./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-45.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_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/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_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-45.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/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_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/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 d19d7b2b7d747e3451ff133402a415fdd4ead636a3e1a2d0828b4dd66edd4355
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 23:24:25,962 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 23:24:26,050 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-23 23:24:26,055 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 23:24:26,055 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 23:24:26,092 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 23:24:26,094 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 23:24:26,094 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 23:24:26,095 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 23:24:26,095 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 23:24:26,096 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 23:24:26,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 23:24:26,096 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 23:24:26,097 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 23:24:26,097 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 23:24:26,097 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 23:24:26,097 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 23:24:26,098 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 23:24:26,099 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 23:24:26,099 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 23:24:26,099 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 23:24:26,099 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 23:24:26,099 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 23:24:26,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 23:24:26,099 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 23:24:26,099 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 23:24:26,100 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 23:24:26,100 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 23:24:26,100 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 23:24:26,100 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:24:26,100 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:24:26,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:24:26,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:24:26,100 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 23:24:26,100 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:24:26,101 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:24:26,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:24:26,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:24:26,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 23:24:26,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 23:24:26,101 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 23:24:26,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 23:24:26,101 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 23:24:26,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 23:24:26,101 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 23:24:26,101 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 23:24:26,101 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 23:24:26,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 23:24:26,103 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_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/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 -> d19d7b2b7d747e3451ff133402a415fdd4ead636a3e1a2d0828b4dd66edd4355
[2024-11-23 23:24:26,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 23:24:26,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 23:24:26,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 23:24:26,405 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 23:24:26,406 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 23:24:26,408 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-45.i
[2024-11-23 23:24:29,469 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/data/972dce66a/1de774f190204cf18621421611d86e38/FLAG12e5bbf67
[2024-11-23 23:24:29,791 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 23:24:29,791 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-45.i
[2024-11-23 23:24:29,801 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/data/972dce66a/1de774f190204cf18621421611d86e38/FLAG12e5bbf67
[2024-11-23 23:24:30,063 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/data/972dce66a/1de774f190204cf18621421611d86e38
[2024-11-23 23:24:30,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 23:24:30,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 23:24:30,070 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 23:24:30,072 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 23:24:30,077 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 23:24:30,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:24:30" (1/1) ...
[2024-11-23 23:24:30,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2b930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:30, skipping insertion in model container
[2024-11-23 23:24:30,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:24:30" (1/1) ...
[2024-11-23 23:24:30,105 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 23:24:30,275 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_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-45.i[913,926]
[2024-11-23 23:24:30,324 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:24:30,336 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 23:24:30,351 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_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-45.i[913,926]
[2024-11-23 23:24:30,384 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:24:30,399 INFO L204 MainTranslator]: Completed translation
[2024-11-23 23:24:30,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:30 WrapperNode
[2024-11-23 23:24:30,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 23:24:30,401 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 23:24:30,401 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 23:24:30,401 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 23:24:30,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:30" (1/1) ...
[2024-11-23 23:24:30,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:30" (1/1) ...
[2024-11-23 23:24:30,451 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 120
[2024-11-23 23:24:30,451 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 23:24:30,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 23:24:30,452 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 23:24:30,452 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 23:24:30,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:30" (1/1) ...
[2024-11-23 23:24:30,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:30" (1/1) ...
[2024-11-23 23:24:30,464 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:30" (1/1) ...
[2024-11-23 23:24:30,478 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 23:24:30,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:30" (1/1) ...
[2024-11-23 23:24:30,478 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:30" (1/1) ...
[2024-11-23 23:24:30,484 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:30" (1/1) ...
[2024-11-23 23:24:30,486 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:30" (1/1) ...
[2024-11-23 23:24:30,489 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:30" (1/1) ...
[2024-11-23 23:24:30,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:30" (1/1) ...
[2024-11-23 23:24:30,492 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:30" (1/1) ...
[2024-11-23 23:24:30,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 23:24:30,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 23:24:30,495 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 23:24:30,495 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 23:24:30,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:30" (1/1) ...
[2024-11-23 23:24:30,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:24:30,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:24:30,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 23:24:30,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 23:24:30,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 23:24:30,572 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-23 23:24:30,572 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-23 23:24:30,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 23:24:30,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 23:24:30,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 23:24:30,662 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 23:24:30,664 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 23:24:31,074 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live.
[2024-11-23 23:24:31,074 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 23:24:31,092 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 23:24:31,092 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-23 23:24:31,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:24:31 BoogieIcfgContainer
[2024-11-23 23:24:31,092 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 23:24:31,096 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 23:24:31,096 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 23:24:31,101 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 23:24:31,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:24:30" (1/3) ...
[2024-11-23 23:24:31,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2ecbf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:24:31, skipping insertion in model container
[2024-11-23 23:24:31,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:30" (2/3) ...
[2024-11-23 23:24:31,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2ecbf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:24:31, skipping insertion in model container
[2024-11-23 23:24:31,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:24:31" (3/3) ...
[2024-11-23 23:24:31,106 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-45.i
[2024-11-23 23:24:31,123 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 23:24:31,126 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_normal_file-45.i that has 2 procedures, 57 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-23 23:24:31,197 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 23:24:31,208 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;@3f00cee2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 23:24:31,208 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-23 23:24:31,212 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 38 states have (on average 1.394736842105263) internal successors, (53), 39 states have internal predecessors, (53), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-23 23:24:31,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2024-11-23 23:24:31,222 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:24:31,223 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:24:31,223 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:24:31,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:24:31,228 INFO L85 PathProgramCache]: Analyzing trace with hash 2077275396, now seen corresponding path program 1 times
[2024-11-23 23:24:31,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:24:31,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350660117]
[2024-11-23 23:24:31,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:24:31,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:24:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:24:31,570 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked.
[2024-11-23 23:24:31,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:24:31,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350660117]
[2024-11-23 23:24:31,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350660117] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:24:31,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302241891]
[2024-11-23 23:24:31,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:24:31,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:24:31,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:24:31,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:24:31,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-23 23:24:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:24:31,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-23 23:24:31,809 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:24:31,850 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked.
[2024-11-23 23:24:31,850 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:24:31,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302241891] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:24:31,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 23:24:31,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-23 23:24:31,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202301214]
[2024-11-23 23:24:31,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:24:31,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-23 23:24:31,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:24:31,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-23 23:24:31,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 23:24:31,885 INFO L87 Difference]: Start difference. First operand has 57 states, 38 states have (on average 1.394736842105263) internal successors, (53), 39 states have internal predecessors, (53), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)
[2024-11-23 23:24:31,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:24:31,908 INFO L93 Difference]: Finished difference Result 107 states and 180 transitions.
[2024-11-23 23:24:31,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 23:24:31,910 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 107
[2024-11-23 23:24:31,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:24:31,916 INFO L225 Difference]: With dead ends: 107
[2024-11-23 23:24:31,917 INFO L226 Difference]: Without dead ends: 53
[2024-11-23 23:24:31,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 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 23:24:31,923 INFO L435 NwaCegarLoop]: 78 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, 78 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 23:24:31,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 23:24:31,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2024-11-23 23:24:31,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2024-11-23 23:24:31,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 35 states have internal predecessors, (46), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-23 23:24:31,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 78 transitions.
[2024-11-23 23:24:31,966 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 78 transitions. Word has length 107
[2024-11-23 23:24:31,966 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:24:31,966 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 78 transitions.
[2024-11-23 23:24:31,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)
[2024-11-23 23:24:31,966 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 78 transitions.
[2024-11-23 23:24:31,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2024-11-23 23:24:31,973 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:24:31,973 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:24:31,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-23 23:24:32,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-23 23:24:32,174 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:24:32,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:24:32,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1761225468, now seen corresponding path program 1 times
[2024-11-23 23:24:32,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:24:32,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723214522]
[2024-11-23 23:24:32,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:24:32,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:24:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:24:32,467 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-23 23:24:32,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:24:32,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723214522]
[2024-11-23 23:24:32,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723214522] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:24:32,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:24:32,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 23:24:32,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257123970]
[2024-11-23 23:24:32,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:24:32,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 23:24:32,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:24:32,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 23:24:32,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 23:24:32,473 INFO L87 Difference]: Start difference. First operand 53 states and 78 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-23 23:24:32,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:24:32,543 INFO L93 Difference]: Finished difference Result 150 states and 222 transitions.
[2024-11-23 23:24:32,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 23:24:32,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 107
[2024-11-23 23:24:32,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:24:32,550 INFO L225 Difference]: With dead ends: 150
[2024-11-23 23:24:32,550 INFO L226 Difference]: Without dead ends: 100
[2024-11-23 23:24:32,551 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 23:24:32,554 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 67 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 23:24:32,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 149 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 23:24:32,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states.
[2024-11-23 23:24:32,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98.
[2024-11-23 23:24:32,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 63 states have (on average 1.253968253968254) internal successors, (79), 63 states have internal predecessors, (79), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-23 23:24:32,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 143 transitions.
[2024-11-23 23:24:32,591 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 143 transitions. Word has length 107
[2024-11-23 23:24:32,592 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:24:32,592 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 143 transitions.
[2024-11-23 23:24:32,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-23 23:24:32,592 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 143 transitions.
[2024-11-23 23:24:32,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-23 23:24:32,597 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:24:32,597 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:24:32,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-23 23:24:32,598 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:24:32,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:24:32,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1716052354, now seen corresponding path program 1 times
[2024-11-23 23:24:32,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:24:32,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125766986]
[2024-11-23 23:24:32,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:24:32,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:24:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:27:25,814 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-23 23:27:25,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:27:25,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125766986]
[2024-11-23 23:27:25,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125766986] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:27:25,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:27:25,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14
[2024-11-23 23:27:25,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233867232]
[2024-11-23 23:27:25,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:27:25,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-23 23:27:25,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:27:25,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-23 23:27:25,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182
[2024-11-23 23:27:25,819 INFO L87 Difference]: Start difference. First operand 98 states and 143 transitions. Second operand has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-23 23:27:29,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:27:29,792 INFO L93 Difference]: Finished difference Result 342 states and 470 transitions.
[2024-11-23 23:27:29,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-23 23:27:29,793 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 108
[2024-11-23 23:27:29,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:27:29,795 INFO L225 Difference]: With dead ends: 342
[2024-11-23 23:27:29,796 INFO L226 Difference]: Without dead ends: 247
[2024-11-23 23:27:29,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462
[2024-11-23 23:27:29,798 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 191 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-23 23:27:29,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 482 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-23 23:27:29,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states.
[2024-11-23 23:27:29,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 211.
[2024-11-23 23:27:29,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 157 states have (on average 1.267515923566879) internal successors, (199), 162 states have internal predecessors, (199), 46 states have call successors, (46), 7 states have call predecessors, (46), 7 states have return successors, (46), 41 states have call predecessors, (46), 46 states have call successors, (46)
[2024-11-23 23:27:29,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 291 transitions.
[2024-11-23 23:27:29,864 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 291 transitions. Word has length 108
[2024-11-23 23:27:29,865 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:27:29,865 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 291 transitions.
[2024-11-23 23:27:29,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-23 23:27:29,865 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 291 transitions.
[2024-11-23 23:27:29,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-23 23:27:29,870 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:27:29,870 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:27:29,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-23 23:27:29,871 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:27:29,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:27:29,872 INFO L85 PathProgramCache]: Analyzing trace with hash 58955008, now seen corresponding path program 1 times
[2024-11-23 23:27:29,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:27:29,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884640309]
[2024-11-23 23:27:29,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:27:29,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:27:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:29:25,086 WARN L286 SmtUtils]: Spent 17.12s on a formula simplification. DAG size of input: 284 DAG size of output: 224 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-23 23:31:13,297 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification. DAG size of input: 286 DAG size of output: 226 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-23 23:31:13,366 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-23 23:31:13,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:31:13,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884640309]
[2024-11-23 23:31:13,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884640309] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:31:13,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:31:13,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14
[2024-11-23 23:31:13,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067592951]
[2024-11-23 23:31:13,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:31:13,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-23 23:31:13,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:31:13,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-23 23:31:13,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182
[2024-11-23 23:31:13,369 INFO L87 Difference]: Start difference. First operand 211 states and 291 transitions. Second operand has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-23 23:31:23,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:31:23,073 INFO L93 Difference]: Finished difference Result 247 states and 326 transitions.
[2024-11-23 23:31:23,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-23 23:31:23,074 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 108
[2024-11-23 23:31:23,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:31:23,077 INFO L225 Difference]: With dead ends: 247
[2024-11-23 23:31:23,077 INFO L226 Difference]: Without dead ends: 245
[2024-11-23 23:31:23,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 37.5s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462
[2024-11-23 23:31:23,078 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 171 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2024-11-23 23:31:23,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 549 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2024-11-23 23:31:23,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states.
[2024-11-23 23:31:23,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 209.
[2024-11-23 23:31:23,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 155 states have (on average 1.270967741935484) internal successors, (197), 160 states have internal predecessors, (197), 46 states have call successors, (46), 7 states have call predecessors, (46), 7 states have return successors, (46), 41 states have call predecessors, (46), 46 states have call successors, (46)
[2024-11-23 23:31:23,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 289 transitions.
[2024-11-23 23:31:23,133 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 289 transitions. Word has length 108
[2024-11-23 23:31:23,134 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:31:23,134 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 289 transitions.
[2024-11-23 23:31:23,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-23 23:31:23,134 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 289 transitions.
[2024-11-23 23:31:23,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-23 23:31:23,136 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:31:23,136 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:31:23,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-23 23:31:23,137 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:31:23,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:31:23,138 INFO L85 PathProgramCache]: Analyzing trace with hash 831097206, now seen corresponding path program 1 times
[2024-11-23 23:31:23,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:31:23,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66756599]
[2024-11-23 23:31:23,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:31:23,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:31:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:31:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-23 23:31:41,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:31:41,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66756599]
[2024-11-23 23:31:41,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66756599] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:31:41,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:31:41,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-23 23:31:41,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091113012]
[2024-11-23 23:31:41,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:31:41,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 23:31:41,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:31:41,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 23:31:41,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:31:41,853 INFO L87 Difference]: Start difference. First operand 209 states and 289 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-23 23:31:42,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:31:42,578 INFO L93 Difference]: Finished difference Result 526 states and 711 transitions.
[2024-11-23 23:31:42,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-23 23:31:42,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 108
[2024-11-23 23:31:42,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:31:42,583 INFO L225 Difference]: With dead ends: 526
[2024-11-23 23:31:42,584 INFO L226 Difference]: Without dead ends: 328
[2024-11-23 23:31:42,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:31:42,586 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 92 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-23 23:31:42,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 232 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-23 23:31:42,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states.
[2024-11-23 23:31:42,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 239.
[2024-11-23 23:31:42,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 175 states have (on average 1.2514285714285713) internal successors, (219), 180 states have internal predecessors, (219), 54 states have call successors, (54), 9 states have call predecessors, (54), 9 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54)
[2024-11-23 23:31:42,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 327 transitions.
[2024-11-23 23:31:42,693 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 327 transitions. Word has length 108
[2024-11-23 23:31:42,693 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:31:42,693 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 327 transitions.
[2024-11-23 23:31:42,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-23 23:31:42,694 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 327 transitions.
[2024-11-23 23:31:42,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-23 23:31:42,696 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:31:42,696 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:31:42,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-23 23:31:42,696 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:31:42,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:31:42,697 INFO L85 PathProgramCache]: Analyzing trace with hash 21750580, now seen corresponding path program 1 times
[2024-11-23 23:31:42,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:31:42,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607667301]
[2024-11-23 23:31:42,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:31:42,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:31:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:31:45,432 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-23 23:31:45,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:31:45,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607667301]
[2024-11-23 23:31:45,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607667301] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:31:45,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:31:45,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-23 23:31:45,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571218327]
[2024-11-23 23:31:45,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:31:45,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 23:31:45,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:31:45,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 23:31:45,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:31:45,439 INFO L87 Difference]: Start difference. First operand 239 states and 327 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-23 23:31:45,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:31:45,982 INFO L93 Difference]: Finished difference Result 556 states and 747 transitions.
[2024-11-23 23:31:45,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-23 23:31:45,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 108
[2024-11-23 23:31:45,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:31:45,986 INFO L225 Difference]: With dead ends: 556
[2024-11-23 23:31:45,986 INFO L226 Difference]: Without dead ends: 328
[2024-11-23 23:31:45,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:31:45,988 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 77 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-23 23:31:45,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 283 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-23 23:31:45,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states.
[2024-11-23 23:31:46,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 229.
[2024-11-23 23:31:46,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 165 states have (on average 1.2424242424242424) internal successors, (205), 170 states have internal predecessors, (205), 54 states have call successors, (54), 9 states have call predecessors, (54), 9 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54)
[2024-11-23 23:31:46,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 313 transitions.
[2024-11-23 23:31:46,062 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 313 transitions. Word has length 108
[2024-11-23 23:31:46,063 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:31:46,063 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 313 transitions.
[2024-11-23 23:31:46,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-23 23:31:46,063 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 313 transitions.
[2024-11-23 23:31:46,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-23 23:31:46,064 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:31:46,065 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:31:46,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-23 23:31:46,065 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:31:46,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:31:46,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1299051264, now seen corresponding path program 1 times
[2024-11-23 23:31:46,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:31:46,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435550999]
[2024-11-23 23:31:46,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:31:46,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:31:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:33:26,323 WARN L286 SmtUtils]: Spent 7.15s on a formula simplification. DAG size of input: 251 DAG size of output: 241 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-23 23:34:54,270 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-23 23:34:54,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:34:54,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435550999]
[2024-11-23 23:34:54,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435550999] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:34:54,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:34:54,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14
[2024-11-23 23:34:54,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233188998]
[2024-11-23 23:34:54,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:34:54,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-23 23:34:54,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:34:54,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-23 23:34:54,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182
[2024-11-23 23:34:54,273 INFO L87 Difference]: Start difference. First operand 229 states and 313 transitions. Second operand has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-23 23:35:02,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:35:02,456 INFO L93 Difference]: Finished difference Result 569 states and 756 transitions.
[2024-11-23 23:35:02,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-23 23:35:02,457 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 108
[2024-11-23 23:35:02,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:35:02,460 INFO L225 Difference]: With dead ends: 569
[2024-11-23 23:35:02,460 INFO L226 Difference]: Without dead ends: 351
[2024-11-23 23:35:02,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462
[2024-11-23 23:35:02,462 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 203 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-11-23 23:35:02,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 436 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-11-23 23:35:02,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states.
[2024-11-23 23:35:02,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 292.
[2024-11-23 23:35:02,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 218 states have (on average 1.238532110091743) internal successors, (270), 225 states have internal predecessors, (270), 60 states have call successors, (60), 13 states have call predecessors, (60), 13 states have return successors, (60), 53 states have call predecessors, (60), 60 states have call successors, (60)
[2024-11-23 23:35:02,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 390 transitions.
[2024-11-23 23:35:02,540 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 390 transitions. Word has length 108
[2024-11-23 23:35:02,540 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:35:02,541 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 390 transitions.
[2024-11-23 23:35:02,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-23 23:35:02,541 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 390 transitions.
[2024-11-23 23:35:02,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-23 23:35:02,542 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:35:02,542 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:35:02,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-23 23:35:02,543 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:35:02,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:35:02,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1220908670, now seen corresponding path program 1 times
[2024-11-23 23:35:02,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:35:02,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879048823]
[2024-11-23 23:35:02,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:35:02,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:35:02,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:37:05,929 WARN L286 SmtUtils]: Spent 11.66s on a formula simplification. DAG size of input: 273 DAG size of output: 207 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-23 23:38:30,215 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory")
[2024-11-23 23:38:30,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101
[2024-11-23 23:38:30,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-23 23:38:30,217 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107)
at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.postprocessInterpolant(NestedInterpolantsBuilder.java:472)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.buildPredicates(NestedInterpolantsBuilder.java:416)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.<init>(NestedInterpolantsBuilder.java:164)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:292)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:227)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.<init>(InterpolatingTraceCheckCraig.java:98)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:75)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:82)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:140)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701)
at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258)
... 58 more
[2024-11-23 23:38:30,229 INFO L158 Benchmark]: Toolchain (without parser) took 840159.78ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 939.5MB). Free memory was 92.0MB in the beginning and 666.6MB in the end (delta: -574.6MB). Peak memory consumption was 641.3MB. Max. memory is 16.1GB.
[2024-11-23 23:38:30,229 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 23:38:30,229 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.06ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 78.5MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-23 23:38:30,230 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.42ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 75.9MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 23:38:30,230 INFO L158 Benchmark]: Boogie Preprocessor took 42.50ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 72.3MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 23:38:30,230 INFO L158 Benchmark]: RCFGBuilder took 597.49ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 54.2MB in the end (delta: 18.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-23 23:38:30,231 INFO L158 Benchmark]: TraceAbstraction took 839131.76ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 939.5MB). Free memory was 53.7MB in the beginning and 666.6MB in the end (delta: -612.9MB). Peak memory consumption was 599.3MB. Max. memory is 16.1GB.
[2024-11-23 23:38:30,235 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.60ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 330.06ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 78.5MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 50.42ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 75.9MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 42.50ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 72.3MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 597.49ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 54.2MB in the end (delta: 18.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* TraceAbstraction took 839131.76ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 939.5MB). Free memory was 53.7MB in the beginning and 666.6MB in the end (delta: -612.9MB). Peak memory consumption was 599.3MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
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_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/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_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-45.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/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_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/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 d19d7b2b7d747e3451ff133402a415fdd4ead636a3e1a2d0828b4dd66edd4355
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 23:38:33,008 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 23:38:33,122 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-23 23:38:33,129 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 23:38:33,130 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 23:38:33,191 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 23:38:33,192 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 23:38:33,193 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 23:38:33,194 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 23:38:33,194 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 23:38:33,195 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 23:38:33,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 23:38:33,196 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 23:38:33,196 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 23:38:33,197 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 23:38:33,197 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 23:38:33,197 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 23:38:33,197 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 23:38:33,198 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 23:38:33,198 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 23:38:33,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 23:38:33,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 23:38:33,199 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 23:38:33,199 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-23 23:38:33,199 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-23 23:38:33,199 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-23 23:38:33,199 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 23:38:33,199 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 23:38:33,199 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 23:38:33,200 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 23:38:33,200 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 23:38:33,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:38:33,200 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:38:33,200 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:38:33,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:38:33,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 23:38:33,201 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:38:33,202 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:38:33,202 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:38:33,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:38:33,202 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 23:38:33,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 23:38:33,202 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 23:38:33,202 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 23:38:33,203 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-23 23:38:33,203 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-23 23:38:33,203 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 23:38:33,203 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 23:38:33,203 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 23:38:33,203 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 23:38:33,203 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_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/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 -> d19d7b2b7d747e3451ff133402a415fdd4ead636a3e1a2d0828b4dd66edd4355
[2024-11-23 23:38:33,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 23:38:33,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 23:38:33,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 23:38:33,614 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 23:38:33,617 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 23:38:33,618 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-45.i
[2024-11-23 23:38:36,645 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/data/20d412932/de469390ed1f4864a7e19aa3cdc02a5c/FLAG940219513
[2024-11-23 23:38:37,027 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 23:38:37,030 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-45.i
[2024-11-23 23:38:37,049 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/data/20d412932/de469390ed1f4864a7e19aa3cdc02a5c/FLAG940219513
[2024-11-23 23:38:37,077 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/data/20d412932/de469390ed1f4864a7e19aa3cdc02a5c
[2024-11-23 23:38:37,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 23:38:37,084 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 23:38:37,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 23:38:37,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 23:38:37,094 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 23:38:37,095 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:38:37" (1/1) ...
[2024-11-23 23:38:37,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18dd7dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:37, skipping insertion in model container
[2024-11-23 23:38:37,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:38:37" (1/1) ...
[2024-11-23 23:38:37,126 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 23:38:37,331 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_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-45.i[913,926]
[2024-11-23 23:38:37,442 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:38:37,467 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 23:38:37,485 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_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-45.i[913,926]
[2024-11-23 23:38:37,541 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:38:37,562 INFO L204 MainTranslator]: Completed translation
[2024-11-23 23:38:37,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:37 WrapperNode
[2024-11-23 23:38:37,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 23:38:37,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 23:38:37,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 23:38:37,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 23:38:37,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:37" (1/1) ...
[2024-11-23 23:38:37,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:37" (1/1) ...
[2024-11-23 23:38:37,628 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117
[2024-11-23 23:38:37,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 23:38:37,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 23:38:37,634 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 23:38:37,634 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 23:38:37,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:37" (1/1) ...
[2024-11-23 23:38:37,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:37" (1/1) ...
[2024-11-23 23:38:37,656 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:37" (1/1) ...
[2024-11-23 23:38:37,682 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 23:38:37,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:37" (1/1) ...
[2024-11-23 23:38:37,686 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:37" (1/1) ...
[2024-11-23 23:38:37,704 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:37" (1/1) ...
[2024-11-23 23:38:37,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:37" (1/1) ...
[2024-11-23 23:38:37,716 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:37" (1/1) ...
[2024-11-23 23:38:37,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:37" (1/1) ...
[2024-11-23 23:38:37,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:37" (1/1) ...
[2024-11-23 23:38:37,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 23:38:37,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 23:38:37,734 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 23:38:37,735 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 23:38:37,736 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:37" (1/1) ...
[2024-11-23 23:38:37,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:38:37,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:38:37,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 23:38:37,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 23:38:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 23:38:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-23 23:38:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-23 23:38:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-23 23:38:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 23:38:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 23:38:37,931 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 23:38:37,933 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 23:38:38,384 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live.
[2024-11-23 23:38:38,384 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 23:38:38,395 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 23:38:38,395 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-23 23:38:38,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:38:38 BoogieIcfgContainer
[2024-11-23 23:38:38,396 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 23:38:38,398 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 23:38:38,398 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 23:38:38,405 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 23:38:38,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:38:37" (1/3) ...
[2024-11-23 23:38:38,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b368295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:38:38, skipping insertion in model container
[2024-11-23 23:38:38,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:37" (2/3) ...
[2024-11-23 23:38:38,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b368295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:38:38, skipping insertion in model container
[2024-11-23 23:38:38,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:38:38" (3/3) ...
[2024-11-23 23:38:38,408 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-45.i
[2024-11-23 23:38:38,425 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 23:38:38,427 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_normal_file-45.i that has 2 procedures, 57 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-23 23:38:38,492 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 23:38:38,505 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;@195b8903, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 23:38:38,505 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-23 23:38:38,510 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 38 states have (on average 1.394736842105263) internal successors, (53), 39 states have internal predecessors, (53), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-23 23:38:38,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2024-11-23 23:38:38,521 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:38:38,522 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:38:38,522 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:38:38,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:38:38,527 INFO L85 PathProgramCache]: Analyzing trace with hash 2077275396, now seen corresponding path program 1 times
[2024-11-23 23:38:38,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:38:38,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [962522078]
[2024-11-23 23:38:38,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:38:38,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:38:38,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:38:38,542 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:38:38,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-23 23:38:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:38:38,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-23 23:38:38,800 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:38:38,839 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked.
[2024-11-23 23:38:38,839 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:38:38,840 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:38:38,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962522078]
[2024-11-23 23:38:38,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962522078] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:38:38,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:38:38,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 23:38:38,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855010997]
[2024-11-23 23:38:38,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:38:38,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-23 23:38:38,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:38:38,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-23 23:38:38,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-23 23:38:38,876 INFO L87 Difference]: Start difference. First operand has 57 states, 38 states have (on average 1.394736842105263) internal successors, (53), 39 states have internal predecessors, (53), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)
[2024-11-23 23:38:38,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:38:38,921 INFO L93 Difference]: Finished difference Result 107 states and 180 transitions.
[2024-11-23 23:38:38,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 23:38:38,925 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 107
[2024-11-23 23:38:38,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:38:38,934 INFO L225 Difference]: With dead ends: 107
[2024-11-23 23:38:38,934 INFO L226 Difference]: Without dead ends: 53
[2024-11-23 23:38:38,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 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 23:38:38,945 INFO L435 NwaCegarLoop]: 78 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, 78 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 23:38:38,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 23:38:38,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2024-11-23 23:38:38,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2024-11-23 23:38:38,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 35 states have internal predecessors, (46), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-23 23:38:38,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 78 transitions.
[2024-11-23 23:38:38,996 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 78 transitions. Word has length 107
[2024-11-23 23:38:38,996 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:38:38,996 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 78 transitions.
[2024-11-23 23:38:38,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)
[2024-11-23 23:38:38,997 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 78 transitions.
[2024-11-23 23:38:39,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2024-11-23 23:38:39,000 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:38:39,000 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:38:39,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-23 23:38:39,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:38:39,201 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:38:39,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:38:39,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1761225468, now seen corresponding path program 1 times
[2024-11-23 23:38:39,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:38:39,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [536479319]
[2024-11-23 23:38:39,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:38:39,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:38:39,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:38:39,208 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:38:39,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-23 23:38:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:38:39,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-23 23:38:39,423 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:38:39,509 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-23 23:38:39,512 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:38:39,513 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:38:39,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536479319]
[2024-11-23 23:38:39,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536479319] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:38:39,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:38:39,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 23:38:39,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805523586]
[2024-11-23 23:38:39,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:38:39,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 23:38:39,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:38:39,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 23:38:39,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 23:38:39,519 INFO L87 Difference]: Start difference. First operand 53 states and 78 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-23 23:38:39,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:38:39,664 INFO L93 Difference]: Finished difference Result 150 states and 222 transitions.
[2024-11-23 23:38:39,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 23:38:39,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 107
[2024-11-23 23:38:39,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:38:39,667 INFO L225 Difference]: With dead ends: 150
[2024-11-23 23:38:39,669 INFO L226 Difference]: Without dead ends: 100
[2024-11-23 23:38:39,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 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 23:38:39,671 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 67 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:38:39,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 149 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 23:38:39,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states.
[2024-11-23 23:38:39,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98.
[2024-11-23 23:38:39,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 63 states have (on average 1.253968253968254) internal successors, (79), 63 states have internal predecessors, (79), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-23 23:38:39,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 143 transitions.
[2024-11-23 23:38:39,713 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 143 transitions. Word has length 107
[2024-11-23 23:38:39,713 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:38:39,715 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 143 transitions.
[2024-11-23 23:38:39,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-23 23:38:39,716 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 143 transitions.
[2024-11-23 23:38:39,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-23 23:38:39,717 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:38:39,718 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:38:39,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-23 23:38:39,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:38:39,918 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:38:39,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:38:39,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1716052354, now seen corresponding path program 1 times
[2024-11-23 23:38:39,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:38:39,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [166228184]
[2024-11-23 23:38:39,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:38:39,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:38:39,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:38:39,924 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:38:39,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-23 23:38:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:38:40,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-23 23:38:40,098 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:38:40,931 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 167 proven. 36 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked.
[2024-11-23 23:38:40,933 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:38:41,436 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 42 proven. 3 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked.
[2024-11-23 23:38:41,436 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:38:41,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166228184]
[2024-11-23 23:38:41,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166228184] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:38:41,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 23:38:41,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6] total 16
[2024-11-23 23:38:41,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760599006]
[2024-11-23 23:38:41,437 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:38:41,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-11-23 23:38:41,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:38:41,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-11-23 23:38:41,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240
[2024-11-23 23:38:41,440 INFO L87 Difference]: Start difference. First operand 98 states and 143 transitions. Second operand has 16 states, 16 states have (on average 3.75) internal successors, (60), 15 states have internal predecessors, (60), 4 states have call successors, (30), 3 states have call predecessors, (30), 6 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31)
[2024-11-23 23:38:42,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:38:42,494 INFO L93 Difference]: Finished difference Result 168 states and 234 transitions.
[2024-11-23 23:38:42,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-23 23:38:42,495 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.75) internal successors, (60), 15 states have internal predecessors, (60), 4 states have call successors, (30), 3 states have call predecessors, (30), 6 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) Word has length 108
[2024-11-23 23:38:42,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:38:42,497 INFO L225 Difference]: With dead ends: 168
[2024-11-23 23:38:42,497 INFO L226 Difference]: Without dead ends: 73
[2024-11-23 23:38:42,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=253, Invalid=677, Unknown=0, NotChecked=0, Total=930
[2024-11-23 23:38:42,500 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 122 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-23 23:38:42,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 193 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-23 23:38:42,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states.
[2024-11-23 23:38:42,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 64.
[2024-11-23 23:38:42,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-23 23:38:42,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions.
[2024-11-23 23:38:42,537 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 108
[2024-11-23 23:38:42,539 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:38:42,539 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions.
[2024-11-23 23:38:42,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.75) internal successors, (60), 15 states have internal predecessors, (60), 4 states have call successors, (30), 3 states have call predecessors, (30), 6 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31)
[2024-11-23 23:38:42,540 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions.
[2024-11-23 23:38:42,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-23 23:38:42,544 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:38:42,545 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:38:42,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-23 23:38:42,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:38:42,746 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:38:42,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:38:42,747 INFO L85 PathProgramCache]: Analyzing trace with hash 831097206, now seen corresponding path program 1 times
[2024-11-23 23:38:42,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:38:42,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [38866677]
[2024-11-23 23:38:42,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:38:42,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:38:42,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:38:42,752 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:38:42,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-23 23:38:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:38:42,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-23 23:38:42,894 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:38:42,963 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-23 23:38:42,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:38:42,964 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 23:38:42,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38866677]
[2024-11-23 23:38:42,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38866677] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:38:42,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:38:42,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 23:38:42,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014929524]
[2024-11-23 23:38:42,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:38:42,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 23:38:42,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 23:38:42,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 23:38:42,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 23:38:42,966 INFO L87 Difference]: Start difference. First operand 64 states and 82 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-23 23:38:43,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:38:43,068 INFO L93 Difference]: Finished difference Result 125 states and 161 transitions.
[2024-11-23 23:38:43,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 23:38:43,076 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 108
[2024-11-23 23:38:43,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:38:43,078 INFO L225 Difference]: With dead ends: 125
[2024-11-23 23:38:43,079 INFO L226 Difference]: Without dead ends: 64
[2024-11-23 23:38:43,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 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 23:38:43,083 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:38:43,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 23:38:43,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2024-11-23 23:38:43,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64.
[2024-11-23 23:38:43,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 43 states have internal predecessors, (49), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-23 23:38:43,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions.
[2024-11-23 23:38:43,125 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 108
[2024-11-23 23:38:43,125 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:38:43,125 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions.
[2024-11-23 23:38:43,126 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-23 23:38:43,126 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions.
[2024-11-23 23:38:43,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110
[2024-11-23 23:38:43,132 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-23 23:38:43,133 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:38:43,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-23 23:38:43,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:38:43,336 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:38:43,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:38:43,337 INFO L85 PathProgramCache]: Analyzing trace with hash -242274181, now seen corresponding path program 1 times
[2024-11-23 23:38:43,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 23:38:43,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728475684]
[2024-11-23 23:38:43,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:38:43,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:38:43,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:38:43,342 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:38:43,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af89ce74-38df-4b40-99f8-d7a4f5f4fb92/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-23 23:38:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:38:43,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-23 23:38:43,527 INFO L279 TraceCheckSpWp]: Computing forward predicates...