./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label09.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_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/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_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/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_88bc8aac-0489-4e68-a4d6-022f0bb62518/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 0cc06aa14e3792b39a1660d29e8d4f8f87253b3eeb122cbd1713b212029132ef
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 13:31:15,956 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 13:31:16,009 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-12-02 13:31:16,012 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 13:31:16,013 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 13:31:16,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 13:31:16,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 13:31:16,034 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 13:31:16,034 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 13:31:16,035 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 13:31:16,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 13:31:16,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 13:31:16,035 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 13:31:16,035 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 13:31:16,035 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 13:31:16,036 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 13:31:16,036 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 13:31:16,036 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 13:31:16,036 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 13:31:16,036 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 13:31:16,036 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 13:31:16,036 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 13:31:16,037 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 13:31:16,037 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 13:31:16,037 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 13:31:16,037 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 13:31:16,037 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 13:31:16,037 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 13:31:16,037 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 13:31:16,037 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 13:31:16,037 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 13:31:16,037 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 13:31:16,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 13:31:16,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 13:31:16,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 13:31:16,038 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 13:31:16,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 13:31:16,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 13:31:16,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 13:31:16,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 13:31:16,038 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 13:31:16,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 13:31:16,039 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 13:31:16,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 13:31:16,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 13:31:16,039 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 13:31:16,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 13:31:16,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 13:31:16,039 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_88bc8aac-0489-4e68-a4d6-022f0bb62518/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 -> 0cc06aa14e3792b39a1660d29e8d4f8f87253b3eeb122cbd1713b212029132ef
[2024-12-02 13:31:16,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 13:31:16,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 13:31:16,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 13:31:16,258 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 13:31:16,258 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 13:31:16,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/eca-rers2012/Problem10_label09.c
[2024-12-02 13:31:18,860 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/data/cc684d977/6ce6ef8fabed420aa48ef40e7d761ba0/FLAG10be1d450
[2024-12-02 13:31:19,129 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 13:31:19,130 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/sv-benchmarks/c/eca-rers2012/Problem10_label09.c
[2024-12-02 13:31:19,142 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/data/cc684d977/6ce6ef8fabed420aa48ef40e7d761ba0/FLAG10be1d450
[2024-12-02 13:31:19,433 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/data/cc684d977/6ce6ef8fabed420aa48ef40e7d761ba0
[2024-12-02 13:31:19,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 13:31:19,436 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 13:31:19,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 13:31:19,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 13:31:19,440 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 13:31:19,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:31:19" (1/1) ...
[2024-12-02 13:31:19,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31737885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:19, skipping insertion in model container
[2024-12-02 13:31:19,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:31:19" (1/1) ...
[2024-12-02 13:31:19,467 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 13:31:19,640 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_88bc8aac-0489-4e68-a4d6-022f0bb62518/sv-benchmarks/c/eca-rers2012/Problem10_label09.c[6451,6464]
[2024-12-02 13:31:19,733 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 13:31:19,743 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 13:31:19,770 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_88bc8aac-0489-4e68-a4d6-022f0bb62518/sv-benchmarks/c/eca-rers2012/Problem10_label09.c[6451,6464]
[2024-12-02 13:31:19,822 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 13:31:19,836 INFO L204 MainTranslator]: Completed translation
[2024-12-02 13:31:19,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:19 WrapperNode
[2024-12-02 13:31:19,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 13:31:19,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 13:31:19,838 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 13:31:19,838 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 13:31:19,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:19" (1/1) ...
[2024-12-02 13:31:19,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:19" (1/1) ...
[2024-12-02 13:31:19,898 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597
[2024-12-02 13:31:19,898 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 13:31:19,899 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 13:31:19,899 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 13:31:19,899 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 13:31:19,908 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:19" (1/1) ...
[2024-12-02 13:31:19,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:19" (1/1) ...
[2024-12-02 13:31:19,913 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:19" (1/1) ...
[2024-12-02 13:31:19,932 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-12-02 13:31:19,932 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:19" (1/1) ...
[2024-12-02 13:31:19,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:19" (1/1) ...
[2024-12-02 13:31:19,947 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:19" (1/1) ...
[2024-12-02 13:31:19,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:19" (1/1) ...
[2024-12-02 13:31:19,956 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:19" (1/1) ...
[2024-12-02 13:31:19,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:19" (1/1) ...
[2024-12-02 13:31:19,963 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:19" (1/1) ...
[2024-12-02 13:31:19,970 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 13:31:19,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 13:31:19,971 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 13:31:19,971 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 13:31:19,972 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:19" (1/1) ...
[2024-12-02 13:31:19,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 13:31:19,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 13:31:19,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 13:31:19,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 13:31:20,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 13:31:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 13:31:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 13:31:20,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 13:31:20,067 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 13:31:20,068 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 13:31:20,956 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live.
[2024-12-02 13:31:20,956 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 13:31:20,968 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 13:31:20,969 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-12-02 13:31:20,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:31:20 BoogieIcfgContainer
[2024-12-02 13:31:20,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 13:31:20,971 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 13:31:20,971 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 13:31:20,975 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 13:31:20,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:31:19" (1/3) ...
[2024-12-02 13:31:20,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d21e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:31:20, skipping insertion in model container
[2024-12-02 13:31:20,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:19" (2/3) ...
[2024-12-02 13:31:20,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d21e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:31:20, skipping insertion in model container
[2024-12-02 13:31:20,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:31:20" (3/3) ...
[2024-12-02 13:31:20,978 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem10_label09.c
[2024-12-02 13:31:20,992 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 13:31:20,994 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem10_label09.c that has 1 procedures, 206 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 13:31:21,050 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 13:31:21,062 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;@738e733f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 13:31:21,062 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 13:31:21,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:21,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-12-02 13:31:21,073 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 13:31:21,074 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:31:21,074 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 13:31:21,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:31:21,079 INFO L85 PathProgramCache]: Analyzing trace with hash -2158734, now seen corresponding path program 1 times
[2024-12-02 13:31:21,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 13:31:21,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305522669]
[2024-12-02 13:31:21,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:31:21,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 13:31:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:31:21,390 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 13:31:21,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 13:31:21,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305522669]
[2024-12-02 13:31:21,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305522669] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 13:31:21,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 13:31:21,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 13:31:21,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132469602]
[2024-12-02 13:31:21,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 13:31:21,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 13:31:21,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 13:31:21,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 13:31:21,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 13:31:21,418 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:22,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 13:31:22,236 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions.
[2024-12-02 13:31:22,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 13:31:22,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56
[2024-12-02 13:31:22,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 13:31:22,247 INFO L225 Difference]: With dead ends: 552
[2024-12-02 13:31:22,247 INFO L226 Difference]: Without dead ends: 282
[2024-12-02 13:31:22,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 13:31:22,253 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 107 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-12-02 13:31:22,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 120 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-12-02 13:31:22,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states.
[2024-12-02 13:31:22,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282.
[2024-12-02 13:31:22,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.3416370106761566) internal successors, (377), 281 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:22,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 377 transitions.
[2024-12-02 13:31:22,297 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 377 transitions. Word has length 56
[2024-12-02 13:31:22,297 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 13:31:22,297 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 377 transitions.
[2024-12-02 13:31:22,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:22,297 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 377 transitions.
[2024-12-02 13:31:22,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123
[2024-12-02 13:31:22,301 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 13:31:22,301 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:31:22,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 13:31:22,302 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 13:31:22,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:31:22,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1351612926, now seen corresponding path program 1 times
[2024-12-02 13:31:22,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 13:31:22,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353688496]
[2024-12-02 13:31:22,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:31:22,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 13:31:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:31:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2024-12-02 13:31:22,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 13:31:22,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353688496]
[2024-12-02 13:31:22,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353688496] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 13:31:22,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934338752]
[2024-12-02 13:31:22,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:31:22,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 13:31:22,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 13:31:22,731 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 13:31:22,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 13:31:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:31:22,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-12-02 13:31:22,818 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 13:31:23,016 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked.
[2024-12-02 13:31:23,017 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 13:31:23,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934338752] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 13:31:23,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 13:31:23,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4
[2024-12-02 13:31:23,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586009264]
[2024-12-02 13:31:23,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 13:31:23,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 13:31:23,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 13:31:23,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 13:31:23,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 13:31:23,019 INFO L87 Difference]: Start difference. First operand 282 states and 377 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:23,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 13:31:23,473 INFO L93 Difference]: Finished difference Result 562 states and 752 transitions.
[2024-12-02 13:31:23,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 13:31:23,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122
[2024-12-02 13:31:23,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 13:31:23,478 INFO L225 Difference]: With dead ends: 562
[2024-12-02 13:31:23,478 INFO L226 Difference]: Without dead ends: 560
[2024-12-02 13:31:23,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 13:31:23,479 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 114 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 13:31:23,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 11 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 13:31:23,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states.
[2024-12-02 13:31:23,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 421.
[2024-12-02 13:31:23,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.4071428571428573) internal successors, (591), 420 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:23,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 591 transitions.
[2024-12-02 13:31:23,503 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 591 transitions. Word has length 122
[2024-12-02 13:31:23,503 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 13:31:23,503 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 591 transitions.
[2024-12-02 13:31:23,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:23,504 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 591 transitions.
[2024-12-02 13:31:23,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-12-02 13:31:23,506 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 13:31:23,506 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:31:23,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 13:31:23,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 13:31:23,707 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 13:31:23,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:31:23,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1832463333, now seen corresponding path program 1 times
[2024-12-02 13:31:23,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 13:31:23,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58739132]
[2024-12-02 13:31:23,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:31:23,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 13:31:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:31:24,008 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 13:31:24,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 13:31:24,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58739132]
[2024-12-02 13:31:24,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58739132] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 13:31:24,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 13:31:24,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 13:31:24,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191830364]
[2024-12-02 13:31:24,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 13:31:24,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 13:31:24,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 13:31:24,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 13:31:24,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 13:31:24,010 INFO L87 Difference]: Start difference. First operand 421 states and 591 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:24,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 13:31:24,422 INFO L93 Difference]: Finished difference Result 979 states and 1339 transitions.
[2024-12-02 13:31:24,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 13:31:24,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125
[2024-12-02 13:31:24,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 13:31:24,426 INFO L225 Difference]: With dead ends: 979
[2024-12-02 13:31:24,426 INFO L226 Difference]: Without dead ends: 560
[2024-12-02 13:31:24,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 13:31:24,428 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 72 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 13:31:24,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 77 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 13:31:24,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states.
[2024-12-02 13:31:24,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560.
[2024-12-02 13:31:24,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.3237924865831843) internal successors, (740), 559 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:24,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 740 transitions.
[2024-12-02 13:31:24,447 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 740 transitions. Word has length 125
[2024-12-02 13:31:24,448 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 13:31:24,448 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 740 transitions.
[2024-12-02 13:31:24,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:24,448 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 740 transitions.
[2024-12-02 13:31:24,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-12-02 13:31:24,451 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 13:31:24,451 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:31:24,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 13:31:24,451 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 13:31:24,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:31:24,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1619344244, now seen corresponding path program 1 times
[2024-12-02 13:31:24,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 13:31:24,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011822050]
[2024-12-02 13:31:24,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:31:24,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 13:31:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:31:24,820 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 35 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 13:31:24,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 13:31:24,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011822050]
[2024-12-02 13:31:24,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011822050] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 13:31:24,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860040289]
[2024-12-02 13:31:24,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:31:24,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 13:31:24,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 13:31:24,823 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 13:31:24,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 13:31:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:31:24,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-12-02 13:31:24,900 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 13:31:24,980 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 13:31:24,980 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 13:31:24,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860040289] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 13:31:24,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 13:31:24,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6
[2024-12-02 13:31:24,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124030560]
[2024-12-02 13:31:24,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 13:31:24,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 13:31:24,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 13:31:24,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 13:31:24,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-12-02 13:31:24,982 INFO L87 Difference]: Start difference. First operand 560 states and 740 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:25,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 13:31:25,456 INFO L93 Difference]: Finished difference Result 1257 states and 1758 transitions.
[2024-12-02 13:31:25,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 13:31:25,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131
[2024-12-02 13:31:25,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 13:31:25,460 INFO L225 Difference]: With dead ends: 1257
[2024-12-02 13:31:25,460 INFO L226 Difference]: Without dead ends: 838
[2024-12-02 13:31:25,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-12-02 13:31:25,461 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 91 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 13:31:25,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 77 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 13:31:25,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states.
[2024-12-02 13:31:25,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 699.
[2024-12-02 13:31:25,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.32378223495702) internal successors, (924), 698 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:25,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 924 transitions.
[2024-12-02 13:31:25,481 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 924 transitions. Word has length 131
[2024-12-02 13:31:25,482 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 13:31:25,482 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 924 transitions.
[2024-12-02 13:31:25,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:25,482 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 924 transitions.
[2024-12-02 13:31:25,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192
[2024-12-02 13:31:25,485 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 13:31:25,485 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:31:25,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 13:31:25,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 13:31:25,685 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 13:31:25,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:31:25,686 INFO L85 PathProgramCache]: Analyzing trace with hash -484638449, now seen corresponding path program 1 times
[2024-12-02 13:31:25,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 13:31:25,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321532147]
[2024-12-02 13:31:25,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:31:25,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 13:31:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:31:25,856 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked.
[2024-12-02 13:31:25,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 13:31:25,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321532147]
[2024-12-02 13:31:25,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321532147] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 13:31:25,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 13:31:25,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 13:31:25,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554746363]
[2024-12-02 13:31:25,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 13:31:25,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 13:31:25,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 13:31:25,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 13:31:25,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 13:31:25,858 INFO L87 Difference]: Start difference. First operand 699 states and 924 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:26,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 13:31:26,279 INFO L93 Difference]: Finished difference Result 1535 states and 2040 transitions.
[2024-12-02 13:31:26,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 13:31:26,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191
[2024-12-02 13:31:26,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 13:31:26,283 INFO L225 Difference]: With dead ends: 1535
[2024-12-02 13:31:26,283 INFO L226 Difference]: Without dead ends: 977
[2024-12-02 13:31:26,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 13:31:26,285 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 107 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 13:31:26,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 34 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 13:31:26,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states.
[2024-12-02 13:31:26,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977.
[2024-12-02 13:31:26,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.2059426229508197) internal successors, (1177), 976 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:26,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1177 transitions.
[2024-12-02 13:31:26,308 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1177 transitions. Word has length 191
[2024-12-02 13:31:26,308 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 13:31:26,308 INFO L471 AbstractCegarLoop]: Abstraction has 977 states and 1177 transitions.
[2024-12-02 13:31:26,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:26,308 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1177 transitions.
[2024-12-02 13:31:26,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209
[2024-12-02 13:31:26,311 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 13:31:26,311 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:31:26,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 13:31:26,312 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 13:31:26,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:31:26,312 INFO L85 PathProgramCache]: Analyzing trace with hash 430176664, now seen corresponding path program 1 times
[2024-12-02 13:31:26,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 13:31:26,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939828485]
[2024-12-02 13:31:26,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:31:26,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 13:31:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:31:26,511 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 13:31:26,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 13:31:26,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939828485]
[2024-12-02 13:31:26,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939828485] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 13:31:26,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 13:31:26,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 13:31:26,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013513188]
[2024-12-02 13:31:26,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 13:31:26,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 13:31:26,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 13:31:26,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 13:31:26,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 13:31:26,513 INFO L87 Difference]: Start difference. First operand 977 states and 1177 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:26,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 13:31:26,967 INFO L93 Difference]: Finished difference Result 2091 states and 2587 transitions.
[2024-12-02 13:31:26,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 13:31:26,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 208
[2024-12-02 13:31:26,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 13:31:26,972 INFO L225 Difference]: With dead ends: 2091
[2024-12-02 13:31:26,972 INFO L226 Difference]: Without dead ends: 1255
[2024-12-02 13:31:26,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 13:31:26,974 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 60 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 13:31:26,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 213 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 13:31:26,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states.
[2024-12-02 13:31:26,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255.
[2024-12-02 13:31:27,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.1770334928229664) internal successors, (1476), 1254 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:27,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1476 transitions.
[2024-12-02 13:31:27,007 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1476 transitions. Word has length 208
[2024-12-02 13:31:27,007 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 13:31:27,007 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1476 transitions.
[2024-12-02 13:31:27,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:27,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1476 transitions.
[2024-12-02 13:31:27,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264
[2024-12-02 13:31:27,011 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 13:31:27,012 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:31:27,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-02 13:31:27,012 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 13:31:27,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:31:27,012 INFO L85 PathProgramCache]: Analyzing trace with hash 243218451, now seen corresponding path program 1 times
[2024-12-02 13:31:27,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 13:31:27,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011567695]
[2024-12-02 13:31:27,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:31:27,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 13:31:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:31:27,499 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 13:31:27,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 13:31:27,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011567695]
[2024-12-02 13:31:27,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011567695] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 13:31:27,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 13:31:27,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 13:31:27,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120170805]
[2024-12-02 13:31:27,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 13:31:27,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 13:31:27,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 13:31:27,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 13:31:27,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-12-02 13:31:27,501 INFO L87 Difference]: Start difference. First operand 1255 states and 1476 transitions. Second operand has 7 states, 7 states have (on average 37.57142857142857) internal successors, (263), 6 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:28,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 13:31:28,012 INFO L93 Difference]: Finished difference Result 2424 states and 2861 transitions.
[2024-12-02 13:31:28,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 13:31:28,013 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 37.57142857142857) internal successors, (263), 6 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263
[2024-12-02 13:31:28,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 13:31:28,015 INFO L225 Difference]: With dead ends: 2424
[2024-12-02 13:31:28,016 INFO L226 Difference]: Without dead ends: 1255
[2024-12-02 13:31:28,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-12-02 13:31:28,017 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 142 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 13:31:28,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 22 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 13:31:28,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states.
[2024-12-02 13:31:28,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255.
[2024-12-02 13:31:28,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.171451355661882) internal successors, (1469), 1254 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:28,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1469 transitions.
[2024-12-02 13:31:28,035 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1469 transitions. Word has length 263
[2024-12-02 13:31:28,036 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 13:31:28,036 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1469 transitions.
[2024-12-02 13:31:28,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 37.57142857142857) internal successors, (263), 6 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:28,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1469 transitions.
[2024-12-02 13:31:28,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300
[2024-12-02 13:31:28,039 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 13:31:28,039 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:31:28,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-12-02 13:31:28,040 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 13:31:28,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:31:28,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1978709063, now seen corresponding path program 1 times
[2024-12-02 13:31:28,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 13:31:28,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265603936]
[2024-12-02 13:31:28,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:31:28,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 13:31:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:31:28,332 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 39 proven. 68 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked.
[2024-12-02 13:31:28,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 13:31:28,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265603936]
[2024-12-02 13:31:28,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265603936] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 13:31:28,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591028603]
[2024-12-02 13:31:28,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:31:28,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 13:31:28,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 13:31:28,334 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 13:31:28,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 13:31:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:31:28,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-12-02 13:31:28,458 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 13:31:28,534 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked.
[2024-12-02 13:31:28,534 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 13:31:28,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591028603] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 13:31:28,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 13:31:28,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2024-12-02 13:31:28,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947004890]
[2024-12-02 13:31:28,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 13:31:28,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 13:31:28,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 13:31:28,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 13:31:28,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2024-12-02 13:31:28,536 INFO L87 Difference]: Start difference. First operand 1255 states and 1469 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:28,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 13:31:28,991 INFO L93 Difference]: Finished difference Result 1813 states and 2115 transitions.
[2024-12-02 13:31:28,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 13:31:28,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299
[2024-12-02 13:31:28,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 13:31:28,996 INFO L225 Difference]: With dead ends: 1813
[2024-12-02 13:31:28,996 INFO L226 Difference]: Without dead ends: 1811
[2024-12-02 13:31:28,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2024-12-02 13:31:28,996 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 128 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 13:31:28,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 11 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 13:31:28,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states.
[2024-12-02 13:31:29,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1255.
[2024-12-02 13:31:29,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.171451355661882) internal successors, (1469), 1254 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:29,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1469 transitions.
[2024-12-02 13:31:29,016 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1469 transitions. Word has length 299
[2024-12-02 13:31:29,017 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 13:31:29,017 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1469 transitions.
[2024-12-02 13:31:29,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:29,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1469 transitions.
[2024-12-02 13:31:29,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335
[2024-12-02 13:31:29,020 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 13:31:29,020 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:31:29,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-12-02 13:31:29,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2024-12-02 13:31:29,221 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 13:31:29,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:31:29,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1078107625, now seen corresponding path program 1 times
[2024-12-02 13:31:29,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 13:31:29,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430318137]
[2024-12-02 13:31:29,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:31:29,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 13:31:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:31:29,439 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked.
[2024-12-02 13:31:29,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 13:31:29,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430318137]
[2024-12-02 13:31:29,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430318137] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 13:31:29,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 13:31:29,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 13:31:29,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302205220]
[2024-12-02 13:31:29,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 13:31:29,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 13:31:29,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 13:31:29,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 13:31:29,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 13:31:29,440 INFO L87 Difference]: Start difference. First operand 1255 states and 1469 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:29,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 13:31:29,872 INFO L93 Difference]: Finished difference Result 1396 states and 1618 transitions.
[2024-12-02 13:31:29,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 13:31:29,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 334
[2024-12-02 13:31:29,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 13:31:29,875 INFO L225 Difference]: With dead ends: 1396
[2024-12-02 13:31:29,875 INFO L226 Difference]: Without dead ends: 1394
[2024-12-02 13:31:29,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 13:31:29,876 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 128 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 13:31:29,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 11 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 13:31:29,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states.
[2024-12-02 13:31:29,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1116.
[2024-12-02 13:31:29,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.1829596412556054) internal successors, (1319), 1115 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:29,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1319 transitions.
[2024-12-02 13:31:29,892 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1319 transitions. Word has length 334
[2024-12-02 13:31:29,892 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 13:31:29,892 INFO L471 AbstractCegarLoop]: Abstraction has 1116 states and 1319 transitions.
[2024-12-02 13:31:29,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:29,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1319 transitions.
[2024-12-02 13:31:29,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356
[2024-12-02 13:31:29,905 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 13:31:29,905 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:31:29,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-12-02 13:31:29,906 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 13:31:29,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 13:31:29,906 INFO L85 PathProgramCache]: Analyzing trace with hash 236282857, now seen corresponding path program 1 times
[2024-12-02 13:31:29,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 13:31:29,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511730663]
[2024-12-02 13:31:29,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 13:31:29,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 13:31:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 13:31:30,447 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked.
[2024-12-02 13:31:30,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 13:31:30,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511730663]
[2024-12-02 13:31:30,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511730663] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 13:31:30,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 13:31:30,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 13:31:30,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559908838]
[2024-12-02 13:31:30,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 13:31:30,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 13:31:30,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 13:31:30,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 13:31:30,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 13:31:30,449 INFO L87 Difference]: Start difference. First operand 1116 states and 1319 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:30,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 13:31:30,823 INFO L93 Difference]: Finished difference Result 2089 states and 2492 transitions.
[2024-12-02 13:31:30,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 13:31:30,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 355
[2024-12-02 13:31:30,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 13:31:30,824 INFO L225 Difference]: With dead ends: 2089
[2024-12-02 13:31:30,824 INFO L226 Difference]: Without dead ends: 0
[2024-12-02 13:31:30,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 13:31:30,826 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 109 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 13:31:30,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 19 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 13:31:30,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-12-02 13:31:30,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-12-02 13:31:30,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:30,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-12-02 13:31:30,827 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 355
[2024-12-02 13:31:30,827 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 13:31:30,827 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-12-02 13:31:30,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 13:31:30,828 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-12-02 13:31:30,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-12-02 13:31:30,830 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-12-02 13:31:30,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-12-02 13:31:30,833 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 13:31:30,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-12-02 13:31:30,943 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 13:31:30,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:31:30 BoogieIcfgContainer
[2024-12-02 13:31:30,956 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 13:31:30,956 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 13:31:30,956 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 13:31:30,956 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 13:31:30,957 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:31:20" (3/4) ...
[2024-12-02 13:31:30,959 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-12-02 13:31:30,972 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-12-02 13:31:30,972 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-12-02 13:31:30,973 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-12-02 13:31:30,974 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-12-02 13:31:31,083 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-02 13:31:31,083 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-02 13:31:31,084 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 13:31:31,084 INFO L158 Benchmark]: Toolchain (without parser) took 11648.15ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 116.1MB in the beginning and 234.9MB in the end (delta: -118.9MB). Peak memory consumption was 108.2MB. Max. memory is 16.1GB.
[2024-12-02 13:31:31,085 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 13:31:31,085 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.44ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 88.8MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-12-02 13:31:31,085 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.79ms. Allocated memory is still 142.6MB. Free memory was 88.6MB in the beginning and 81.0MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 13:31:31,085 INFO L158 Benchmark]: Boogie Preprocessor took 70.81ms. Allocated memory is still 142.6MB. Free memory was 81.0MB in the beginning and 71.5MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 13:31:31,086 INFO L158 Benchmark]: RCFGBuilder took 998.74ms. Allocated memory is still 142.6MB. Free memory was 71.5MB in the beginning and 96.3MB in the end (delta: -24.9MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB.
[2024-12-02 13:31:31,086 INFO L158 Benchmark]: TraceAbstraction took 9984.54ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 96.3MB in the beginning and 243.2MB in the end (delta: -146.9MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB.
[2024-12-02 13:31:31,086 INFO L158 Benchmark]: Witness Printer took 127.34ms. Allocated memory is still 369.1MB. Free memory was 243.2MB in the beginning and 234.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 13:31:31,088 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 400.44ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 88.8MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 60.79ms. Allocated memory is still 142.6MB. Free memory was 88.6MB in the beginning and 81.0MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 70.81ms. Allocated memory is still 142.6MB. Free memory was 81.0MB in the beginning and 71.5MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 998.74ms. Allocated memory is still 142.6MB. Free memory was 71.5MB in the beginning and 96.3MB in the end (delta: -24.9MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB.
* TraceAbstraction took 9984.54ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 96.3MB in the beginning and 243.2MB in the end (delta: -146.9MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB.
* Witness Printer took 127.34ms. Allocated memory is still 369.1MB. Free memory was 243.2MB in the beginning and 234.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 182]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.8s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1058 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1058 mSDsluCounter, 595 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 599 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3971 IncrementalHoareTripleChecker+Invalid, 4570 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 599 mSolverCounterUnsat, 545 mSDtfsCounter, 3971 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 588 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1255occurred in iteration=6, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 1112 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 2636 NumberOfCodeBlocks, 2636 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2623 ConstructedInterpolants, 0 QuantifiedInterpolants, 8871 SizeOfPredicates, 0 NumberOfNonLiveVariables, 817 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 1909/2039 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 592]: Loop Invariant
Derived loop invariant: ((((((a19 <= 9) && (a10 != 2)) && (14 == a4)) && (a12 == 0)) || (((a10 <= 1) && (14 == a4)) && (a12 == 0))) || ((((a19 <= 9) && (7 <= a19)) && (14 == a4)) && (a12 == 0)))
RESULT: Ultimate proved your program to be correct!
[2024-12-02 13:31:31,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88bc8aac-0489-4e68-a4d6-022f0bb62518/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE