./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-25.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_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/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_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/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_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/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 3bdf6e87ddd4e3fa9d4912c40adec3bde1bcd5c66861b555d5b25f0cfae6651f
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 01:17:58,297 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 01:17:58,418 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-24 01:17:58,424 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 01:17:58,425 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 01:17:58,463 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 01:17:58,464 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 01:17:58,464 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 01:17:58,466 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 01:17:58,466 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 01:17:58,467 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 01:17:58,467 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 01:17:58,468 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 01:17:58,468 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 01:17:58,469 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 01:17:58,469 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 01:17:58,469 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-24 01:17:58,469 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 01:17:58,469 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 01:17:58,469 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 01:17:58,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 01:17:58,469 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 01:17:58,470 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 01:17:58,470 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 01:17:58,470 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 01:17:58,470 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-24 01:17:58,470 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 01:17:58,470 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 01:17:58,470 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 01:17:58,470 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:17:58,471 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:17:58,472 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:17:58,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:17:58,472 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 01:17:58,472 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:17:58,472 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:17:58,472 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:17:58,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:17:58,473 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 01:17:58,473 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 01:17:58,473 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-24 01:17:58,473 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 01:17:58,473 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 01:17:58,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 01:17:58,474 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 01:17:58,474 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 01:17:58,474 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 01:17:58,474 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 01:17:58,474 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_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/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 -> 3bdf6e87ddd4e3fa9d4912c40adec3bde1bcd5c66861b555d5b25f0cfae6651f
[2024-11-24 01:17:58,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 01:17:58,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 01:17:58,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 01:17:58,838 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 01:17:58,839 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 01:17:58,840 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-25.i
[2024-11-24 01:18:02,735 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/data/cfaafc2b1/9523c7419c6a4dbbaea4f4092bb7cdad/FLAGf810d628c
[2024-11-24 01:18:03,062 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 01:18:03,062 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-25.i
[2024-11-24 01:18:03,072 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/data/cfaafc2b1/9523c7419c6a4dbbaea4f4092bb7cdad/FLAGf810d628c
[2024-11-24 01:18:03,364 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/data/cfaafc2b1/9523c7419c6a4dbbaea4f4092bb7cdad
[2024-11-24 01:18:03,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 01:18:03,368 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 01:18:03,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 01:18:03,370 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 01:18:03,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 01:18:03,376 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:18:03" (1/1) ...
[2024-11-24 01:18:03,377 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55fc6545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:03, skipping insertion in model container
[2024-11-24 01:18:03,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:18:03" (1/1) ...
[2024-11-24 01:18:03,402 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 01:18:03,638 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_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-25.i[915,928]
[2024-11-24 01:18:03,724 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:18:03,746 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 01:18:03,764 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_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-25.i[915,928]
[2024-11-24 01:18:03,810 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:18:03,846 INFO L204 MainTranslator]: Completed translation
[2024-11-24 01:18:03,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:03 WrapperNode
[2024-11-24 01:18:03,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 01:18:03,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 01:18:03,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 01:18:03,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 01:18:03,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:03" (1/1) ...
[2024-11-24 01:18:03,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:03" (1/1) ...
[2024-11-24 01:18:03,930 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 129
[2024-11-24 01:18:03,934 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 01:18:03,935 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 01:18:03,935 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 01:18:03,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 01:18:03,950 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:03" (1/1) ...
[2024-11-24 01:18:03,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:03" (1/1) ...
[2024-11-24 01:18:03,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:03" (1/1) ...
[2024-11-24 01:18:03,983 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].
[2024-11-24 01:18:03,983 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:03" (1/1) ...
[2024-11-24 01:18:03,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:03" (1/1) ...
[2024-11-24 01:18:03,993 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:03" (1/1) ...
[2024-11-24 01:18:03,994 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:03" (1/1) ...
[2024-11-24 01:18:03,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:03" (1/1) ...
[2024-11-24 01:18:04,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:03" (1/1) ...
[2024-11-24 01:18:04,001 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:03" (1/1) ...
[2024-11-24 01:18:04,004 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 01:18:04,005 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 01:18:04,005 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 01:18:04,006 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 01:18:04,007 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:03" (1/1) ...
[2024-11-24 01:18:04,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:18:04,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:18:04,055 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 01:18:04,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 01:18:04,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 01:18:04,087 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-24 01:18:04,087 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-24 01:18:04,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 01:18:04,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 01:18:04,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 01:18:04,184 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 01:18:04,186 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 01:18:04,512 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live.
[2024-11-24 01:18:04,513 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 01:18:04,530 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 01:18:04,530 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-24 01:18:04,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:18:04 BoogieIcfgContainer
[2024-11-24 01:18:04,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 01:18:04,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 01:18:04,534 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 01:18:04,541 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 01:18:04,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:18:03" (1/3) ...
[2024-11-24 01:18:04,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc3825f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:18:04, skipping insertion in model container
[2024-11-24 01:18:04,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:03" (2/3) ...
[2024-11-24 01:18:04,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc3825f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:18:04, skipping insertion in model container
[2024-11-24 01:18:04,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:18:04" (3/3) ...
[2024-11-24 01:18:04,544 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-25.i
[2024-11-24 01:18:04,559 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 01:18:04,561 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-25.i that has 2 procedures, 59 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-24 01:18:04,636 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 01:18:04,652 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;@5970047f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 01:18:04,652 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-24 01:18:04,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 34 states have internal predecessors, (42), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2024-11-24 01:18:04,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2024-11-24 01:18:04,672 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:18:04,673 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:18:04,674 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:18:04,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:18:04,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1411930797, now seen corresponding path program 1 times
[2024-11-24 01:18:04,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:18:04,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266083225]
[2024-11-24 01:18:04,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:18:04,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:18:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:18:05,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked.
[2024-11-24 01:18:05,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:18:05,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266083225]
[2024-11-24 01:18:05,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266083225] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:18:05,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93195268]
[2024-11-24 01:18:05,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:18:05,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:18:05,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:18:05,137 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:18:05,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-24 01:18:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:18:05,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-24 01:18:05,398 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:18:05,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked.
[2024-11-24 01:18:05,440 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:18:05,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93195268] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:18:05,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 01:18:05,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-24 01:18:05,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996791302]
[2024-11-24 01:18:05,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:18:05,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-24 01:18:05,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:18:05,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-24 01:18:05,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-24 01:18:05,477 INFO L87 Difference]: Start difference. First operand has 59 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 34 states have internal predecessors, (42), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23)
[2024-11-24 01:18:05,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:18:05,518 INFO L93 Difference]: Finished difference Result 115 states and 196 transitions.
[2024-11-24 01:18:05,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-24 01:18:05,521 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 140
[2024-11-24 01:18:05,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:18:05,529 INFO L225 Difference]: With dead ends: 115
[2024-11-24 01:18:05,529 INFO L226 Difference]: Without dead ends: 55
[2024-11-24 01:18:05,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-24 01:18:05,537 INFO L435 NwaCegarLoop]: 85 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, 85 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
[2024-11-24 01:18:05,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:18:05,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2024-11-24 01:18:05,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55.
[2024-11-24 01:18:05,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23)
[2024-11-24 01:18:05,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 81 transitions.
[2024-11-24 01:18:05,591 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 81 transitions. Word has length 140
[2024-11-24 01:18:05,591 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:18:05,591 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 81 transitions.
[2024-11-24 01:18:05,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23)
[2024-11-24 01:18:05,592 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 81 transitions.
[2024-11-24 01:18:05,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2024-11-24 01:18:05,598 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:18:05,598 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:18:05,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-24 01:18:05,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-24 01:18:05,800 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:18:05,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:18:05,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1155744145, now seen corresponding path program 1 times
[2024-11-24 01:18:05,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:18:05,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660400405]
[2024-11-24 01:18:05,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:18:05,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:18:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:18:10,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2024-11-24 01:18:10,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:18:10,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660400405]
[2024-11-24 01:18:10,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660400405] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:18:10,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:18:10,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-24 01:18:10,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165065113]
[2024-11-24 01:18:10,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:18:10,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-24 01:18:10,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:18:10,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-24 01:18:10,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-24 01:18:10,886 INFO L87 Difference]: Start difference. First operand 55 states and 81 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-24 01:18:12,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:18:12,863 INFO L93 Difference]: Finished difference Result 94 states and 126 transitions.
[2024-11-24 01:18:12,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-24 01:18:12,865 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140
[2024-11-24 01:18:12,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:18:12,870 INFO L225 Difference]: With dead ends: 94
[2024-11-24 01:18:12,873 INFO L226 Difference]: Without dead ends: 92
[2024-11-24 01:18:12,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90
[2024-11-24 01:18:12,875 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 36 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-24 01:18:12,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 501 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-24 01:18:12,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2024-11-24 01:18:12,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 74.
[2024-11-24 01:18:12,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 45 states have internal predecessors, (51), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-24 01:18:12,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions.
[2024-11-24 01:18:12,924 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 140
[2024-11-24 01:18:12,927 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:18:12,927 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions.
[2024-11-24 01:18:12,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-24 01:18:12,928 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions.
[2024-11-24 01:18:12,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2024-11-24 01:18:12,933 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:18:12,934 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:18:12,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 01:18:12,935 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:18:12,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:18:12,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1153897103, now seen corresponding path program 1 times
[2024-11-24 01:18:12,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:18:12,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493004238]
[2024-11-24 01:18:12,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:18:12,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:18:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:18:21,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2024-11-24 01:18:21,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:18:21,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493004238]
[2024-11-24 01:18:21,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493004238] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:18:21,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:18:21,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-24 01:18:21,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397655660]
[2024-11-24 01:18:21,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:18:21,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-24 01:18:21,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:18:21,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-24 01:18:21,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-11-24 01:18:21,019 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-24 01:18:24,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:18:24,074 INFO L93 Difference]: Finished difference Result 91 states and 123 transitions.
[2024-11-24 01:18:24,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-24 01:18:24,076 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140
[2024-11-24 01:18:24,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:18:24,079 INFO L225 Difference]: With dead ends: 91
[2024-11-24 01:18:24,079 INFO L226 Difference]: Without dead ends: 89
[2024-11-24 01:18:24,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132
[2024-11-24 01:18:24,081 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 29 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:18:24,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 469 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-24 01:18:24,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states.
[2024-11-24 01:18:24,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 77.
[2024-11-24 01:18:24,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 47 states have (on average 1.148936170212766) internal successors, (54), 48 states have internal predecessors, (54), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-24 01:18:24,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions.
[2024-11-24 01:18:24,112 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 108 transitions. Word has length 140
[2024-11-24 01:18:24,113 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:18:24,115 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 108 transitions.
[2024-11-24 01:18:24,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-24 01:18:24,115 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 108 transitions.
[2024-11-24 01:18:24,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2024-11-24 01:18:24,121 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:18:24,121 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:18:24,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-24 01:18:24,122 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:18:24,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:18:24,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1098485843, now seen corresponding path program 1 times
[2024-11-24 01:18:24,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:18:24,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202653924]
[2024-11-24 01:18:24,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:18:24,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:18:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:18:26,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2024-11-24 01:18:26,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:18:26,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202653924]
[2024-11-24 01:18:26,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202653924] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:18:26,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:18:26,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-24 01:18:26,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723104191]
[2024-11-24 01:18:26,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:18:26,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-24 01:18:26,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:18:26,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-24 01:18:26,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-24 01:18:26,548 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-24 01:18:27,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:18:27,200 INFO L93 Difference]: Finished difference Result 108 states and 143 transitions.
[2024-11-24 01:18:27,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-24 01:18:27,201 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140
[2024-11-24 01:18:27,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:18:27,205 INFO L225 Difference]: With dead ends: 108
[2024-11-24 01:18:27,205 INFO L226 Difference]: Without dead ends: 106
[2024-11-24 01:18:27,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90
[2024-11-24 01:18:27,206 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 36 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-24 01:18:27,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 477 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-24 01:18:27,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states.
[2024-11-24 01:18:27,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 78.
[2024-11-24 01:18:27,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 49 states have internal predecessors, (56), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-24 01:18:27,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions.
[2024-11-24 01:18:27,238 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 140
[2024-11-24 01:18:27,239 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:18:27,239 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions.
[2024-11-24 01:18:27,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-24 01:18:27,239 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions.
[2024-11-24 01:18:27,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2024-11-24 01:18:27,241 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:18:27,241 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:18:27,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-24 01:18:27,242 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:18:27,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:18:27,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1096638801, now seen corresponding path program 1 times
[2024-11-24 01:18:27,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:18:27,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337277550]
[2024-11-24 01:18:27,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:18:27,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:18:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:18:29,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2024-11-24 01:18:29,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:18:29,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337277550]
[2024-11-24 01:18:29,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337277550] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:18:29,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:18:29,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-24 01:18:29,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897098715]
[2024-11-24 01:18:29,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:18:29,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-24 01:18:29,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:18:29,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-24 01:18:29,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2024-11-24 01:18:29,230 INFO L87 Difference]: Start difference. First operand 78 states and 110 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-24 01:18:30,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:18:30,205 INFO L93 Difference]: Finished difference Result 95 states and 127 transitions.
[2024-11-24 01:18:30,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-24 01:18:30,206 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140
[2024-11-24 01:18:30,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:18:30,207 INFO L225 Difference]: With dead ends: 95
[2024-11-24 01:18:30,207 INFO L226 Difference]: Without dead ends: 93
[2024-11-24 01:18:30,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156
[2024-11-24 01:18:30,209 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 21 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-24 01:18:30,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 449 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-24 01:18:30,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2024-11-24 01:18:30,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 77.
[2024-11-24 01:18:30,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 47 states have (on average 1.148936170212766) internal successors, (54), 48 states have internal predecessors, (54), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-24 01:18:30,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions.
[2024-11-24 01:18:30,228 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 108 transitions. Word has length 140
[2024-11-24 01:18:30,229 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:18:30,229 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 108 transitions.
[2024-11-24 01:18:30,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-24 01:18:30,229 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 108 transitions.
[2024-11-24 01:18:30,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2024-11-24 01:18:30,231 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:18:30,231 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:18:30,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-24 01:18:30,232 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:18:30,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:18:30,232 INFO L85 PathProgramCache]: Analyzing trace with hash -2046409244, now seen corresponding path program 1 times
[2024-11-24 01:18:30,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:18:30,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296004351]
[2024-11-24 01:18:30,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:18:30,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:18:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:18:30,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2024-11-24 01:18:30,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:18:30,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296004351]
[2024-11-24 01:18:30,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296004351] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:18:30,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:18:30,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 01:18:30,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267555545]
[2024-11-24 01:18:30,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:18:30,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:18:30,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:18:30,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:18:30,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:18:30,452 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-24 01:18:30,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:18:30,645 INFO L93 Difference]: Finished difference Result 216 states and 303 transitions.
[2024-11-24 01:18:30,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 01:18:30,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 141
[2024-11-24 01:18:30,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:18:30,649 INFO L225 Difference]: With dead ends: 216
[2024-11-24 01:18:30,649 INFO L226 Difference]: Without dead ends: 142
[2024-11-24 01:18:30,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:18:30,651 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 52 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:18:30,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 226 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:18:30,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states.
[2024-11-24 01:18:30,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 123.
[2024-11-24 01:18:30,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 69 states have (on average 1.1159420289855073) internal successors, (77), 70 states have internal predecessors, (77), 50 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50)
[2024-11-24 01:18:30,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 177 transitions.
[2024-11-24 01:18:30,694 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 177 transitions. Word has length 141
[2024-11-24 01:18:30,696 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:18:30,696 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 177 transitions.
[2024-11-24 01:18:30,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)
[2024-11-24 01:18:30,699 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 177 transitions.
[2024-11-24 01:18:30,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279
[2024-11-24 01:18:30,705 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:18:30,706 INFO L218 NwaCegarLoop]: trace histogram [46, 46, 46, 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, 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, 1, 1, 1, 1, 1]
[2024-11-24 01:18:30,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-24 01:18:30,706 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 01:18:30,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:18:30,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1647990293, now seen corresponding path program 1 times
[2024-11-24 01:18:30,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:18:30,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848422214]
[2024-11-24 01:18:30,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:18:30,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:18:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:18:30,921 INFO L134 CoverageAnalysis]: Checked inductivity of 4184 backedges. 43 proven. 1 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked.
[2024-11-24 01:18:30,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:18:30,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848422214]
[2024-11-24 01:18:30,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848422214] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:18:30,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764453421]
[2024-11-24 01:18:30,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:18:30,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:18:30,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:18:30,925 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:18:30,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-24 01:18:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:18:31,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-24 01:18:31,136 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:18:31,334 INFO L134 CoverageAnalysis]: Checked inductivity of 4184 backedges. 2160 proven. 0 refuted. 0 times theorem prover too weak. 2024 trivial. 0 not checked.
[2024-11-24 01:18:31,334 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:18:31,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764453421] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:18:31,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 01:18:31,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5
[2024-11-24 01:18:31,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451661269]
[2024-11-24 01:18:31,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:18:31,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:18:31,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:18:31,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:18:31,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:18:31,336 INFO L87 Difference]: Start difference. First operand 123 states and 177 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46)
[2024-11-24 01:18:31,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:18:31,429 INFO L93 Difference]: Finished difference Result 178 states and 256 transitions.
[2024-11-24 01:18:31,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:18:31,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 278
[2024-11-24 01:18:31,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:18:31,433 INFO L225 Difference]: With dead ends: 178
[2024-11-24 01:18:31,433 INFO L226 Difference]: Without dead ends: 0
[2024-11-24 01:18:31,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:18:31,438 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 2 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:18:31,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 123 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:18:31,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-24 01:18:31,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-24 01:18:31,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:18:31,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-24 01:18:31,440 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 278
[2024-11-24 01:18:31,440 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:18:31,440 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-24 01:18:31,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46)
[2024-11-24 01:18:31,440 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-24 01:18:31,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-24 01:18:31,446 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-24 01:18:31,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-24 01:18:31,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:18:31,653 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:18:31,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-24 01:18:32,039 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-24 01:18:32,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:18:32 BoogieIcfgContainer
[2024-11-24 01:18:32,059 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-24 01:18:32,061 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-24 01:18:32,061 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-24 01:18:32,061 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-24 01:18:32,062 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:18:04" (3/4) ...
[2024-11-24 01:18:32,065 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-11-24 01:18:32,071 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not
[2024-11-24 01:18:32,080 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges
[2024-11-24 01:18:32,080 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-24 01:18:32,081 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-24 01:18:32,081 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-24 01:18:32,209 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-24 01:18:32,209 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-24 01:18:32,210 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-24 01:18:32,211 INFO L158 Benchmark]: Toolchain (without parser) took 28842.55ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 91.4MB in the beginning and 184.9MB in the end (delta: -93.5MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB.
[2024-11-24 01:18:32,212 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 83.9MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:18:32,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.43ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 78.4MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 01:18:32,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.30ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 76.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:18:32,215 INFO L158 Benchmark]: Boogie Preprocessor took 70.01ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 74.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:18:32,216 INFO L158 Benchmark]: RCFGBuilder took 525.40ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 57.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 01:18:32,216 INFO L158 Benchmark]: TraceAbstraction took 27525.17ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 56.9MB in the beginning and 190.9MB in the end (delta: -133.9MB). Peak memory consumption was 124.3MB. Max. memory is 16.1GB.
[2024-11-24 01:18:32,217 INFO L158 Benchmark]: Witness Printer took 149.15ms. Allocated memory is still 268.4MB. Free memory was 190.9MB in the beginning and 184.9MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 01:18:32,219 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.50ms. Allocated memory is still 83.9MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 480.43ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 78.4MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 83.30ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 76.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 70.01ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 74.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 525.40ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 57.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 27525.17ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 56.9MB in the beginning and 190.9MB in the end (delta: -133.9MB). Peak memory consumption was 124.3MB. Max. memory is 16.1GB.
* Witness Printer took 149.15ms. Allocated memory is still 268.4MB. Free memory was 190.9MB in the beginning and 184.9MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 19]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.0s, OverallIterations: 7, TraceHistogramMax: 46, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 176 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 176 mSDsluCounter, 2330 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1749 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 549 IncrementalHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 581 mSDtfsCounter, 549 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 484 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=123occurred in iteration=6, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 93 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 18.0s InterpolantComputationTime, 1537 NumberOfCodeBlocks, 1537 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1528 ConstructedInterpolants, 0 QuantifiedInterpolants, 3089 SizeOfPredicates, 0 NumberOfNonLiveVariables, 882 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 15407/15452 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 107]: Loop Invariant
Derived loop invariant: (((var_1_6 == 0) && (k_loop == 0)) || (0 < k_loop))
RESULT: Ultimate proved your program to be correct!
[2024-11-24 01:18:32,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb70534a-fddf-4c75-b5a0-0d4f1ee237a3/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
Writing output log to file Ultimate.log
Result:
TRUE