./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/rewnifrev.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-tiling/rewnifrev.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1 --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 62ffb246c1e6cc2a3d3d5a08bb5a65a9894a173aba5be4caac9150f1d27ccfed
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 08:31:36,937 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 08:31:36,994 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-12-02 08:31:36,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 08:31:36,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 08:31:37,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 08:31:37,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 08:31:37,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 08:31:37,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 08:31:37,023 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 08:31:37,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 08:31:37,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 08:31:37,023 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 08:31:37,023 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 08:31:37,023 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 08:31:37,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 08:31:37,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 08:31:37,024 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 08:31:37,024 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 08:31:37,024 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 08:31:37,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 08:31:37,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 08:31:37,024 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 08:31:37,024 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 08:31:37,024 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 08:31:37,024 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 08:31:37,025 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 08:31:37,025 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 08:31:37,025 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 08:31:37,025 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 08:31:37,025 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:31:37,025 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 08:31:37,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:31:37,025 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 08:31:37,025 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 08:31:37,025 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:31:37,025 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 08:31:37,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:31:37,026 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 08:31:37,026 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 08:31:37,026 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 08:31:37,026 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 08:31:37,026 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 08:31:37,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 08:31:37,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 08:31:37,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 08:31:37,026 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 08:31:37,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 08:31:37,027 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_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1
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 -> 62ffb246c1e6cc2a3d3d5a08bb5a65a9894a173aba5be4caac9150f1d27ccfed
[2024-12-02 08:31:37,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 08:31:37,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 08:31:37,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 08:31:37,267 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 08:31:37,267 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 08:31:37,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/array-tiling/rewnifrev.c
[2024-12-02 08:31:40,008 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/data/c0fa2f590/6e836831a3a046e3b996ec3e200d7b0b/FLAGdb36ea67a
[2024-12-02 08:31:40,208 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 08:31:40,209 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/sv-benchmarks/c/array-tiling/rewnifrev.c
[2024-12-02 08:31:40,216 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/data/c0fa2f590/6e836831a3a046e3b996ec3e200d7b0b/FLAGdb36ea67a
[2024-12-02 08:31:40,570 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/data/c0fa2f590/6e836831a3a046e3b996ec3e200d7b0b
[2024-12-02 08:31:40,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 08:31:40,572 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 08:31:40,573 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 08:31:40,573 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 08:31:40,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 08:31:40,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:31:40" (1/1) ...
[2024-12-02 08:31:40,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@798ed788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:31:40, skipping insertion in model container
[2024-12-02 08:31:40,578 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:31:40" (1/1) ...
[2024-12-02 08:31:40,587 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 08:31:40,697 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_202667d2-85ca-462e-9448-321d818dfac5/sv-benchmarks/c/array-tiling/rewnifrev.c[400,413]
[2024-12-02 08:31:40,712 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:31:40,720 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 08:31:40,728 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_202667d2-85ca-462e-9448-321d818dfac5/sv-benchmarks/c/array-tiling/rewnifrev.c[400,413]
[2024-12-02 08:31:40,733 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:31:40,747 INFO L204 MainTranslator]: Completed translation
[2024-12-02 08:31:40,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:31:40 WrapperNode
[2024-12-02 08:31:40,747 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 08:31:40,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 08:31:40,748 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 08:31:40,749 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 08:31:40,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:31:40" (1/1) ...
[2024-12-02 08:31:40,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:31:40" (1/1) ...
[2024-12-02 08:31:40,775 INFO L138 Inliner]: procedures = 16, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48
[2024-12-02 08:31:40,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 08:31:40,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 08:31:40,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 08:31:40,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 08:31:40,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:31:40" (1/1) ...
[2024-12-02 08:31:40,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:31:40" (1/1) ...
[2024-12-02 08:31:40,786 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:31:40" (1/1) ...
[2024-12-02 08:31:40,796 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2].
[2024-12-02 08:31:40,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:31:40" (1/1) ...
[2024-12-02 08:31:40,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:31:40" (1/1) ...
[2024-12-02 08:31:40,801 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:31:40" (1/1) ...
[2024-12-02 08:31:40,802 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:31:40" (1/1) ...
[2024-12-02 08:31:40,805 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:31:40" (1/1) ...
[2024-12-02 08:31:40,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:31:40" (1/1) ...
[2024-12-02 08:31:40,806 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:31:40" (1/1) ...
[2024-12-02 08:31:40,807 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 08:31:40,808 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 08:31:40,808 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 08:31:40,808 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 08:31:40,809 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:31:40" (1/1) ...
[2024-12-02 08:31:40,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:31:40,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:31:40,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 08:31:40,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 08:31:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 08:31:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 08:31:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-12-02 08:31:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-02 08:31:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-02 08:31:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-12-02 08:31:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 08:31:40,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 08:31:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-02 08:31:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-02 08:31:40,921 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 08:31:40,922 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 08:31:41,015 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-12-02 08:31:41,015 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 08:31:41,023 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 08:31:41,023 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-12-02 08:31:41,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:31:41 BoogieIcfgContainer
[2024-12-02 08:31:41,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 08:31:41,026 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 08:31:41,026 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 08:31:41,030 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 08:31:41,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:31:40" (1/3) ...
[2024-12-02 08:31:41,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286ed6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:31:41, skipping insertion in model container
[2024-12-02 08:31:41,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:31:40" (2/3) ...
[2024-12-02 08:31:41,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286ed6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:31:41, skipping insertion in model container
[2024-12-02 08:31:41,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:31:41" (3/3) ...
[2024-12-02 08:31:41,032 INFO L128 eAbstractionObserver]: Analyzing ICFG rewnifrev.c
[2024-12-02 08:31:41,046 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 08:31:41,047 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rewnifrev.c that has 1 procedures, 18 locations, 1 initial locations, 2 loop locations, and 1 error locations.
[2024-12-02 08:31:41,097 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 08:31:41,109 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;@44aed316, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 08:31:41,109 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 08:31:41,113 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 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)
[2024-12-02 08:31:41,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-12-02 08:31:41,119 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:31:41,119 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:31:41,120 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:31:41,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:31:41,125 INFO L85 PathProgramCache]: Analyzing trace with hash -180792150, now seen corresponding path program 1 times
[2024-12-02 08:31:41,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:31:41,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051422973]
[2024-12-02 08:31:41,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:31:41,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:31:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:31:41,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:31:41,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:31:41,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051422973]
[2024-12-02 08:31:41,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051422973] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:31:41,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:31:41,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 08:31:41,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708417558]
[2024-12-02 08:31:41,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:31:41,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-02 08:31:41,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:31:41,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-02 08:31:41,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 08:31:41,283 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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)
[2024-12-02 08:31:41,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:31:41,292 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions.
[2024-12-02 08:31:41,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-02 08:31:41,294 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) Word has length 9
[2024-12-02 08:31:41,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:31:41,299 INFO L225 Difference]: With dead ends: 30
[2024-12-02 08:31:41,299 INFO L226 Difference]: Without dead ends: 13
[2024-12-02 08:31:41,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 08:31:41,305 INFO L435 NwaCegarLoop]: 21 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, 21 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
[2024-12-02 08:31:41,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:31:41,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2024-12-02 08:31:41,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2024-12-02 08:31:41,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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)
[2024-12-02 08:31:41,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions.
[2024-12-02 08:31:41,329 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 9
[2024-12-02 08:31:41,329 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:31:41,329 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions.
[2024-12-02 08:31:41,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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)
[2024-12-02 08:31:41,329 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions.
[2024-12-02 08:31:41,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-12-02 08:31:41,330 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:31:41,330 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:31:41,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 08:31:41,330 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:31:41,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:31:41,331 INFO L85 PathProgramCache]: Analyzing trace with hash -467083660, now seen corresponding path program 1 times
[2024-12-02 08:31:41,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:31:41,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533216511]
[2024-12-02 08:31:41,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:31:41,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:31:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:31:41,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:31:41,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:31:41,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533216511]
[2024-12-02 08:31:41,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533216511] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:31:41,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:31:41,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 08:31:41,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810561309]
[2024-12-02 08:31:41,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:31:41,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 08:31:41,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:31:41,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 08:31:41,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 08:31:41,429 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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)
[2024-12-02 08:31:41,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:31:41,473 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions.
[2024-12-02 08:31:41,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 08:31:41,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9
[2024-12-02 08:31:41,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:31:41,474 INFO L225 Difference]: With dead ends: 26
[2024-12-02 08:31:41,474 INFO L226 Difference]: Without dead ends: 16
[2024-12-02 08:31:41,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 08:31:41,475 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:31:41,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 16 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:31:41,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2024-12-02 08:31:41,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15.
[2024-12-02 08:31:41,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 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)
[2024-12-02 08:31:41,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions.
[2024-12-02 08:31:41,479 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 9
[2024-12-02 08:31:41,479 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:31:41,479 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions.
[2024-12-02 08:31:41,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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)
[2024-12-02 08:31:41,479 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions.
[2024-12-02 08:31:41,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-12-02 08:31:41,480 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:31:41,480 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:31:41,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 08:31:41,480 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:31:41,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:31:41,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1860097761, now seen corresponding path program 1 times
[2024-12-02 08:31:41,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:31:41,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973357230]
[2024-12-02 08:31:41,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:31:41,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:31:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:31:41,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:31:41,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:31:41,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973357230]
[2024-12-02 08:31:41,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973357230] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:31:41,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:31:41,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 08:31:41,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718435923]
[2024-12-02 08:31:41,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:31:41,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 08:31:41,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:31:41,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 08:31:41,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:31:41,575 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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)
[2024-12-02 08:31:41,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:31:41,619 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions.
[2024-12-02 08:31:41,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 08:31:41,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) Word has length 12
[2024-12-02 08:31:41,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:31:41,620 INFO L225 Difference]: With dead ends: 30
[2024-12-02 08:31:41,620 INFO L226 Difference]: Without dead ends: 23
[2024-12-02 08:31:41,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:31:41,621 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:31:41,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 15 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:31:41,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2024-12-02 08:31:41,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17.
[2024-12-02 08:31:41,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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)
[2024-12-02 08:31:41,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions.
[2024-12-02 08:31:41,625 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12
[2024-12-02 08:31:41,625 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:31:41,625 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions.
[2024-12-02 08:31:41,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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)
[2024-12-02 08:31:41,626 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions.
[2024-12-02 08:31:41,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-12-02 08:31:41,626 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:31:41,626 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:31:41,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 08:31:41,626 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:31:41,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:31:41,627 INFO L85 PathProgramCache]: Analyzing trace with hash 316453970, now seen corresponding path program 1 times
[2024-12-02 08:31:41,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:31:41,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636869855]
[2024-12-02 08:31:41,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:31:41,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:31:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:31:42,011 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-12-02 08:31:42,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:31:42,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636869855]
[2024-12-02 08:31:42,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636869855] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:31:42,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:31:42,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-12-02 08:31:42,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751945701]
[2024-12-02 08:31:42,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:31:42,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-12-02 08:31:42,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:31:42,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-12-02 08:31:42,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2024-12-02 08:31:42,013 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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)
[2024-12-02 08:31:42,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:31:42,103 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions.
[2024-12-02 08:31:42,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 08:31:42,103 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) Word has length 15
[2024-12-02 08:31:42,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:31:42,104 INFO L225 Difference]: With dead ends: 25
[2024-12-02 08:31:42,104 INFO L226 Difference]: Without dead ends: 23
[2024-12-02 08:31:42,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90
[2024-12-02 08:31:42,105 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 20 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 08:31:42,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 21 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 08:31:42,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2024-12-02 08:31:42,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20.
[2024-12-02 08:31:42,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 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)
[2024-12-02 08:31:42,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions.
[2024-12-02 08:31:42,109 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 15
[2024-12-02 08:31:42,109 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:31:42,109 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions.
[2024-12-02 08:31:42,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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)
[2024-12-02 08:31:42,110 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions.
[2024-12-02 08:31:42,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-12-02 08:31:42,110 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:31:42,110 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:31:42,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 08:31:42,110 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:31:42,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:31:42,111 INFO L85 PathProgramCache]: Analyzing trace with hash 985893784, now seen corresponding path program 1 times
[2024-12-02 08:31:42,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:31:42,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132015346]
[2024-12-02 08:31:42,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:31:42,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:31:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:31:42,407 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:31:42,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:31:42,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132015346]
[2024-12-02 08:31:42,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132015346] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 08:31:42,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768767950]
[2024-12-02 08:31:42,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:31:42,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:31:42,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:31:42,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:31:42,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 08:31:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:31:42,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-12-02 08:31:42,471 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:31:42,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14
[2024-12-02 08:31:42,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20
[2024-12-02 08:31:42,727 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:31:42,727 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 08:31:42,878 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:31:42,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768767950] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 08:31:42,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 08:31:42,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20
[2024-12-02 08:31:42,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584254336]
[2024-12-02 08:31:42,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 08:31:42,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-12-02 08:31:42,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:31:42,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-12-02 08:31:42,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380
[2024-12-02 08:31:42,880 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 states have internal predecessors, (45), 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)
[2024-12-02 08:31:43,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:31:43,133 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions.
[2024-12-02 08:31:43,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-12-02 08:31:43,134 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 states have internal predecessors, (45), 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) Word has length 19
[2024-12-02 08:31:43,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:31:43,134 INFO L225 Difference]: With dead ends: 31
[2024-12-02 08:31:43,135 INFO L226 Difference]: Without dead ends: 29
[2024-12-02 08:31:43,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=179, Invalid=471, Unknown=0, NotChecked=0, Total=650
[2024-12-02 08:31:43,136 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 34 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 08:31:43,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 31 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 08:31:43,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2024-12-02 08:31:43,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24.
[2024-12-02 08:31:43,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 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)
[2024-12-02 08:31:43,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions.
[2024-12-02 08:31:43,142 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 19
[2024-12-02 08:31:43,142 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:31:43,142 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions.
[2024-12-02 08:31:43,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 states have internal predecessors, (45), 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)
[2024-12-02 08:31:43,143 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions.
[2024-12-02 08:31:43,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-12-02 08:31:43,143 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:31:43,143 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:31:43,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 08:31:43,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:31:43,344 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:31:43,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:31:43,345 INFO L85 PathProgramCache]: Analyzing trace with hash -650031138, now seen corresponding path program 2 times
[2024-12-02 08:31:43,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:31:43,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590061720]
[2024-12-02 08:31:43,345 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 08:31:43,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:31:43,361 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 08:31:43,361 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 08:31:43,440 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:31:43,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:31:43,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590061720]
[2024-12-02 08:31:43,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590061720] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 08:31:43,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59646157]
[2024-12-02 08:31:43,440 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 08:31:43,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:31:43,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:31:43,442 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:31:43,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 08:31:43,491 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 08:31:43,491 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 08:31:43,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 08:31:43,494 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:31:43,574 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:31:43,575 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 08:31:43,642 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:31:43,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59646157] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 08:31:43,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 08:31:43,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 12
[2024-12-02 08:31:43,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654901656]
[2024-12-02 08:31:43,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 08:31:43,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-12-02 08:31:43,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:31:43,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-12-02 08:31:43,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132
[2024-12-02 08:31:43,644 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 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)
[2024-12-02 08:31:43,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:31:43,741 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions.
[2024-12-02 08:31:43,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-12-02 08:31:43,741 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 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) Word has length 23
[2024-12-02 08:31:43,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:31:43,742 INFO L225 Difference]: With dead ends: 50
[2024-12-02 08:31:43,742 INFO L226 Difference]: Without dead ends: 28
[2024-12-02 08:31:43,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=91, Unknown=0, NotChecked=0, Total=156
[2024-12-02 08:31:43,743 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 08:31:43,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 25 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 08:31:43,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2024-12-02 08:31:43,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27.
[2024-12-02 08:31:43,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 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)
[2024-12-02 08:31:43,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions.
[2024-12-02 08:31:43,748 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 23
[2024-12-02 08:31:43,748 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:31:43,748 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions.
[2024-12-02 08:31:43,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 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)
[2024-12-02 08:31:43,748 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions.
[2024-12-02 08:31:43,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-12-02 08:31:43,749 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:31:43,749 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:31:43,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 08:31:43,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-12-02 08:31:43,950 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:31:43,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:31:43,950 INFO L85 PathProgramCache]: Analyzing trace with hash -427814071, now seen corresponding path program 3 times
[2024-12-02 08:31:43,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:31:43,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223774183]
[2024-12-02 08:31:43,950 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 08:31:43,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:31:43,979 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2024-12-02 08:31:43,979 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 08:31:44,466 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:31:44,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:31:44,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223774183]
[2024-12-02 08:31:44,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223774183] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 08:31:44,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872390740]
[2024-12-02 08:31:44,467 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 08:31:44,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 08:31:44,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:31:44,468 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 08:31:44,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 08:31:44,525 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2024-12-02 08:31:44,526 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 08:31:44,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-12-02 08:31:44,530 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 08:31:44,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2024-12-02 08:31:44,694 INFO L349 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size
[2024-12-02 08:31:44,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 19
[2024-12-02 08:31:44,789 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size
[2024-12-02 08:31:44,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 49
[2024-12-02 08:31:45,065 INFO L349 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size
[2024-12-02 08:31:45,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 50
[2024-12-02 08:31:45,727 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 08:31:45,728 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 08:31:45,729 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 08:31:45,732 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 08:31:45,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 16
[2024-12-02 08:31:45,759 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:31:45,759 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 08:31:46,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18
[2024-12-02 08:31:46,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20
[2024-12-02 08:31:46,362 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:31:46,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872390740] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 08:31:46,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 08:31:46,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 13] total 34
[2024-12-02 08:31:46,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248662401]
[2024-12-02 08:31:46,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 08:31:46,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2024-12-02 08:31:46,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:31:46,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2024-12-02 08:31:46,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=904, Unknown=0, NotChecked=0, Total=1122
[2024-12-02 08:31:46,365 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 34 states, 34 states have (on average 2.088235294117647) internal successors, (71), 34 states have internal predecessors, (71), 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)
[2024-12-02 08:31:48,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:31:48,237 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions.
[2024-12-02 08:31:48,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states.
[2024-12-02 08:31:48,238 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.088235294117647) internal successors, (71), 34 states have internal predecessors, (71), 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) Word has length 26
[2024-12-02 08:31:48,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:31:48,238 INFO L225 Difference]: With dead ends: 53
[2024-12-02 08:31:48,238 INFO L226 Difference]: Without dead ends: 0
[2024-12-02 08:31:48,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=892, Invalid=3140, Unknown=0, NotChecked=0, Total=4032
[2024-12-02 08:31:48,240 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 81 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 08:31:48,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 26 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 08:31:48,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-12-02 08:31:48,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-12-02 08:31:48,241 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)
[2024-12-02 08:31:48,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-12-02 08:31:48,242 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26
[2024-12-02 08:31:48,242 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:31:48,242 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-12-02 08:31:48,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.088235294117647) internal successors, (71), 34 states have internal predecessors, (71), 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)
[2024-12-02 08:31:48,242 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-12-02 08:31:48,243 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-12-02 08:31:48,245 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-12-02 08:31:48,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 08:31:48,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2024-12-02 08:31:48,448 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1]
[2024-12-02 08:31:48,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-12-02 08:31:51,012 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 08:31:51,022 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~a~0!offset
[2024-12-02 08:31:51,024 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1
[2024-12-02 08:31:51,024 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
[2024-12-02 08:31:51,024 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
[2024-12-02 08:31:51,024 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
[2024-12-02 08:31:51,024 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
[2024-12-02 08:31:51,024 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1
[2024-12-02 08:31:51,025 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
[2024-12-02 08:31:51,025 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
[2024-12-02 08:31:51,026 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1
[2024-12-02 08:31:51,026 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
[2024-12-02 08:31:51,026 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
[2024-12-02 08:31:51,026 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~a~0!offset
[2024-12-02 08:31:51,026 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
[2024-12-02 08:31:51,026 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1
[2024-12-02 08:31:51,026 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
[2024-12-02 08:31:51,026 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
[2024-12-02 08:31:51,026 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1
[2024-12-02 08:31:51,027 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
[2024-12-02 08:31:51,027 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
[2024-12-02 08:31:51,027 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~a~0!offset
[2024-12-02 08:31:51,027 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~a~0!offset
[2024-12-02 08:31:51,027 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1
[2024-12-02 08:31:51,027 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
[2024-12-02 08:31:51,027 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
[2024-12-02 08:31:51,027 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~a~0!offset
[2024-12-02 08:31:51,028 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1
[2024-12-02 08:31:51,028 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
[2024-12-02 08:31:51,028 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
[2024-12-02 08:31:51,028 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1
[2024-12-02 08:31:51,028 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
[2024-12-02 08:31:51,028 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
[2024-12-02 08:31:51,028 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1
[2024-12-02 08:31:51,028 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
[2024-12-02 08:31:51,028 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
[2024-12-02 08:31:51,029 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~a~0!offset
[2024-12-02 08:31:51,029 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1
[2024-12-02 08:31:51,029 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
[2024-12-02 08:31:51,029 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
[2024-12-02 08:31:51,029 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
[2024-12-02 08:31:51,029 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1
[2024-12-02 08:31:51,029 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
[2024-12-02 08:31:51,029 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
[2024-12-02 08:31:51,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:31:51 BoogieIcfgContainer
[2024-12-02 08:31:51,031 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 08:31:51,032 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 08:31:51,032 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 08:31:51,032 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 08:31:51,033 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:31:41" (3/4) ...
[2024-12-02 08:31:51,034 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-12-02 08:31:51,040 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges
[2024-12-02 08:31:51,040 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-12-02 08:31:51,040 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-12-02 08:31:51,040 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-12-02 08:31:51,102 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-02 08:31:51,102 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-02 08:31:51,102 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 08:31:51,103 INFO L158 Benchmark]: Toolchain (without parser) took 10530.30ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 117.9MB in the beginning and 150.9MB in the end (delta: -33.0MB). Peak memory consumption was 147.4MB. Max. memory is 16.1GB.
[2024-12-02 08:31:51,103 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 08:31:51,103 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.36ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 106.8MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 08:31:51,103 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.68ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 105.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 08:31:51,103 INFO L158 Benchmark]: Boogie Preprocessor took 31.95ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 104.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 08:31:51,104 INFO L158 Benchmark]: RCFGBuilder took 215.75ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 93.4MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 08:31:51,104 INFO L158 Benchmark]: TraceAbstraction took 10005.19ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 92.9MB in the beginning and 154.4MB in the end (delta: -61.6MB). Peak memory consumption was 130.7MB. Max. memory is 16.1GB.
[2024-12-02 08:31:51,104 INFO L158 Benchmark]: Witness Printer took 70.34ms. Allocated memory is still 327.2MB. Free memory was 154.4MB in the beginning and 150.9MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 08:31:51,105 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 174.36ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 106.8MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 26.68ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 105.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 31.95ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 104.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 215.75ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 93.4MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 10005.19ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 92.9MB in the beginning and 154.4MB in the end (delta: -61.6MB). Peak memory consumption was 130.7MB. Max. memory is 16.1GB.
* Witness Printer took 70.34ms. Allocated memory is still 327.2MB. Free memory was 154.4MB in the beginning and 150.9MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~a~0!offset
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#1
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#1
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#1
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~a~0!offset
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#1
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#1
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~a~0!offset
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~a~0!offset
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#1
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~a~0!offset
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#1
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#1
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#1
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: ~a~0!offset
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#1
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#1
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,<LOCAL,main>]]]
* 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: 8]: 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 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 7, TraceHistogramMax: 3, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 156 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156 mSDsluCounter, 155 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 744 IncrementalHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 72 mSDtfsCounter, 744 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 104 SyntacticMatches, 7 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1242 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=6, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 16 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 236 ConstructedInterpolants, 34 QuantifiedInterpolants, 2511 SizeOfPredicates, 14 NumberOfNonLiveVariables, 290 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 69/141 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 33]: Loop Invariant
Derived loop invariant: (0 <= i)
RESULT: Ultimate proved your program to be correct!
[2024-12-02 08:31:51,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202667d2-85ca-462e-9448-321d818dfac5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE