./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-21.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC --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 7001a99b958cb5a783d624aa4b4b483c2055b6507029df9ffd20f7aa9d768319
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 18:23:43,079 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 18:23:43,161 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-23 18:23:43,168 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 18:23:43,168 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 18:23:43,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 18:23:43,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 18:23:43,202 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 18:23:43,202 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 18:23:43,203 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 18:23:43,203 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 18:23:43,203 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 18:23:43,204 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 18:23:43,204 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 18:23:43,204 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 18:23:43,204 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 18:23:43,204 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 18:23:43,205 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 18:23:43,205 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 18:23:43,205 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 18:23:43,205 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 18:23:43,205 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 18:23:43,206 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 18:23:43,206 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 18:23:43,206 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 18:23:43,206 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 18:23:43,206 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 18:23:43,207 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 18:23:43,207 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 18:23:43,207 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 18:23:43,207 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 18:23:43,207 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 18:23:43,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:23:43,208 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 18:23:43,208 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 18:23:43,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 18:23:43,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 18:23:43,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:23:43,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 18:23:43,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 18:23:43,209 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 18:23:43,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 18:23:43,209 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 18:23:43,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 18:23:43,209 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 18:23:43,209 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 18:23:43,209 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 18:23:43,210 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 18:23:43,210 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_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 7001a99b958cb5a783d624aa4b4b483c2055b6507029df9ffd20f7aa9d768319
[2024-11-23 18:23:43,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 18:23:43,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 18:23:43,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 18:23:43,618 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 18:23:43,618 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 18:23:43,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-21.i
[2024-11-23 18:23:47,358 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/data/992d60fad/c9f2f9260af241e38f4acfd7882115be/FLAG8087954ab
[2024-11-23 18:23:47,787 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 18:23:47,788 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-21.i
[2024-11-23 18:23:47,806 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/data/992d60fad/c9f2f9260af241e38f4acfd7882115be/FLAG8087954ab
[2024-11-23 18:23:47,830 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/data/992d60fad/c9f2f9260af241e38f4acfd7882115be
[2024-11-23 18:23:47,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 18:23:47,835 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 18:23:47,837 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 18:23:47,837 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 18:23:47,842 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 18:23:47,844 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:23:47" (1/1) ...
[2024-11-23 18:23:47,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7490d79a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:23:47, skipping insertion in model container
[2024-11-23 18:23:47,845 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:23:47" (1/1) ...
[2024-11-23 18:23:47,868 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 18:23:48,033 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_c2879b9f-a547-45ee-808b-8540a1581ed0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-21.i[915,928]
[2024-11-23 18:23:48,111 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 18:23:48,129 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 18:23:48,144 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_c2879b9f-a547-45ee-808b-8540a1581ed0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-21.i[915,928]
[2024-11-23 18:23:48,190 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 18:23:48,227 INFO L204 MainTranslator]: Completed translation
[2024-11-23 18:23:48,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:23:48 WrapperNode
[2024-11-23 18:23:48,228 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 18:23:48,229 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 18:23:48,231 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 18:23:48,231 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 18:23:48,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:23:48" (1/1) ...
[2024-11-23 18:23:48,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:23:48" (1/1) ...
[2024-11-23 18:23:48,295 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91
[2024-11-23 18:23:48,299 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 18:23:48,303 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 18:23:48,303 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 18:23:48,303 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 18:23:48,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:23:48" (1/1) ...
[2024-11-23 18:23:48,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:23:48" (1/1) ...
[2024-11-23 18:23:48,326 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:23:48" (1/1) ...
[2024-11-23 18:23:48,351 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].
[2024-11-23 18:23:48,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:23:48" (1/1) ...
[2024-11-23 18:23:48,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:23:48" (1/1) ...
[2024-11-23 18:23:48,368 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:23:48" (1/1) ...
[2024-11-23 18:23:48,370 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:23:48" (1/1) ...
[2024-11-23 18:23:48,377 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:23:48" (1/1) ...
[2024-11-23 18:23:48,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:23:48" (1/1) ...
[2024-11-23 18:23:48,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:23:48" (1/1) ...
[2024-11-23 18:23:48,387 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 18:23:48,390 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 18:23:48,390 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 18:23:48,390 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 18:23:48,394 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:23:48" (1/1) ...
[2024-11-23 18:23:48,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:23:48,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 18:23:48,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 18:23:48,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 18:23:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 18:23:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-23 18:23:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-23 18:23:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 18:23:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 18:23:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 18:23:48,582 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 18:23:48,584 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 18:23:48,949 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live.
[2024-11-23 18:23:48,949 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 18:23:48,967 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 18:23:48,968 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-23 18:23:48,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:23:48 BoogieIcfgContainer
[2024-11-23 18:23:48,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 18:23:48,974 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 18:23:48,974 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 18:23:48,981 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 18:23:48,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:23:47" (1/3) ...
[2024-11-23 18:23:48,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0350c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:23:48, skipping insertion in model container
[2024-11-23 18:23:48,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:23:48" (2/3) ...
[2024-11-23 18:23:48,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0350c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:23:48, skipping insertion in model container
[2024-11-23 18:23:48,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:23:48" (3/3) ...
[2024-11-23 18:23:48,986 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-21.i
[2024-11-23 18:23:49,006 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 18:23:49,010 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-21.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-23 18:23:49,086 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 18:23:49,103 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;@3414cf19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 18:23:49,103 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-23 18:23:49,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-23 18:23:49,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-23 18:23:49,116 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:23:49,117 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:23:49,118 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:23:49,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:23:49,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1174544175, now seen corresponding path program 1 times
[2024-11-23 18:23:49,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:23:49,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817836135]
[2024-11-23 18:23:49,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:23:49,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:23:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:23:49,438 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked.
[2024-11-23 18:23:49,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:23:49,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817836135]
[2024-11-23 18:23:49,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817836135] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 18:23:49,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458884327]
[2024-11-23 18:23:49,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:23:49,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 18:23:49,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 18:23:49,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 18:23:49,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-23 18:23:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:23:49,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-23 18:23:49,566 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:23:49,584 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked.
[2024-11-23 18:23:49,584 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 18:23:49,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458884327] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:23:49,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 18:23:49,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-23 18:23:49,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464731629]
[2024-11-23 18:23:49,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:23:49,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-23 18:23:49,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:23:49,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-23 18:23:49,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 18:23:49,615 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-23 18:23:49,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:23:49,634 INFO L93 Difference]: Finished difference Result 75 states and 119 transitions.
[2024-11-23 18:23:49,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 18:23:49,637 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64
[2024-11-23 18:23:49,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:23:49,643 INFO L225 Difference]: With dead ends: 75
[2024-11-23 18:23:49,644 INFO L226 Difference]: Without dead ends: 37
[2024-11-23 18:23:49,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 18:23:49,650 INFO L435 NwaCegarLoop]: 51 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, 51 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
[2024-11-23 18:23:49,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 18:23:49,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2024-11-23 18:23:49,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37.
[2024-11-23 18:23:49,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-23 18:23:49,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions.
[2024-11-23 18:23:49,700 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 64
[2024-11-23 18:23:49,701 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:23:49,701 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions.
[2024-11-23 18:23:49,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-23 18:23:49,702 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions.
[2024-11-23 18:23:49,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-23 18:23:49,704 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:23:49,705 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:23:49,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-23 18:23:49,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-23 18:23:49,906 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:23:49,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:23:49,907 INFO L85 PathProgramCache]: Analyzing trace with hash -562669323, now seen corresponding path program 1 times
[2024-11-23 18:23:49,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:23:49,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798329173]
[2024-11-23 18:23:49,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:23:49,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:23:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:23:50,284 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-23 18:23:50,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:23:50,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798329173]
[2024-11-23 18:23:50,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798329173] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:23:50,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:23:50,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 18:23:50,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242903852]
[2024-11-23 18:23:50,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:23:50,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 18:23:50,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:23:50,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 18:23:50,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 18:23:50,291 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:23:50,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:23:50,331 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions.
[2024-11-23 18:23:50,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 18:23:50,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64
[2024-11-23 18:23:50,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:23:50,333 INFO L225 Difference]: With dead ends: 71
[2024-11-23 18:23:50,333 INFO L226 Difference]: Without dead ends: 37
[2024-11-23 18:23:50,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 18:23:50,335 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 18:23:50,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 18:23:50,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2024-11-23 18:23:50,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37.
[2024-11-23 18:23:50,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-23 18:23:50,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions.
[2024-11-23 18:23:50,344 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 50 transitions. Word has length 64
[2024-11-23 18:23:50,346 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:23:50,346 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 50 transitions.
[2024-11-23 18:23:50,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:23:50,347 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions.
[2024-11-23 18:23:50,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-23 18:23:50,348 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:23:50,349 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:23:50,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-23 18:23:50,349 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:23:50,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:23:50,350 INFO L85 PathProgramCache]: Analyzing trace with hash -505411021, now seen corresponding path program 1 times
[2024-11-23 18:23:50,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:23:50,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477782801]
[2024-11-23 18:23:50,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:23:50,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:23:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:23:52,711 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-23 18:23:52,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:23:52,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477782801]
[2024-11-23 18:23:52,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477782801] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:23:52,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:23:52,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-23 18:23:52,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144309599]
[2024-11-23 18:23:52,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:23:52,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-23 18:23:52,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:23:52,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-23 18:23:52,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-23 18:23:52,718 INFO L87 Difference]: Start difference. First operand 37 states and 50 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:23:53,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:23:53,091 INFO L93 Difference]: Finished difference Result 84 states and 105 transitions.
[2024-11-23 18:23:53,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-23 18:23:53,092 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64
[2024-11-23 18:23:53,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:23:53,094 INFO L225 Difference]: With dead ends: 84
[2024-11-23 18:23:53,094 INFO L226 Difference]: Without dead ends: 82
[2024-11-23 18:23:53,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72
[2024-11-23 18:23:53,096 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 61 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-23 18:23:53,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 287 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-23 18:23:53,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2024-11-23 18:23:53,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 69.
[2024-11-23 18:23:53,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 49 states have (on average 1.183673469387755) internal successors, (58), 50 states have internal predecessors, (58), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-23 18:23:53,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 90 transitions.
[2024-11-23 18:23:53,141 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 90 transitions. Word has length 64
[2024-11-23 18:23:53,142 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:23:53,143 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 90 transitions.
[2024-11-23 18:23:53,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:23:53,144 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 90 transitions.
[2024-11-23 18:23:53,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2024-11-23 18:23:53,149 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:23:53,150 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:23:53,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-23 18:23:53,150 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:23:53,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:23:53,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1278414269, now seen corresponding path program 1 times
[2024-11-23 18:23:53,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:23:53,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814693778]
[2024-11-23 18:23:53,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:23:53,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:23:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:23:54,697 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-23 18:23:54,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:23:54,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814693778]
[2024-11-23 18:23:54,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814693778] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:23:54,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:23:54,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-23 18:23:54,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168718875]
[2024-11-23 18:23:54,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:23:54,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-23 18:23:54,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:23:54,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-23 18:23:54,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-23 18:23:54,703 INFO L87 Difference]: Start difference. First operand 69 states and 90 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:23:55,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:23:55,197 INFO L93 Difference]: Finished difference Result 88 states and 109 transitions.
[2024-11-23 18:23:55,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-23 18:23:55,198 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 65
[2024-11-23 18:23:55,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:23:55,202 INFO L225 Difference]: With dead ends: 88
[2024-11-23 18:23:55,202 INFO L226 Difference]: Without dead ends: 86
[2024-11-23 18:23:55,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2024-11-23 18:23:55,204 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 63 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-23 18:23:55,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 297 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-23 18:23:55,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states.
[2024-11-23 18:23:55,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 66.
[2024-11-23 18:23:55,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 46 states have (on average 1.173913043478261) internal successors, (54), 47 states have internal predecessors, (54), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-23 18:23:55,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 86 transitions.
[2024-11-23 18:23:55,240 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 86 transitions. Word has length 65
[2024-11-23 18:23:55,242 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:23:55,242 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 86 transitions.
[2024-11-23 18:23:55,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:23:55,244 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions.
[2024-11-23 18:23:55,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2024-11-23 18:23:55,246 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:23:55,246 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:23:55,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-23 18:23:55,247 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:23:55,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:23:55,248 INFO L85 PathProgramCache]: Analyzing trace with hash 434558742, now seen corresponding path program 1 times
[2024-11-23 18:23:55,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:23:55,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000914312]
[2024-11-23 18:23:55,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:23:55,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:23:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-23 18:23:55,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [770089216]
[2024-11-23 18:23:55,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:23:55,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 18:23:55,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 18:23:55,338 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 18:23:55,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-23 18:23:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 18:23:55,484 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-23 18:23:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 18:23:55,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-23 18:23:55,571 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-11-23 18:23:55,575 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-23 18:23:55,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-23 18:23:55,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 18:23:55,786 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2024-11-23 18:23:55,856 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-23 18:23:55,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:23:55 BoogieIcfgContainer
[2024-11-23 18:23:55,865 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-23 18:23:55,865 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-23 18:23:55,866 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-23 18:23:55,866 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-23 18:23:55,867 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:23:48" (3/4) ...
[2024-11-23 18:23:55,872 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-11-23 18:23:55,873 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-23 18:23:55,874 INFO L158 Benchmark]: Toolchain (without parser) took 8039.16ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 104.3MB in the beginning and 192.9MB in the end (delta: -88.6MB). Peak memory consumption was 103.3MB. Max. memory is 16.1GB.
[2024-11-23 18:23:55,875 INFO L158 Benchmark]: CDTParser took 1.02ms. Allocated memory is still 167.8MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 18:23:55,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.65ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 91.4MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 18:23:55,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.36ms. Allocated memory is still 142.6MB. Free memory was 91.4MB in the beginning and 89.5MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 18:23:55,877 INFO L158 Benchmark]: Boogie Preprocessor took 86.43ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 87.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 18:23:55,877 INFO L158 Benchmark]: RCFGBuilder took 579.47ms. Allocated memory is still 142.6MB. Free memory was 87.1MB in the beginning and 72.7MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-23 18:23:55,878 INFO L158 Benchmark]: TraceAbstraction took 6890.59ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 72.1MB in the beginning and 193.0MB in the end (delta: -120.9MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB.
[2024-11-23 18:23:55,878 INFO L158 Benchmark]: Witness Printer took 7.49ms. Allocated memory is still 335.5MB. Free memory was 193.0MB in the beginning and 192.9MB in the end (delta: 106.0kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 18:23:55,880 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.02ms. Allocated memory is still 167.8MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 391.65ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 91.4MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 73.36ms. Allocated memory is still 142.6MB. Free memory was 91.4MB in the beginning and 89.5MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 86.43ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 87.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 579.47ms. Allocated memory is still 142.6MB. Free memory was 87.1MB in the beginning and 72.7MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 6890.59ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 72.1MB in the beginning and 193.0MB in the end (delta: -120.9MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB.
* Witness Printer took 7.49ms. Allocated memory is still 335.5MB. Free memory was 193.0MB in the beginning and 192.9MB in the end (delta: 106.0kB). 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: 19]: 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 someBinaryDOUBLEComparisonOperation at line 74, overapproximation of someBinaryDOUBLEComparisonOperation at line 85, overapproximation of someBinaryDOUBLEComparisonOperation at line 72, overapproximation of someBinaryDOUBLEComparisonOperation at line 70, overapproximation of someBinaryDOUBLEComparisonOperation at line 39.
Possible FailurePath:
[L21] unsigned char isInitial = 0;
[L22] unsigned short int var_1_1 = 32;
[L23] unsigned char var_1_7 = 1;
[L24] signed char var_1_8 = -32;
[L25] signed char var_1_9 = -8;
[L26] unsigned char var_1_10 = 2;
[L27] double var_1_11 = 15.6;
[L28] double var_1_12 = 15.4;
[L29] double var_1_13 = 32.2;
[L30] unsigned char var_1_14 = 5;
[L31] unsigned short int last_1_var_1_1 = 32;
[L32] signed char last_1_var_1_8 = -32;
[L33] unsigned char last_1_var_1_10 = 2;
VAL [isInitial=0, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=-8]
[L89] isInitial = 1
[L90] FCALL initially()
[L92] CALL updateLastVariables()
[L80] last_1_var_1_1 = var_1_1
[L81] last_1_var_1_8 = var_1_8
[L82] last_1_var_1_10 = var_1_10
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=-8]
[L92] RET updateLastVariables()
[L93] CALL updateVariables()
[L63] var_1_7 = __VERIFIER_nondet_uchar()
[L64] CALL assume_abort_if_not(var_1_7 >= 0)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_8=-32, var_1_9=-8]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_8=-32, var_1_9=-8]
[L64] RET assume_abort_if_not(var_1_7 >= 0)
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_8=-32, var_1_9=-8]
[L65] CALL assume_abort_if_not(var_1_7 <= 1)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=-8]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=-8]
[L65] RET assume_abort_if_not(var_1_7 <= 1)
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=-8]
[L66] var_1_9 = __VERIFIER_nondet_char()
[L67] CALL assume_abort_if_not(var_1_9 >= -126)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L67] RET assume_abort_if_not(var_1_9 >= -126)
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L68] CALL assume_abort_if_not(var_1_9 <= 126)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L68] RET assume_abort_if_not(var_1_9 <= 126)
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L69] var_1_11 = __VERIFIER_nondet_double()
[L70] CALL assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F ))
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L70] RET assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F ))
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L71] var_1_12 = __VERIFIER_nondet_double()
[L72] CALL assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F ))
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L72] RET assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F ))
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L73] var_1_13 = __VERIFIER_nondet_double()
[L74] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F ))
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L74] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F ))
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L75] var_1_14 = __VERIFIER_nondet_uchar()
[L76] CALL assume_abort_if_not(var_1_14 >= 0)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L76] RET assume_abort_if_not(var_1_14 >= 0)
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L77] CALL assume_abort_if_not(var_1_14 <= 254)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=0, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=0, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L77] RET assume_abort_if_not(var_1_14 <= 254)
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=0, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L93] RET updateVariables()
[L94] CALL step()
[L37] signed long int stepLocal_2 = (((last_1_var_1_8) < (last_1_var_1_8)) ? (last_1_var_1_8) : (last_1_var_1_8));
[L38] unsigned char stepLocal_1 = var_1_7;
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, stepLocal_1=1, stepLocal_2=-32, var_1_10=2, var_1_14=0, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L39] COND TRUE ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))) <= var_1_13
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, stepLocal_1=1, stepLocal_2=-32, var_1_10=2, var_1_14=0, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L40] COND FALSE !(stepLocal_1 && (last_1_var_1_8 >= var_1_9))
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, stepLocal_2=-32, var_1_10=2, var_1_14=0, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L48] signed long int stepLocal_0 = ((((- last_1_var_1_10)) > (last_1_var_1_10)) ? ((- last_1_var_1_10)) : (last_1_var_1_10));
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, stepLocal_0=2, stepLocal_2=-32, var_1_10=2, var_1_14=0, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0]
[L49] COND FALSE !(last_1_var_1_10 < stepLocal_0)
[L52] var_1_8 = var_1_9
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, stepLocal_2=-32, var_1_10=2, var_1_14=0, var_1_1=32, var_1_7=1, var_1_8=0, var_1_9=0]
[L54] COND FALSE !((var_1_10 + ((((var_1_10) > (var_1_10)) ? (var_1_10) : (var_1_10)))) < (var_1_10 * var_1_8))
[L59] var_1_1 = var_1_10
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, stepLocal_2=-32, var_1_10=2, var_1_14=0, var_1_1=2, var_1_7=1, var_1_8=0, var_1_9=0]
[L94] RET step()
[L95] CALL, EXPR property()
[L85-L86] return ((((var_1_10 + ((((var_1_10) > (var_1_10)) ? (var_1_10) : (var_1_10)))) < (var_1_10 * var_1_8)) ? (var_1_7 ? (var_1_1 == ((unsigned short int) var_1_10)) : 1) : (var_1_1 == ((unsigned short int) var_1_10))) && ((last_1_var_1_10 < (((((- last_1_var_1_10)) > (last_1_var_1_10)) ? ((- last_1_var_1_10)) : (last_1_var_1_10)))) ? (var_1_8 == ((signed char) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))))) : (var_1_8 == ((signed char) var_1_9)))) && ((((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))) <= var_1_13) ? ((var_1_7 && (last_1_var_1_8 >= var_1_9)) ? ((last_1_var_1_1 <= ((((last_1_var_1_8) < (last_1_var_1_8)) ? (last_1_var_1_8) : (last_1_var_1_8)))) ? (var_1_10 == ((unsigned char) var_1_14)) : 1) : 1) : (var_1_10 == ((unsigned char) var_1_14)))
;
VAL [\result=0, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=0, var_1_1=2, var_1_7=1, var_1_8=0, var_1_9=0]
[L95] RET, EXPR property()
[L95] CALL __VERIFIER_assert(property())
[L19] COND TRUE !(cond)
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=0, var_1_1=2, var_1_7=1, var_1_8=0, var_1_9=0]
[L19] reach_error()
VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=0, var_1_1=2, var_1_7=1, var_1_8=0, var_1_9=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.7s, OverallIterations: 5, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 728 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 482 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 246 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=3, InterpolantAutomatonStates: 20, 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, 4 MinimizatonAttempts, 33 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 451 NumberOfCodeBlocks, 451 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 316 ConstructedInterpolants, 0 QuantifiedInterpolants, 531 SizeOfPredicates, 0 NumberOfNonLiveVariables, 172 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 704/720 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-23 18:23:55,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC --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 7001a99b958cb5a783d624aa4b4b483c2055b6507029df9ffd20f7aa9d768319
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 18:23:59,358 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 18:23:59,538 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-23 18:23:59,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 18:23:59,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 18:23:59,594 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 18:23:59,595 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 18:23:59,596 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 18:23:59,596 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 18:23:59,596 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 18:23:59,597 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 18:23:59,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 18:23:59,597 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 18:23:59,597 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 18:23:59,598 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 18:23:59,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 18:23:59,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 18:23:59,598 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 18:23:59,598 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 18:23:59,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 18:23:59,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 18:23:59,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 18:23:59,599 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 18:23:59,599 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-23 18:23:59,599 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-23 18:23:59,599 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-23 18:23:59,600 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 18:23:59,600 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 18:23:59,600 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 18:23:59,600 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 18:23:59,600 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 18:23:59,600 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 18:23:59,601 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 18:23:59,601 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 18:23:59,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:23:59,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 18:23:59,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 18:23:59,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 18:23:59,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 18:23:59,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:23:59,602 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 18:23:59,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 18:23:59,603 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 18:23:59,603 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 18:23:59,603 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-23 18:23:59,604 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-23 18:23:59,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 18:23:59,604 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 18:23:59,604 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 18:23:59,605 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 18:23:59,605 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_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 7001a99b958cb5a783d624aa4b4b483c2055b6507029df9ffd20f7aa9d768319
[2024-11-23 18:24:00,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 18:24:00,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 18:24:00,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 18:24:00,039 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 18:24:00,040 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 18:24:00,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-21.i
[2024-11-23 18:24:03,694 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/data/25cc0f6fc/712cbf7ceaff4e868dded30546e9a81f/FLAGf315738f9
[2024-11-23 18:24:03,980 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 18:24:03,981 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-21.i
[2024-11-23 18:24:03,992 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/data/25cc0f6fc/712cbf7ceaff4e868dded30546e9a81f/FLAGf315738f9
[2024-11-23 18:24:04,269 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/data/25cc0f6fc/712cbf7ceaff4e868dded30546e9a81f
[2024-11-23 18:24:04,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 18:24:04,274 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 18:24:04,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 18:24:04,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 18:24:04,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 18:24:04,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:24:04" (1/1) ...
[2024-11-23 18:24:04,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60e501ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:04, skipping insertion in model container
[2024-11-23 18:24:04,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:24:04" (1/1) ...
[2024-11-23 18:24:04,306 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 18:24:04,490 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_c2879b9f-a547-45ee-808b-8540a1581ed0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-21.i[915,928]
[2024-11-23 18:24:04,562 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 18:24:04,587 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 18:24:04,600 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_c2879b9f-a547-45ee-808b-8540a1581ed0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-21.i[915,928]
[2024-11-23 18:24:04,628 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 18:24:04,651 INFO L204 MainTranslator]: Completed translation
[2024-11-23 18:24:04,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:04 WrapperNode
[2024-11-23 18:24:04,652 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 18:24:04,653 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 18:24:04,653 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 18:24:04,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 18:24:04,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:04" (1/1) ...
[2024-11-23 18:24:04,672 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:04" (1/1) ...
[2024-11-23 18:24:04,709 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90
[2024-11-23 18:24:04,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 18:24:04,711 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 18:24:04,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 18:24:04,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 18:24:04,721 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:04" (1/1) ...
[2024-11-23 18:24:04,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:04" (1/1) ...
[2024-11-23 18:24:04,725 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:04" (1/1) ...
[2024-11-23 18:24:04,741 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].
[2024-11-23 18:24:04,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:04" (1/1) ...
[2024-11-23 18:24:04,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:04" (1/1) ...
[2024-11-23 18:24:04,752 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:04" (1/1) ...
[2024-11-23 18:24:04,754 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:04" (1/1) ...
[2024-11-23 18:24:04,759 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:04" (1/1) ...
[2024-11-23 18:24:04,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:04" (1/1) ...
[2024-11-23 18:24:04,763 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:04" (1/1) ...
[2024-11-23 18:24:04,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 18:24:04,768 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 18:24:04,768 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 18:24:04,768 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 18:24:04,770 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:04" (1/1) ...
[2024-11-23 18:24:04,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:24:04,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 18:24:04,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 18:24:04,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 18:24:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 18:24:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-23 18:24:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-23 18:24:04,860 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-23 18:24:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 18:24:04,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 18:24:04,989 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 18:24:04,991 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 18:24:05,498 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live.
[2024-11-23 18:24:05,498 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 18:24:05,515 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 18:24:05,516 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-23 18:24:05,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:24:05 BoogieIcfgContainer
[2024-11-23 18:24:05,517 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 18:24:05,523 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 18:24:05,523 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 18:24:05,532 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 18:24:05,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:24:04" (1/3) ...
[2024-11-23 18:24:05,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59fdfc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:24:05, skipping insertion in model container
[2024-11-23 18:24:05,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:04" (2/3) ...
[2024-11-23 18:24:05,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59fdfc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:24:05, skipping insertion in model container
[2024-11-23 18:24:05,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:24:05" (3/3) ...
[2024-11-23 18:24:05,537 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-21.i
[2024-11-23 18:24:05,560 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 18:24:05,562 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-21.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-23 18:24:05,632 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 18:24:05,647 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;@47ad7773, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 18:24:05,647 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-23 18:24:05,652 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-23 18:24:05,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-23 18:24:05,663 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:24:05,664 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:24:05,665 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:24:05,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:24:05,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1174544175, now seen corresponding path program 1 times
[2024-11-23 18:24:05,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 18:24:05,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697104134]
[2024-11-23 18:24:05,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:24:05,685 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
[2024-11-23 18:24:05,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 18:24:05,688 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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)
[2024-11-23 18:24:05,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:24:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:24:05,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-23 18:24:05,900 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:24:05,937 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked.
[2024-11-23 18:24:05,938 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 18:24:05,939 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 18:24:05,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697104134]
[2024-11-23 18:24:05,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [697104134] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:24:05,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:24:05,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 18:24:05,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75406662]
[2024-11-23 18:24:05,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:24:05,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-23 18:24:05,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 18:24:05,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-23 18:24:05,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 18:24:05,976 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-23 18:24:06,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:24:06,002 INFO L93 Difference]: Finished difference Result 75 states and 119 transitions.
[2024-11-23 18:24:06,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 18:24:06,004 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64
[2024-11-23 18:24:06,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:24:06,013 INFO L225 Difference]: With dead ends: 75
[2024-11-23 18:24:06,015 INFO L226 Difference]: Without dead ends: 37
[2024-11-23 18:24:06,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 18:24:06,027 INFO L435 NwaCegarLoop]: 51 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, 51 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
[2024-11-23 18:24:06,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 18:24:06,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2024-11-23 18:24:06,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37.
[2024-11-23 18:24:06,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-23 18:24:06,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions.
[2024-11-23 18:24:06,090 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 64
[2024-11-23 18:24:06,092 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:24:06,092 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions.
[2024-11-23 18:24:06,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-23 18:24:06,093 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions.
[2024-11-23 18:24:06,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-23 18:24:06,098 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:24:06,098 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:24:06,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:24:06,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:24:06,299 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:24:06,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:24:06,300 INFO L85 PathProgramCache]: Analyzing trace with hash -562669323, now seen corresponding path program 1 times
[2024-11-23 18:24:06,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 18:24:06,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512905895]
[2024-11-23 18:24:06,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:24:06,301 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
[2024-11-23 18:24:06,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 18:24:06,303 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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)
[2024-11-23 18:24:06,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:24:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:24:06,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-23 18:24:06,521 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:24:06,884 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-23 18:24:06,885 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 18:24:06,885 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 18:24:06,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512905895]
[2024-11-23 18:24:06,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512905895] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:24:06,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:24:06,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 18:24:06,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786447206]
[2024-11-23 18:24:06,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:24:06,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 18:24:06,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 18:24:06,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 18:24:06,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-23 18:24:06,893 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:24:07,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:24:07,349 INFO L93 Difference]: Finished difference Result 116 states and 161 transitions.
[2024-11-23 18:24:07,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 18:24:07,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64
[2024-11-23 18:24:07,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:24:07,353 INFO L225 Difference]: With dead ends: 116
[2024-11-23 18:24:07,353 INFO L226 Difference]: Without dead ends: 82
[2024-11-23 18:24:07,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-23 18:24:07,355 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 45 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-23 18:24:07,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 167 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-23 18:24:07,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2024-11-23 18:24:07,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 71.
[2024-11-23 18:24:07,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 50 states have (on average 1.26) internal successors, (63), 50 states have internal predecessors, (63), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-23 18:24:07,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions.
[2024-11-23 18:24:07,379 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 64
[2024-11-23 18:24:07,379 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:24:07,379 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions.
[2024-11-23 18:24:07,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:24:07,380 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions.
[2024-11-23 18:24:07,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-23 18:24:07,382 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:24:07,382 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:24:07,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:24:07,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:24:07,586 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:24:07,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:24:07,587 INFO L85 PathProgramCache]: Analyzing trace with hash -505411021, now seen corresponding path program 1 times
[2024-11-23 18:24:07,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 18:24:07,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819009662]
[2024-11-23 18:24:07,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:24:07,588 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
[2024-11-23 18:24:07,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 18:24:07,592 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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)
[2024-11-23 18:24:07,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (4)] Waiting until timeout for monitored process
[2024-11-23 18:24:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:24:07,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-23 18:24:07,792 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:24:47,677 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-23 18:24:47,678 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 18:24:47,679 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 18:24:47,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819009662]
[2024-11-23 18:24:47,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819009662] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:24:47,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:24:47,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-23 18:24:47,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285242375]
[2024-11-23 18:24:47,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:24:47,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-23 18:24:47,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 18:24:47,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-23 18:24:47,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-11-23 18:24:47,684 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:24:48,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:24:48,392 INFO L93 Difference]: Finished difference Result 124 states and 167 transitions.
[2024-11-23 18:24:48,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-23 18:24:48,395 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64
[2024-11-23 18:24:48,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:24:48,396 INFO L225 Difference]: With dead ends: 124
[2024-11-23 18:24:48,397 INFO L226 Difference]: Without dead ends: 122
[2024-11-23 18:24:48,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132
[2024-11-23 18:24:48,398 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 64 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-23 18:24:48,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 215 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-23 18:24:48,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states.
[2024-11-23 18:24:48,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 101.
[2024-11-23 18:24:48,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 70 states have internal predecessors, (87), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-23 18:24:48,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 141 transitions.
[2024-11-23 18:24:48,421 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 141 transitions. Word has length 64
[2024-11-23 18:24:48,421 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:24:48,421 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 141 transitions.
[2024-11-23 18:24:48,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:24:48,422 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 141 transitions.
[2024-11-23 18:24:48,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2024-11-23 18:24:48,425 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:24:48,425 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:24:48,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (4)] Forceful destruction successful, exit code 0
[2024-11-23 18:24:48,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:24:48,626 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:24:48,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:24:48,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1278414269, now seen corresponding path program 1 times
[2024-11-23 18:24:48,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 18:24:48,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067234407]
[2024-11-23 18:24:48,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:24:48,627 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
[2024-11-23 18:24:48,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 18:24:48,631 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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)
[2024-11-23 18:24:48,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (5)] Waiting until timeout for monitored process
[2024-11-23 18:24:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:24:48,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-23 18:24:48,773 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:25:04,239 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-23 18:25:04,239 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 18:25:04,240 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 18:25:04,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067234407]
[2024-11-23 18:25:04,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067234407] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:25:04,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:25:04,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-23 18:25:04,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332802169]
[2024-11-23 18:25:04,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:25:04,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-23 18:25:04,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 18:25:04,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-23 18:25:04,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2024-11-23 18:25:04,242 INFO L87 Difference]: Start difference. First operand 101 states and 141 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:25:04,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:25:04,881 INFO L93 Difference]: Finished difference Result 129 states and 172 transitions.
[2024-11-23 18:25:04,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-23 18:25:04,884 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 65
[2024-11-23 18:25:04,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:25:04,886 INFO L225 Difference]: With dead ends: 129
[2024-11-23 18:25:04,886 INFO L226 Difference]: Without dead ends: 127
[2024-11-23 18:25:04,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156
[2024-11-23 18:25:04,888 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 62 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-23 18:25:04,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 225 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-23 18:25:04,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states.
[2024-11-23 18:25:04,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 102.
[2024-11-23 18:25:04,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 71 states have internal predecessors, (89), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-23 18:25:04,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 143 transitions.
[2024-11-23 18:25:04,911 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 143 transitions. Word has length 65
[2024-11-23 18:25:04,911 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:25:04,911 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 143 transitions.
[2024-11-23 18:25:04,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:25:04,912 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 143 transitions.
[2024-11-23 18:25:04,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2024-11-23 18:25:04,913 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:25:04,913 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:25:04,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (5)] Ended with exit code 0
[2024-11-23 18:25:05,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:25:05,114 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:25:05,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:25:05,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1276567227, now seen corresponding path program 1 times
[2024-11-23 18:25:05,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 18:25:05,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1603783065]
[2024-11-23 18:25:05,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:25:05,115 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
[2024-11-23 18:25:05,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 18:25:05,117 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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)
[2024-11-23 18:25:05,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (6)] Waiting until timeout for monitored process
[2024-11-23 18:25:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:25:05,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-23 18:25:05,242 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:25:36,432 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-23 18:25:36,432 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 18:25:36,432 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 18:25:36,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1603783065]
[2024-11-23 18:25:36,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1603783065] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:25:36,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:25:36,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-23 18:25:36,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375160637]
[2024-11-23 18:25:36,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:25:36,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-23 18:25:36,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 18:25:36,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-23 18:25:36,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2024-11-23 18:25:36,435 INFO L87 Difference]: Start difference. First operand 102 states and 143 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:25:37,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:25:37,141 INFO L93 Difference]: Finished difference Result 127 states and 170 transitions.
[2024-11-23 18:25:37,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-23 18:25:37,144 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 65
[2024-11-23 18:25:37,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:25:37,145 INFO L225 Difference]: With dead ends: 127
[2024-11-23 18:25:37,146 INFO L226 Difference]: Without dead ends: 125
[2024-11-23 18:25:37,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156
[2024-11-23 18:25:37,151 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 54 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-23 18:25:37,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 232 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-23 18:25:37,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states.
[2024-11-23 18:25:37,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 102.
[2024-11-23 18:25:37,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 71 states have internal predecessors, (89), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-23 18:25:37,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 143 transitions.
[2024-11-23 18:25:37,184 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 143 transitions. Word has length 65
[2024-11-23 18:25:37,185 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:25:37,185 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 143 transitions.
[2024-11-23 18:25:37,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:25:37,186 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 143 transitions.
[2024-11-23 18:25:37,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2024-11-23 18:25:37,187 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:25:37,187 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:25:37,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (6)] Ended with exit code 0
[2024-11-23 18:25:37,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:25:37,389 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:25:37,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:25:37,389 INFO L85 PathProgramCache]: Analyzing trace with hash 434558742, now seen corresponding path program 1 times
[2024-11-23 18:25:37,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 18:25:37,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60836123]
[2024-11-23 18:25:37,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:25:37,391 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
[2024-11-23 18:25:37,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 18:25:37,394 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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)
[2024-11-23 18:25:37,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (7)] Waiting until timeout for monitored process
[2024-11-23 18:25:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:25:37,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-23 18:25:37,531 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:26:08,833 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-23 18:26:08,834 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 18:26:08,834 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 18:26:08,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60836123]
[2024-11-23 18:26:08,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [60836123] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:26:08,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:26:08,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-23 18:26:08,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292684996]
[2024-11-23 18:26:08,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:26:08,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-23 18:26:08,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 18:26:08,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-23 18:26:08,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-11-23 18:26:08,835 INFO L87 Difference]: Start difference. First operand 102 states and 143 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:26:10,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:26:10,422 INFO L93 Difference]: Finished difference Result 124 states and 166 transitions.
[2024-11-23 18:26:10,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-23 18:26:10,423 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 65
[2024-11-23 18:26:10,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:26:10,424 INFO L225 Difference]: With dead ends: 124
[2024-11-23 18:26:10,424 INFO L226 Difference]: Without dead ends: 122
[2024-11-23 18:26:10,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156
[2024-11-23 18:26:10,426 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 49 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-23 18:26:10,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 240 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-23 18:26:10,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states.
[2024-11-23 18:26:10,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 112.
[2024-11-23 18:26:10,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 80 states have (on average 1.2375) internal successors, (99), 80 states have internal predecessors, (99), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-23 18:26:10,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 153 transitions.
[2024-11-23 18:26:10,460 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 153 transitions. Word has length 65
[2024-11-23 18:26:10,460 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:26:10,460 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 153 transitions.
[2024-11-23 18:26:10,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:26:10,465 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 153 transitions.
[2024-11-23 18:26:10,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2024-11-23 18:26:10,466 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:26:10,466 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:26:10,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (7)] Ended with exit code 0
[2024-11-23 18:26:10,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:26:10,667 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:26:10,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:26:10,667 INFO L85 PathProgramCache]: Analyzing trace with hash 352705850, now seen corresponding path program 1 times
[2024-11-23 18:26:10,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 18:26:10,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714612351]
[2024-11-23 18:26:10,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:26:10,668 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
[2024-11-23 18:26:10,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 18:26:10,671 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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)
[2024-11-23 18:26:10,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (8)] Waiting until timeout for monitored process
[2024-11-23 18:26:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:26:10,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-23 18:26:10,807 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:26:28,244 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-23 18:26:28,244 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 18:26:28,244 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 18:26:28,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714612351]
[2024-11-23 18:26:28,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [714612351] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:26:28,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:26:28,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-23 18:26:28,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262411254]
[2024-11-23 18:26:28,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:26:28,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-23 18:26:28,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 18:26:28,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-23 18:26:28,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2024-11-23 18:26:28,247 INFO L87 Difference]: Start difference. First operand 112 states and 153 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:26:29,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:26:29,926 INFO L93 Difference]: Finished difference Result 129 states and 171 transitions.
[2024-11-23 18:26:29,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-23 18:26:29,927 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 66
[2024-11-23 18:26:29,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:26:29,929 INFO L225 Difference]: With dead ends: 129
[2024-11-23 18:26:29,929 INFO L226 Difference]: Without dead ends: 127
[2024-11-23 18:26:29,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182
[2024-11-23 18:26:29,930 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 56 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-23 18:26:29,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 267 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-23 18:26:29,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states.
[2024-11-23 18:26:29,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 113.
[2024-11-23 18:26:29,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 81 states have (on average 1.2469135802469136) internal successors, (101), 81 states have internal predecessors, (101), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-23 18:26:29,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 155 transitions.
[2024-11-23 18:26:29,960 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 155 transitions. Word has length 66
[2024-11-23 18:26:29,961 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:26:29,961 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 155 transitions.
[2024-11-23 18:26:29,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:26:29,961 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 155 transitions.
[2024-11-23 18:26:29,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2024-11-23 18:26:29,962 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:26:29,963 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:26:29,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (8)] Forceful destruction successful, exit code 0
[2024-11-23 18:26:30,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:26:30,163 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:26:30,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:26:30,164 INFO L85 PathProgramCache]: Analyzing trace with hash 350858808, now seen corresponding path program 1 times
[2024-11-23 18:26:30,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 18:26:30,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326993]
[2024-11-23 18:26:30,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:26:30,165 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
[2024-11-23 18:26:30,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 18:26:30,169 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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)
[2024-11-23 18:26:30,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (9)] Waiting until timeout for monitored process
[2024-11-23 18:26:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:26:30,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-23 18:26:30,271 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:27:00,647 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2024-11-23 18:27:00,647 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 18:27:00,647 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 18:27:00,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326993]
[2024-11-23 18:27:00,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326993] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:27:00,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:27:00,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-23 18:27:00,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830592234]
[2024-11-23 18:27:00,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:27:00,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-23 18:27:00,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 18:27:00,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-23 18:27:00,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2024-11-23 18:27:00,649 INFO L87 Difference]: Start difference. First operand 113 states and 155 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:27:02,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:27:02,458 INFO L93 Difference]: Finished difference Result 127 states and 169 transitions.
[2024-11-23 18:27:02,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-23 18:27:02,459 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 66
[2024-11-23 18:27:02,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:27:02,461 INFO L225 Difference]: With dead ends: 127
[2024-11-23 18:27:02,461 INFO L226 Difference]: Without dead ends: 125
[2024-11-23 18:27:02,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182
[2024-11-23 18:27:02,462 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 57 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-23 18:27:02,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 275 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-23 18:27:02,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states.
[2024-11-23 18:27:02,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 113.
[2024-11-23 18:27:02,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 81 states have (on average 1.2469135802469136) internal successors, (101), 81 states have internal predecessors, (101), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-23 18:27:02,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 155 transitions.
[2024-11-23 18:27:02,478 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 155 transitions. Word has length 66
[2024-11-23 18:27:02,479 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:27:02,479 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 155 transitions.
[2024-11-23 18:27:02,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:27:02,479 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 155 transitions.
[2024-11-23 18:27:02,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-11-23 18:27:02,481 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:27:02,482 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:27:02,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (9)] Ended with exit code 0
[2024-11-23 18:27:02,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:27:02,682 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:27:02,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:27:02,683 INFO L85 PathProgramCache]: Analyzing trace with hash -154222686, now seen corresponding path program 1 times
[2024-11-23 18:27:02,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 18:27:02,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588751598]
[2024-11-23 18:27:02,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:27:02,683 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
[2024-11-23 18:27:02,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 18:27:02,686 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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)
[2024-11-23 18:27:02,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (10)] Waiting until timeout for monitored process
[2024-11-23 18:27:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:27:02,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-23 18:27:02,849 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:27:02,882 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked.
[2024-11-23 18:27:02,882 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 18:27:02,882 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 18:27:02,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588751598]
[2024-11-23 18:27:02,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588751598] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:27:02,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:27:02,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 18:27:02,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684106448]
[2024-11-23 18:27:02,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:27:02,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 18:27:02,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 18:27:02,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 18:27:02,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-23 18:27:02,884 INFO L87 Difference]: Start difference. First operand 113 states and 155 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:27:03,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:27:03,079 INFO L93 Difference]: Finished difference Result 175 states and 240 transitions.
[2024-11-23 18:27:03,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 18:27:03,080 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), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 125
[2024-11-23 18:27:03,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:27:03,082 INFO L225 Difference]: With dead ends: 175
[2024-11-23 18:27:03,082 INFO L226 Difference]: Without dead ends: 141
[2024-11-23 18:27:03,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-23 18:27:03,083 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 34 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-23 18:27:03,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 153 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-23 18:27:03,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states.
[2024-11-23 18:27:03,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 136.
[2024-11-23 18:27:03,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 96 states have (on average 1.2395833333333333) internal successors, (119), 97 states have internal predecessors, (119), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-23 18:27:03,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 187 transitions.
[2024-11-23 18:27:03,111 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 187 transitions. Word has length 125
[2024-11-23 18:27:03,112 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:27:03,113 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 187 transitions.
[2024-11-23 18:27:03,113 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), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:27:03,113 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 187 transitions.
[2024-11-23 18:27:03,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-11-23 18:27:03,115 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:27:03,115 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:27:03,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (10)] Ended with exit code 0
[2024-11-23 18:27:03,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:27:03,316 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:27:03,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:27:03,316 INFO L85 PathProgramCache]: Analyzing trace with hash -96964384, now seen corresponding path program 1 times
[2024-11-23 18:27:03,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 18:27:03,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690548281]
[2024-11-23 18:27:03,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:27:03,317 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
[2024-11-23 18:27:03,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 18:27:03,319 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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)
[2024-11-23 18:27:03,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (11)] Waiting until timeout for monitored process
[2024-11-23 18:27:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:27:03,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-23 18:27:03,497 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:31:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked.
[2024-11-23 18:31:01,947 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 18:31:01,947 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 18:31:01,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [690548281]
[2024-11-23 18:31:01,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [690548281] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:31:01,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:31:01,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-23 18:31:01,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219194749]
[2024-11-23 18:31:01,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:31:01,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-23 18:31:01,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 18:31:01,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-23 18:31:01,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-23 18:31:01,949 INFO L87 Difference]: Start difference. First operand 136 states and 187 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:31:02,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:31:02,571 INFO L93 Difference]: Finished difference Result 161 states and 211 transitions.
[2024-11-23 18:31:02,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-23 18:31:02,571 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 125
[2024-11-23 18:31:02,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:31:02,573 INFO L225 Difference]: With dead ends: 161
[2024-11-23 18:31:02,574 INFO L226 Difference]: Without dead ends: 159
[2024-11-23 18:31:02,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72
[2024-11-23 18:31:02,575 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 49 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-23 18:31:02,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 321 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-23 18:31:02,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states.
[2024-11-23 18:31:02,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 140.
[2024-11-23 18:31:02,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 99 states have (on average 1.2323232323232323) internal successors, (122), 100 states have internal predecessors, (122), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-23 18:31:02,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions.
[2024-11-23 18:31:02,595 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 125
[2024-11-23 18:31:02,596 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:31:02,596 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions.
[2024-11-23 18:31:02,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:31:02,596 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions.
[2024-11-23 18:31:02,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127
[2024-11-23 18:31:02,598 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:31:02,599 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:31:02,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (11)] Forceful destruction successful, exit code 0
[2024-11-23 18:31:02,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:31:02,799 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:31:02,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:31:02,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1055358128, now seen corresponding path program 1 times
[2024-11-23 18:31:02,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 18:31:02,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335699894]
[2024-11-23 18:31:02,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:31:02,801 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
[2024-11-23 18:31:02,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 18:31:02,803 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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)
[2024-11-23 18:31:02,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (12)] Waiting until timeout for monitored process
[2024-11-23 18:31:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:31:02,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-23 18:31:02,984 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:32:26,021 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked.
[2024-11-23 18:32:26,021 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 18:32:26,022 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 18:32:26,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335699894]
[2024-11-23 18:32:26,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335699894] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:32:26,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:32:26,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-23 18:32:26,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441951474]
[2024-11-23 18:32:26,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:32:26,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-23 18:32:26,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 18:32:26,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-23 18:32:26,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-23 18:32:26,023 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:32:26,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:32:26,606 INFO L93 Difference]: Finished difference Result 167 states and 217 transitions.
[2024-11-23 18:32:26,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-23 18:32:26,608 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 126
[2024-11-23 18:32:26,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:32:26,610 INFO L225 Difference]: With dead ends: 167
[2024-11-23 18:32:26,610 INFO L226 Difference]: Without dead ends: 165
[2024-11-23 18:32:26,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2024-11-23 18:32:26,611 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 56 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-23 18:32:26,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 334 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-23 18:32:26,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states.
[2024-11-23 18:32:26,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 140.
[2024-11-23 18:32:26,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 99 states have (on average 1.2323232323232323) internal successors, (122), 100 states have internal predecessors, (122), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-23 18:32:26,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions.
[2024-11-23 18:32:26,644 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 126
[2024-11-23 18:32:26,645 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:32:26,645 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions.
[2024-11-23 18:32:26,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:32:26,645 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions.
[2024-11-23 18:32:26,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127
[2024-11-23 18:32:26,648 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:32:26,649 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:32:26,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (12)] Forceful destruction successful, exit code 0
[2024-11-23 18:32:26,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:32:26,849 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:32:26,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:32:26,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1053511086, now seen corresponding path program 1 times
[2024-11-23 18:32:26,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 18:32:26,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246287675]
[2024-11-23 18:32:26,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:32:26,850 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
[2024-11-23 18:32:26,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 18:32:26,852 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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)
[2024-11-23 18:32:26,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (13)] Waiting until timeout for monitored process
[2024-11-23 18:32:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:32:27,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-23 18:32:27,055 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:36:36,268 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked.
[2024-11-23 18:36:36,268 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 18:36:36,269 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 18:36:36,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246287675]
[2024-11-23 18:36:36,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246287675] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:36:36,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:36:36,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-23 18:36:36,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653636381]
[2024-11-23 18:36:36,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:36:36,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-23 18:36:36,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 18:36:36,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-23 18:36:36,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-23 18:36:36,270 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:36:36,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:36:36,732 INFO L93 Difference]: Finished difference Result 169 states and 220 transitions.
[2024-11-23 18:36:36,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-23 18:36:36,733 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 126
[2024-11-23 18:36:36,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:36:36,735 INFO L225 Difference]: With dead ends: 169
[2024-11-23 18:36:36,735 INFO L226 Difference]: Without dead ends: 167
[2024-11-23 18:36:36,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2024-11-23 18:36:36,736 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 70 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-23 18:36:36,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 328 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-23 18:36:36,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states.
[2024-11-23 18:36:36,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 133.
[2024-11-23 18:36:36,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 93 states have internal predecessors, (112), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-23 18:36:36,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 180 transitions.
[2024-11-23 18:36:36,750 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 180 transitions. Word has length 126
[2024-11-23 18:36:36,751 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:36:36,751 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 180 transitions.
[2024-11-23 18:36:36,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:36:36,751 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 180 transitions.
[2024-11-23 18:36:36,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127
[2024-11-23 18:36:36,753 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:36:36,753 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:36:36,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (13)] Forceful destruction successful, exit code 0
[2024-11-23 18:36:36,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:36:36,954 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:36:36,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:36:36,954 INFO L85 PathProgramCache]: Analyzing trace with hash 154244299, now seen corresponding path program 1 times
[2024-11-23 18:36:36,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 18:36:36,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452016795]
[2024-11-23 18:36:36,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:36:36,955 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
[2024-11-23 18:36:36,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 18:36:36,956 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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)
[2024-11-23 18:36:36,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (14)] Waiting until timeout for monitored process
[2024-11-23 18:36:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:36:37,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-23 18:36:37,115 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 18:36:37,137 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 631 trivial. 0 not checked.
[2024-11-23 18:36:37,138 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 18:36:37,138 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 18:36:37,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452016795]
[2024-11-23 18:36:37,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452016795] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:36:37,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:36:37,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 18:36:37,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111787328]
[2024-11-23 18:36:37,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:36:37,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 18:36:37,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 18:36:37,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 18:36:37,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 18:36:37,139 INFO L87 Difference]: Start difference. First operand 133 states and 180 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:36:37,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:36:37,182 INFO L93 Difference]: Finished difference Result 196 states and 264 transitions.
[2024-11-23 18:36:37,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 18:36:37,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 126
[2024-11-23 18:36:37,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:36:37,188 INFO L225 Difference]: With dead ends: 196
[2024-11-23 18:36:37,188 INFO L226 Difference]: Without dead ends: 133
[2024-11-23 18:36:37,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 18:36:37,189 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 18:36:37,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 18:36:37,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states.
[2024-11-23 18:36:37,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 101.
[2024-11-23 18:36:37,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 71 states have internal predecessors, (83), 25 states have call successors, (25), 5 states have call predecessors, (25), 5 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25)
[2024-11-23 18:36:37,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 133 transitions.
[2024-11-23 18:36:37,201 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 133 transitions. Word has length 126
[2024-11-23 18:36:37,201 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:36:37,201 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 133 transitions.
[2024-11-23 18:36:37,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)
[2024-11-23 18:36:37,202 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 133 transitions.
[2024-11-23 18:36:37,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127
[2024-11-23 18:36:37,203 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 18:36:37,203 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:36:37,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (14)] Forceful destruction successful, exit code 0
[2024-11-23 18:36:37,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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
[2024-11-23 18:36:37,404 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:36:37,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:36:37,405 INFO L85 PathProgramCache]: Analyzing trace with hash 211502601, now seen corresponding path program 1 times
[2024-11-23 18:36:37,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 18:36:37,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195180565]
[2024-11-23 18:36:37,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:36:37,405 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
[2024-11-23 18:36:37,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/mathsat
[2024-11-23 18:36:37,408 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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)
[2024-11-23 18:36:37,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2879b9f-a547-45ee-808b-8540a1581ed0/bin/uautomizer-verify-LYvppIcaGC/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 (15)] Waiting until timeout for monitored process
[2024-11-23 18:36:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:36:37,632 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-23 18:36:37,636 INFO L279 TraceCheckSpWp]: Computing forward predicates...