FALSE !(!cond)
[L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f)
[L42] float x = IN;
[L44-L45] float result =
1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x;
[L47] COND TRUE !(result >= 0.0f && result < 1.5f)
[L48] reach_error()
- UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable
Unable to prove that a call to reach_error is unreachable
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 82 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 113 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-12-02 10:37:13,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/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_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 58b944d221faff3c6824998b05c9a224fa74d600c63469e9d7cd97b7a5527588
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 10:37:15,917 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 10:37:15,991 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-12-02 10:37:15,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 10:37:16,000 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 10:37:16,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 10:37:16,023 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 10:37:16,023 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 10:37:16,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 10:37:16,023 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 10:37:16,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 10:37:16,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 10:37:16,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 10:37:16,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 10:37:16,024 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 10:37:16,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 10:37:16,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 10:37:16,025 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 10:37:16,025 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 10:37:16,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 10:37:16,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 10:37:16,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 10:37:16,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 10:37:16,025 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 10:37:16,025 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-12-02 10:37:16,025 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-12-02 10:37:16,025 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 10:37:16,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 10:37:16,025 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 10:37:16,026 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 10:37:16,026 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 10:37:16,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 10:37:16,026 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 10:37:16,026 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 10:37:16,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 10:37:16,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 10:37:16,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 10:37:16,026 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 10:37:16,026 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 10:37:16,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 10:37:16,027 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 10:37:16,027 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 10:37:16,027 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 10:37:16,027 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 10:37:16,027 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-12-02 10:37:16,027 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-12-02 10:37:16,027 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 10:37:16,027 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 10:37:16,028 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 10:37:16,028 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 10:37:16,028 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_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58b944d221faff3c6824998b05c9a224fa74d600c63469e9d7cd97b7a5527588
[2024-12-02 10:37:16,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 10:37:16,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 10:37:16,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 10:37:16,255 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 10:37:16,256 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 10:37:16,257 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c
[2024-12-02 10:37:18,887 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/data/b78b62c2a/8d2a041d664d4873b99f6903e9570b21/FLAGa9bcf44ab
[2024-12-02 10:37:19,085 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 10:37:19,085 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c
[2024-12-02 10:37:19,094 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/data/b78b62c2a/8d2a041d664d4873b99f6903e9570b21/FLAGa9bcf44ab
[2024-12-02 10:37:19,440 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/data/b78b62c2a/8d2a041d664d4873b99f6903e9570b21
[2024-12-02 10:37:19,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 10:37:19,443 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 10:37:19,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 10:37:19,444 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 10:37:19,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 10:37:19,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:37:19" (1/1) ...
[2024-12-02 10:37:19,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b841e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:19, skipping insertion in model container
[2024-12-02 10:37:19,450 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:37:19" (1/1) ...
[2024-12-02 10:37:19,467 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 10:37:19,600 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_7c689b75-d2c3-46eb-8670-2e9e97a33e00/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c[1995,2008]
[2024-12-02 10:37:19,603 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_7c689b75-d2c3-46eb-8670-2e9e97a33e00/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c[2364,2377]
[2024-12-02 10:37:19,632 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 10:37:19,640 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 10:37:19,649 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_7c689b75-d2c3-46eb-8670-2e9e97a33e00/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c[1995,2008]
[2024-12-02 10:37:19,650 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_7c689b75-d2c3-46eb-8670-2e9e97a33e00/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c[2364,2377]
[2024-12-02 10:37:19,668 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 10:37:19,681 INFO L204 MainTranslator]: Completed translation
[2024-12-02 10:37:19,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:19 WrapperNode
[2024-12-02 10:37:19,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 10:37:19,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 10:37:19,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 10:37:19,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 10:37:19,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:19" (1/1) ...
[2024-12-02 10:37:19,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:19" (1/1) ...
[2024-12-02 10:37:19,710 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132
[2024-12-02 10:37:19,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 10:37:19,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 10:37:19,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 10:37:19,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 10:37:19,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:19" (1/1) ...
[2024-12-02 10:37:19,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:19" (1/1) ...
[2024-12-02 10:37:19,723 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:19" (1/1) ...
[2024-12-02 10:37:19,734 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-12-02 10:37:19,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:19" (1/1) ...
[2024-12-02 10:37:19,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:19" (1/1) ...
[2024-12-02 10:37:19,742 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:19" (1/1) ...
[2024-12-02 10:37:19,743 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:19" (1/1) ...
[2024-12-02 10:37:19,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:19" (1/1) ...
[2024-12-02 10:37:19,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:19" (1/1) ...
[2024-12-02 10:37:19,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:19" (1/1) ...
[2024-12-02 10:37:19,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 10:37:19,752 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 10:37:19,752 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 10:37:19,752 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 10:37:19,753 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:19" (1/1) ...
[2024-12-02 10:37:19,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 10:37:19,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:37:19,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 10:37:19,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 10:37:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 10:37:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-12-02 10:37:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt
[2024-12-02 10:37:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt
[2024-12-02 10:37:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 10:37:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 10:37:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-12-02 10:37:19,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-12-02 10:37:19,874 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 10:37:19,876 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 10:37:24,323 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live.
[2024-12-02 10:37:24,323 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 10:37:24,330 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 10:37:24,331 INFO L312 CfgBuilder]: Removed 4 assume(true) statements.
[2024-12-02 10:37:24,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:37:24 BoogieIcfgContainer
[2024-12-02 10:37:24,331 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 10:37:24,332 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 10:37:24,332 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 10:37:24,336 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 10:37:24,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:37:19" (1/3) ...
[2024-12-02 10:37:24,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524545b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:37:24, skipping insertion in model container
[2024-12-02 10:37:24,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:19" (2/3) ...
[2024-12-02 10:37:24,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524545b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:37:24, skipping insertion in model container
[2024-12-02 10:37:24,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:37:24" (3/3) ...
[2024-12-02 10:37:24,337 INFO L128 eAbstractionObserver]: Analyzing ICFG square_8+soft_float_2a.c.cil.c
[2024-12-02 10:37:24,347 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 10:37:24,348 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_8+soft_float_2a.c.cil.c that has 3 procedures, 59 locations, 1 initial locations, 2 loop locations, and 2 error locations.
[2024-12-02 10:37:24,380 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 10:37:24,388 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;@2d8b5e98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 10:37:24,388 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-12-02 10:37:24,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 49 states have (on average 1.5714285714285714) internal successors, (77), 52 states have internal predecessors, (77), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-12-02 10:37:24,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-12-02 10:37:24,394 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:37:24,395 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:37:24,395 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:37:24,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:37:24,399 INFO L85 PathProgramCache]: Analyzing trace with hash 78502818, now seen corresponding path program 1 times
[2024-12-02 10:37:24,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:37:24,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733205808]
[2024-12-02 10:37:24,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:37:24,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-12-02 10:37:24,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/mathsat
[2024-12-02 10:37:24,408 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-12-02 10:37:24,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2024-12-02 10:37:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:37:24,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-12-02 10:37:24,838 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:37:24,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 10:37:24,850 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 10:37:24,850 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:37:24,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733205808]
[2024-12-02 10:37:24,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733205808] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:37:24,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:37:24,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 10:37:24,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681267750]
[2024-12-02 10:37:24,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:37:24,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-02 10:37:24,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:37:24,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-02 10:37:24,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 10:37:24,868 INFO L87 Difference]: Start difference. First operand has 59 states, 49 states have (on average 1.5714285714285714) internal successors, (77), 52 states have internal predecessors, (77), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 10:37:24,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:37:24,883 INFO L93 Difference]: Finished difference Result 113 states and 171 transitions.
[2024-12-02 10:37:24,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-02 10:37:24,885 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-12-02 10:37:24,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:37:24,889 INFO L225 Difference]: With dead ends: 113
[2024-12-02 10:37:24,889 INFO L226 Difference]: Without dead ends: 50
[2024-12-02 10:37:24,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 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 10:37:24,894 INFO L435 NwaCegarLoop]: 80 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, 80 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 10:37:24,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 10:37:24,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2024-12-02 10:37:24,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2024-12-02 10:37:24,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-02 10:37:24,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions.
[2024-12-02 10:37:24,924 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 7
[2024-12-02 10:37:24,924 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:37:24,924 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions.
[2024-12-02 10:37:24,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 10:37:24,924 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions.
[2024-12-02 10:37:24,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-12-02 10:37:24,925 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:37:24,925 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:37:24,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2024-12-02 10:37:25,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-12-02 10:37:25,126 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:37:25,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:37:25,127 INFO L85 PathProgramCache]: Analyzing trace with hash 78562400, now seen corresponding path program 1 times
[2024-12-02 10:37:25,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:37:25,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751296860]
[2024-12-02 10:37:25,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:37:25,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-12-02 10:37:25,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/mathsat
[2024-12-02 10:37:25,129 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-12-02 10:37:25,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2024-12-02 10:38:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:38:48,399 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 10:38:48,401 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:38:57,018 WARN L286 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-12-02 10:39:05,120 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-12-02 10:39:13,308 WARN L286 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-12-02 10:39:17,379 WARN L851 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main1_~IN~0#1_5| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (fp.geq |v_ULTIMATE.start_main1_~IN~0#1_5| (_ +zero 8 24)) (fp.lt |v_ULTIMATE.start_main1_~IN~0#1_5| .cse0) (= (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |v_ULTIMATE.start_main1_~IN~0#1_5|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|)) |c_ULTIMATE.start_main1_~result~0#1|)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false
[2024-12-02 10:39:33,707 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-12-02 10:39:41,895 WARN L286 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-12-02 10:39:49,999 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-12-02 10:40:02,263 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-12-02 10:40:10,457 WARN L286 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-12-02 10:40:18,557 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-12-02 10:40:22,657 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)))) (or (exists ((|v_ULTIMATE.start_main1_~IN~0#1_5| (_ FloatingPoint 8 24))) (and (fp.geq |v_ULTIMATE.start_main1_~IN~0#1_5| (_ +zero 8 24)) (fp.lt |v_ULTIMATE.start_main1_~IN~0#1_5| .cse0) (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |v_ULTIMATE.start_main1_~IN~0#1_5|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)))))) (exists ((|v_ULTIMATE.start_main1_~IN~0#1_5| (_ FloatingPoint 8 24))) (and (fp.geq |v_ULTIMATE.start_main1_~IN~0#1_5| (_ +zero 8 24)) (fp.lt |v_ULTIMATE.start_main1_~IN~0#1_5| .cse0) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |v_ULTIMATE.start_main1_~IN~0#1_5|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|)) (_ +zero 8 24))))))) is different from false
[2024-12-02 10:40:26,697 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)))) (or (exists ((|v_ULTIMATE.start_main1_~IN~0#1_5| (_ FloatingPoint 8 24))) (and (fp.geq |v_ULTIMATE.start_main1_~IN~0#1_5| (_ +zero 8 24)) (fp.lt |v_ULTIMATE.start_main1_~IN~0#1_5| .cse0) (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |v_ULTIMATE.start_main1_~IN~0#1_5|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)))))) (exists ((|v_ULTIMATE.start_main1_~IN~0#1_5| (_ FloatingPoint 8 24))) (and (fp.geq |v_ULTIMATE.start_main1_~IN~0#1_5| (_ +zero 8 24)) (fp.lt |v_ULTIMATE.start_main1_~IN~0#1_5| .cse0) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |v_ULTIMATE.start_main1_~IN~0#1_5|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|) |v_ULTIMATE.start_main1_~IN~0#1_5|)) (_ +zero 8 24))))))) is different from true
[2024-12-02 10:40:26,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 10:40:26,698 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 10:40:26,698 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:40:26,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751296860]
[2024-12-02 10:40:26,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751296860] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:40:26,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:40:26,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 10:40:26,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765284417]
[2024-12-02 10:40:26,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:40:26,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 10:40:26,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:40:26,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 10:40:26,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=12, Unknown=3, NotChecked=14, Total=42
[2024-12-02 10:40:26,701 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 10:40:30,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-12-02 10:40:34,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-12-02 10:40:38,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-12-02 10:40:39,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:40:39,209 INFO L93 Difference]: Finished difference Result 50 states and 69 transitions.
[2024-12-02 10:40:39,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 10:40:39,210 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-12-02 10:40:39,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:40:39,210 INFO L225 Difference]: With dead ends: 50
[2024-12-02 10:40:39,211 INFO L226 Difference]: Without dead ends: 45
[2024-12-02 10:40:39,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=13, Invalid=12, Unknown=3, NotChecked=14, Total=42
[2024-12-02 10:40:39,211 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 63 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 138 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time
[2024-12-02 10:40:39,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 172 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 3 Unknown, 138 Unchecked, 12.5s Time]
[2024-12-02 10:40:39,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2024-12-02 10:40:39,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45.
[2024-12-02 10:40:39,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 38 states have internal predecessors, (55), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-02 10:40:39,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions.
[2024-12-02 10:40:39,216 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 7
[2024-12-02 10:40:39,216 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:40:39,216 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions.
[2024-12-02 10:40:39,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 10:40:39,217 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions.
[2024-12-02 10:40:39,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2024-12-02 10:40:39,218 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:40:39,218 INFO L218 NwaCegarLoop]: trace histogram [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]
[2024-12-02 10:40:39,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2024-12-02 10:40:39,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-12-02 10:40:39,419 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:40:39,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:40:39,419 INFO L85 PathProgramCache]: Analyzing trace with hash -443415814, now seen corresponding path program 1 times
[2024-12-02 10:40:39,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:40:39,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [157821842]
[2024-12-02 10:40:39,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:40:39,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:39,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:40:39,421 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:40:39,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 10:40:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:40:39,478 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 10:40:39,479 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:40:39,645 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-12-02 10:40:39,645 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 10:40:39,646 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:40:39,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157821842]
[2024-12-02 10:40:39,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157821842] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:40:39,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:40:39,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 10:40:39,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811501912]
[2024-12-02 10:40:39,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:40:39,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 10:40:39,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:40:39,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 10:40:39,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 10:40:39,648 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:40:40,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:40:40,195 INFO L93 Difference]: Finished difference Result 98 states and 144 transitions.
[2024-12-02 10:40:40,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 10:40:40,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43
[2024-12-02 10:40:40,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:40:40,198 INFO L225 Difference]: With dead ends: 98
[2024-12-02 10:40:40,198 INFO L226 Difference]: Without dead ends: 57
[2024-12-02 10:40:40,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 10:40:40,199 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 10 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 10:40:40,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 142 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 10:40:40,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2024-12-02 10:40:40,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50.
[2024-12-02 10:40:40,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 42 states have internal predecessors, (59), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6)
[2024-12-02 10:40:40,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions.
[2024-12-02 10:40:40,207 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 43
[2024-12-02 10:40:40,207 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:40:40,207 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions.
[2024-12-02 10:40:40,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:40:40,208 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions.
[2024-12-02 10:40:40,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2024-12-02 10:40:40,209 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:40:40,209 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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]
[2024-12-02 10:40:40,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 10:40:40,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:40,409 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:40:40,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:40:40,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1534512391, now seen corresponding path program 1 times
[2024-12-02 10:40:40,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:40:40,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1702652226]
[2024-12-02 10:40:40,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:40:40,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:40,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:40:40,412 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:40:40,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 10:40:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:40:40,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-12-02 10:40:40,469 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:40:40,633 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2024-12-02 10:40:40,634 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 10:40:40,634 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:40:40,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702652226]
[2024-12-02 10:40:40,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702652226] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:40:40,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:40:40,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 10:40:40,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997010449]
[2024-12-02 10:40:40,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:40:40,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 10:40:40,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:40:40,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 10:40:40,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 10:40:40,635 INFO L87 Difference]: Start difference. First operand 50 states and 70 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2024-12-02 10:40:40,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:40:40,676 INFO L93 Difference]: Finished difference Result 70 states and 98 transitions.
[2024-12-02 10:40:40,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 10:40:40,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 45
[2024-12-02 10:40:40,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:40:40,678 INFO L225 Difference]: With dead ends: 70
[2024-12-02 10:40:40,678 INFO L226 Difference]: Without dead ends: 50
[2024-12-02 10:40:40,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 10:40:40,679 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 13 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 10:40:40,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 124 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 10:40:40,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2024-12-02 10:40:40,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2024-12-02 10:40:40,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.380952380952381) internal successors, (58), 42 states have internal predecessors, (58), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6)
[2024-12-02 10:40:40,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions.
[2024-12-02 10:40:40,687 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 45
[2024-12-02 10:40:40,687 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:40:40,688 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions.
[2024-12-02 10:40:40,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2024-12-02 10:40:40,688 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions.
[2024-12-02 10:40:40,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2024-12-02 10:40:40,689 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:40:40,689 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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]
[2024-12-02 10:40:40,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-12-02 10:40:40,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:40,889 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:40:40,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:40:40,890 INFO L85 PathProgramCache]: Analyzing trace with hash 677551233, now seen corresponding path program 1 times
[2024-12-02 10:40:40,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:40:40,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1064549992]
[2024-12-02 10:40:40,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:40:40,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:40,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:40:40,892 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:40:40,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-12-02 10:40:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:40:40,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 10:40:40,941 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:40:41,162 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2024-12-02 10:40:41,162 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 10:40:41,162 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:40:41,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064549992]
[2024-12-02 10:40:41,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064549992] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:40:41,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:40:41,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 10:40:41,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061556785]
[2024-12-02 10:40:41,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:40:41,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 10:40:41,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:40:41,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 10:40:41,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 10:40:41,164 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2024-12-02 10:40:41,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:40:41,233 INFO L93 Difference]: Finished difference Result 71 states and 98 transitions.
[2024-12-02 10:40:41,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 10:40:41,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 47
[2024-12-02 10:40:41,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:40:41,235 INFO L225 Difference]: With dead ends: 71
[2024-12-02 10:40:41,235 INFO L226 Difference]: Without dead ends: 50
[2024-12-02 10:40:41,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 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 10:40:41,236 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 13 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 10:40:41,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 181 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 10:40:41,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2024-12-02 10:40:41,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2024-12-02 10:40:41,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6)
[2024-12-02 10:40:41,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 68 transitions.
[2024-12-02 10:40:41,241 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 68 transitions. Word has length 47
[2024-12-02 10:40:41,241 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:40:41,241 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 68 transitions.
[2024-12-02 10:40:41,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2024-12-02 10:40:41,241 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions.
[2024-12-02 10:40:41,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2024-12-02 10:40:41,242 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:40:41,242 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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]
[2024-12-02 10:40:41,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-12-02 10:40:41,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:41,443 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:40:41,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:40:41,443 INFO L85 PathProgramCache]: Analyzing trace with hash 90745219, now seen corresponding path program 1 times
[2024-12-02 10:40:41,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:40:41,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1475691350]
[2024-12-02 10:40:41,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:40:41,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:41,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:40:41,445 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:40:41,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-12-02 10:40:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:40:41,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 10:40:41,501 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:40:41,700 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-12-02 10:40:41,700 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 10:40:41,700 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:40:41,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475691350]
[2024-12-02 10:40:41,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475691350] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:40:41,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:40:41,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 10:40:41,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896000578]
[2024-12-02 10:40:41,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:40:41,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 10:40:41,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:40:41,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 10:40:41,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 10:40:41,702 INFO L87 Difference]: Start difference. First operand 50 states and 68 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:40:42,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:40:42,068 INFO L93 Difference]: Finished difference Result 99 states and 138 transitions.
[2024-12-02 10:40:42,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 10:40:42,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47
[2024-12-02 10:40:42,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:40:42,070 INFO L225 Difference]: With dead ends: 99
[2024-12-02 10:40:42,070 INFO L226 Difference]: Without dead ends: 57
[2024-12-02 10:40:42,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 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 10:40:42,071 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 6 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 10:40:42,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 151 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 10:40:42,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2024-12-02 10:40:42,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54.
[2024-12-02 10:40:42,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 46 states have internal predecessors, (61), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8)
[2024-12-02 10:40:42,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 74 transitions.
[2024-12-02 10:40:42,076 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 74 transitions. Word has length 47
[2024-12-02 10:40:42,077 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:40:42,077 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 74 transitions.
[2024-12-02 10:40:42,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:40:42,077 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 74 transitions.
[2024-12-02 10:40:42,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2024-12-02 10:40:42,078 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:40:42,078 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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]
[2024-12-02 10:40:42,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-12-02 10:40:42,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:42,278 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:40:42,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:40:42,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1565809172, now seen corresponding path program 1 times
[2024-12-02 10:40:42,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:40:42,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020079540]
[2024-12-02 10:40:42,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:40:42,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:42,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:40:42,280 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:40:42,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-12-02 10:40:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:40:42,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 10:40:42,334 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:40:42,571 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-12-02 10:40:42,571 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 10:40:42,571 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:40:42,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020079540]
[2024-12-02 10:40:42,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020079540] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:40:42,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:40:42,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 10:40:42,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163207466]
[2024-12-02 10:40:42,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:40:42,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 10:40:42,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:40:42,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 10:40:42,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 10:40:42,572 INFO L87 Difference]: Start difference. First operand 54 states and 74 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:40:42,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:40:42,951 INFO L93 Difference]: Finished difference Result 106 states and 148 transitions.
[2024-12-02 10:40:42,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 10:40:42,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 48
[2024-12-02 10:40:42,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:40:42,953 INFO L225 Difference]: With dead ends: 106
[2024-12-02 10:40:42,953 INFO L226 Difference]: Without dead ends: 60
[2024-12-02 10:40:42,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 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 10:40:42,954 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 5 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 10:40:42,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 153 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 10:40:42,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2024-12-02 10:40:42,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56.
[2024-12-02 10:40:42,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 48 states have internal predecessors, (65), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8)
[2024-12-02 10:40:42,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions.
[2024-12-02 10:40:42,965 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 48
[2024-12-02 10:40:42,965 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:40:42,965 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions.
[2024-12-02 10:40:42,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:40:42,965 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions.
[2024-12-02 10:40:42,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2024-12-02 10:40:42,966 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:40:42,966 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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]
[2024-12-02 10:40:42,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-12-02 10:40:43,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:43,167 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:40:43,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:40:43,167 INFO L85 PathProgramCache]: Analyzing trace with hash 268015152, now seen corresponding path program 1 times
[2024-12-02 10:40:43,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:40:43,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1893697035]
[2024-12-02 10:40:43,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:40:43,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:43,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:40:43,169 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:40:43,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-12-02 10:40:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:40:43,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-02 10:40:43,222 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:40:43,882 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2024-12-02 10:40:43,882 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 10:40:44,463 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2024-12-02 10:40:44,463 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:40:44,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893697035]
[2024-12-02 10:40:44,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893697035] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 10:40:44,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 10:40:44,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6
[2024-12-02 10:40:44,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433282270]
[2024-12-02 10:40:44,464 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 10:40:44,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 10:40:44,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:40:44,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 10:40:44,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-12-02 10:40:44,465 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:40:44,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:40:44,840 INFO L93 Difference]: Finished difference Result 67 states and 91 transitions.
[2024-12-02 10:40:44,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 10:40:44,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 48
[2024-12-02 10:40:44,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:40:44,842 INFO L225 Difference]: With dead ends: 67
[2024-12-02 10:40:44,842 INFO L226 Difference]: Without dead ends: 62
[2024-12-02 10:40:44,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-12-02 10:40:44,843 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 14 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 10:40:44,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 240 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 10:40:44,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2024-12-02 10:40:44,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56.
[2024-12-02 10:40:44,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 48 states have internal predecessors, (64), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8)
[2024-12-02 10:40:44,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions.
[2024-12-02 10:40:44,854 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 48
[2024-12-02 10:40:44,854 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:40:44,854 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions.
[2024-12-02 10:40:44,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:40:44,855 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions.
[2024-12-02 10:40:44,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-12-02 10:40:44,856 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:40:44,856 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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]
[2024-12-02 10:40:44,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-12-02 10:40:45,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:45,056 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:40:45,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:40:45,057 INFO L85 PathProgramCache]: Analyzing trace with hash 684163988, now seen corresponding path program 1 times
[2024-12-02 10:40:45,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:40:45,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1496127957]
[2024-12-02 10:40:45,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:40:45,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:45,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:40:45,059 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:40:45,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-12-02 10:40:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:40:45,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-02 10:40:45,113 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:40:45,791 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-12-02 10:40:45,791 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 10:40:46,399 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2024-12-02 10:40:46,399 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:40:46,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496127957]
[2024-12-02 10:40:46,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496127957] provided 1 perfect and 1 imperfect interpolant sequences
[2024-12-02 10:40:46,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 10:40:46,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10
[2024-12-02 10:40:46,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675177843]
[2024-12-02 10:40:46,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:40:46,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 10:40:46,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:40:46,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 10:40:46,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2024-12-02 10:40:46,401 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2024-12-02 10:40:46,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:40:46,646 INFO L93 Difference]: Finished difference Result 62 states and 82 transitions.
[2024-12-02 10:40:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 10:40:46,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 50
[2024-12-02 10:40:46,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:40:46,648 INFO L225 Difference]: With dead ends: 62
[2024-12-02 10:40:46,648 INFO L226 Difference]: Without dead ends: 56
[2024-12-02 10:40:46,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2024-12-02 10:40:46,649 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 1 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 10:40:46,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 289 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 10:40:46,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2024-12-02 10:40:46,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56.
[2024-12-02 10:40:46,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 48 states have internal predecessors, (63), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8)
[2024-12-02 10:40:46,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 76 transitions.
[2024-12-02 10:40:46,657 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 76 transitions. Word has length 50
[2024-12-02 10:40:46,657 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:40:46,657 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 76 transitions.
[2024-12-02 10:40:46,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2024-12-02 10:40:46,658 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 76 transitions.
[2024-12-02 10:40:46,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-12-02 10:40:46,659 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:40:46,659 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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]
[2024-12-02 10:40:46,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-12-02 10:40:46,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:46,859 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:40:46,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:40:46,860 INFO L85 PathProgramCache]: Analyzing trace with hash 626905686, now seen corresponding path program 1 times
[2024-12-02 10:40:46,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:40:46,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [944964577]
[2024-12-02 10:40:46,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:40:46,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:46,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:40:46,861 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:40:46,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-12-02 10:40:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:40:46,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 10:40:46,911 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:40:47,460 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2024-12-02 10:40:47,460 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 10:40:47,460 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:40:47,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944964577]
[2024-12-02 10:40:47,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944964577] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:40:47,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:40:47,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-12-02 10:40:47,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914834443]
[2024-12-02 10:40:47,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:40:47,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 10:40:47,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:40:47,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 10:40:47,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-12-02 10:40:47,462 INFO L87 Difference]: Start difference. First operand 56 states and 76 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4)
[2024-12-02 10:40:47,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:40:47,833 INFO L93 Difference]: Finished difference Result 87 states and 117 transitions.
[2024-12-02 10:40:47,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 10:40:47,834 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 50
[2024-12-02 10:40:47,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:40:47,835 INFO L225 Difference]: With dead ends: 87
[2024-12-02 10:40:47,835 INFO L226 Difference]: Without dead ends: 69
[2024-12-02 10:40:47,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-12-02 10:40:47,836 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 1 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 10:40:47,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 326 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 10:40:47,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states.
[2024-12-02 10:40:47,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69.
[2024-12-02 10:40:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 58 states have (on average 1.2758620689655173) internal successors, (74), 60 states have internal predecessors, (74), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13)
[2024-12-02 10:40:47,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 92 transitions.
[2024-12-02 10:40:47,846 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 92 transitions. Word has length 50
[2024-12-02 10:40:47,846 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:40:47,846 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 92 transitions.
[2024-12-02 10:40:47,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4)
[2024-12-02 10:40:47,846 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 92 transitions.
[2024-12-02 10:40:47,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-12-02 10:40:47,847 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:40:47,847 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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]
[2024-12-02 10:40:47,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2024-12-02 10:40:48,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:48,048 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:40:48,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:40:48,048 INFO L85 PathProgramCache]: Analyzing trace with hash 885071124, now seen corresponding path program 1 times
[2024-12-02 10:40:48,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:40:48,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1039985660]
[2024-12-02 10:40:48,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:40:48,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:48,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:40:48,050 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:40:48,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-12-02 10:40:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:40:48,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 10:40:48,096 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:40:48,341 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2024-12-02 10:40:48,342 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 10:40:48,342 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:40:48,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039985660]
[2024-12-02 10:40:48,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039985660] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:40:48,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:40:48,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 10:40:48,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125584953]
[2024-12-02 10:40:48,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:40:48,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 10:40:48,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:40:48,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 10:40:48,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 10:40:48,343 INFO L87 Difference]: Start difference. First operand 69 states and 92 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2024-12-02 10:40:48,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:40:48,530 INFO L93 Difference]: Finished difference Result 80 states and 102 transitions.
[2024-12-02 10:40:48,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 10:40:48,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 50
[2024-12-02 10:40:48,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:40:48,531 INFO L225 Difference]: With dead ends: 80
[2024-12-02 10:40:48,531 INFO L226 Difference]: Without dead ends: 62
[2024-12-02 10:40:48,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 10:40:48,532 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 10:40:48,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 218 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 10:40:48,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2024-12-02 10:40:48,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2024-12-02 10:40:48,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 54 states have internal predecessors, (65), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10)
[2024-12-02 10:40:48,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions.
[2024-12-02 10:40:48,538 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 50
[2024-12-02 10:40:48,538 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:40:48,538 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions.
[2024-12-02 10:40:48,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2024-12-02 10:40:48,538 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions.
[2024-12-02 10:40:48,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2024-12-02 10:40:48,539 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:40:48,539 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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 10:40:48,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-12-02 10:40:48,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:48,739 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:40:48,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:40:48,740 INFO L85 PathProgramCache]: Analyzing trace with hash 12145430, now seen corresponding path program 1 times
[2024-12-02 10:40:48,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:40:48,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2049126929]
[2024-12-02 10:40:48,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:40:48,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:48,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:40:48,742 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:40:48,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-12-02 10:40:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:40:48,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-12-02 10:40:48,796 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:40:49,478 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked.
[2024-12-02 10:40:49,478 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 10:40:49,917 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked.
[2024-12-02 10:40:49,918 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:40:49,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049126929]
[2024-12-02 10:40:49,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049126929] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 10:40:49,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 10:40:49,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8
[2024-12-02 10:40:49,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821718054]
[2024-12-02 10:40:49,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 10:40:49,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-12-02 10:40:49,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:40:49,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-12-02 10:40:49,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-12-02 10:40:49,919 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:40:50,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:40:50,527 INFO L93 Difference]: Finished difference Result 89 states and 113 transitions.
[2024-12-02 10:40:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 10:40:50,528 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54
[2024-12-02 10:40:50,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:40:50,529 INFO L225 Difference]: With dead ends: 89
[2024-12-02 10:40:50,529 INFO L226 Difference]: Without dead ends: 59
[2024-12-02 10:40:50,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2024-12-02 10:40:50,530 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 1 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 10:40:50,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 353 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 10:40:50,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states.
[2024-12-02 10:40:50,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59.
[2024-12-02 10:40:50,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 49 states have (on average 1.2653061224489797) internal successors, (62), 51 states have internal predecessors, (62), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7)
[2024-12-02 10:40:50,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions.
[2024-12-02 10:40:50,537 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 54
[2024-12-02 10:40:50,537 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:40:50,537 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions.
[2024-12-02 10:40:50,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:40:50,538 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions.
[2024-12-02 10:40:50,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-12-02 10:40:50,538 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:40:50,538 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:40:50,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-12-02 10:40:50,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:50,739 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:40:50,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:40:50,739 INFO L85 PathProgramCache]: Analyzing trace with hash -654941126, now seen corresponding path program 2 times
[2024-12-02 10:40:50,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:40:50,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [883644630]
[2024-12-02 10:40:50,740 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 10:40:50,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:50,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:40:50,741 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:40:50,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-12-02 10:40:50,798 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 10:40:50,799 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 10:40:50,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-12-02 10:40:50,802 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:40:51,967 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2024-12-02 10:40:51,968 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 10:40:53,651 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2024-12-02 10:40:53,651 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:40:53,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883644630]
[2024-12-02 10:40:53,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883644630] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 10:40:53,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 10:40:53,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16
[2024-12-02 10:40:53,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496332267]
[2024-12-02 10:40:53,652 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 10:40:53,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-12-02 10:40:53,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:40:53,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-12-02 10:40:53,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240
[2024-12-02 10:40:53,653 INFO L87 Difference]: Start difference. First operand 59 states and 74 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 12 states have internal predecessors, (47), 6 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8)
[2024-12-02 10:40:54,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:40:54,807 INFO L93 Difference]: Finished difference Result 88 states and 112 transitions.
[2024-12-02 10:40:54,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-12-02 10:40:54,808 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 12 states have internal predecessors, (47), 6 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) Word has length 57
[2024-12-02 10:40:54,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:40:54,809 INFO L225 Difference]: With dead ends: 88
[2024-12-02 10:40:54,809 INFO L226 Difference]: Without dead ends: 62
[2024-12-02 10:40:54,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240
[2024-12-02 10:40:54,810 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 23 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-12-02 10:40:54,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 599 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-12-02 10:40:54,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2024-12-02 10:40:54,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2024-12-02 10:40:54,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 54 states have internal predecessors, (64), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8)
[2024-12-02 10:40:54,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions.
[2024-12-02 10:40:54,817 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 57
[2024-12-02 10:40:54,817 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:40:54,817 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions.
[2024-12-02 10:40:54,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 12 states have internal predecessors, (47), 6 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8)
[2024-12-02 10:40:54,818 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions.
[2024-12-02 10:40:54,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-12-02 10:40:54,818 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:40:54,819 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:40:54,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2024-12-02 10:40:55,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:55,019 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:40:55,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:40:55,020 INFO L85 PathProgramCache]: Analyzing trace with hash 96951158, now seen corresponding path program 3 times
[2024-12-02 10:40:55,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:40:55,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1142720537]
[2024-12-02 10:40:55,020 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 10:40:55,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:55,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:40:55,022 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:40:55,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-12-02 10:40:55,077 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2024-12-02 10:40:55,077 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 10:40:55,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 10:40:55,079 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:40:55,466 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-12-02 10:40:55,466 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 10:40:55,466 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:40:55,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142720537]
[2024-12-02 10:40:55,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142720537] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:40:55,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:40:55,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 10:40:55,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247730442]
[2024-12-02 10:40:55,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:40:55,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 10:40:55,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:40:55,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 10:40:55,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 10:40:55,468 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:40:56,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:40:56,102 INFO L93 Difference]: Finished difference Result 120 states and 148 transitions.
[2024-12-02 10:40:56,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 10:40:56,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57
[2024-12-02 10:40:56,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:40:56,104 INFO L225 Difference]: With dead ends: 120
[2024-12-02 10:40:56,104 INFO L226 Difference]: Without dead ends: 66
[2024-12-02 10:40:56,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-12-02 10:40:56,105 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 6 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 10:40:56,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 181 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 10:40:56,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2024-12-02 10:40:56,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66.
[2024-12-02 10:40:56,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 54 states have (on average 1.2407407407407407) internal successors, (67), 58 states have internal predecessors, (67), 5 states have call successors, (5), 3 states have call predecessors, (5), 6 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10)
[2024-12-02 10:40:56,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 82 transitions.
[2024-12-02 10:40:56,113 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 82 transitions. Word has length 57
[2024-12-02 10:40:56,113 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:40:56,113 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 82 transitions.
[2024-12-02 10:40:56,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:40:56,113 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 82 transitions.
[2024-12-02 10:40:56,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2024-12-02 10:40:56,114 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:40:56,114 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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]
[2024-12-02 10:40:56,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-12-02 10:40:56,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:56,315 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:40:56,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:40:56,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1853551782, now seen corresponding path program 1 times
[2024-12-02 10:40:56,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:40:56,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2144386891]
[2024-12-02 10:40:56,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:40:56,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:56,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:40:56,317 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:40:56,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-12-02 10:40:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:40:56,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 10:40:56,367 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:40:56,700 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-12-02 10:40:56,700 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 10:40:57,484 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2024-12-02 10:40:57,484 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:40:57,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144386891]
[2024-12-02 10:40:57,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144386891] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 10:40:57,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 10:40:57,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2024-12-02 10:40:57,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820177538]
[2024-12-02 10:40:57,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 10:40:57,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-12-02 10:40:57,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:40:57,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-12-02 10:40:57,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-12-02 10:40:57,486 INFO L87 Difference]: Start difference. First operand 66 states and 82 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-12-02 10:40:58,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:40:58,362 INFO L93 Difference]: Finished difference Result 139 states and 173 transitions.
[2024-12-02 10:40:58,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-12-02 10:40:58,363 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58
[2024-12-02 10:40:58,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:40:58,364 INFO L225 Difference]: With dead ends: 139
[2024-12-02 10:40:58,364 INFO L226 Difference]: Without dead ends: 75
[2024-12-02 10:40:58,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2024-12-02 10:40:58,365 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 15 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-12-02 10:40:58,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 241 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-12-02 10:40:58,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states.
[2024-12-02 10:40:58,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72.
[2024-12-02 10:40:58,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 64 states have internal predecessors, (76), 5 states have call successors, (5), 3 states have call predecessors, (5), 6 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10)
[2024-12-02 10:40:58,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 91 transitions.
[2024-12-02 10:40:58,371 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 91 transitions. Word has length 58
[2024-12-02 10:40:58,371 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:40:58,371 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 91 transitions.
[2024-12-02 10:40:58,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-12-02 10:40:58,371 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 91 transitions.
[2024-12-02 10:40:58,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2024-12-02 10:40:58,372 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:40:58,372 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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]
[2024-12-02 10:40:58,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2024-12-02 10:40:58,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:58,573 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:40:58,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:40:58,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1127828100, now seen corresponding path program 1 times
[2024-12-02 10:40:58,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:40:58,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [604270337]
[2024-12-02 10:40:58,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:40:58,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:40:58,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:40:58,576 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:40:58,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-12-02 10:40:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:40:58,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-02 10:40:58,640 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:40:59,236 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-12-02 10:40:59,236 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 10:40:59,236 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:40:59,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604270337]
[2024-12-02 10:40:59,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604270337] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:40:59,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:40:59,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 10:40:59,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502349881]
[2024-12-02 10:40:59,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:40:59,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 10:40:59,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:40:59,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 10:40:59,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-12-02 10:40:59,238 INFO L87 Difference]: Start difference. First operand 72 states and 91 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:41:00,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:41:00,048 INFO L93 Difference]: Finished difference Result 140 states and 176 transitions.
[2024-12-02 10:41:00,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 10:41:00,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 58
[2024-12-02 10:41:00,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:41:00,051 INFO L225 Difference]: With dead ends: 140
[2024-12-02 10:41:00,051 INFO L226 Difference]: Without dead ends: 76
[2024-12-02 10:41:00,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-12-02 10:41:00,052 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 8 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-12-02 10:41:00,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 185 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-12-02 10:41:00,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states.
[2024-12-02 10:41:00,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72.
[2024-12-02 10:41:00,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 64 states have internal predecessors, (76), 5 states have call successors, (5), 3 states have call predecessors, (5), 6 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10)
[2024-12-02 10:41:00,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 91 transitions.
[2024-12-02 10:41:00,060 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 91 transitions. Word has length 58
[2024-12-02 10:41:00,060 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:41:00,060 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 91 transitions.
[2024-12-02 10:41:00,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:41:00,060 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 91 transitions.
[2024-12-02 10:41:00,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2024-12-02 10:41:00,060 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:41:00,060 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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 10:41:00,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2024-12-02 10:41:00,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:41:00,261 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:41:00,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:41:00,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1012317842, now seen corresponding path program 1 times
[2024-12-02 10:41:00,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:41:00,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2081268006]
[2024-12-02 10:41:00,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:41:00,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:41:00,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:41:00,263 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:41:00,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-12-02 10:41:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:41:00,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 10:41:00,310 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:41:00,561 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-12-02 10:41:00,562 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 10:41:00,562 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:41:00,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081268006]
[2024-12-02 10:41:00,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081268006] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 10:41:00,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 10:41:00,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 10:41:00,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910588181]
[2024-12-02 10:41:00,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 10:41:00,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 10:41:00,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:41:00,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 10:41:00,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 10:41:00,563 INFO L87 Difference]: Start difference. First operand 72 states and 91 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:41:00,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:41:00,985 INFO L93 Difference]: Finished difference Result 144 states and 181 transitions.
[2024-12-02 10:41:00,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 10:41:00,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 59
[2024-12-02 10:41:00,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:41:00,986 INFO L225 Difference]: With dead ends: 144
[2024-12-02 10:41:00,986 INFO L226 Difference]: Without dead ends: 80
[2024-12-02 10:41:00,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 10:41:00,987 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 11 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 10:41:00,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 133 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 10:41:00,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2024-12-02 10:41:00,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 67.
[2024-12-02 10:41:00,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 56 states have (on average 1.25) internal successors, (70), 59 states have internal predecessors, (70), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8)
[2024-12-02 10:41:00,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 83 transitions.
[2024-12-02 10:41:00,993 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 83 transitions. Word has length 59
[2024-12-02 10:41:00,993 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:41:00,993 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 83 transitions.
[2024-12-02 10:41:00,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:41:00,994 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 83 transitions.
[2024-12-02 10:41:00,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-12-02 10:41:00,994 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:41:00,994 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1]
[2024-12-02 10:41:01,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0
[2024-12-02 10:41:01,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:41:01,195 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:41:01,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:41:01,195 INFO L85 PathProgramCache]: Analyzing trace with hash 6008039, now seen corresponding path program 1 times
[2024-12-02 10:41:01,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:41:01,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706731786]
[2024-12-02 10:41:01,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:41:01,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:41:01,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:41:01,197 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:41:01,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2024-12-02 10:41:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 10:41:01,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 10:41:01,246 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:41:02,237 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-12-02 10:41:02,237 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 10:41:03,855 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2024-12-02 10:41:03,856 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:41:03,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706731786]
[2024-12-02 10:41:03,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706731786] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 10:41:03,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 10:41:03,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14
[2024-12-02 10:41:03,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932918724]
[2024-12-02 10:41:03,856 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 10:41:03,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-12-02 10:41:03,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:41:03,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-12-02 10:41:03,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182
[2024-12-02 10:41:03,858 INFO L87 Difference]: Start difference. First operand 67 states and 83 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-12-02 10:41:06,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:41:06,313 INFO L93 Difference]: Finished difference Result 147 states and 185 transitions.
[2024-12-02 10:41:06,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-12-02 10:41:06,314 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60
[2024-12-02 10:41:06,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:41:06,315 INFO L225 Difference]: With dead ends: 147
[2024-12-02 10:41:06,315 INFO L226 Difference]: Without dead ends: 88
[2024-12-02 10:41:06,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=141, Invalid=239, Unknown=0, NotChecked=0, Total=380
[2024-12-02 10:41:06,316 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 33 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-12-02 10:41:06,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 295 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-12-02 10:41:06,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states.
[2024-12-02 10:41:06,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 70.
[2024-12-02 10:41:06,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 62 states have internal predecessors, (76), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8)
[2024-12-02 10:41:06,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions.
[2024-12-02 10:41:06,322 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 60
[2024-12-02 10:41:06,322 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:41:06,323 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions.
[2024-12-02 10:41:06,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-12-02 10:41:06,323 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions.
[2024-12-02 10:41:06,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-12-02 10:41:06,323 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:41:06,324 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 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]
[2024-12-02 10:41:06,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0
[2024-12-02 10:41:06,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:41:06,524 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 10:41:06,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:41:06,524 INFO L85 PathProgramCache]: Analyzing trace with hash -263903857, now seen corresponding path program 2 times
[2024-12-02 10:41:06,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 10:41:06,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1178409337]
[2024-12-02 10:41:06,525 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 10:41:06,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:41:06,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:41:06,526 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 10:41:06,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2024-12-02 10:41:06,581 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 10:41:06,581 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 10:41:06,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 10:41:06,585 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 10:41:07,487 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2024-12-02 10:41:07,487 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 10:41:08,199 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2024-12-02 10:41:08,199 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 10:41:08,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178409337]
[2024-12-02 10:41:08,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178409337] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 10:41:08,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 10:41:08,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9
[2024-12-02 10:41:08,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112085209]
[2024-12-02 10:41:08,199 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 10:41:08,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 10:41:08,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 10:41:08,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 10:41:08,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2024-12-02 10:41:08,201 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:41:09,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 10:41:09,060 INFO L93 Difference]: Finished difference Result 71 states and 90 transitions.
[2024-12-02 10:41:09,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-12-02 10:41:09,060 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 64
[2024-12-02 10:41:09,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 10:41:09,061 INFO L225 Difference]: With dead ends: 71
[2024-12-02 10:41:09,061 INFO L226 Difference]: Without dead ends: 0
[2024-12-02 10:41:09,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 117 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156
[2024-12-02 10:41:09,062 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 6 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 10:41:09,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 222 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 10:41:09,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-12-02 10:41:09,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-12-02 10:41:09,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 10:41:09,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-12-02 10:41:09,063 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64
[2024-12-02 10:41:09,063 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 10:41:09,063 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-12-02 10:41:09,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 10:41:09,063 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-12-02 10:41:09,064 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-12-02 10:41:09,066 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2024-12-02 10:41:09,067 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-12-02 10:41:09,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0
[2024-12-02 10:41:09,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 10:41:09,269 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:41:09,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-12-02 10:41:11,865 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 10:41:11,875 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode
[2024-12-02 10:41:11,875 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven
[2024-12-02 10:41:11,878 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode
[2024-12-02 10:41:11,878 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven
[2024-12-02 10:41:11,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:41:11 BoogieIcfgContainer
[2024-12-02 10:41:11,878 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 10:41:11,879 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 10:41:11,879 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 10:41:11,879 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 10:41:11,880 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:37:24" (3/4) ...
[2024-12-02 10:41:11,882 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-12-02 10:41:11,885 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure base2flt
[2024-12-02 10:41:11,886 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2024-12-02 10:41:11,890 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges
[2024-12-02 10:41:11,890 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges
[2024-12-02 10:41:11,890 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-12-02 10:41:11,891 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-12-02 10:41:11,908 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0 != \old(m)) && ((1 != \old(m)) || (m < 16777216)))
[2024-12-02 10:41:11,908 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(((e + -1) % 4294967296) <= -128) || (0 != \old(e))) && ((0 != \old(e)) || !(e <= -128))) && !(\old(m) < 16777216))
[2024-12-02 10:41:11,925 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0 != \old(m)) && ((1 != \old(m)) || (m < 16777216)))
[2024-12-02 10:41:11,925 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(((e + -1) % 4294967296) <= -128) || (0 != \old(e))) && ((0 != \old(e)) || !(e <= -128))) && !(\old(m) < 16777216))
[2024-12-02 10:41:11,954 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-02 10:41:11,954 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-02 10:41:11,954 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 10:41:11,955 INFO L158 Benchmark]: Toolchain (without parser) took 232511.93ms. Allocated memory is still 92.3MB. Free memory was 68.8MB in the beginning and 34.3MB in the end (delta: 34.4MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB.
[2024-12-02 10:41:11,955 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 47.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 10:41:11,955 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.49ms. Allocated memory is still 92.3MB. Free memory was 68.6MB in the beginning and 53.8MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 10:41:11,955 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.20ms. Allocated memory is still 92.3MB. Free memory was 53.8MB in the beginning and 52.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 10:41:11,955 INFO L158 Benchmark]: Boogie Preprocessor took 41.10ms. Allocated memory is still 92.3MB. Free memory was 52.2MB in the beginning and 50.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 10:41:11,956 INFO L158 Benchmark]: RCFGBuilder took 4578.96ms. Allocated memory is still 92.3MB. Free memory was 50.1MB in the beginning and 62.3MB in the end (delta: -12.3MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB.
[2024-12-02 10:41:11,956 INFO L158 Benchmark]: TraceAbstraction took 227546.29ms. Allocated memory is still 92.3MB. Free memory was 61.7MB in the beginning and 40.4MB in the end (delta: 21.3MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB.
[2024-12-02 10:41:11,956 INFO L158 Benchmark]: Witness Printer took 75.14ms. Allocated memory is still 92.3MB. Free memory was 40.4MB in the beginning and 34.3MB in the end (delta: 6.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 10:41:11,958 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 47.3MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 237.49ms. Allocated memory is still 92.3MB. Free memory was 68.6MB in the beginning and 53.8MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 28.20ms. Allocated memory is still 92.3MB. Free memory was 53.8MB in the beginning and 52.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 41.10ms. Allocated memory is still 92.3MB. Free memory was 52.2MB in the beginning and 50.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 4578.96ms. Allocated memory is still 92.3MB. Free memory was 50.1MB in the beginning and 62.3MB in the end (delta: -12.3MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB.
* TraceAbstraction took 227546.29ms. Allocated memory is still 92.3MB. Free memory was 61.7MB in the beginning and 40.4MB in the end (delta: 21.3MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB.
* Witness Printer took 75.14ms. Allocated memory is still 92.3MB. Free memory was 40.4MB in the beginning and 34.3MB in the end (delta: 6.0MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: currentRoundingMode
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: currentRoundingMode
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 48]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- PositiveResult [Line: 60]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 59 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 224.9s, OverallIterations: 19, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 23.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 232 SdHoareTripleChecker+Valid, 20.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 229 mSDsluCounter, 4285 SdHoareTripleChecker+Invalid, 20.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 138 IncrementalHoareTripleChecker+Unchecked, 3235 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 915 IncrementalHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 1050 mSDtfsCounter, 915 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1295 GetRequests, 1187 SyntacticMatches, 3 SemanticMatches, 105 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 21.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=15, InterpolantAutomatonStates: 124, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 19 MinimizatonAttempts, 58 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 83.8s SatisfiabilityAnalysisTime, 113.3s InterpolantComputationTime, 909 NumberOfCodeBlocks, 909 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1274 ConstructedInterpolants, 2 QuantifiedInterpolants, 2373 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1694 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 26 InterpolantComputations, 13 PerfectInterpolantSequences, 725/826 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
2 specifications checked. All of them hold
- InvariantResult [Line: 100]: Loop Invariant
Derived loop invariant: (((!(((e + -1) % 4294967296) <= -128) || (0 != \old(e))) && ((0 != \old(e)) || !(e <= -128))) && !(\old(m) < 16777216))
- InvariantResult [Line: 80]: Loop Invariant
Derived loop invariant: ((0 != \old(m)) && ((1 != \old(m)) || (m < 16777216)))
RESULT: Ultimate proved your program to be correct!
[2024-12-02 10:41:12,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c689b75-d2c3-46eb-8670-2e9e97a33e00/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE