./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum05.i --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_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/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_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum05.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/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_93d429e7-3cdc-48ac-90ca-aa34c3357732/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 aee69f990ab81a58f1fe8cd275c8a09f43ca6a442f73810f885d3d0c9a85d2b3
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 07:36:48,649 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 07:36:48,713 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-12-02 07:36:48,718 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 07:36:48,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 07:36:48,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 07:36:48,743 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 07:36:48,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 07:36:48,743 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 07:36:48,744 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 07:36:48,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 07:36:48,744 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 07:36:48,744 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 07:36:48,744 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 07:36:48,744 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 07:36:48,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 07:36:48,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 07:36:48,745 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 07:36:48,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 07:36:48,745 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 07:36:48,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 07:36:48,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 07:36:48,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 07:36:48,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 07:36:48,745 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 07:36:48,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 07:36:48,746 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 07:36:48,746 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 07:36:48,746 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 07:36:48,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 07:36:48,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 07:36:48,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 07:36:48,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 07:36:48,746 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 07:36:48,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 07:36:48,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 07:36:48,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 07:36:48,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 07:36:48,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 07:36:48,747 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 07:36:48,747 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 07:36:48,747 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 07:36:48,747 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 07:36:48,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 07:36:48,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 07:36:48,747 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 07:36:48,747 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 07:36:48,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 07:36:48,748 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_93d429e7-3cdc-48ac-90ca-aa34c3357732/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 -> aee69f990ab81a58f1fe8cd275c8a09f43ca6a442f73810f885d3d0c9a85d2b3
[2024-12-02 07:36:49,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 07:36:49,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 07:36:49,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 07:36:49,035 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 07:36:49,035 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 07:36:49,036 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/reducercommutativity/rangesum05.i
[2024-12-02 07:36:51,920 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/data/ffeb6bdec/697589cab2a34e0b8ed4129e293ecaa5/FLAG6ebc7467b
[2024-12-02 07:36:52,117 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 07:36:52,117 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/sv-benchmarks/c/reducercommutativity/rangesum05.i
[2024-12-02 07:36:52,124 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/data/ffeb6bdec/697589cab2a34e0b8ed4129e293ecaa5/FLAG6ebc7467b
[2024-12-02 07:36:52,138 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/data/ffeb6bdec/697589cab2a34e0b8ed4129e293ecaa5
[2024-12-02 07:36:52,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 07:36:52,142 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 07:36:52,143 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 07:36:52,143 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 07:36:52,148 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 07:36:52,149 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:36:52" (1/1) ...
[2024-12-02 07:36:52,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c38a646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:52, skipping insertion in model container
[2024-12-02 07:36:52,151 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:36:52" (1/1) ...
[2024-12-02 07:36:52,168 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 07:36:52,348 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_93d429e7-3cdc-48ac-90ca-aa34c3357732/sv-benchmarks/c/reducercommutativity/rangesum05.i[1457,1470]
[2024-12-02 07:36:52,352 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 07:36:52,362 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 07:36:52,385 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_93d429e7-3cdc-48ac-90ca-aa34c3357732/sv-benchmarks/c/reducercommutativity/rangesum05.i[1457,1470]
[2024-12-02 07:36:52,386 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 07:36:52,403 INFO L204 MainTranslator]: Completed translation
[2024-12-02 07:36:52,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:52 WrapperNode
[2024-12-02 07:36:52,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 07:36:52,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 07:36:52,406 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 07:36:52,406 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 07:36:52,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:52" (1/1) ...
[2024-12-02 07:36:52,421 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:52" (1/1) ...
[2024-12-02 07:36:52,440 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69
[2024-12-02 07:36:52,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 07:36:52,441 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 07:36:52,441 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 07:36:52,442 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 07:36:52,453 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:52" (1/1) ...
[2024-12-02 07:36:52,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:52" (1/1) ...
[2024-12-02 07:36:52,456 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:52" (1/1) ...
[2024-12-02 07:36:52,472 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 5 writes are split as follows [0, 5].
[2024-12-02 07:36:52,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:52" (1/1) ...
[2024-12-02 07:36:52,472 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:52" (1/1) ...
[2024-12-02 07:36:52,480 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:52" (1/1) ...
[2024-12-02 07:36:52,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:52" (1/1) ...
[2024-12-02 07:36:52,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:52" (1/1) ...
[2024-12-02 07:36:52,486 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:52" (1/1) ...
[2024-12-02 07:36:52,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:52" (1/1) ...
[2024-12-02 07:36:52,489 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 07:36:52,490 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 07:36:52,490 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 07:36:52,490 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 07:36:52,491 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:52" (1/1) ...
[2024-12-02 07:36:52,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 07:36:52,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:36:52,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 07:36:52,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 07:36:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 07:36:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 07:36:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-12-02 07:36:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-12-02 07:36:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-02 07:36:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-02 07:36:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 07:36:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 07:36:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-02 07:36:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-02 07:36:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum
[2024-12-02 07:36:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum
[2024-12-02 07:36:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 07:36:52,637 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 07:36:52,639 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 07:36:52,817 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live.
[2024-12-02 07:36:52,817 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 07:36:52,827 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 07:36:52,827 INFO L312 CfgBuilder]: Removed 3 assume(true) statements.
[2024-12-02 07:36:52,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:36:52 BoogieIcfgContainer
[2024-12-02 07:36:52,828 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 07:36:52,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 07:36:52,830 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 07:36:52,836 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 07:36:52,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:36:52" (1/3) ...
[2024-12-02 07:36:52,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771bf5bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:36:52, skipping insertion in model container
[2024-12-02 07:36:52,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:52" (2/3) ...
[2024-12-02 07:36:52,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771bf5bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:36:52, skipping insertion in model container
[2024-12-02 07:36:52,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:36:52" (3/3) ...
[2024-12-02 07:36:52,839 INFO L128 eAbstractionObserver]: Analyzing ICFG rangesum05.i
[2024-12-02 07:36:52,852 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 07:36:52,854 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rangesum05.i that has 2 procedures, 28 locations, 1 initial locations, 3 loop locations, and 1 error locations.
[2024-12-02 07:36:52,906 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 07:36:52,920 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;@82a2d0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 07:36:52,920 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 07:36:52,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 07:36:52,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2024-12-02 07:36:52,932 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 07:36:52,933 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:36:52,933 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:36:52,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:36:52,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1185270251, now seen corresponding path program 1 times
[2024-12-02 07:36:52,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:36:52,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036778809]
[2024-12-02 07:36:52,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:36:52,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:36:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:36:53,251 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-12-02 07:36:53,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:36:53,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036778809]
[2024-12-02 07:36:53,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036778809] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:36:53,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:36:53,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 07:36:53,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895086081]
[2024-12-02 07:36:53,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:36:53,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 07:36:53,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:36:53,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 07:36:53,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 07:36:53,277 INFO L87 Difference]: Start difference. First operand has 28 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-12-02 07:36:53,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:36:53,315 INFO L93 Difference]: Finished difference Result 54 states and 77 transitions.
[2024-12-02 07:36:53,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 07:36:53,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29
[2024-12-02 07:36:53,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:36:53,321 INFO L225 Difference]: With dead ends: 54
[2024-12-02 07:36:53,322 INFO L226 Difference]: Without dead ends: 26
[2024-12-02 07:36:53,324 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 07:36:53,328 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 1 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:36:53,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 61 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:36:53,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2024-12-02 07:36:53,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25.
[2024-12-02 07:36:53,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 07:36:53,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions.
[2024-12-02 07:36:53,360 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 29
[2024-12-02 07:36:53,360 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:36:53,360 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions.
[2024-12-02 07:36:53,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-12-02 07:36:53,361 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions.
[2024-12-02 07:36:53,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-12-02 07:36:53,362 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 07:36:53,363 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:36:53,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 07:36:53,363 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:36:53,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:36:53,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1744330841, now seen corresponding path program 1 times
[2024-12-02 07:36:53,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:36:53,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259055148]
[2024-12-02 07:36:53,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:36:53,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:36:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:36:53,529 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-12-02 07:36:53,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:36:53,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259055148]
[2024-12-02 07:36:53,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259055148] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:36:53,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673333947]
[2024-12-02 07:36:53,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:36:53,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:36:53,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:36:53,532 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:36:53,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 07:36:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:36:53,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-12-02 07:36:53,653 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:36:53,681 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-02 07:36:53,681 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:36:53,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673333947] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:36:53,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:36:53,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5
[2024-12-02 07:36:53,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963478076]
[2024-12-02 07:36:53,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:36:53,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 07:36:53,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:36:53,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 07:36:53,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:36:53,683 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 07:36:53,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:36:53,707 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions.
[2024-12-02 07:36:53,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 07:36:53,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31
[2024-12-02 07:36:53,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:36:53,709 INFO L225 Difference]: With dead ends: 46
[2024-12-02 07:36:53,709 INFO L226 Difference]: Without dead ends: 28
[2024-12-02 07:36:53,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:36:53,710 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 2 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:36:53,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 51 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:36:53,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2024-12-02 07:36:53,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27.
[2024-12-02 07:36:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 07:36:53,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions.
[2024-12-02 07:36:53,716 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 31
[2024-12-02 07:36:53,716 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:36:53,716 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions.
[2024-12-02 07:36:53,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 07:36:53,716 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions.
[2024-12-02 07:36:53,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2024-12-02 07:36:53,717 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 07:36:53,717 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:36:53,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 07:36:53,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2024-12-02 07:36:53,918 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:36:53,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:36:53,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1714899532, now seen corresponding path program 1 times
[2024-12-02 07:36:53,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:36:53,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128242495]
[2024-12-02 07:36:53,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:36:53,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:36:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:36:54,035 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked.
[2024-12-02 07:36:54,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:36:54,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128242495]
[2024-12-02 07:36:54,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128242495] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:36:54,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584317057]
[2024-12-02 07:36:54,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:36:54,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:36:54,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:36:54,038 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:36:54,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 07:36:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:36:54,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-12-02 07:36:54,137 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:36:54,152 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2024-12-02 07:36:54,153 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:36:54,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584317057] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:36:54,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:36:54,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5
[2024-12-02 07:36:54,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911903354]
[2024-12-02 07:36:54,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:36:54,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 07:36:54,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:36:54,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 07:36:54,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:36:54,155 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 07:36:54,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:36:54,173 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions.
[2024-12-02 07:36:54,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 07:36:54,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40
[2024-12-02 07:36:54,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:36:54,175 INFO L225 Difference]: With dead ends: 44
[2024-12-02 07:36:54,175 INFO L226 Difference]: Without dead ends: 29
[2024-12-02 07:36:54,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:36:54,176 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:36:54,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 52 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:36:54,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2024-12-02 07:36:54,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28.
[2024-12-02 07:36:54,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 07:36:54,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions.
[2024-12-02 07:36:54,182 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 40
[2024-12-02 07:36:54,183 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:36:54,183 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions.
[2024-12-02 07:36:54,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 07:36:54,184 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions.
[2024-12-02 07:36:54,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2024-12-02 07:36:54,185 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 07:36:54,185 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:36:54,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 07:36:54,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:36:54,386 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:36:54,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:36:54,386 INFO L85 PathProgramCache]: Analyzing trace with hash 637011920, now seen corresponding path program 1 times
[2024-12-02 07:36:54,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:36:54,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734557273]
[2024-12-02 07:36:54,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:36:54,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:36:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:36:54,505 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2024-12-02 07:36:54,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:36:54,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734557273]
[2024-12-02 07:36:54,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734557273] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:36:54,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394885972]
[2024-12-02 07:36:54,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:36:54,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:36:54,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:36:54,508 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:36:54,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 07:36:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:36:54,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 07:36:54,609 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:36:54,631 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2024-12-02 07:36:54,631 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:36:54,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394885972] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:36:54,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:36:54,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5
[2024-12-02 07:36:54,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074945042]
[2024-12-02 07:36:54,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:36:54,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 07:36:54,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:36:54,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 07:36:54,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:36:54,634 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 07:36:54,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:36:54,648 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions.
[2024-12-02 07:36:54,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 07:36:54,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42
[2024-12-02 07:36:54,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:36:54,650 INFO L225 Difference]: With dead ends: 53
[2024-12-02 07:36:54,650 INFO L226 Difference]: Without dead ends: 32
[2024-12-02 07:36:54,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:36:54,651 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:36:54,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:36:54,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2024-12-02 07:36:54,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2024-12-02 07:36:54,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 07:36:54,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions.
[2024-12-02 07:36:54,657 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 42
[2024-12-02 07:36:54,657 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:36:54,657 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions.
[2024-12-02 07:36:54,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-12-02 07:36:54,658 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions.
[2024-12-02 07:36:54,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2024-12-02 07:36:54,659 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 07:36:54,659 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:36:54,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 07:36:54,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:36:54,860 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:36:54,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:36:54,860 INFO L85 PathProgramCache]: Analyzing trace with hash 268132973, now seen corresponding path program 1 times
[2024-12-02 07:36:54,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:36:54,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838344892]
[2024-12-02 07:36:54,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:36:54,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:36:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:36:54,927 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2024-12-02 07:36:54,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:36:54,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838344892]
[2024-12-02 07:36:54,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838344892] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:36:54,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380347961]
[2024-12-02 07:36:54,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:36:54,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:36:54,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:36:54,930 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:36:54,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 07:36:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:36:55,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 07:36:55,021 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:36:55,051 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2024-12-02 07:36:55,051 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 07:36:55,105 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2024-12-02 07:36:55,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380347961] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 07:36:55,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 07:36:55,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2024-12-02 07:36:55,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146234414]
[2024-12-02 07:36:55,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 07:36:55,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 07:36:55,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:36:55,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 07:36:55,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-12-02 07:36:55,107 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6)
[2024-12-02 07:36:55,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:36:55,147 INFO L93 Difference]: Finished difference Result 65 states and 83 transitions.
[2024-12-02 07:36:55,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 07:36:55,147 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 42
[2024-12-02 07:36:55,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:36:55,148 INFO L225 Difference]: With dead ends: 65
[2024-12-02 07:36:55,148 INFO L226 Difference]: Without dead ends: 38
[2024-12-02 07:36:55,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-12-02 07:36:55,150 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:36:55,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 103 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:36:55,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2024-12-02 07:36:55,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38.
[2024-12-02 07:36:55,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 07:36:55,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions.
[2024-12-02 07:36:55,156 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 42
[2024-12-02 07:36:55,157 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:36:55,157 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions.
[2024-12-02 07:36:55,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6)
[2024-12-02 07:36:55,157 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions.
[2024-12-02 07:36:55,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2024-12-02 07:36:55,158 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 07:36:55,158 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:36:55,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-12-02 07:36:55,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:36:55,359 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:36:55,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:36:55,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1336068039, now seen corresponding path program 2 times
[2024-12-02 07:36:55,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:36:55,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633869147]
[2024-12-02 07:36:55,360 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 07:36:55,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:36:55,384 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 07:36:55,384 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 07:36:55,433 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked.
[2024-12-02 07:36:55,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:36:55,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633869147]
[2024-12-02 07:36:55,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633869147] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:36:55,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376055747]
[2024-12-02 07:36:55,434 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 07:36:55,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:36:55,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:36:55,436 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:36:55,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-12-02 07:36:55,531 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 07:36:55,531 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 07:36:55,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-12-02 07:36:55,534 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:36:55,597 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2024-12-02 07:36:55,597 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 07:36:55,677 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2024-12-02 07:36:55,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376055747] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 07:36:55,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 07:36:55,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 9
[2024-12-02 07:36:55,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512327561]
[2024-12-02 07:36:55,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 07:36:55,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 07:36:55,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:36:55,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 07:36:55,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72
[2024-12-02 07:36:55,680 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7)
[2024-12-02 07:36:55,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:36:55,735 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions.
[2024-12-02 07:36:55,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 07:36:55,737 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 48
[2024-12-02 07:36:55,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:36:55,738 INFO L225 Difference]: With dead ends: 71
[2024-12-02 07:36:55,738 INFO L226 Difference]: Without dead ends: 44
[2024-12-02 07:36:55,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 86 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72
[2024-12-02 07:36:55,739 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 3 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:36:55,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 91 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:36:55,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2024-12-02 07:36:55,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43.
[2024-12-02 07:36:55,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 38 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 07:36:55,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions.
[2024-12-02 07:36:55,746 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 48
[2024-12-02 07:36:55,747 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:36:55,747 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions.
[2024-12-02 07:36:55,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7)
[2024-12-02 07:36:55,747 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions.
[2024-12-02 07:36:55,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2024-12-02 07:36:55,748 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 07:36:55,748 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:36:55,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-12-02 07:36:55,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:36:55,949 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:36:55,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:36:55,949 INFO L85 PathProgramCache]: Analyzing trace with hash -413575196, now seen corresponding path program 3 times
[2024-12-02 07:36:55,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:36:55,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288124146]
[2024-12-02 07:36:55,950 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 07:36:55,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:36:55,970 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-12-02 07:36:55,970 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 07:36:56,005 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked.
[2024-12-02 07:36:56,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:36:56,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288124146]
[2024-12-02 07:36:56,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288124146] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:36:56,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:36:56,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 07:36:56,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374517464]
[2024-12-02 07:36:56,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:36:56,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 07:36:56,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:36:56,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 07:36:56,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:36:56,007 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2024-12-02 07:36:56,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:36:56,033 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions.
[2024-12-02 07:36:56,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 07:36:56,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 59
[2024-12-02 07:36:56,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:36:56,035 INFO L225 Difference]: With dead ends: 74
[2024-12-02 07:36:56,035 INFO L226 Difference]: Without dead ends: 46
[2024-12-02 07:36:56,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:36:56,036 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:36:56,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 74 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:36:56,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2024-12-02 07:36:56,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41.
[2024-12-02 07:36:56,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 36 states have internal predecessors, (41), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 07:36:56,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions.
[2024-12-02 07:36:56,043 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 59
[2024-12-02 07:36:56,043 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:36:56,044 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions.
[2024-12-02 07:36:56,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2024-12-02 07:36:56,044 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions.
[2024-12-02 07:36:56,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-12-02 07:36:56,045 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 07:36:56,045 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 6, 5, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:36:56,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-12-02 07:36:56,046 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:36:56,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:36:56,046 INFO L85 PathProgramCache]: Analyzing trace with hash -60886918, now seen corresponding path program 1 times
[2024-12-02 07:36:56,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:36:56,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906168392]
[2024-12-02 07:36:56,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:36:56,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:36:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:36:56,189 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked.
[2024-12-02 07:36:56,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:36:56,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906168392]
[2024-12-02 07:36:56,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906168392] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:36:56,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952695285]
[2024-12-02 07:36:56,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:36:56,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:36:56,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:36:56,192 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:36:56,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-12-02 07:36:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:36:56,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 07:36:56,316 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:36:56,358 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked.
[2024-12-02 07:36:56,358 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 07:36:56,417 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 5 proven. 81 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked.
[2024-12-02 07:36:56,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952695285] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 07:36:56,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 07:36:56,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 7
[2024-12-02 07:36:56,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352494833]
[2024-12-02 07:36:56,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 07:36:56,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 07:36:56,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:36:56,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 07:36:56,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-12-02 07:36:56,420 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-12-02 07:36:56,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:36:56,474 INFO L93 Difference]: Finished difference Result 73 states and 88 transitions.
[2024-12-02 07:36:56,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 07:36:56,477 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68
[2024-12-02 07:36:56,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:36:56,478 INFO L225 Difference]: With dead ends: 73
[2024-12-02 07:36:56,478 INFO L226 Difference]: Without dead ends: 47
[2024-12-02 07:36:56,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 131 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-12-02 07:36:56,479 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 2 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:36:56,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 90 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:36:56,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2024-12-02 07:36:56,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46.
[2024-12-02 07:36:56,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 41 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 07:36:56,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions.
[2024-12-02 07:36:56,487 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 68
[2024-12-02 07:36:56,488 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:36:56,488 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions.
[2024-12-02 07:36:56,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-12-02 07:36:56,488 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions.
[2024-12-02 07:36:56,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-12-02 07:36:56,489 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 07:36:56,489 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 9, 5, 5, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:36:56,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-12-02 07:36:56,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2024-12-02 07:36:56,690 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:36:56,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:36:56,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1794039361, now seen corresponding path program 2 times
[2024-12-02 07:36:56,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:36:56,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119127529]
[2024-12-02 07:36:56,691 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 07:36:56,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:36:56,733 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 07:36:56,733 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 07:36:56,846 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked.
[2024-12-02 07:36:56,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:36:56,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119127529]
[2024-12-02 07:36:56,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119127529] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:36:56,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256677265]
[2024-12-02 07:36:56,847 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 07:36:56,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:36:56,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:36:56,849 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:36:56,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-12-02 07:36:56,974 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 07:36:56,975 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 07:36:56,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-12-02 07:36:56,979 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:36:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 116 proven. 22 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked.
[2024-12-02 07:36:57,057 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 07:36:57,142 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked.
[2024-12-02 07:36:57,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256677265] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 07:36:57,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 07:36:57,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 10
[2024-12-02 07:36:57,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170647293]
[2024-12-02 07:36:57,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 07:36:57,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-02 07:36:57,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:36:57,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-02 07:36:57,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2024-12-02 07:36:57,145 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-12-02 07:36:57,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:36:57,208 INFO L93 Difference]: Finished difference Result 83 states and 99 transitions.
[2024-12-02 07:36:57,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-12-02 07:36:57,209 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 79
[2024-12-02 07:36:57,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:36:57,209 INFO L225 Difference]: With dead ends: 83
[2024-12-02 07:36:57,210 INFO L226 Difference]: Without dead ends: 52
[2024-12-02 07:36:57,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 148 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2024-12-02 07:36:57,211 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 4 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 07:36:57,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 108 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 07:36:57,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2024-12-02 07:36:57,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51.
[2024-12-02 07:36:57,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 46 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 07:36:57,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions.
[2024-12-02 07:36:57,225 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 79
[2024-12-02 07:36:57,225 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:36:57,225 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions.
[2024-12-02 07:36:57,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-12-02 07:36:57,225 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions.
[2024-12-02 07:36:57,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91
[2024-12-02 07:36:57,226 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 07:36:57,226 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 9, 6, 5, 5, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:36:57,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-12-02 07:36:57,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8
[2024-12-02 07:36:57,427 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:36:57,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:36:57,428 INFO L85 PathProgramCache]: Analyzing trace with hash 568809448, now seen corresponding path program 3 times
[2024-12-02 07:36:57,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:36:57,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844908902]
[2024-12-02 07:36:57,428 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 07:36:57,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:36:57,502 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s)
[2024-12-02 07:36:57,502 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 07:36:57,604 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked.
[2024-12-02 07:36:57,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:36:57,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844908902]
[2024-12-02 07:36:57,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844908902] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:36:57,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169090242]
[2024-12-02 07:36:57,605 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 07:36:57,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:36:57,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:36:57,607 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:36:57,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-12-02 07:36:57,745 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s)
[2024-12-02 07:36:57,745 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 07:36:57,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-02 07:36:57,749 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:36:57,777 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 180 proven. 9 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-12-02 07:36:57,777 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 07:36:57,829 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked.
[2024-12-02 07:36:57,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169090242] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 07:36:57,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 07:36:57,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7
[2024-12-02 07:36:57,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133113554]
[2024-12-02 07:36:57,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 07:36:57,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 07:36:57,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:36:57,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 07:36:57,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-12-02 07:36:57,831 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 07:36:57,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:36:57,860 INFO L93 Difference]: Finished difference Result 79 states and 90 transitions.
[2024-12-02 07:36:57,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 07:36:57,860 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 90
[2024-12-02 07:36:57,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:36:57,861 INFO L225 Difference]: With dead ends: 79
[2024-12-02 07:36:57,861 INFO L226 Difference]: Without dead ends: 53
[2024-12-02 07:36:57,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 175 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-12-02 07:36:57,862 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:36:57,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 100 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:36:57,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2024-12-02 07:36:57,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2024-12-02 07:36:57,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.125) internal successors, (54), 48 states have internal predecessors, (54), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 07:36:57,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions.
[2024-12-02 07:36:57,869 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 90
[2024-12-02 07:36:57,870 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:36:57,870 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions.
[2024-12-02 07:36:57,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-12-02 07:36:57,870 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions.
[2024-12-02 07:36:57,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93
[2024-12-02 07:36:57,871 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 07:36:57,871 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 9, 6, 5, 5, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:36:57,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-12-02 07:36:58,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-12-02 07:36:58,072 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:36:58,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:36:58,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1559885932, now seen corresponding path program 4 times
[2024-12-02 07:36:58,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:36:58,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317475769]
[2024-12-02 07:36:58,073 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-12-02 07:36:58,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:36:58,215 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-12-02 07:36:58,215 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown
[2024-12-02 07:36:58,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1499530443]
[2024-12-02 07:36:58,220 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-12-02 07:36:58,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:36:58,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:36:58,224 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:36:58,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-12-02 07:36:58,594 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-12-02 07:36:58,595 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat
[2024-12-02 07:36:58,595 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 07:36:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 07:36:58,809 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 07:36:58,810 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 07:36:58,811 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-12-02 07:36:58,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-12-02 07:36:59,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:36:59,016 INFO L422 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1]
[2024-12-02 07:36:59,062 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 07:36:59,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:36:59 BoogieIcfgContainer
[2024-12-02 07:36:59,066 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 07:36:59,066 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 07:36:59,066 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 07:36:59,066 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 07:36:59,067 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:36:52" (3/4) ...
[2024-12-02 07:36:59,068 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample
[2024-12-02 07:36:59,142 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 57.
[2024-12-02 07:36:59,227 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-02 07:36:59,228 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-02 07:36:59,228 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 07:36:59,229 INFO L158 Benchmark]: Toolchain (without parser) took 7086.99ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 92.4MB in the beginning and 71.1MB in the end (delta: 21.3MB). Peak memory consumption was 106.2MB. Max. memory is 16.1GB.
[2024-12-02 07:36:59,229 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 07:36:59,229 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.70ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 81.2MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 07:36:59,229 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.52ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.9MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 07:36:59,230 INFO L158 Benchmark]: Boogie Preprocessor took 47.71ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 07:36:59,230 INFO L158 Benchmark]: RCFGBuilder took 338.17ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 66.2MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 07:36:59,230 INFO L158 Benchmark]: TraceAbstraction took 6235.84ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 65.7MB in the beginning and 81.3MB in the end (delta: -15.6MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB.
[2024-12-02 07:36:59,231 INFO L158 Benchmark]: Witness Printer took 161.83ms. Allocated memory is still 201.3MB. Free memory was 81.3MB in the beginning and 71.1MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 07:36:59,232 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.22ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 261.70ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 81.2MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 35.52ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.9MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 47.71ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 338.17ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 66.2MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 6235.84ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 65.7MB in the beginning and 81.3MB in the end (delta: -15.6MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB.
* Witness Printer took 161.83ms. Allocated memory is still 201.3MB. Free memory was 81.3MB in the beginning and 71.1MB in the end (delta: 10.2MB). 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
- CounterExampleResult [Line: 61]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L42] int x[5];
[L43] CALL init_nondet(x)
[L16] int i;
[L17] i = 0
VAL [i=0, x={3:0}]
[L17] COND TRUE i < 5
VAL [i=0, x={3:0}]
[L18] x[i] = __VERIFIER_nondet_int()
[L17] i++
VAL [i=1, x={3:0}]
[L17] COND TRUE i < 5
VAL [i=1, x={3:0}]
[L18] x[i] = __VERIFIER_nondet_int()
[L17] i++
VAL [i=2, x={3:0}]
[L17] COND TRUE i < 5
VAL [i=2, x={3:0}]
[L18] x[i] = __VERIFIER_nondet_int()
[L17] i++
VAL [i=3, x={3:0}]
[L17] COND TRUE i < 5
VAL [i=3, x={3:0}]
[L18] x[i] = __VERIFIER_nondet_int()
[L17] i++
VAL [i=4, x={3:0}]
[L17] COND TRUE i < 5
VAL [i=4, x={3:0}]
[L18] x[i] = __VERIFIER_nondet_int()
[L17] i++
VAL [i=5, x={3:0}]
[L17] COND FALSE !(i < 5)
VAL [x={3:0}]
[L43] RET init_nondet(x)
[L44] int temp;
[L45] int ret;
[L46] int ret2;
[L47] int ret5;
VAL [x={3:0}]
[L49] CALL, EXPR rangesum(x)
VAL [\old(x)={3:0}]
[L24] int i;
[L25] long long ret;
[L26] ret = 0
[L27] int cnt = 0;
[L28] i = 0
VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}]
[L28] COND TRUE i < 5
VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}]
[L29] COND FALSE !(i > 5/2)
VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}]
[L28] i++
VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}]
[L28] COND TRUE i < 5
VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}]
[L29] COND FALSE !(i > 5/2)
VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}]
[L28] i++
VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}]
[L28] COND TRUE i < 5
VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}]
[L29] COND FALSE !(i > 5/2)
VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}]
[L28] i++
VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}]
[L28] COND TRUE i < 5
VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}]
[L29] COND TRUE i > 5/2
[L30] EXPR x[i]
[L30] ret = ret + x[i]
[L31] cnt = cnt + 1
VAL [\old(x)={3:0}, cnt=1, i=3, ret=-3, x={3:0}]
[L28] i++
VAL [\old(x)={3:0}, cnt=1, i=4, ret=-3, x={3:0}]
[L28] COND TRUE i < 5
VAL [\old(x)={3:0}, cnt=1, i=4, ret=-3, x={3:0}]
[L29] COND TRUE i > 5/2
[L30] EXPR x[i]
[L30] ret = ret + x[i]
[L31] cnt = cnt + 1
VAL [\old(x)={3:0}, cnt=2, i=4, ret=-1, x={3:0}]
[L28] i++
VAL [\old(x)={3:0}, cnt=2, i=5, ret=-1, x={3:0}]
[L28] COND FALSE !(i < 5)
VAL [\old(x)={3:0}, cnt=2, ret=-1, x={3:0}]
[L34] COND TRUE cnt !=0
[L35] return ret / cnt;
VAL [\old(x)={3:0}, \result=0, x={3:0}]
[L49] RET, EXPR rangesum(x)
VAL [x={3:0}]
[L49] ret = rangesum(x)
[L51] EXPR x[0]
[L51] temp=x[0]
[L51] EXPR x[1]
[L51] x[0] = x[1]
[L51] x[1] = temp
[L52] CALL, EXPR rangesum(x)
VAL [\old(x)={3:0}]
[L24] int i;
[L25] long long ret;
[L26] ret = 0
[L27] int cnt = 0;
[L28] i = 0
VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}]
[L28] COND TRUE i < 5
VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}]
[L29] COND FALSE !(i > 5/2)
VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}]
[L28] i++
VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}]
[L28] COND TRUE i < 5
VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}]
[L29] COND FALSE !(i > 5/2)
VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}]
[L28] i++
VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}]
[L28] COND TRUE i < 5
VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}]
[L29] COND FALSE !(i > 5/2)
VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}]
[L28] i++
VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}]
[L28] COND TRUE i < 5
VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}]
[L29] COND TRUE i > 5/2
[L30] EXPR x[i]
[L30] ret = ret + x[i]
[L31] cnt = cnt + 1
VAL [\old(x)={3:0}, cnt=1, i=3, ret=-3, x={3:0}]
[L28] i++
VAL [\old(x)={3:0}, cnt=1, i=4, ret=-3, x={3:0}]
[L28] COND TRUE i < 5
VAL [\old(x)={3:0}, cnt=1, i=4, ret=-3, x={3:0}]
[L29] COND TRUE i > 5/2
[L30] EXPR x[i]
[L30] ret = ret + x[i]
[L31] cnt = cnt + 1
VAL [\old(x)={3:0}, cnt=2, i=4, ret=-1, x={3:0}]
[L28] i++
VAL [\old(x)={3:0}, cnt=2, i=5, ret=-1, x={3:0}]
[L28] COND FALSE !(i < 5)
VAL [\old(x)={3:0}, cnt=2, ret=-1, x={3:0}]
[L34] COND TRUE cnt !=0
[L35] return ret / cnt;
VAL [\old(x)={3:0}, \result=0, x={3:0}]
[L52] RET, EXPR rangesum(x)
VAL [ret=0, x={3:0}]
[L52] ret2 = rangesum(x)
[L53] EXPR x[0]
[L53] temp=x[0]
[L54] int i =0 ;
VAL [i=0, ret2=0, ret=0, temp=1, x={3:0}]
[L54] COND TRUE i<5 -1
VAL [i=0, ret2=0, ret=0, temp=1, x={3:0}]
[L55] EXPR x[i+1]
[L55] x[i] = x[i+1]
[L54] i++
VAL [i=1, ret2=0, ret=0, temp=1, x={3:0}]
[L54] COND TRUE i<5 -1
VAL [i=1, ret2=0, ret=0, temp=1, x={3:0}]
[L55] EXPR x[i+1]
[L55] x[i] = x[i+1]
[L54] i++
VAL [i=2, ret2=0, ret=0, temp=1, x={3:0}]
[L54] COND TRUE i<5 -1
VAL [i=2, ret2=0, ret=0, temp=1, x={3:0}]
[L55] EXPR x[i+1]
[L55] x[i] = x[i+1]
[L54] i++
VAL [i=3, ret2=0, ret=0, temp=1, x={3:0}]
[L54] COND TRUE i<5 -1
VAL [i=3, ret2=0, ret=0, temp=1, x={3:0}]
[L55] EXPR x[i+1]
[L55] x[i] = x[i+1]
[L54] i++
VAL [i=4, ret2=0, ret=0, temp=1, x={3:0}]
[L54] COND FALSE !(i<5 -1)
VAL [ret2=0, ret=0, temp=1, x={3:0}]
[L57] x[5 -1] = temp
[L58] CALL, EXPR rangesum(x)
VAL [\old(x)={3:0}]
[L24] int i;
[L25] long long ret;
[L26] ret = 0
[L27] int cnt = 0;
[L28] i = 0
VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}]
[L28] COND TRUE i < 5
VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}]
[L29] COND FALSE !(i > 5/2)
VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}]
[L28] i++
VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}]
[L28] COND TRUE i < 5
VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}]
[L29] COND FALSE !(i > 5/2)
VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}]
[L28] i++
VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}]
[L28] COND TRUE i < 5
VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}]
[L29] COND FALSE !(i > 5/2)
VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}]
[L28] i++
VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}]
[L28] COND TRUE i < 5
VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}]
[L29] COND TRUE i > 5/2
[L30] EXPR x[i]
[L30] ret = ret + x[i]
[L31] cnt = cnt + 1
VAL [\old(x)={3:0}, cnt=1, i=3, ret=2, x={3:0}]
[L28] i++
VAL [\old(x)={3:0}, cnt=1, i=4, ret=2, x={3:0}]
[L28] COND TRUE i < 5
VAL [\old(x)={3:0}, cnt=1, i=4, ret=2, x={3:0}]
[L29] COND TRUE i > 5/2
[L30] EXPR x[i]
[L30] ret = ret + x[i]
[L31] cnt = cnt + 1
VAL [\old(x)={3:0}, cnt=2, i=4, ret=3, x={3:0}]
[L28] i++
VAL [\old(x)={3:0}, cnt=2, i=5, ret=3, x={3:0}]
[L28] COND FALSE !(i < 5)
VAL [\old(x)={3:0}, cnt=2, ret=3, x={3:0}]
[L34] COND TRUE cnt !=0
[L35] return ret / cnt;
VAL [\old(x)={3:0}, \result=1, x={3:0}]
[L58] RET, EXPR rangesum(x)
VAL [ret2=0, ret=0, x={3:0}]
[L58] ret5 = rangesum(x)
[L60] COND TRUE ret != ret2 || ret !=ret5
VAL [x={3:0}]
[L61] reach_error()
VAL [x={3:0}]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 11, TraceHistogramMax: 15, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 784 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 513 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 181 IncrementalHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 271 mSDtfsCounter, 181 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 796 GetRequests, 738 SyntacticMatches, 16 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=10, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 11 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1152 NumberOfCodeBlocks, 1054 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 1272 ConstructedInterpolants, 0 QuantifiedInterpolants, 1514 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1560 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 23 InterpolantComputations, 5 PerfectInterpolantSequences, 2792/3133 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
RESULT: Ultimate proved your program to be incorrect!
[2024-12-02 07:36:59,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93d429e7-3cdc-48ac-90ca-aa34c3357732/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE