./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array7_pattern.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_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/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_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-patterns/array7_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/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_480af845-d894-4256-bbf2-32dd17c21c0d/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 85b55cdd1f26353e63ecc189ba28ba899672edc569fe3ef3f04470f2b5e667fa
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 12:39:13,364 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 12:39:13,418 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-12-02 12:39:13,422 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 12:39:13,422 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 12:39:13,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 12:39:13,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 12:39:13,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 12:39:13,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 12:39:13,443 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 12:39:13,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 12:39:13,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 12:39:13,443 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 12:39:13,443 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 12:39:13,444 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 12:39:13,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 12:39:13,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 12:39:13,444 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 12:39:13,444 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 12:39:13,444 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 12:39:13,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 12:39:13,444 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 12:39:13,444 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 12:39:13,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 12:39:13,445 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 12:39:13,445 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 12:39:13,445 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 12:39:13,445 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 12:39:13,445 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 12:39:13,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 12:39:13,445 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:39:13,445 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 12:39:13,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:39:13,446 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 12:39:13,446 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 12:39:13,446 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:39:13,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 12:39:13,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:39:13,446 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 12:39:13,446 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 12:39:13,446 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 12:39:13,446 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 12:39:13,447 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 12:39:13,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 12:39:13,447 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 12:39:13,447 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 12:39:13,447 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 12:39:13,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 12:39:13,447 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_480af845-d894-4256-bbf2-32dd17c21c0d/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 -> 85b55cdd1f26353e63ecc189ba28ba899672edc569fe3ef3f04470f2b5e667fa
[2024-12-02 12:39:13,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 12:39:13,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 12:39:13,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 12:39:13,662 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 12:39:13,663 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 12:39:13,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/array-patterns/array7_pattern.c
[2024-12-02 12:39:16,260 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/data/db132ea2e/359313300c6a4247b1118d6b4ef03515/FLAG020a02418
[2024-12-02 12:39:16,440 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 12:39:16,440 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/sv-benchmarks/c/array-patterns/array7_pattern.c
[2024-12-02 12:39:16,448 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/data/db132ea2e/359313300c6a4247b1118d6b4ef03515/FLAG020a02418
[2024-12-02 12:39:16,463 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/data/db132ea2e/359313300c6a4247b1118d6b4ef03515
[2024-12-02 12:39:16,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 12:39:16,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 12:39:16,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 12:39:16,468 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 12:39:16,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 12:39:16,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:39:16" (1/1) ...
[2024-12-02 12:39:16,474 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d021a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:16, skipping insertion in model container
[2024-12-02 12:39:16,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:39:16" (1/1) ...
[2024-12-02 12:39:16,487 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 12:39:16,616 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_480af845-d894-4256-bbf2-32dd17c21c0d/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388]
[2024-12-02 12:39:16,637 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:39:16,645 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 12:39:16,655 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_480af845-d894-4256-bbf2-32dd17c21c0d/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388]
[2024-12-02 12:39:16,665 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:39:16,680 INFO L204 MainTranslator]: Completed translation
[2024-12-02 12:39:16,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:16 WrapperNode
[2024-12-02 12:39:16,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 12:39:16,681 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 12:39:16,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 12:39:16,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 12:39:16,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:16" (1/1) ...
[2024-12-02 12:39:16,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:16" (1/1) ...
[2024-12-02 12:39:16,711 INFO L138 Inliner]: procedures = 16, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89
[2024-12-02 12:39:16,712 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 12:39:16,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 12:39:16,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 12:39:16,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 12:39:16,721 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:16" (1/1) ...
[2024-12-02 12:39:16,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:16" (1/1) ...
[2024-12-02 12:39:16,723 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:16" (1/1) ...
[2024-12-02 12:39:16,735 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 4 writes are split as follows [0, 2, 2].
[2024-12-02 12:39:16,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:16" (1/1) ...
[2024-12-02 12:39:16,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:16" (1/1) ...
[2024-12-02 12:39:16,740 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:16" (1/1) ...
[2024-12-02 12:39:16,740 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:16" (1/1) ...
[2024-12-02 12:39:16,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:16" (1/1) ...
[2024-12-02 12:39:16,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:16" (1/1) ...
[2024-12-02 12:39:16,745 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:16" (1/1) ...
[2024-12-02 12:39:16,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 12:39:16,747 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 12:39:16,748 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 12:39:16,748 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 12:39:16,749 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:16" (1/1) ...
[2024-12-02 12:39:16,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:39:16,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:39:16,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 12:39:16,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 12:39:16,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 12:39:16,808 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-12-02 12:39:16,808 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-12-02 12:39:16,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 12:39:16,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-12-02 12:39:16,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-12-02 12:39:16,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-12-02 12:39:16,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-02 12:39:16,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-02 12:39:16,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-12-02 12:39:16,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 12:39:16,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 12:39:16,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-02 12:39:16,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-02 12:39:16,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-12-02 12:39:16,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 12:39:16,874 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 12:39:16,876 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 12:39:17,005 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live.
[2024-12-02 12:39:17,005 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 12:39:17,013 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 12:39:17,013 INFO L312 CfgBuilder]: Removed 4 assume(true) statements.
[2024-12-02 12:39:17,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:39:17 BoogieIcfgContainer
[2024-12-02 12:39:17,014 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 12:39:17,016 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 12:39:17,016 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 12:39:17,020 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 12:39:17,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:39:16" (1/3) ...
[2024-12-02 12:39:17,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f106528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:39:17, skipping insertion in model container
[2024-12-02 12:39:17,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:39:16" (2/3) ...
[2024-12-02 12:39:17,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f106528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:39:17, skipping insertion in model container
[2024-12-02 12:39:17,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:39:17" (3/3) ...
[2024-12-02 12:39:17,022 INFO L128 eAbstractionObserver]: Analyzing ICFG array7_pattern.c
[2024-12-02 12:39:17,033 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 12:39:17,034 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG array7_pattern.c that has 2 procedures, 26 locations, 1 initial locations, 3 loop locations, and 1 error locations.
[2024-12-02 12:39:17,078 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 12:39:17,087 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;@2fe3c5be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 12:39:17,087 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 12:39:17,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 12:39:17,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-12-02 12:39:17,095 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:39:17,095 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:39:17,096 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:39:17,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:39:17,100 INFO L85 PathProgramCache]: Analyzing trace with hash 459959838, now seen corresponding path program 1 times
[2024-12-02 12:39:17,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:39:17,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114362650]
[2024-12-02 12:39:17,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:39:17,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:39:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:39:17,208 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 12:39:17,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:39:17,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114362650]
[2024-12-02 12:39:17,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114362650] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:39:17,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:39:17,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 12:39:17,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982817872]
[2024-12-02 12:39:17,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:39:17,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-02 12:39:17,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:39:17,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-02 12:39:17,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 12:39:17,230 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 12:39:17,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:39:17,242 INFO L93 Difference]: Finished difference Result 49 states and 71 transitions.
[2024-12-02 12:39:17,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-02 12:39:17,244 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15
[2024-12-02 12:39:17,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:39:17,248 INFO L225 Difference]: With dead ends: 49
[2024-12-02 12:39:17,248 INFO L226 Difference]: Without dead ends: 22
[2024-12-02 12:39:17,250 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 12:39:17,252 INFO L435 NwaCegarLoop]: 30 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, 30 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 12:39:17,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 12:39:17,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2024-12-02 12:39:17,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2024-12-02 12:39:17,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 12:39:17,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions.
[2024-12-02 12:39:17,277 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15
[2024-12-02 12:39:17,277 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:39:17,277 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions.
[2024-12-02 12:39:17,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 12:39:17,277 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions.
[2024-12-02 12:39:17,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2024-12-02 12:39:17,278 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:39:17,278 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:39:17,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 12:39:17,279 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:39:17,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:39:17,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1728336547, now seen corresponding path program 1 times
[2024-12-02 12:39:17,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:39:17,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100837523]
[2024-12-02 12:39:17,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:39:17,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:39:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:39:17,543 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-02 12:39:17,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:39:17,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100837523]
[2024-12-02 12:39:17,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100837523] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:39:17,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:39:17,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:39:17,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202451054]
[2024-12-02 12:39:17,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:39:17,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 12:39:17,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:39:17,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 12:39:17,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 12:39:17,546 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 12:39:17,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:39:17,565 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions.
[2024-12-02 12:39:17,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 12:39:17,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27
[2024-12-02 12:39:17,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:39:17,566 INFO L225 Difference]: With dead ends: 28
[2024-12-02 12:39:17,566 INFO L226 Difference]: Without dead ends: 24
[2024-12-02 12:39:17,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 12:39:17,567 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 4 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 12:39:17,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 59 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 12:39:17,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2024-12-02 12:39:17,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23.
[2024-12-02 12:39:17,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 12:39:17,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions.
[2024-12-02 12:39:17,572 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 27
[2024-12-02 12:39:17,573 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:39:17,573 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions.
[2024-12-02 12:39:17,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 12:39:17,573 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions.
[2024-12-02 12:39:17,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2024-12-02 12:39:17,574 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:39:17,574 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:39:17,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 12:39:17,574 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:39:17,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:39:17,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1282145209, now seen corresponding path program 1 times
[2024-12-02 12:39:17,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:39:17,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862353657]
[2024-12-02 12:39:17,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:39:17,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:39:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:39:17,707 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-02 12:39:17,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:39:17,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862353657]
[2024-12-02 12:39:17,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862353657] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:39:17,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:39:17,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 12:39:17,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283850220]
[2024-12-02 12:39:17,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:39:17,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 12:39:17,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:39:17,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 12:39:17,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:39:17,709 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 12:39:17,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:39:17,759 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions.
[2024-12-02 12:39:17,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:39:17,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29
[2024-12-02 12:39:17,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:39:17,760 INFO L225 Difference]: With dead ends: 43
[2024-12-02 12:39:17,761 INFO L226 Difference]: Without dead ends: 26
[2024-12-02 12:39:17,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:39:17,762 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 8 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 12:39:17,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 56 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 12:39:17,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2024-12-02 12:39:17,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24.
[2024-12-02 12:39:17,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 12:39:17,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions.
[2024-12-02 12:39:17,766 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 29
[2024-12-02 12:39:17,766 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:39:17,766 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions.
[2024-12-02 12:39:17,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 12:39:17,767 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions.
[2024-12-02 12:39:17,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-12-02 12:39:17,767 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:39:17,767 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:39:17,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 12:39:17,768 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:39:17,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:39:17,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1695575043, now seen corresponding path program 1 times
[2024-12-02 12:39:17,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:39:17,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069435158]
[2024-12-02 12:39:17,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:39:17,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:39:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:39:18,082 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-12-02 12:39:18,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:39:18,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069435158]
[2024-12-02 12:39:18,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069435158] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:39:18,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890153876]
[2024-12-02 12:39:18,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:39:18,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:39:18,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:39:18,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:39:18,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 12:39:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:39:18,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-12-02 12:39:18,183 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:39:18,322 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-12-02 12:39:18,322 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:39:18,586 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-12-02 12:39:18,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890153876] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:39:18,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 12:39:18,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 10] total 19
[2024-12-02 12:39:18,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440132484]
[2024-12-02 12:39:18,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:39:18,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-12-02 12:39:18,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:39:18,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-12-02 12:39:18,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342
[2024-12-02 12:39:18,589 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 19 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 7 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7)
[2024-12-02 12:39:18,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:39:18,792 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions.
[2024-12-02 12:39:18,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-12-02 12:39:18,793 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 7 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) Word has length 31
[2024-12-02 12:39:18,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:39:18,794 INFO L225 Difference]: With dead ends: 73
[2024-12-02 12:39:18,794 INFO L226 Difference]: Without dead ends: 42
[2024-12-02 12:39:18,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462
[2024-12-02 12:39:18,795 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 19 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 12:39:18,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 108 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 12:39:18,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2024-12-02 12:39:18,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28.
[2024-12-02 12:39:18,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 12:39:18,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions.
[2024-12-02 12:39:18,801 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 31
[2024-12-02 12:39:18,801 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:39:18,801 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions.
[2024-12-02 12:39:18,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 7 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7)
[2024-12-02 12:39:18,801 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions.
[2024-12-02 12:39:18,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2024-12-02 12:39:18,802 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:39:18,802 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:39:18,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 12:39:19,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:39:19,003 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:39:19,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:39:19,003 INFO L85 PathProgramCache]: Analyzing trace with hash -228852101, now seen corresponding path program 2 times
[2024-12-02 12:39:19,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:39:19,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624536280]
[2024-12-02 12:39:19,004 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 12:39:19,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:39:19,035 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 12:39:19,035 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 12:39:19,174 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-02 12:39:19,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:39:19,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624536280]
[2024-12-02 12:39:19,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624536280] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:39:19,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287639435]
[2024-12-02 12:39:19,174 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 12:39:19,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:39:19,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:39:19,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:39:19,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 12:39:19,261 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 12:39:19,261 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 12:39:19,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 12:39:19,264 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:39:19,345 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-12-02 12:39:19,345 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:39:19,435 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-02 12:39:19,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287639435] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:39:19,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 12:39:19,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14
[2024-12-02 12:39:19,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315937627]
[2024-12-02 12:39:19,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:39:19,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-12-02 12:39:19,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:39:19,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-12-02 12:39:19,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182
[2024-12-02 12:39:19,437 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 14 states have internal predecessors, (46), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7)
[2024-12-02 12:39:19,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:39:19,601 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions.
[2024-12-02 12:39:19,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 12:39:19,601 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 14 states have internal predecessors, (46), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 35
[2024-12-02 12:39:19,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:39:19,602 INFO L225 Difference]: With dead ends: 40
[2024-12-02 12:39:19,602 INFO L226 Difference]: Without dead ends: 36
[2024-12-02 12:39:19,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 61 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380
[2024-12-02 12:39:19,603 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 26 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 12:39:19,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 140 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 12:39:19,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2024-12-02 12:39:19,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36.
[2024-12-02 12:39:19,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 12:39:19,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions.
[2024-12-02 12:39:19,609 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 35
[2024-12-02 12:39:19,610 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:39:19,610 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions.
[2024-12-02 12:39:19,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 14 states have internal predecessors, (46), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7)
[2024-12-02 12:39:19,610 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions.
[2024-12-02 12:39:19,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40
[2024-12-02 12:39:19,611 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:39:19,611 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:39:19,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 12:39:19,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:39:19,811 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:39:19,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:39:19,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1737761597, now seen corresponding path program 3 times
[2024-12-02 12:39:19,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:39:19,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333814444]
[2024-12-02 12:39:19,812 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 12:39:19,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:39:19,904 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s)
[2024-12-02 12:39:19,904 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown
[2024-12-02 12:39:19,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1028376539]
[2024-12-02 12:39:19,907 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 12:39:19,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:39:19,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:39:19,911 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:39:19,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 12:39:20,172 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s)
[2024-12-02 12:39:20,173 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 12:39:20,175 WARN L254 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 86 conjuncts are in the unsatisfiable core
[2024-12-02 12:39:20,182 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:39:20,281 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 11 treesize of output 7
[2024-12-02 12:39:20,293 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 11 treesize of output 7
[2024-12-02 12:39:20,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20
[2024-12-02 12:39:20,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-12-02 12:39:20,596 INFO L349 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size
[2024-12-02 12:39:20,596 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 3 case distinctions, treesize of input 32 treesize of output 34
[2024-12-02 12:39:20,634 INFO L349 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size
[2024-12-02 12:39:20,634 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 3 case distinctions, treesize of input 28 treesize of output 30
[2024-12-02 12:39:23,352 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size
[2024-12-02 12:39:23,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 697 treesize of output 630
[2024-12-02 12:39:23,923 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size
[2024-12-02 12:39:23,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 526 treesize of output 475
[2024-12-02 12:39:24,319 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:24,322 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:24,325 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:24,327 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:24,329 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:24,333 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:24,337 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:24,341 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:24,342 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:24,346 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:24,350 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:24,353 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:24,356 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:24,358 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:24,364 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:24,367 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:24,431 INFO L349 Elim1Store]: treesize reduction 142, result has 0.7 percent of original size
[2024-12-02 12:39:24,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 8 stores, 7 select indices, 7 select index equivalence classes, 32 disjoint index pairs (out of 21 index pairs), introduced 15 new quantified variables, introduced 7 case distinctions, treesize of input 433 treesize of output 1571
[2024-12-02 12:39:28,440 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,471 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,493 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,502 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,533 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,550 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,558 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,562 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,570 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,575 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,582 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,612 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,633 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,644 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,650 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,682 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,702 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,711 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,718 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,739 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,767 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,797 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,811 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,839 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,882 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,889 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,903 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,908 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:39:28,909 INFO L224 Elim1Store]: Index analysis took 480 ms
[2024-12-02 12:39:29,083 INFO L349 Elim1Store]: treesize reduction 203, result has 0.5 percent of original size
[2024-12-02 12:39:29,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 12 stores, 8 select indices, 8 select index equivalence classes, 40 disjoint index pairs (out of 28 index pairs), introduced 20 new quantified variables, introduced 10 case distinctions, treesize of input 999 treesize of output 3379
[2024-12-02 12:41:35,551 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:35,588 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:35,622 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:35,648 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:35,711 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:35,743 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:35,786 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:35,863 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:35,896 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:35,916 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:35,957 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:35,965 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:35,986 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:36,000 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:36,020 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:36,035 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:36,050 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:36,059 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:36,112 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:41:36,640 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 12:41:36,774 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 12:41:37,157 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 12:41:37,202 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 12:41:37,613 INFO L224 Elim1Store]: Index analysis took 1769 ms
[2024-12-02 12:41:39,957 INFO L349 Elim1Store]: treesize reduction 626, result has 0.2 percent of original size
[2024-12-02 12:41:39,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 16 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 1799 treesize of output 4296
[2024-12-02 12:42:00,623 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 403 treesize of output 367
[2024-12-02 12:42:00,635 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,636 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,638 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,649 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,654 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,663 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,666 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,672 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,677 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,682 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,684 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,687 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,692 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,699 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,723 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,727 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,737 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,741 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,746 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,751 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,757 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,762 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,764 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,775 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,778 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,780 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,782 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,784 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,786 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,788 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,792 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,794 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,796 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,798 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,799 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,801 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:00,801 INFO L224 Elim1Store]: Index analysis took 140 ms
[2024-12-02 12:42:01,367 INFO L349 Elim1Store]: treesize reduction 178, result has 22.3 percent of original size
[2024-12-02 12:42:01,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 12 case distinctions, treesize of input 243 treesize of output 370
[2024-12-02 12:42:01,435 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,439 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,445 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,447 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,449 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,451 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,454 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,456 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,460 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,470 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,476 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,488 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,492 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,496 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,498 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,500 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,503 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,504 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,508 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,513 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,515 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,517 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,519 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,521 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,524 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,528 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,530 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,531 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,534 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,536 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,537 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,537 INFO L224 Elim1Store]: Index analysis took 106 ms
[2024-12-02 12:42:01,851 INFO L349 Elim1Store]: treesize reduction 8, result has 93.4 percent of original size
[2024-12-02 12:42:01,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 37 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 8 case distinctions, treesize of input 263 treesize of output 241
[2024-12-02 12:42:01,884 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 316 treesize of output 274
[2024-12-02 12:42:01,898 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,900 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,901 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,902 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,905 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,916 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,922 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,929 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,936 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,937 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,938 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,939 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,949 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,957 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,958 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,960 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,963 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,968 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,969 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,973 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,978 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,980 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,991 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:01,995 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:02,001 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:02,006 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:02,011 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:02,017 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:42:02,028 INFO L224 Elim1Store]: Index analysis took 113 ms
[2024-12-02 12:42:02,314 INFO L349 Elim1Store]: treesize reduction 8, result has 91.2 percent of original size
[2024-12-02 12:42:02,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 8 case distinctions, treesize of input 193 treesize of output 188
[2024-12-02 12:42:08,027 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-12-02 12:42:08,027 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:43:01,756 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 142 treesize of output 138
[2024-12-02 12:43:01,762 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 138 treesize of output 134
[2024-12-02 12:43:01,789 INFO L349 Elim1Store]: treesize reduction 9, result has 30.8 percent of original size
[2024-12-02 12:43:01,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3274 treesize of output 3158
[2024-12-02 12:43:01,859 INFO L349 Elim1Store]: treesize reduction 9, result has 30.8 percent of original size
[2024-12-02 12:43:01,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 8502 treesize of output 7669
[2024-12-02 12:43:02,318 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 271 treesize of output 263
[2024-12-02 12:43:02,324 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 263 treesize of output 255
[2024-12-02 12:43:02,358 INFO L349 Elim1Store]: treesize reduction 17, result has 19.0 percent of original size
[2024-12-02 12:43:02,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2879 treesize of output 2791
[2024-12-02 12:43:02,450 INFO L349 Elim1Store]: treesize reduction 17, result has 19.0 percent of original size
[2024-12-02 12:43:02,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 6818 treesize of output 6300
[2024-12-02 12:43:03,513 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-12-02 12:43:03,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:43:03,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333814444]
[2024-12-02 12:43:03,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-12-02 12:43:03,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028376539]
[2024-12-02 12:43:03,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028376539] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:43:03,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 12:43:03,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 21] total 43
[2024-12-02 12:43:03,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726275153]
[2024-12-02 12:43:03,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:43:03,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states
[2024-12-02 12:43:03,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:43:03,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants.
[2024-12-02 12:43:03,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1566, Unknown=2, NotChecked=0, Total=1806
[2024-12-02 12:43:03,517 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 43 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 37 states have internal predecessors, (57), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6)
[2024-12-02 12:43:13,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-12-02 12:43:16,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-12-02 12:43:20,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-12-02 12:43:53,463 WARN L286 SmtUtils]: Spent 11.13s on a formula simplification. DAG size of input: 253 DAG size of output: 243 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-12-02 12:43:57,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:44:01,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:44:05,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:44:09,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:44:44,411 WARN L286 SmtUtils]: Spent 10.84s on a formula simplification. DAG size of input: 253 DAG size of output: 243 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-12-02 12:44:48,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:44:52,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:44:56,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:45:00,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:45:04,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:45:08,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:45:12,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:45:15,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:45:19,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:45:23,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:45:27,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:45:31,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:45:58,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:46:02,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:46:06,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:46:10,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:46:14,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:46:18,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:46:22,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:46:50,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:46:54,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:46:58,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:47:02,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:47:04,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:47:08,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:47:12,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:47:16,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:47:20,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:47:24,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:47:29,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:47:33,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:47:37,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:47:41,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:47:45,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:48:16,022 WARN L286 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 224 DAG size of output: 196 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-12-02 12:48:20,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:48:21,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:48:27,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:48:31,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:48:35,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:48:40,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:48:44,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:48:48,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:48:51,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.14s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:48:54,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:48:56,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:49:00,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:49:02,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:49:27,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:49:34,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:50:11,001 WARN L286 SmtUtils]: Spent 13.69s on a formula simplification. DAG size of input: 257 DAG size of output: 199 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-12-02 12:50:15,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:50:18,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:50:22,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:50:26,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:50:30,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:50:34,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:50:38,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:50:43,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:50:47,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:50:51,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:50:55,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:50:59,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:51:04,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:51:08,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:51:11,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:51:32,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:51:36,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:51:38,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:51:42,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:51:46,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:51:50,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:51:54,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:51:58,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:52:02,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:52:07,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:52:10,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:52:14,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:52:26,665 WARN L286 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 403 DAG size of output: 353 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-12-02 12:52:30,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:52:35,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:52:39,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:52:43,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1]
[2024-12-02 12:52:57,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1]
[2024-12-02 12:53:02,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1]
[2024-12-02 12:53:16,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1]
[2024-12-02 12:53:20,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1]
[2024-12-02 12:53:25,238 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory")
[2024-12-02 12:53:25,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101
[2024-12-02 12:53:25,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1186 ImplicationChecksByTransitivity, 292.8s TimeCoverageRelationStatistics Valid=585, Invalid=3930, Unknown=41, NotChecked=0, Total=4556
[2024-12-02 12:53:25,240 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 48 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 55 mSolverCounterUnsat, 74 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 358.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 74 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 359.7s IncrementalHoareTripleChecker+Time
[2024-12-02 12:53:25,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 181 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 760 Invalid, 74 Unknown, 0 Unchecked, 359.7s Time]
[2024-12-02 12:53:25,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 12:53:25,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:53:25,441 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:665)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449)
at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1708)
at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:159)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:388)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:348)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:140)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: java.io.IOException: Stream closed
at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:447)
at java.base/java.io.OutputStream.write(OutputStream.java:167)
at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:125)
at java.base/java.io.BufferedOutputStream.implFlush(BufferedOutputStream.java:252)
at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:246)
at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:412)
at java.base/sun.nio.cs.StreamEncoder.lockedFlush(StreamEncoder.java:214)
at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:201)
at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:262)
at java.base/java.io.BufferedWriter.implFlush(BufferedWriter.java:372)
at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:359)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175)
... 36 more
[2024-12-02 12:53:25,445 INFO L158 Benchmark]: Toolchain (without parser) took 848978.76ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 118.1MB in the beginning and 932.7MB in the end (delta: -814.6MB). Peak memory consumption was 244.9MB. Max. memory is 16.1GB.
[2024-12-02 12:53:25,445 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 12:53:25,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.52ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 106.5MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 12:53:25,446 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.58ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 105.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 12:53:25,446 INFO L158 Benchmark]: Boogie Preprocessor took 34.66ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 103.5MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 12:53:25,446 INFO L158 Benchmark]: RCFGBuilder took 266.10ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 90.9MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 12:53:25,446 INFO L158 Benchmark]: TraceAbstraction took 848429.17ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 90.1MB in the beginning and 932.7MB in the end (delta: -842.6MB). Peak memory consumption was 219.8MB. Max. memory is 16.1GB.
[2024-12-02 12:53:25,447 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 212.52ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 106.5MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 30.58ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 105.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 34.66ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 103.5MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 266.10ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 90.9MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 848429.17ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 90.1MB in the beginning and 932.7MB in the end (delta: -842.6MB). Peak memory consumption was 219.8MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/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_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-patterns/array7_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/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 85b55cdd1f26353e63ecc189ba28ba899672edc569fe3ef3f04470f2b5e667fa
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 12:53:27,192 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 12:53:27,277 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-12-02 12:53:27,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 12:53:27,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 12:53:27,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 12:53:27,309 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 12:53:27,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 12:53:27,310 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 12:53:27,310 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 12:53:27,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 12:53:27,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 12:53:27,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 12:53:27,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 12:53:27,311 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 12:53:27,311 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 12:53:27,311 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 12:53:27,311 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 12:53:27,311 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 12:53:27,311 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 12:53:27,311 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 12:53:27,311 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 12:53:27,311 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 12:53:27,311 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 12:53:27,311 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-12-02 12:53:27,311 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-12-02 12:53:27,312 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 12:53:27,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 12:53:27,312 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 12:53:27,312 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 12:53:27,312 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 12:53:27,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 12:53:27,312 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:53:27,312 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 12:53:27,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:53:27,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 12:53:27,313 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 12:53:27,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:53:27,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 12:53:27,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:53:27,313 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 12:53:27,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 12:53:27,314 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 12:53:27,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 12:53:27,314 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-12-02 12:53:27,314 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-12-02 12:53:27,314 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 12:53:27,314 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 12:53:27,314 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 12:53:27,314 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 12:53:27,314 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_480af845-d894-4256-bbf2-32dd17c21c0d/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 -> 85b55cdd1f26353e63ecc189ba28ba899672edc569fe3ef3f04470f2b5e667fa
[2024-12-02 12:53:27,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 12:53:27,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 12:53:27,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 12:53:27,584 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 12:53:27,585 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 12:53:27,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/array-patterns/array7_pattern.c
[2024-12-02 12:53:30,270 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/data/1a9f5fd8f/03f3cb08d27046fbb5cf2e74380a805e/FLAG1faceac88
[2024-12-02 12:53:30,443 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 12:53:30,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/sv-benchmarks/c/array-patterns/array7_pattern.c
[2024-12-02 12:53:30,451 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/data/1a9f5fd8f/03f3cb08d27046fbb5cf2e74380a805e/FLAG1faceac88
[2024-12-02 12:53:30,467 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/data/1a9f5fd8f/03f3cb08d27046fbb5cf2e74380a805e
[2024-12-02 12:53:30,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 12:53:30,471 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 12:53:30,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 12:53:30,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 12:53:30,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 12:53:30,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:53:30" (1/1) ...
[2024-12-02 12:53:30,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fed5992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:30, skipping insertion in model container
[2024-12-02 12:53:30,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:53:30" (1/1) ...
[2024-12-02 12:53:30,493 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 12:53:30,634 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_480af845-d894-4256-bbf2-32dd17c21c0d/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388]
[2024-12-02 12:53:30,656 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:53:30,666 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 12:53:30,676 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_480af845-d894-4256-bbf2-32dd17c21c0d/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388]
[2024-12-02 12:53:30,687 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:53:30,701 INFO L204 MainTranslator]: Completed translation
[2024-12-02 12:53:30,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:30 WrapperNode
[2024-12-02 12:53:30,701 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 12:53:30,702 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 12:53:30,702 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 12:53:30,702 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 12:53:30,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:30" (1/1) ...
[2024-12-02 12:53:30,717 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:30" (1/1) ...
[2024-12-02 12:53:30,734 INFO L138 Inliner]: procedures = 18, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85
[2024-12-02 12:53:30,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 12:53:30,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 12:53:30,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 12:53:30,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 12:53:30,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:30" (1/1) ...
[2024-12-02 12:53:30,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:30" (1/1) ...
[2024-12-02 12:53:30,746 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:30" (1/1) ...
[2024-12-02 12:53:30,759 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 4 writes are split as follows [0, 2, 2].
[2024-12-02 12:53:30,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:30" (1/1) ...
[2024-12-02 12:53:30,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:30" (1/1) ...
[2024-12-02 12:53:30,766 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:30" (1/1) ...
[2024-12-02 12:53:30,767 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:30" (1/1) ...
[2024-12-02 12:53:30,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:30" (1/1) ...
[2024-12-02 12:53:30,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:30" (1/1) ...
[2024-12-02 12:53:30,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:30" (1/1) ...
[2024-12-02 12:53:30,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 12:53:30,776 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 12:53:30,776 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 12:53:30,776 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 12:53:30,777 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:30" (1/1) ...
[2024-12-02 12:53:30,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:53:30,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:53:30,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 12:53:30,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 12:53:30,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 12:53:30,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-12-02 12:53:30,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-12-02 12:53:30,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-12-02 12:53:30,834 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-12-02 12:53:30,834 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-12-02 12:53:30,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-12-02 12:53:30,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-12-02 12:53:30,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-12-02 12:53:30,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2024-12-02 12:53:30,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 12:53:30,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 12:53:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 12:53:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-12-02 12:53:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-12-02 12:53:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2
[2024-12-02 12:53:30,904 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 12:53:30,906 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 12:53:31,105 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live.
[2024-12-02 12:53:31,106 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 12:53:31,112 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 12:53:31,112 INFO L312 CfgBuilder]: Removed 4 assume(true) statements.
[2024-12-02 12:53:31,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:53:31 BoogieIcfgContainer
[2024-12-02 12:53:31,113 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 12:53:31,115 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 12:53:31,115 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 12:53:31,120 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 12:53:31,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:53:30" (1/3) ...
[2024-12-02 12:53:31,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d36f839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:53:31, skipping insertion in model container
[2024-12-02 12:53:31,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:30" (2/3) ...
[2024-12-02 12:53:31,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d36f839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:53:31, skipping insertion in model container
[2024-12-02 12:53:31,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:53:31" (3/3) ...
[2024-12-02 12:53:31,122 INFO L128 eAbstractionObserver]: Analyzing ICFG array7_pattern.c
[2024-12-02 12:53:31,137 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 12:53:31,138 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG array7_pattern.c that has 2 procedures, 26 locations, 1 initial locations, 3 loop locations, and 1 error locations.
[2024-12-02 12:53:31,176 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 12:53:31,185 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;@36834cdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 12:53:31,185 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 12:53:31,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 12:53:31,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-12-02 12:53:31,195 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:53:31,195 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:53:31,196 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:53:31,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:53:31,201 INFO L85 PathProgramCache]: Analyzing trace with hash 459959838, now seen corresponding path program 1 times
[2024-12-02 12:53:31,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:53:31,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [363923316]
[2024-12-02 12:53:31,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:53:31,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:53:31,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:53:31,212 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:53:31,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 12:53:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:53:31,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-12-02 12:53:31,293 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:53:31,308 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 12:53:31,309 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:53:31,309 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:53:31,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363923316]
[2024-12-02 12:53:31,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363923316] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:53:31,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:53:31,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 12:53:31,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918390912]
[2024-12-02 12:53:31,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:53:31,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-02 12:53:31,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:53:31,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-02 12:53:31,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 12:53:31,333 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 12:53:31,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:53:31,349 INFO L93 Difference]: Finished difference Result 49 states and 71 transitions.
[2024-12-02 12:53:31,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-02 12:53:31,351 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15
[2024-12-02 12:53:31,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:53:31,356 INFO L225 Difference]: With dead ends: 49
[2024-12-02 12:53:31,357 INFO L226 Difference]: Without dead ends: 22
[2024-12-02 12:53:31,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 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 12:53:31,362 INFO L435 NwaCegarLoop]: 30 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, 30 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 12:53:31,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 12:53:31,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2024-12-02 12:53:31,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2024-12-02 12:53:31,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 12:53:31,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions.
[2024-12-02 12:53:31,396 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15
[2024-12-02 12:53:31,396 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:53:31,396 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions.
[2024-12-02 12:53:31,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 12:53:31,396 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions.
[2024-12-02 12:53:31,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2024-12-02 12:53:31,398 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:53:31,398 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:53:31,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 12:53:31,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:53:31,599 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:53:31,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:53:31,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1728336547, now seen corresponding path program 1 times
[2024-12-02 12:53:31,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:53:31,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [736471801]
[2024-12-02 12:53:31,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:53:31,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:53:31,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:53:31,602 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:53:31,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 12:53:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:53:31,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 12:53:31,676 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:53:31,740 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-02 12:53:31,740 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:53:31,741 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:53:31,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736471801]
[2024-12-02 12:53:31,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736471801] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:53:31,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:53:31,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:53:31,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168266657]
[2024-12-02 12:53:31,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:53:31,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 12:53:31,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:53:31,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 12:53:31,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 12:53:31,743 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 12:53:31,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:53:31,772 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions.
[2024-12-02 12:53:31,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 12:53:31,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27
[2024-12-02 12:53:31,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:53:31,774 INFO L225 Difference]: With dead ends: 28
[2024-12-02 12:53:31,774 INFO L226 Difference]: Without dead ends: 24
[2024-12-02 12:53:31,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 12:53:31,775 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 4 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 12:53:31,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 59 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 12:53:31,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2024-12-02 12:53:31,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23.
[2024-12-02 12:53:31,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 12:53:31,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions.
[2024-12-02 12:53:31,781 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 27
[2024-12-02 12:53:31,782 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:53:31,782 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions.
[2024-12-02 12:53:31,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 12:53:31,782 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions.
[2024-12-02 12:53:31,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2024-12-02 12:53:31,783 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:53:31,783 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:53:31,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 12:53:31,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:53:31,984 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:53:31,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:53:31,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1282145209, now seen corresponding path program 1 times
[2024-12-02 12:53:31,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:53:31,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1799730726]
[2024-12-02 12:53:31,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:53:31,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:53:31,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:53:31,987 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:53:31,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 12:53:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:53:32,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 12:53:32,066 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:53:32,144 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-12-02 12:53:32,144 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:53:32,144 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:53:32,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799730726]
[2024-12-02 12:53:32,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799730726] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:53:32,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:53:32,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 12:53:32,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527589448]
[2024-12-02 12:53:32,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:53:32,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 12:53:32,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:53:32,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 12:53:32,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-12-02 12:53:32,146 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 12:53:32,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:53:32,347 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions.
[2024-12-02 12:53:32,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-12-02 12:53:32,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29
[2024-12-02 12:53:32,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:53:32,349 INFO L225 Difference]: With dead ends: 47
[2024-12-02 12:53:32,349 INFO L226 Difference]: Without dead ends: 30
[2024-12-02 12:53:32,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-12-02 12:53:32,350 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 22 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 12:53:32,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 52 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 12:53:32,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2024-12-02 12:53:32,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28.
[2024-12-02 12:53:32,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 12:53:32,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions.
[2024-12-02 12:53:32,357 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 29
[2024-12-02 12:53:32,357 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:53:32,357 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions.
[2024-12-02 12:53:32,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 12:53:32,357 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions.
[2024-12-02 12:53:32,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-12-02 12:53:32,358 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:53:32,358 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:53:32,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 12:53:32,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:53:32,559 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:53:32,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:53:32,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1695575043, now seen corresponding path program 1 times
[2024-12-02 12:53:32,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:53:32,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726709500]
[2024-12-02 12:53:32,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:53:32,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:53:32,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:53:32,561 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:53:32,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 12:53:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:53:32,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-12-02 12:53:32,661 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:53:33,060 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-12-02 12:53:33,061 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:53:33,634 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:53:33,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726709500]
[2024-12-02 12:53:33,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726709500] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:53:33,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [838728454]
[2024-12-02 12:53:33,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:53:33,634 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-12-02 12:53:33,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/cvc4
[2024-12-02 12:53:33,636 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-12-02 12:53:33,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2024-12-02 12:53:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:53:33,847 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-12-02 12:53:33,849 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:53:38,932 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-12-02 12:53:38,933 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:53:40,226 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-12-02 12:53:40,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [838728454] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:53:40,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 12:53:40,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 10] total 24
[2024-12-02 12:53:40,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566199455]
[2024-12-02 12:53:40,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:53:40,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-12-02 12:53:40,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:53:40,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-12-02 12:53:40,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=454, Unknown=1, NotChecked=0, Total=600
[2024-12-02 12:53:40,229 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 24 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 20 states have internal predecessors, (41), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9)
[2024-12-02 12:53:42,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:53:42,784 INFO L93 Difference]: Finished difference Result 75 states and 84 transitions.
[2024-12-02 12:53:42,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-12-02 12:53:42,786 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 20 states have internal predecessors, (41), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) Word has length 31
[2024-12-02 12:53:42,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:53:42,786 INFO L225 Difference]: With dead ends: 75
[2024-12-02 12:53:42,786 INFO L226 Difference]: Without dead ends: 44
[2024-12-02 12:53:42,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 79 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=289, Invalid=970, Unknown=1, NotChecked=0, Total=1260
[2024-12-02 12:53:42,787 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 85 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-12-02 12:53:42,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 136 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-12-02 12:53:42,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2024-12-02 12:53:42,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 32.
[2024-12-02 12:53:42,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 12:53:42,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions.
[2024-12-02 12:53:42,793 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 31
[2024-12-02 12:53:42,793 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:53:42,793 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions.
[2024-12-02 12:53:42,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 20 states have internal predecessors, (41), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9)
[2024-12-02 12:53:42,793 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions.
[2024-12-02 12:53:42,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2024-12-02 12:53:42,794 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:53:42,794 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:53:42,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-12-02 12:53:42,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0
[2024-12-02 12:53:43,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt
[2024-12-02 12:53:43,195 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:53:43,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:53:43,195 INFO L85 PathProgramCache]: Analyzing trace with hash -228852101, now seen corresponding path program 2 times
[2024-12-02 12:53:43,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:53:43,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [885573952]
[2024-12-02 12:53:43,196 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 12:53:43,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:53:43,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:53:43,197 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:53:43,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-12-02 12:53:43,308 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 12:53:43,308 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 12:53:43,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-02 12:53:43,320 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:53:43,866 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-12-02 12:53:43,866 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:53:44,472 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2024-12-02 12:53:44,473 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:53:44,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885573952]
[2024-12-02 12:53:44,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885573952] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:53:44,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 12:53:44,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14
[2024-12-02 12:53:44,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675094820]
[2024-12-02 12:53:44,473 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:53:44,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-12-02 12:53:44,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:53:44,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-12-02 12:53:44,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182
[2024-12-02 12:53:44,475 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6)
[2024-12-02 12:53:45,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:53:45,173 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions.
[2024-12-02 12:53:45,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-12-02 12:53:45,174 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 35
[2024-12-02 12:53:45,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:53:45,175 INFO L225 Difference]: With dead ends: 39
[2024-12-02 12:53:45,175 INFO L226 Difference]: Without dead ends: 35
[2024-12-02 12:53:45,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272
[2024-12-02 12:53:45,176 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 12:53:45,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 94 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 12:53:45,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2024-12-02 12:53:45,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34.
[2024-12-02 12:53:45,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 12:53:45,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions.
[2024-12-02 12:53:45,182 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 35
[2024-12-02 12:53:45,182 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:53:45,182 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions.
[2024-12-02 12:53:45,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6)
[2024-12-02 12:53:45,182 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions.
[2024-12-02 12:53:45,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2024-12-02 12:53:45,183 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:53:45,184 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:53:45,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-12-02 12:53:45,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:53:45,384 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:53:45,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:53:45,384 INFO L85 PathProgramCache]: Analyzing trace with hash -944760289, now seen corresponding path program 3 times
[2024-12-02 12:53:45,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:53:45,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [356864877]
[2024-12-02 12:53:45,385 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 12:53:45,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:53:45,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:53:45,386 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:53:45,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-12-02 12:53:45,465 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2024-12-02 12:53:45,465 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 12:53:45,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-12-02 12:53:45,470 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:53:47,546 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-12-02 12:53:47,546 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:53:48,892 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-12-02 12:53:48,892 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:53:48,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356864877]
[2024-12-02 12:53:48,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356864877] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:53:48,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 12:53:48,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2024-12-02 12:53:48,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083879211]
[2024-12-02 12:53:48,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:53:48,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-12-02 12:53:48,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:53:48,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-12-02 12:53:48,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380
[2024-12-02 12:53:48,894 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 20 states, 17 states have (on average 2.588235294117647) internal successors, (44), 18 states have internal predecessors, (44), 5 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6)
[2024-12-02 12:53:52,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:53:52,439 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions.
[2024-12-02 12:53:52,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2024-12-02 12:53:52,441 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 2.588235294117647) internal successors, (44), 18 states have internal predecessors, (44), 5 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 37
[2024-12-02 12:53:52,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:53:52,442 INFO L225 Difference]: With dead ends: 48
[2024-12-02 12:53:52,442 INFO L226 Difference]: Without dead ends: 44
[2024-12-02 12:53:52,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 51 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=182, Invalid=630, Unknown=0, NotChecked=0, Total=812
[2024-12-02 12:53:52,444 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 37 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2024-12-02 12:53:52,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 87 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2024-12-02 12:53:52,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2024-12-02 12:53:52,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36.
[2024-12-02 12:53:52,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 12:53:52,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions.
[2024-12-02 12:53:52,452 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 37
[2024-12-02 12:53:52,452 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:53:52,452 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions.
[2024-12-02 12:53:52,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 2.588235294117647) internal successors, (44), 18 states have internal predecessors, (44), 5 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6)
[2024-12-02 12:53:52,453 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions.
[2024-12-02 12:53:52,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40
[2024-12-02 12:53:52,453 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:53:52,453 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:53:52,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-12-02 12:53:52,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:53:52,654 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:53:52,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:53:52,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1737761597, now seen corresponding path program 4 times
[2024-12-02 12:53:52,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:53:52,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1485508454]
[2024-12-02 12:53:52,655 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-12-02 12:53:52,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:53:52,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:53:52,656 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:53:52,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480af845-d894-4256-bbf2-32dd17c21c0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-12-02 12:53:52,784 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-12-02 12:53:52,784 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 12:53:52,796 WARN L254 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 55 conjuncts are in the unsatisfiable core
[2024-12-02 12:53:52,805 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:53:53,252 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 11 treesize of output 7
[2024-12-02 12:53:53,276 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 11 treesize of output 7
[2024-12-02 12:53:53,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20
[2024-12-02 12:53:53,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 12:53:54,141 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:53:54,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 32
[2024-12-02 12:53:54,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-12-02 12:53:57,232 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:53:57,244 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:53:57,260 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:53:57,285 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:53:57,325 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:53:57,759 INFO L349 Elim1Store]: treesize reduction 170, result has 13.7 percent of original size
[2024-12-02 12:53:57,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 69 treesize of output 95
[2024-12-02 12:53:57,808 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:53:57,816 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:53:57,823 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:53:57,851 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:53:57,891 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:53:57,908 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:53:58,405 INFO L349 Elim1Store]: treesize reduction 262, result has 16.8 percent of original size
[2024-12-02 12:53:58,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 91 treesize of output 135