./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --traceabstraction.encode.modifies.clause.in.ensures.clause.of.contracts true --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version fb1cb0b9
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --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 e5903ff87e76f5c38f2f015436bd4a2c11a1411b3a93f272aa9f876a0a3f4d37 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --traceabstraction.encode.modifies.clause.in.ensures.clause.of.contracts true --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false
--- Real Ultimate output ---
This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m
[2024-09-25 10:49:15,642 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-09-25 10:49:15,707 INFO  L114        SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-25 10:49:15,715 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-09-25 10:49:15,717 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-25 10:49:15,743 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-25 10:49:15,745 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-25 10:49:15,745 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-25 10:49:15,746 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-25 10:49:15,749 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-09-25 10:49:15,749 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-25 10:49:15,749 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-25 10:49:15,750 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-25 10:49:15,750 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-09-25 10:49:15,750 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-09-25 10:49:15,750 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-25 10:49:15,750 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-09-25 10:49:15,751 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-09-25 10:49:15,751 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-09-25 10:49:15,751 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-09-25 10:49:15,754 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-09-25 10:49:15,754 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-09-25 10:49:15,754 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-25 10:49:15,755 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-09-25 10:49:15,755 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-09-25 10:49:15,755 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-09-25 10:49:15,755 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-09-25 10:49:15,755 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-09-25 10:49:15,755 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-25 10:49:15,756 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-09-25 10:49:15,756 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-09-25 10:49:15,756 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-09-25 10:49:15,756 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-25 10:49:15,756 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-25 10:49:15,757 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-09-25 10:49:15,757 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-25 10:49:15,757 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-09-25 10:49:15,758 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-25 10:49:15,759 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-25 10:49:15,759 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-25 10:49:15,759 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-09-25 10:49:15,759 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-25 10:49:15,759 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
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 -> /storage/repos/certificate-witnesses-artifact/automizer
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 -> e5903ff87e76f5c38f2f015436bd4a2c11a1411b3a93f272aa9f876a0a3f4d37
Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Encode 'modifies' clause in 'ensures' clause of contracts -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false
[2024-09-25 10:49:16,029 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-25 10:49:16,048 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-25 10:49:16,050 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-25 10:49:16,050 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-09-25 10:49:16,051 INFO  L274        PluginConnector]: CDTParser initialized
[2024-09-25 10:49:16,051 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i
[2024-09-25 10:49:17,314 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-09-25 10:49:17,457 INFO  L384              CDTParser]: Found 1 translation units.
[2024-09-25 10:49:17,457 INFO  L180              CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i
[2024-09-25 10:49:17,464 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/59ca7146f/7973b833eeac435eb56dc0c561fdb946/FLAG59ad53ad1
[2024-09-25 10:49:17,478 INFO  L435              CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/59ca7146f/7973b833eeac435eb56dc0c561fdb946
[2024-09-25 10:49:17,481 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-25 10:49:17,483 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-09-25 10:49:17,484 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-25 10:49:17,484 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-25 10:49:17,489 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-25 10:49:17,489 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:49:17" (1/1) ...
[2024-09-25 10:49:17,490 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bcc3263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:49:17, skipping insertion in model container
[2024-09-25 10:49:17,490 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:49:17" (1/1) ...
[2024-09-25 10:49:17,505 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-09-25 10:49:17,628 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i[950,963]
[2024-09-25 10:49:17,647 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-25 10:49:17,655 INFO  L200         MainTranslator]: Completed pre-run
[2024-09-25 10:49:17,663 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i[950,963]
[2024-09-25 10:49:17,670 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-25 10:49:17,687 INFO  L204         MainTranslator]: Completed translation
[2024-09-25 10:49:17,687 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:49:17 WrapperNode
[2024-09-25 10:49:17,687 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-25 10:49:17,688 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-25 10:49:17,688 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-25 10:49:17,688 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-25 10:49:17,693 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:49:17" (1/1) ...
[2024-09-25 10:49:17,697 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:49:17" (1/1) ...
[2024-09-25 10:49:17,702 INFO  L138                Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2024-09-25 10:49:17,702 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-25 10:49:17,703 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-25 10:49:17,703 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-25 10:49:17,704 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-09-25 10:49:17,711 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:49:17" (1/1) ...
[2024-09-25 10:49:17,711 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:49:17" (1/1) ...
[2024-09-25 10:49:17,712 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:49:17" (1/1) ...
[2024-09-25 10:49:17,726 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].
[2024-09-25 10:49:17,726 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:49:17" (1/1) ...
[2024-09-25 10:49:17,726 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:49:17" (1/1) ...
[2024-09-25 10:49:17,732 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:49:17" (1/1) ...
[2024-09-25 10:49:17,734 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:49:17" (1/1) ...
[2024-09-25 10:49:17,737 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:49:17" (1/1) ...
[2024-09-25 10:49:17,737 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:49:17" (1/1) ...
[2024-09-25 10:49:17,738 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-25 10:49:17,739 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-25 10:49:17,739 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-09-25 10:49:17,739 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-09-25 10:49:17,740 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:49:17" (1/1) ...
[2024-09-25 10:49:17,745 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-25 10:49:17,754 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 10:49:17,765 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-09-25 10:49:17,768 INFO  L327       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-09-25 10:49:17,802 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-25 10:49:17,802 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-09-25 10:49:17,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-09-25 10:49:17,802 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2024-09-25 10:49:17,803 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2024-09-25 10:49:17,803 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-09-25 10:49:17,803 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2024-09-25 10:49:17,804 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2024-09-25 10:49:17,804 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-25 10:49:17,804 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-25 10:49:17,804 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-25 10:49:17,805 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-09-25 10:49:17,853 INFO  L241             CfgBuilder]: Building ICFG
[2024-09-25 10:49:17,855 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-25 10:49:18,011 INFO  L?                        ?]: Removed 5 outVars from TransFormulas that were not future-live.
[2024-09-25 10:49:18,012 INFO  L290             CfgBuilder]: Performing block encoding
[2024-09-25 10:49:18,033 INFO  L312             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-25 10:49:18,033 INFO  L317             CfgBuilder]: Removed 2 assume(true) statements.
[2024-09-25 10:49:18,033 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:49:18 BoogieIcfgContainer
[2024-09-25 10:49:18,034 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-25 10:49:18,036 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-25 10:49:18,036 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-09-25 10:49:18,039 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-09-25 10:49:18,039 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:49:17" (1/3) ...
[2024-09-25 10:49:18,040 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f0232f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:49:18, skipping insertion in model container
[2024-09-25 10:49:18,040 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:49:17" (2/3) ...
[2024-09-25 10:49:18,042 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f0232f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:49:18, skipping insertion in model container
[2024-09-25 10:49:18,042 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:49:18" (3/3) ...
[2024-09-25 10:49:18,043 INFO  L112   eAbstractionObserver]: Analyzing ICFG divbin_unwindbound1.i
[2024-09-25 10:49:18,056 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-25 10:49:18,057 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-09-25 10:49:18,104 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-25 10:49:18,110 INFO  L336      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=All, 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;@47944f9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-25 10:49:18,110 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-09-25 10:49:18,113 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 31 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-09-25 10:49:18,119 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-09-25 10:49:18,119 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-25 10:49:18,120 INFO  L216           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 10:49:18,120 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 10:49:18,125 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:49:18,125 INFO  L85        PathProgramCache]: Analyzing trace with hash -1602480078, now seen corresponding path program 1 times
[2024-09-25 10:49:18,132 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 10:49:18,133 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768163997]
[2024-09-25 10:49:18,133 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:49:18,133 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 10:49:18,205 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:49:18,244 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 10:49:18,247 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:49:18,254 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 10:49:18,255 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:49:18,259 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 10:49:18,260 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:49:18,265 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-09-25 10:49:18,266 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 10:49:18,266 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768163997]
[2024-09-25 10:49:18,266 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768163997] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-25 10:49:18,266 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-25 10:49:18,266 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-25 10:49:18,267 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868559289]
[2024-09-25 10:49:18,268 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-25 10:49:18,271 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-25 10:49:18,271 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 10:49:18,289 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-25 10:49:18,289 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-25 10:49:18,291 INFO  L87              Difference]: Start difference. First operand  has 31 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-09-25 10:49:18,360 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 10:49:18,360 INFO  L93              Difference]: Finished difference Result 57 states and 81 transitions.
[2024-09-25 10:49:18,362 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-25 10:49:18,362 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22
[2024-09-25 10:49:18,363 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 10:49:18,376 INFO  L225             Difference]: With dead ends: 57
[2024-09-25 10:49:18,376 INFO  L226             Difference]: Without dead ends: 28
[2024-09-25 10:49:18,379 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-25 10:49:18,382 INFO  L434           NwaCegarLoop]: 24 mSDtfsCounter, 10 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-25 10:49:18,383 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 37 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-25 10:49:18,394 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2024-09-25 10:49:18,413 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27.
[2024-09-25 10:49:18,414 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-09-25 10:49:18,415 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions.
[2024-09-25 10:49:18,417 INFO  L78                 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 22
[2024-09-25 10:49:18,417 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-25 10:49:18,417 INFO  L474      AbstractCegarLoop]: Abstraction has 27 states and 33 transitions.
[2024-09-25 10:49:18,418 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-09-25 10:49:18,418 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:49:18,420 INFO  L276                IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions.
[2024-09-25 10:49:18,421 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-09-25 10:49:18,421 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-25 10:49:18,421 INFO  L216           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 10:49:18,421 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-25 10:49:18,422 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 10:49:18,422 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:49:18,422 INFO  L85        PathProgramCache]: Analyzing trace with hash 610811680, now seen corresponding path program 1 times
[2024-09-25 10:49:18,422 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 10:49:18,422 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253205634]
[2024-09-25 10:49:18,422 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:49:18,423 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 10:49:18,456 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:49:18,590 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 10:49:18,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:49:18,605 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 10:49:18,607 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:49:18,615 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 10:49:18,617 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:49:18,623 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-09-25 10:49:18,623 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 10:49:18,624 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253205634]
[2024-09-25 10:49:18,624 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253205634] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-25 10:49:18,624 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-25 10:49:18,624 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-25 10:49:18,624 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145220233]
[2024-09-25 10:49:18,624 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-25 10:49:18,625 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-25 10:49:18,625 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 10:49:18,626 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-25 10:49:18,626 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-25 10:49:18,626 INFO  L87              Difference]: Start difference. First operand 27 states and 33 transitions. Second operand  has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-09-25 10:49:18,707 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 10:49:18,707 INFO  L93              Difference]: Finished difference Result 41 states and 51 transitions.
[2024-09-25 10:49:18,708 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-09-25 10:49:18,708 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24
[2024-09-25 10:49:18,708 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 10:49:18,709 INFO  L225             Difference]: With dead ends: 41
[2024-09-25 10:49:18,710 INFO  L226             Difference]: Without dead ends: 29
[2024-09-25 10:49:18,710 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-09-25 10:49:18,711 INFO  L434           NwaCegarLoop]: 20 mSDtfsCounter, 13 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-25 10:49:18,711 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 59 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-25 10:49:18,712 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2024-09-25 10:49:18,723 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29.
[2024-09-25 10:49:18,723 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-09-25 10:49:18,729 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions.
[2024-09-25 10:49:18,730 INFO  L78                 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 24
[2024-09-25 10:49:18,731 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-25 10:49:18,731 INFO  L474      AbstractCegarLoop]: Abstraction has 29 states and 35 transitions.
[2024-09-25 10:49:18,731 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-09-25 10:49:18,731 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:49:18,732 INFO  L276                IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions.
[2024-09-25 10:49:18,732 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-09-25 10:49:18,732 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-25 10:49:18,732 INFO  L216           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 10:49:18,732 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-09-25 10:49:18,733 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 10:49:18,733 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:49:18,733 INFO  L85        PathProgramCache]: Analyzing trace with hash 1424295131, now seen corresponding path program 1 times
[2024-09-25 10:49:18,734 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 10:49:18,734 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133081944]
[2024-09-25 10:49:18,734 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:49:18,734 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 10:49:18,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-25 10:49:18,762 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [758945097]
[2024-09-25 10:49:18,765 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:49:18,765 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:49:18,765 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 10:49:18,767 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-25 10:49:18,768 INFO  L327       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-09-25 10:49:18,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:49:18,817 INFO  L262         TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-09-25 10:49:18,823 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 10:49:18,909 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-09-25 10:49:18,909 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-25 10:49:18,910 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 10:49:18,910 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133081944]
[2024-09-25 10:49:18,911 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-25 10:49:18,911 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758945097]
[2024-09-25 10:49:18,912 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [758945097] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-25 10:49:18,912 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-25 10:49:18,912 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-25 10:49:18,912 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977574968]
[2024-09-25 10:49:18,914 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-25 10:49:18,914 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-25 10:49:18,915 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 10:49:18,915 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-25 10:49:18,915 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-25 10:49:18,915 INFO  L87              Difference]: Start difference. First operand 29 states and 35 transitions. Second operand  has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-09-25 10:49:18,973 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 10:49:18,973 INFO  L93              Difference]: Finished difference Result 41 states and 50 transitions.
[2024-09-25 10:49:18,974 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-25 10:49:18,974 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25
[2024-09-25 10:49:18,974 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 10:49:18,975 INFO  L225             Difference]: With dead ends: 41
[2024-09-25 10:49:18,975 INFO  L226             Difference]: Without dead ends: 38
[2024-09-25 10:49:18,976 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-09-25 10:49:18,977 INFO  L434           NwaCegarLoop]: 24 mSDtfsCounter, 8 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-25 10:49:18,978 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 90 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-25 10:49:18,978 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2024-09-25 10:49:18,988 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38.
[2024-09-25 10:49:18,988 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 38 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 27 states have internal predecessors, (33), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-09-25 10:49:18,989 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions.
[2024-09-25 10:49:18,990 INFO  L78                 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 25
[2024-09-25 10:49:18,990 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-25 10:49:18,990 INFO  L474      AbstractCegarLoop]: Abstraction has 38 states and 45 transitions.
[2024-09-25 10:49:18,991 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-09-25 10:49:18,991 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:49:18,991 INFO  L276                IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions.
[2024-09-25 10:49:18,992 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2024-09-25 10:49:18,993 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-25 10:49:18,993 INFO  L216           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 10:49:19,007 INFO  L552       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-09-25 10:49:19,194 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 10:49:19,194 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 10:49:19,195 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:49:19,195 INFO  L85        PathProgramCache]: Analyzing trace with hash 1945714758, now seen corresponding path program 1 times
[2024-09-25 10:49:19,195 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 10:49:19,195 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764004263]
[2024-09-25 10:49:19,195 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 10:49:19,196 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 10:49:19,220 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:49:19,363 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 10:49:19,364 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:49:19,374 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 10:49:19,376 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:49:19,381 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 10:49:19,383 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:49:19,387 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-09-25 10:49:19,388 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 10:49:19,391 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-09-25 10:49:19,391 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 10:49:19,391 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764004263]
[2024-09-25 10:49:19,392 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764004263] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-25 10:49:19,393 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-25 10:49:19,394 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-09-25 10:49:19,395 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826287702]
[2024-09-25 10:49:19,395 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-25 10:49:19,395 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-09-25 10:49:19,395 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 10:49:19,395 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-09-25 10:49:19,396 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-09-25 10:49:19,396 INFO  L87              Difference]: Start difference. First operand 38 states and 45 transitions. Second operand  has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4)
[2024-09-25 10:49:19,449 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 10:49:19,450 INFO  L93              Difference]: Finished difference Result 40 states and 47 transitions.
[2024-09-25 10:49:19,450 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-09-25 10:49:19,451 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 34
[2024-09-25 10:49:19,451 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 10:49:19,451 INFO  L225             Difference]: With dead ends: 40
[2024-09-25 10:49:19,451 INFO  L226             Difference]: Without dead ends: 0
[2024-09-25 10:49:19,451 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-09-25 10:49:19,452 INFO  L434           NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-25 10:49:19,452 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 32 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-25 10:49:19,453 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-25 10:49:19,453 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-25 10:49:19,453 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-25 10:49:19,453 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-25 10:49:19,453 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34
[2024-09-25 10:49:19,453 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-25 10:49:19,453 INFO  L474      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-25 10:49:19,453 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4)
[2024-09-25 10:49:19,454 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 10:49:19,454 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-25 10:49:19,454 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-25 10:49:19,456 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-09-25 10:49:19,456 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-09-25 10:49:19,458 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-09-25 10:49:19,460 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-09-25 10:49:19,650 INFO  L165   ceAbstractionStarter]: Computing trace abstraction results
[2024-09-25 10:49:19,664 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length
[2024-09-25 10:49:19,665 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length
[2024-09-25 10:49:19,665 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
[2024-09-25 10:49:19,665 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
[2024-09-25 10:49:19,665 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0
[2024-09-25 10:49:19,666 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0
[2024-09-25 10:49:19,666 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid
[2024-09-25 10:49:19,673 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid
[2024-09-25 10:49:19,675 WARN  L156        FloydHoareUtils]: Requires clause for main contained old-variable. Original clause: (and (= ~counter~0 0) (= |old(~counter~0)| 0))  Eliminated clause: (= ~counter~0 0)
[2024-09-25 10:49:19,676 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length
[2024-09-25 10:49:19,676 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length
[2024-09-25 10:49:19,676 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
[2024-09-25 10:49:19,676 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
[2024-09-25 10:49:19,676 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0
[2024-09-25 10:49:19,676 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0
[2024-09-25 10:49:19,677 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid
[2024-09-25 10:49:19,677 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid
[2024-09-25 10:49:19,679 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length
[2024-09-25 10:49:19,680 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length
[2024-09-25 10:49:19,680 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
[2024-09-25 10:49:19,680 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
[2024-09-25 10:49:19,680 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0
[2024-09-25 10:49:19,681 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0
[2024-09-25 10:49:19,681 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid
[2024-09-25 10:49:19,681 WARN  L953   BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid
[2024-09-25 10:49:19,683 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:49:19 BoogieIcfgContainer
[2024-09-25 10:49:19,683 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-25 10:49:19,683 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-09-25 10:49:19,683 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-09-25 10:49:19,684 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-09-25 10:49:19,685 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:49:18" (3/4) ...
[2024-09-25 10:49:19,686 INFO  L139         WitnessPrinter]: Generating witness for correct program
[2024-09-25 10:49:19,737 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml
[2024-09-25 10:49:19,737 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-09-25 10:49:19,738 INFO  L158              Benchmark]: Toolchain (without parser) took 2255.36ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 39.9MB in the beginning and 63.4MB in the end (delta: -23.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-25 10:49:19,738 INFO  L158              Benchmark]: CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-25 10:49:19,738 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 203.24ms. Allocated memory is still 73.4MB. Free memory was 39.7MB in the beginning and 45.9MB in the end (delta: -6.2MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB.
[2024-09-25 10:49:19,738 INFO  L158              Benchmark]: Boogie Procedure Inliner took 14.55ms. Allocated memory is still 73.4MB. Free memory was 45.9MB in the beginning and 45.1MB in the end (delta: 821.4kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-25 10:49:19,739 INFO  L158              Benchmark]: Boogie Preprocessor took 35.28ms. Allocated memory is still 73.4MB. Free memory was 45.1MB in the beginning and 43.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-25 10:49:19,739 INFO  L158              Benchmark]: RCFGBuilder took 295.07ms. Allocated memory is still 73.4MB. Free memory was 43.2MB in the beginning and 52.2MB in the end (delta: -9.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2024-09-25 10:49:19,739 INFO  L158              Benchmark]: TraceAbstraction took 1647.29ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 51.5MB in the beginning and 65.6MB in the end (delta: -14.0MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB.
[2024-09-25 10:49:19,739 INFO  L158              Benchmark]: Witness Printer took 54.15ms. Allocated memory is still 88.1MB. Free memory was 65.6MB in the beginning and 63.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-25 10:49:19,740 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 203.24ms. Allocated memory is still 73.4MB. Free memory was 39.7MB in the beginning and 45.9MB in the end (delta: -6.2MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 14.55ms. Allocated memory is still 73.4MB. Free memory was 45.9MB in the beginning and 45.1MB in the end (delta: 821.4kB). There was no memory consumed. Max. memory is 16.1GB.
 * Boogie Preprocessor took 35.28ms. Allocated memory is still 73.4MB. Free memory was 45.1MB in the beginning and 43.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 295.07ms. Allocated memory is still 73.4MB. Free memory was 43.2MB in the beginning and 52.2MB in the end (delta: -9.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
 * TraceAbstraction took 1647.29ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 51.5MB in the beginning and 65.6MB in the end (delta: -14.0MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB.
 * Witness Printer took 54.15ms. Allocated memory is still 88.1MB. Free memory was 65.6MB in the beginning and 63.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #length
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #length
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #memory_int#0
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #memory_int#0
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #valid
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #valid
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #length
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #length
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #memory_int#0
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #memory_int#0
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #valid
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #valid
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #length
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #length
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #StackHeapBarrier
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #memory_int#0
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #memory_int#0
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #valid
  - GenericResult: Unfinished Backtranslation
    Unfinished Backtranslation: Unknown variable: #valid
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 21]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 5 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 218 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 140 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 141 IncrementalHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 78 mSDtfsCounter, 141 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=3, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 189 SizeOfPredicates, 1 NumberOfNonLiveVariables, 75 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 20/20 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 36]: Loop Invariant
    Derived loop invariant: ((\old(counter) == 0) && ((((A == r) && (counter == 0)) && (q == 0)) || (((A == r) && (1 <= counter)) && (q == 0))))
  - InvariantResult [Line: 40]: Loop Invariant
    Derived loop invariant: ((((A == r) && (1 <= counter)) && (\old(counter) == 0)) && (q == 0))
  - ProcedureContractResult [Line: 15]: Procedure Contract for assume_abort_if_not
    Derived contract for procedure assume_abort_if_not. Requires: (counter == 0) Ensures: ((counter == \old(counter)) && (counter == 0))
  - ProcedureContractResult [Line: 26]: Procedure Contract for main
    Derived contract for procedure main. Requires: (counter == 0) Ensures: (\old(counter) == 0)
  - ProcedureContractResult [Line: 18]: Procedure Contract for __VERIFIER_assert
    Derived contract for procedure __VERIFIER_assert. Requires: (1 <= cond) Ensures: ((counter == \old(counter)) && (1 <= cond))
RESULT: Ultimate proved your program to be correct!
[2024-09-25 10:49:19,760 INFO  L540       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE