./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-63.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version 826ab2ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-63.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd --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 31ed4c1d4c56093916e3e6078a050f9b467d4295a9560366c0e4e3c015413196
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-826ab2b
[2024-11-13 15:00:04,104 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-13 15:00:04,216 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-13 15:00:04,222 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-13 15:00:04,223 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-13 15:00:04,248 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-13 15:00:04,249 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-13 15:00:04,250 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-13 15:00:04,250 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-13 15:00:04,250 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-13 15:00:04,250 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-13 15:00:04,251 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-13 15:00:04,251 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-13 15:00:04,251 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-13 15:00:04,254 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-13 15:00:04,254 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-13 15:00:04,255 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-13 15:00:04,255 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-13 15:00:04,255 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-13 15:00:04,255 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-13 15:00:04,255 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-13 15:00:04,255 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-13 15:00:04,255 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-13 15:00:04,256 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-13 15:00:04,256 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-13 15:00:04,256 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-13 15:00:04,256 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-13 15:00:04,256 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-13 15:00:04,256 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-13 15:00:04,256 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-13 15:00:04,257 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-13 15:00:04,257 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-13 15:00:04,257 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 15:00:04,257 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-13 15:00:04,257 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-13 15:00:04,257 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-13 15:00:04,257 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-13 15:00:04,257 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-13 15:00:04,257 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-13 15:00:04,257 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-13 15:00:04,257 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-13 15:00:04,258 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-13 15:00:04,258 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_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd
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 -> 31ed4c1d4c56093916e3e6078a050f9b467d4295a9560366c0e4e3c015413196
[2024-11-13 15:00:04,601 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-13 15:00:04,611 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-13 15:00:04,613 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-13 15:00:04,615 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-13 15:00:04,616 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-13 15:00:04,617 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-63.i
Unable to find full path for "g++"
[2024-11-13 15:00:06,783 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-13 15:00:07,153 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-13 15:00:07,154 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-63.i
[2024-11-13 15:00:07,179 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd/data/fa901f039/086447bfee0e4ecea8a2ccc2ece76aa6/FLAG7f7069614
[2024-11-13 15:00:07,206 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd/data/fa901f039/086447bfee0e4ecea8a2ccc2ece76aa6
[2024-11-13 15:00:07,210 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-13 15:00:07,212 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-13 15:00:07,213 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-13 15:00:07,213 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-13 15:00:07,217 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-13 15:00:07,218 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:00:07" (1/1) ...
[2024-11-13 15:00:07,222 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b018dbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:07, skipping insertion in model container
[2024-11-13 15:00:07,223 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:00:07" (1/1) ...
[2024-11-13 15:00:07,253 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-13 15:00:07,452 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_0209a8cd-228f-492a-a5be-b343dedd9e99/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-63.i[916,929]
[2024-11-13 15:00:07,505 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-13 15:00:07,527 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-13 15:00:07,547 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_0209a8cd-228f-492a-a5be-b343dedd9e99/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-63.i[916,929]
[2024-11-13 15:00:07,598 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-13 15:00:07,616 INFO  L204         MainTranslator]: Completed translation
[2024-11-13 15:00:07,617 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:07 WrapperNode
[2024-11-13 15:00:07,617 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-13 15:00:07,618 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-13 15:00:07,619 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-13 15:00:07,620 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-13 15:00:07,628 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:07" (1/1) ...
[2024-11-13 15:00:07,644 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:07" (1/1) ...
[2024-11-13 15:00:07,690 INFO  L138                Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 129
[2024-11-13 15:00:07,692 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-13 15:00:07,693 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-13 15:00:07,694 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-13 15:00:07,694 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-13 15:00:07,713 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:07" (1/1) ...
[2024-11-13 15:00:07,713 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:07" (1/1) ...
[2024-11-13 15:00:07,716 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:07" (1/1) ...
[2024-11-13 15:00:07,731 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].
[2024-11-13 15:00:07,732 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:07" (1/1) ...
[2024-11-13 15:00:07,732 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:07" (1/1) ...
[2024-11-13 15:00:07,738 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:07" (1/1) ...
[2024-11-13 15:00:07,742 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:07" (1/1) ...
[2024-11-13 15:00:07,744 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:07" (1/1) ...
[2024-11-13 15:00:07,745 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:07" (1/1) ...
[2024-11-13 15:00:07,748 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-13 15:00:07,749 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-13 15:00:07,749 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-13 15:00:07,749 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-13 15:00:07,750 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:07" (1/1) ...
[2024-11-13 15:00:07,757 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 15:00:07,779 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 15:00:07,793 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-13 15:00:07,798 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-13 15:00:07,832 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-13 15:00:07,832 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-13 15:00:07,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-13 15:00:07,833 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-13 15:00:07,833 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-13 15:00:07,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-13 15:00:07,949 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-13 15:00:07,951 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-13 15:00:08,390 INFO  L?                        ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-13 15:00:08,391 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-13 15:00:08,409 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-13 15:00:08,411 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-13 15:00:08,412 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:00:08 BoogieIcfgContainer
[2024-11-13 15:00:08,412 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-13 15:00:08,415 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-13 15:00:08,416 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-13 15:00:08,423 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-13 15:00:08,424 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:00:07" (1/3) ...
[2024-11-13 15:00:08,424 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131c20ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:00:08, skipping insertion in model container
[2024-11-13 15:00:08,424 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:07" (2/3) ...
[2024-11-13 15:00:08,425 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131c20ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:00:08, skipping insertion in model container
[2024-11-13 15:00:08,425 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:00:08" (3/3) ...
[2024-11-13 15:00:08,426 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-63.i
[2024-11-13 15:00:08,441 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-13 15:00:08,443 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-63.i that has 2 procedures, 56 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-13 15:00:08,518 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-13 15:00:08,533 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;@6ec38059, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-13 15:00:08,533 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-13 15:00:08,538 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 56 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-13 15:00:08,551 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2024-11-13 15:00:08,551 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 15:00:08,552 INFO  L215           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 15:00:08,553 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 15:00:08,558 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 15:00:08,559 INFO  L85        PathProgramCache]: Analyzing trace with hash -63995288, now seen corresponding path program 1 times
[2024-11-13 15:00:08,568 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 15:00:08,569 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905570307]
[2024-11-13 15:00:08,569 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:00:08,570 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 15:00:08,736 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:08,922 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-13 15:00:08,926 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:08,932 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-13 15:00:08,935 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:08,939 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-13 15:00:08,942 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:08,946 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-11-13 15:00:08,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:08,953 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2024-11-13 15:00:08,956 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:08,960 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-13 15:00:08,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:08,970 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-13 15:00:08,977 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:08,984 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-13 15:00:08,991 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:09,003 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2024-11-13 15:00:09,006 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:09,038 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-13 15:00:09,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:09,049 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-11-13 15:00:09,051 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:09,056 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2024-11-13 15:00:09,063 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:09,067 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71
[2024-11-13 15:00:09,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:09,080 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2024-11-13 15:00:09,083 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:09,086 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2024-11-13 15:00:09,089 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:09,092 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2024-11-13 15:00:09,094 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:09,100 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93
[2024-11-13 15:00:09,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:09,109 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98
[2024-11-13 15:00:09,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:09,122 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2024-11-13 15:00:09,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:09,132 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2024-11-13 15:00:09,137 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:09,140 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115
[2024-11-13 15:00:09,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:09,145 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2024-11-13 15:00:09,148 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:09,156 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked.
[2024-11-13 15:00:09,157 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 15:00:09,157 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905570307]
[2024-11-13 15:00:09,158 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905570307] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 15:00:09,158 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 15:00:09,159 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 15:00:09,161 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727252744]
[2024-11-13 15:00:09,161 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 15:00:09,167 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-13 15:00:09,167 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 15:00:09,190 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-13 15:00:09,190 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-13 15:00:09,193 INFO  L87              Difference]: Start difference. First operand  has 56 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22)
[2024-11-13 15:00:09,224 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 15:00:09,224 INFO  L93              Difference]: Finished difference Result 105 states and 182 transitions.
[2024-11-13 15:00:09,225 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-13 15:00:09,227 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) Word has length 134
[2024-11-13 15:00:09,227 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 15:00:09,235 INFO  L225             Difference]: With dead ends: 105
[2024-11-13 15:00:09,235 INFO  L226             Difference]: Without dead ends: 52
[2024-11-13 15:00:09,239 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-13 15:00:09,243 INFO  L432           NwaCegarLoop]: 76 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, 76 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
[2024-11-13 15:00:09,244 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-13 15:00:09,261 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2024-11-13 15:00:09,286 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52.
[2024-11-13 15:00:09,287 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 52 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 states have internal predecessors, (32), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-13 15:00:09,294 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 76 transitions.
[2024-11-13 15:00:09,299 INFO  L78                 Accepts]: Start accepts. Automaton has 52 states and 76 transitions. Word has length 134
[2024-11-13 15:00:09,300 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 15:00:09,300 INFO  L471      AbstractCegarLoop]: Abstraction has 52 states and 76 transitions.
[2024-11-13 15:00:09,301 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22)
[2024-11-13 15:00:09,301 INFO  L276                IsEmpty]: Start isEmpty. Operand 52 states and 76 transitions.
[2024-11-13 15:00:09,304 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2024-11-13 15:00:09,304 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 15:00:09,305 INFO  L215           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 15:00:09,305 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-13 15:00:09,305 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 15:00:09,306 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 15:00:09,306 INFO  L85        PathProgramCache]: Analyzing trace with hash -607903448, now seen corresponding path program 1 times
[2024-11-13 15:00:09,307 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 15:00:09,307 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343589174]
[2024-11-13 15:00:09,307 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:00:09,307 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 15:00:09,458 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,140 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-13 15:00:10,143 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,148 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-13 15:00:10,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,156 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-13 15:00:10,158 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,166 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-11-13 15:00:10,171 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,178 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2024-11-13 15:00:10,184 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,189 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-13 15:00:10,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,198 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-13 15:00:10,201 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,207 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-13 15:00:10,216 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,225 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2024-11-13 15:00:10,231 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,234 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-13 15:00:10,236 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,240 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-11-13 15:00:10,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,245 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2024-11-13 15:00:10,247 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,252 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71
[2024-11-13 15:00:10,254 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,258 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2024-11-13 15:00:10,260 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,264 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2024-11-13 15:00:10,266 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,270 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2024-11-13 15:00:10,273 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,276 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93
[2024-11-13 15:00:10,279 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,283 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98
[2024-11-13 15:00:10,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,289 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2024-11-13 15:00:10,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,295 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2024-11-13 15:00:10,298 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,302 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115
[2024-11-13 15:00:10,304 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,308 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2024-11-13 15:00:10,310 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:10,315 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked.
[2024-11-13 15:00:10,315 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 15:00:10,316 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343589174]
[2024-11-13 15:00:10,316 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343589174] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 15:00:10,316 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 15:00:10,316 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-13 15:00:10,316 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276887793]
[2024-11-13 15:00:10,317 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 15:00:10,318 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-13 15:00:10,318 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 15:00:10,319 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-13 15:00:10,320 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-11-13 15:00:10,320 INFO  L87              Difference]: Start difference. First operand 52 states and 76 transitions. Second operand  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2024-11-13 15:00:10,774 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 15:00:10,775 INFO  L93              Difference]: Finished difference Result 105 states and 152 transitions.
[2024-11-13 15:00:10,777 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-13 15:00:10,777 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 134
[2024-11-13 15:00:10,778 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 15:00:10,781 INFO  L225             Difference]: With dead ends: 105
[2024-11-13 15:00:10,782 INFO  L226             Difference]: Without dead ends: 56
[2024-11-13 15:00:10,783 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2024-11-13 15:00:10,785 INFO  L432           NwaCegarLoop]: 69 mSDtfsCounter, 95 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-13 15:00:10,786 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 104 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-13 15:00:10,787 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2024-11-13 15:00:10,820 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56.
[2024-11-13 15:00:10,823 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 56 states, 31 states have (on average 1.096774193548387) internal successors, (34), 31 states have internal predecessors, (34), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-13 15:00:10,824 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions.
[2024-11-13 15:00:10,825 INFO  L78                 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 134
[2024-11-13 15:00:10,825 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 15:00:10,826 INFO  L471      AbstractCegarLoop]: Abstraction has 56 states and 78 transitions.
[2024-11-13 15:00:10,826 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2024-11-13 15:00:10,826 INFO  L276                IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions.
[2024-11-13 15:00:10,830 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2024-11-13 15:00:10,830 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 15:00:10,831 INFO  L215           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 15:00:10,831 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-13 15:00:10,831 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 15:00:10,831 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 15:00:10,832 INFO  L85        PathProgramCache]: Analyzing trace with hash -550645146, now seen corresponding path program 1 times
[2024-11-13 15:00:10,832 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 15:00:10,832 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953680013]
[2024-11-13 15:00:10,832 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:00:10,832 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 15:00:10,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:25,955 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-13 15:00:25,960 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:25,966 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-13 15:00:25,968 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:25,972 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-13 15:00:25,975 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:25,979 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-11-13 15:00:25,981 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:25,986 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2024-11-13 15:00:25,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:25,995 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-13 15:00:25,998 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,001 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-13 15:00:26,003 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,007 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-13 15:00:26,010 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,014 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2024-11-13 15:00:26,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,023 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-13 15:00:26,029 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,033 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-11-13 15:00:26,035 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,039 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2024-11-13 15:00:26,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,046 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71
[2024-11-13 15:00:26,050 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,054 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2024-11-13 15:00:26,056 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,059 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2024-11-13 15:00:26,061 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,065 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2024-11-13 15:00:26,067 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,072 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93
[2024-11-13 15:00:26,074 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,079 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98
[2024-11-13 15:00:26,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,085 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2024-11-13 15:00:26,087 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,091 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2024-11-13 15:00:26,096 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,099 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115
[2024-11-13 15:00:26,102 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,105 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2024-11-13 15:00:26,107 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:26,112 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked.
[2024-11-13 15:00:26,113 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 15:00:26,113 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953680013]
[2024-11-13 15:00:26,113 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953680013] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 15:00:26,113 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 15:00:26,114 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-11-13 15:00:26,114 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341021854]
[2024-11-13 15:00:26,114 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 15:00:26,116 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-13 15:00:26,116 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 15:00:26,117 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-13 15:00:26,117 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2024-11-13 15:00:26,117 INFO  L87              Difference]: Start difference. First operand 56 states and 78 transitions. Second operand  has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2024-11-13 15:00:28,641 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 15:00:28,641 INFO  L93              Difference]: Finished difference Result 108 states and 146 transitions.
[2024-11-13 15:00:28,643 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-13 15:00:28,643 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 134
[2024-11-13 15:00:28,647 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 15:00:28,648 INFO  L225             Difference]: With dead ends: 108
[2024-11-13 15:00:28,649 INFO  L226             Difference]: Without dead ends: 106
[2024-11-13 15:00:28,649 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272
[2024-11-13 15:00:28,656 INFO  L432           NwaCegarLoop]: 100 mSDtfsCounter, 134 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-13 15:00:28,657 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 344 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-13 15:00:28,658 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 106 states.
[2024-11-13 15:00:28,689 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 89.
[2024-11-13 15:00:28,689 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 89 states, 50 states have (on average 1.08) internal successors, (54), 51 states have internal predecessors, (54), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-13 15:00:28,691 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 122 transitions.
[2024-11-13 15:00:28,692 INFO  L78                 Accepts]: Start accepts. Automaton has 89 states and 122 transitions. Word has length 134
[2024-11-13 15:00:28,692 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 15:00:28,693 INFO  L471      AbstractCegarLoop]: Abstraction has 89 states and 122 transitions.
[2024-11-13 15:00:28,693 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2024-11-13 15:00:28,693 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 122 transitions.
[2024-11-13 15:00:28,695 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2024-11-13 15:00:28,696 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 15:00:28,696 INFO  L215           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 15:00:28,696 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-13 15:00:28,696 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 15:00:28,697 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 15:00:28,697 INFO  L85        PathProgramCache]: Analyzing trace with hash -1359991772, now seen corresponding path program 1 times
[2024-11-13 15:00:28,697 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 15:00:28,697 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243804040]
[2024-11-13 15:00:28,698 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:00:28,698 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 15:00:28,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,340 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-13 15:00:36,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,346 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-11-13 15:00:36,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,351 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-13 15:00:36,353 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,356 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-11-13 15:00:36,358 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,361 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2024-11-13 15:00:36,363 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,366 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-13 15:00:36,367 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,371 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-13 15:00:36,372 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,375 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-13 15:00:36,377 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,442 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2024-11-13 15:00:36,444 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,448 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-13 15:00:36,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,455 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-11-13 15:00:36,456 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,460 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2024-11-13 15:00:36,462 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,467 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71
[2024-11-13 15:00:36,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,474 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2024-11-13 15:00:36,475 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,480 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2024-11-13 15:00:36,482 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,487 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2024-11-13 15:00:36,489 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,493 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93
[2024-11-13 15:00:36,495 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,500 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98
[2024-11-13 15:00:36,502 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,507 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2024-11-13 15:00:36,509 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,514 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2024-11-13 15:00:36,515 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,520 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115
[2024-11-13 15:00:36,522 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,527 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2024-11-13 15:00:36,529 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,535 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 21 proven. 42 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked.
[2024-11-13 15:00:36,535 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 15:00:36,535 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243804040]
[2024-11-13 15:00:36,535 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243804040] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 15:00:36,535 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043466457]
[2024-11-13 15:00:36,535 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:00:36,536 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 15:00:36,536 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 15:00:36,539 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 15:00:36,541 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0209a8cd-228f-492a-a5be-b343dedd9e99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-13 15:00:36,668 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:00:36,672 INFO  L255         TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 26 conjuncts are in the unsatisfiable core
[2024-11-13 15:00:36,683 INFO  L278         TraceCheckSpWp]: Computing forward predicates...