./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/basename-1.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/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_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/basename-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 320ae3d03464475ecb206e8b20150b073c01ab68d3174adb5b7045f5bdb20751
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 11:39:24,680 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 11:39:24,748 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf
[2024-12-02 11:39:24,754 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 11:39:24,754 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 11:39:24,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 11:39:24,780 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 11:39:24,780 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 11:39:24,781 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 11:39:24,781 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 11:39:24,782 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 11:39:24,782 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 11:39:24,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 11:39:24,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 11:39:24,782 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 11:39:24,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 11:39:24,783 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 11:39:24,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 11:39:24,783 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-12-02 11:39:24,783 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-12-02 11:39:24,783 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-12-02 11:39:24,783 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 11:39:24,783 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 11:39:24,783 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 11:39:24,783 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 11:39:24,783 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 11:39:24,784 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 11:39:24,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 11:39:24,784 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 11:39:24,784 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 11:39:24,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 11:39:24,784 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 11:39:24,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 11:39:24,784 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 11:39:24,784 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 11:39:24,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 11:39:24,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 11:39:24,785 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 11:39:24,785 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 11:39:24,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 11:39:24,785 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 11:39:24,785 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 11:39:24,785 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 11:39:24,785 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 11:39:24,785 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_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/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 valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 320ae3d03464475ecb206e8b20150b073c01ab68d3174adb5b7045f5bdb20751
[2024-12-02 11:39:25,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 11:39:25,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 11:39:25,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 11:39:25,063 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 11:39:25,063 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 11:39:25,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/busybox-1.22.0/basename-1.i
[2024-12-02 11:39:27,784 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/data/fec555a8c/055df149e2754f41aaf97543ebc5836c/FLAGbaa7ef803
[2024-12-02 11:39:28,083 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 11:39:28,084 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/sv-benchmarks/c/busybox-1.22.0/basename-1.i
[2024-12-02 11:39:28,103 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/data/fec555a8c/055df149e2754f41aaf97543ebc5836c/FLAGbaa7ef803
[2024-12-02 11:39:28,119 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/data/fec555a8c/055df149e2754f41aaf97543ebc5836c
[2024-12-02 11:39:28,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 11:39:28,123 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 11:39:28,125 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 11:39:28,125 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 11:39:28,130 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 11:39:28,131 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:39:28" (1/1) ...
[2024-12-02 11:39:28,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e249cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:28, skipping insertion in model container
[2024-12-02 11:39:28,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:39:28" (1/1) ...
[2024-12-02 11:39:28,172 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 11:39:28,710 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:39:28,725 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:39:28,729 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:39:28,733 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:39:28,737 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:39:28,746 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:39:28,746 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:39:28,747 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:39:28,749 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:39:28,753 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:39:28,765 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:39:28,777 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 11:39:28,801 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 11:39:28,892 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 11:39:28,984 INFO L204 MainTranslator]: Completed translation
[2024-12-02 11:39:28,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:28 WrapperNode
[2024-12-02 11:39:28,985 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 11:39:28,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 11:39:28,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 11:39:28,986 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 11:39:28,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:28" (1/1) ...
[2024-12-02 11:39:29,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:28" (1/1) ...
[2024-12-02 11:39:29,053 INFO L138 Inliner]: procedures = 346, calls = 461, calls flagged for inlining = 12, calls inlined = 11, statements flattened = 736
[2024-12-02 11:39:29,054 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 11:39:29,054 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 11:39:29,054 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 11:39:29,054 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 11:39:29,064 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:28" (1/1) ...
[2024-12-02 11:39:29,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:28" (1/1) ...
[2024-12-02 11:39:29,073 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:28" (1/1) ...
[2024-12-02 11:39:29,107 INFO L175 MemorySlicer]: Split 410 memory accesses to 14 slices as follows [2, 3, 3, 3, 4, 4, 4, 3, 355, 2, 12, 2, 1, 12]. 87 percent of accesses are in the largest equivalence class. The 378 initializations are split as follows [2, 3, 3, 3, 3, 3, 3, 3, 355, 0, 0, 0, 0, 0]. The 10 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 5, 2, 0, 2].
[2024-12-02 11:39:29,107 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:28" (1/1) ...
[2024-12-02 11:39:29,108 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:28" (1/1) ...
[2024-12-02 11:39:29,144 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:28" (1/1) ...
[2024-12-02 11:39:29,146 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:28" (1/1) ...
[2024-12-02 11:39:29,151 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:28" (1/1) ...
[2024-12-02 11:39:29,159 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:28" (1/1) ...
[2024-12-02 11:39:29,163 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:28" (1/1) ...
[2024-12-02 11:39:29,175 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 11:39:29,176 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 11:39:29,176 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 11:39:29,176 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 11:39:29,177 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:28" (1/1) ...
[2024-12-02 11:39:29,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 11:39:29,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:39:29,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 11:39:29,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 11:39:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-12-02 11:39:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-12-02 11:39:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-12-02 11:39:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-12-02 11:39:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-12-02 11:39:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3
[2024-12-02 11:39:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4
[2024-12-02 11:39:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5
[2024-12-02 11:39:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6
[2024-12-02 11:39:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7
[2024-12-02 11:39:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8
[2024-12-02 11:39:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9
[2024-12-02 11:39:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10
[2024-12-02 11:39:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11
[2024-12-02 11:39:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12
[2024-12-02 11:39:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13
[2024-12-02 11:39:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 11:39:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-02 11:39:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-02 11:39:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-12-02 11:39:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-12-02 11:39:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4
[2024-12-02 11:39:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5
[2024-12-02 11:39:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6
[2024-12-02 11:39:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7
[2024-12-02 11:39:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8
[2024-12-02 11:39:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9
[2024-12-02 11:39:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10
[2024-12-02 11:39:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11
[2024-12-02 11:39:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12
[2024-12-02 11:39:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13
[2024-12-02 11:39:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-02 11:39:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-02 11:39:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-12-02 11:39:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-12-02 11:39:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4
[2024-12-02 11:39:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5
[2024-12-02 11:39:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6
[2024-12-02 11:39:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7
[2024-12-02 11:39:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8
[2024-12-02 11:39:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9
[2024-12-02 11:39:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10
[2024-12-02 11:39:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11
[2024-12-02 11:39:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12
[2024-12-02 11:39:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13
[2024-12-02 11:39:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-12-02 11:39:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 11:39:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-12-02 11:39:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-12-02 11:39:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-12-02 11:39:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3
[2024-12-02 11:39:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4
[2024-12-02 11:39:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5
[2024-12-02 11:39:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6
[2024-12-02 11:39:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7
[2024-12-02 11:39:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8
[2024-12-02 11:39:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9
[2024-12-02 11:39:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10
[2024-12-02 11:39:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11
[2024-12-02 11:39:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12
[2024-12-02 11:39:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13
[2024-12-02 11:39:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 11:39:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-12-02 11:39:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-12-02 11:39:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-12-02 11:39:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4
[2024-12-02 11:39:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5
[2024-12-02 11:39:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6
[2024-12-02 11:39:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7
[2024-12-02 11:39:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8
[2024-12-02 11:39:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9
[2024-12-02 11:39:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10
[2024-12-02 11:39:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11
[2024-12-02 11:39:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12
[2024-12-02 11:39:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13
[2024-12-02 11:39:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 11:39:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 11:39:29,595 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 11:39:29,597 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 11:39:30,438 INFO L? ?]: Removed 261 outVars from TransFormulas that were not future-live.
[2024-12-02 11:39:30,438 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 11:39:30,454 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 11:39:30,454 INFO L312 CfgBuilder]: Removed 9 assume(true) statements.
[2024-12-02 11:39:30,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:39:30 BoogieIcfgContainer
[2024-12-02 11:39:30,455 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 11:39:30,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 11:39:30,457 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 11:39:30,463 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 11:39:30,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:39:28" (1/3) ...
[2024-12-02 11:39:30,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497a0573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:39:30, skipping insertion in model container
[2024-12-02 11:39:30,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:39:28" (2/3) ...
[2024-12-02 11:39:30,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497a0573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:39:30, skipping insertion in model container
[2024-12-02 11:39:30,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:39:30" (3/3) ...
[2024-12-02 11:39:30,466 INFO L128 eAbstractionObserver]: Analyzing ICFG basename-1.i
[2024-12-02 11:39:30,484 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 11:39:30,486 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG basename-1.i that has 2 procedures, 248 locations, 1 initial locations, 7 loop locations, and 94 error locations.
[2024-12-02 11:39:30,533 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 11:39:30,546 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=None, 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;@de12d59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 11:39:30,546 INFO L334 AbstractCegarLoop]: Starting to check reachability of 94 error locations.
[2024-12-02 11:39:30,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 150 states have (on average 1.9133333333333333) internal successors, (287), 244 states have internal predecessors, (287), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:30,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-12-02 11:39:30,554 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:30,554 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-12-02 11:39:30,555 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:30,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:30,559 INFO L85 PathProgramCache]: Analyzing trace with hash 37801, now seen corresponding path program 1 times
[2024-12-02 11:39:30,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:30,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587259933]
[2024-12-02 11:39:30,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:30,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:31,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:39:31,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:31,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587259933]
[2024-12-02 11:39:31,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587259933] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:39:31,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:39:31,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:39:31,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386460463]
[2024-12-02 11:39:31,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:39:31,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 11:39:31,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:31,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 11:39:31,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:39:31,080 INFO L87 Difference]: Start difference. First operand has 248 states, 150 states have (on average 1.9133333333333333) internal successors, (287), 244 states have internal predecessors, (287), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 11:39:31,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:31,357 INFO L93 Difference]: Finished difference Result 258 states and 290 transitions.
[2024-12-02 11:39:31,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 11:39:31,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3
[2024-12-02 11:39:31,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:31,366 INFO L225 Difference]: With dead ends: 258
[2024-12-02 11:39:31,366 INFO L226 Difference]: Without dead ends: 256
[2024-12-02 11:39:31,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:39:31,371 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 241 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:31,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 208 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 11:39:31,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states.
[2024-12-02 11:39:31,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 239.
[2024-12-02 11:39:31,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 146 states have (on average 1.821917808219178) internal successors, (266), 235 states have internal predecessors, (266), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:31,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 270 transitions.
[2024-12-02 11:39:31,415 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 270 transitions. Word has length 3
[2024-12-02 11:39:31,415 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:31,415 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 270 transitions.
[2024-12-02 11:39:31,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 11:39:31,416 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 270 transitions.
[2024-12-02 11:39:31,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-12-02 11:39:31,416 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:31,416 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-12-02 11:39:31,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 11:39:31,416 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:31,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:31,417 INFO L85 PathProgramCache]: Analyzing trace with hash 37802, now seen corresponding path program 1 times
[2024-12-02 11:39:31,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:31,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662710141]
[2024-12-02 11:39:31,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:31,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:31,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:39:31,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:31,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662710141]
[2024-12-02 11:39:31,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662710141] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:39:31,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:39:31,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:39:31,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280493829]
[2024-12-02 11:39:31,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:39:31,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 11:39:31,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:31,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 11:39:31,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:39:31,661 INFO L87 Difference]: Start difference. First operand 239 states and 270 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 11:39:31,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:31,864 INFO L93 Difference]: Finished difference Result 238 states and 269 transitions.
[2024-12-02 11:39:31,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 11:39:31,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3
[2024-12-02 11:39:31,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:31,867 INFO L225 Difference]: With dead ends: 238
[2024-12-02 11:39:31,867 INFO L226 Difference]: Without dead ends: 238
[2024-12-02 11:39:31,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:39:31,868 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 8 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:31,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 437 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 11:39:31,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states.
[2024-12-02 11:39:31,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238.
[2024-12-02 11:39:31,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 146 states have (on average 1.8150684931506849) internal successors, (265), 234 states have internal predecessors, (265), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:31,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 269 transitions.
[2024-12-02 11:39:31,881 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 269 transitions. Word has length 3
[2024-12-02 11:39:31,881 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:31,881 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 269 transitions.
[2024-12-02 11:39:31,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 11:39:31,882 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 269 transitions.
[2024-12-02 11:39:31,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-12-02 11:39:31,882 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:31,882 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:31,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 11:39:31,883 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:31,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:31,883 INFO L85 PathProgramCache]: Analyzing trace with hash 549792497, now seen corresponding path program 1 times
[2024-12-02 11:39:31,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:31,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935408747]
[2024-12-02 11:39:31,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:31,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:32,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:39:32,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:32,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935408747]
[2024-12-02 11:39:32,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935408747] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:39:32,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:39:32,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 11:39:32,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648530049]
[2024-12-02 11:39:32,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:39:32,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:39:32,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:32,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:39:32,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:39:32,210 INFO L87 Difference]: Start difference. First operand 238 states and 269 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 11:39:32,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:32,458 INFO L93 Difference]: Finished difference Result 242 states and 273 transitions.
[2024-12-02 11:39:32,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:39:32,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-12-02 11:39:32,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:32,461 INFO L225 Difference]: With dead ends: 242
[2024-12-02 11:39:32,461 INFO L226 Difference]: Without dead ends: 242
[2024-12-02 11:39:32,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 11:39:32,462 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 8 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:32,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 609 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 11:39:32,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states.
[2024-12-02 11:39:32,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 241.
[2024-12-02 11:39:32,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 149 states have (on average 1.7986577181208054) internal successors, (268), 237 states have internal predecessors, (268), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:32,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 272 transitions.
[2024-12-02 11:39:32,474 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 272 transitions. Word has length 7
[2024-12-02 11:39:32,474 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:32,474 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 272 transitions.
[2024-12-02 11:39:32,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 11:39:32,475 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 272 transitions.
[2024-12-02 11:39:32,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-12-02 11:39:32,475 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:32,475 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:32,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 11:39:32,475 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:32,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:32,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1823136790, now seen corresponding path program 1 times
[2024-12-02 11:39:32,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:32,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333631166]
[2024-12-02 11:39:32,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:32,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:32,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:39:32,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:32,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333631166]
[2024-12-02 11:39:32,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333631166] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:39:32,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831678192]
[2024-12-02 11:39:32,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:32,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:39:32,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:39:32,875 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:39:32,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 11:39:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:33,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 11:39:33,187 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:39:33,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:39:33,327 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:39:33,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2024-12-02 11:39:33,477 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:39:33,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831678192] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:39:33,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:39:33,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13
[2024-12-02 11:39:33,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587904556]
[2024-12-02 11:39:33,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:39:33,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-12-02 11:39:33,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:33,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-12-02 11:39:33,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182
[2024-12-02 11:39:33,480 INFO L87 Difference]: Start difference. First operand 241 states and 272 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 11:39:33,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:33,942 INFO L93 Difference]: Finished difference Result 246 states and 277 transitions.
[2024-12-02 11:39:33,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-12-02 11:39:33,943 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2024-12-02 11:39:33,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:33,944 INFO L225 Difference]: With dead ends: 246
[2024-12-02 11:39:33,944 INFO L226 Difference]: Without dead ends: 246
[2024-12-02 11:39:33,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240
[2024-12-02 11:39:33,945 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 261 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:33,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 966 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 11:39:33,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states.
[2024-12-02 11:39:33,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246.
[2024-12-02 11:39:33,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 155 states have (on average 1.761290322580645) internal successors, (273), 242 states have internal predecessors, (273), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:33,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 277 transitions.
[2024-12-02 11:39:33,956 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 277 transitions. Word has length 11
[2024-12-02 11:39:33,956 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:33,956 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 277 transitions.
[2024-12-02 11:39:33,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 11:39:33,957 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 277 transitions.
[2024-12-02 11:39:33,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-12-02 11:39:33,957 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:33,957 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:33,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 11:39:34,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:39:34,158 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:34,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:34,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1655893940, now seen corresponding path program 1 times
[2024-12-02 11:39:34,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:34,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622794036]
[2024-12-02 11:39:34,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:34,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:34,415 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:39:34,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:34,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622794036]
[2024-12-02 11:39:34,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622794036] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:39:34,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498214921]
[2024-12-02 11:39:34,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:34,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:39:34,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:39:34,418 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:39:34,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 11:39:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:34,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-02 11:39:34,714 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:39:34,760 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:39:34,760 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:39:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:39:34,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498214921] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:39:34,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:39:34,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11
[2024-12-02 11:39:34,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643254722]
[2024-12-02 11:39:34,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:39:34,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-12-02 11:39:34,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:34,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-12-02 11:39:34,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110
[2024-12-02 11:39:34,839 INFO L87 Difference]: Start difference. First operand 246 states and 277 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:39:34,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:34,898 INFO L93 Difference]: Finished difference Result 266 states and 297 transitions.
[2024-12-02 11:39:34,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-12-02 11:39:34,898 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25
[2024-12-02 11:39:34,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:34,900 INFO L225 Difference]: With dead ends: 266
[2024-12-02 11:39:34,900 INFO L226 Difference]: Without dead ends: 266
[2024-12-02 11:39:34,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110
[2024-12-02 11:39:34,901 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 6 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:34,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 793 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 11:39:34,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states.
[2024-12-02 11:39:34,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266.
[2024-12-02 11:39:34,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 175 states have (on average 1.6742857142857144) internal successors, (293), 262 states have internal predecessors, (293), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:34,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 297 transitions.
[2024-12-02 11:39:34,911 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 297 transitions. Word has length 25
[2024-12-02 11:39:34,911 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:34,911 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 297 transitions.
[2024-12-02 11:39:34,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:39:34,912 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 297 transitions.
[2024-12-02 11:39:34,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2024-12-02 11:39:34,913 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:34,913 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:34,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 11:39:35,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:39:35,113 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:35,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:35,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1435280105, now seen corresponding path program 2 times
[2024-12-02 11:39:35,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:35,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075378986]
[2024-12-02 11:39:35,114 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 11:39:35,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:35,170 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-12-02 11:39:35,170 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 11:39:35,383 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2024-12-02 11:39:35,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:35,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075378986]
[2024-12-02 11:39:35,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075378986] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:39:35,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:39:35,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:39:35,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683265596]
[2024-12-02 11:39:35,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:39:35,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 11:39:35,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:35,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 11:39:35,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:39:35,384 INFO L87 Difference]: Start difference. First operand 266 states and 297 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:35,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:35,542 INFO L93 Difference]: Finished difference Result 278 states and 310 transitions.
[2024-12-02 11:39:35,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 11:39:35,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45
[2024-12-02 11:39:35,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:35,544 INFO L225 Difference]: With dead ends: 278
[2024-12-02 11:39:35,544 INFO L226 Difference]: Without dead ends: 278
[2024-12-02 11:39:35,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:39:35,545 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 223 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:35,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 211 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 11:39:35,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states.
[2024-12-02 11:39:35,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261.
[2024-12-02 11:39:35,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 175 states have (on average 1.6457142857142857) internal successors, (288), 257 states have internal predecessors, (288), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:35,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 292 transitions.
[2024-12-02 11:39:35,554 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 292 transitions. Word has length 45
[2024-12-02 11:39:35,556 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:35,556 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 292 transitions.
[2024-12-02 11:39:35,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:35,556 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 292 transitions.
[2024-12-02 11:39:35,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2024-12-02 11:39:35,557 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:35,557 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:35,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-02 11:39:35,557 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:35,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:35,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1435280106, now seen corresponding path program 1 times
[2024-12-02 11:39:35,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:35,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212447569]
[2024-12-02 11:39:35,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:35,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:35,999 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:39:36,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:36,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212447569]
[2024-12-02 11:39:36,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212447569] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:39:36,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320617023]
[2024-12-02 11:39:36,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:36,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:39:36,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:39:36,002 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:39:36,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 11:39:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:36,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 11:39:36,313 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:39:36,385 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:39:36,385 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:39:36,516 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:39:36,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320617023] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:39:36,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:39:36,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13
[2024-12-02 11:39:36,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850825885]
[2024-12-02 11:39:36,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:39:36,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-12-02 11:39:36,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:36,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-12-02 11:39:36,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2024-12-02 11:39:36,518 INFO L87 Difference]: Start difference. First operand 261 states and 292 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:39:36,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:36,583 INFO L93 Difference]: Finished difference Result 269 states and 300 transitions.
[2024-12-02 11:39:36,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 11:39:36,583 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45
[2024-12-02 11:39:36,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:36,585 INFO L225 Difference]: With dead ends: 269
[2024-12-02 11:39:36,585 INFO L226 Difference]: Without dead ends: 269
[2024-12-02 11:39:36,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 80 SyntacticMatches, 8 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2024-12-02 11:39:36,586 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 3 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:36,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1290 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 11:39:36,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states.
[2024-12-02 11:39:36,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269.
[2024-12-02 11:39:36,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 183 states have (on average 1.6174863387978142) internal successors, (296), 265 states have internal predecessors, (296), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:36,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 300 transitions.
[2024-12-02 11:39:36,593 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 300 transitions. Word has length 45
[2024-12-02 11:39:36,593 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:36,593 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 300 transitions.
[2024-12-02 11:39:36,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:39:36,594 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 300 transitions.
[2024-12-02 11:39:36,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2024-12-02 11:39:36,595 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:36,595 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:36,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 11:39:36,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:39:36,795 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:36,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:36,796 INFO L85 PathProgramCache]: Analyzing trace with hash 101829340, now seen corresponding path program 2 times
[2024-12-02 11:39:36,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:36,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215335729]
[2024-12-02 11:39:36,796 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 11:39:36,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:36,870 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-12-02 11:39:36,870 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 11:39:37,254 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:37,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:37,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215335729]
[2024-12-02 11:39:37,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215335729] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:39:37,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:39:37,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 11:39:37,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104881544]
[2024-12-02 11:39:37,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:39:37,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 11:39:37,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:37,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 11:39:37,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:39:37,255 INFO L87 Difference]: Start difference. First operand 269 states and 300 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:37,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:37,680 INFO L93 Difference]: Finished difference Result 434 states and 495 transitions.
[2024-12-02 11:39:37,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 11:39:37,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53
[2024-12-02 11:39:37,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:37,683 INFO L225 Difference]: With dead ends: 434
[2024-12-02 11:39:37,683 INFO L226 Difference]: Without dead ends: 434
[2024-12-02 11:39:37,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:39:37,684 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 416 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:37,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 820 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 11:39:37,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states.
[2024-12-02 11:39:37,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 268.
[2024-12-02 11:39:37,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 183 states have (on average 1.6120218579234973) internal successors, (295), 264 states have internal predecessors, (295), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:37,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 299 transitions.
[2024-12-02 11:39:37,694 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 299 transitions. Word has length 53
[2024-12-02 11:39:37,695 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:37,695 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 299 transitions.
[2024-12-02 11:39:37,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:37,695 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 299 transitions.
[2024-12-02 11:39:37,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-12-02 11:39:37,696 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:37,696 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:37,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-12-02 11:39:37,696 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:37,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:37,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1070678237, now seen corresponding path program 1 times
[2024-12-02 11:39:37,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:37,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183580716]
[2024-12-02 11:39:37,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:37,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:38,191 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:38,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:38,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183580716]
[2024-12-02 11:39:38,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183580716] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:39:38,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:39:38,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 11:39:38,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312725410]
[2024-12-02 11:39:38,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:39:38,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 11:39:38,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:38,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 11:39:38,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:39:38,193 INFO L87 Difference]: Start difference. First operand 268 states and 299 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:38,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:38,554 INFO L93 Difference]: Finished difference Result 305 states and 340 transitions.
[2024-12-02 11:39:38,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 11:39:38,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57
[2024-12-02 11:39:38,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:38,556 INFO L225 Difference]: With dead ends: 305
[2024-12-02 11:39:38,556 INFO L226 Difference]: Without dead ends: 305
[2024-12-02 11:39:38,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:39:38,557 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 508 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:38,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 391 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 11:39:38,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states.
[2024-12-02 11:39:38,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 282.
[2024-12-02 11:39:38,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 198 states have (on average 1.601010101010101) internal successors, (317), 278 states have internal predecessors, (317), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:38,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 321 transitions.
[2024-12-02 11:39:38,566 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 321 transitions. Word has length 57
[2024-12-02 11:39:38,566 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:38,566 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 321 transitions.
[2024-12-02 11:39:38,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:38,566 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 321 transitions.
[2024-12-02 11:39:38,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-12-02 11:39:38,567 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:38,567 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:38,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-12-02 11:39:38,568 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:38,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:38,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1070674940, now seen corresponding path program 1 times
[2024-12-02 11:39:38,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:38,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793232808]
[2024-12-02 11:39:38,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:38,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:38,878 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:38,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:38,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793232808]
[2024-12-02 11:39:38,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793232808] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:39:38,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:39:38,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 11:39:38,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072677603]
[2024-12-02 11:39:38,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:39:38,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:39:38,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:38,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:39:38,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:39:38,880 INFO L87 Difference]: Start difference. First operand 282 states and 321 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:39,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:39,107 INFO L93 Difference]: Finished difference Result 316 states and 362 transitions.
[2024-12-02 11:39:39,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:39:39,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57
[2024-12-02 11:39:39,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:39,109 INFO L225 Difference]: With dead ends: 316
[2024-12-02 11:39:39,109 INFO L226 Difference]: Without dead ends: 316
[2024-12-02 11:39:39,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 11:39:39,110 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 380 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:39,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 286 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 11:39:39,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states.
[2024-12-02 11:39:39,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 275.
[2024-12-02 11:39:39,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 198 states have (on average 1.5656565656565657) internal successors, (310), 271 states have internal predecessors, (310), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:39,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 314 transitions.
[2024-12-02 11:39:39,119 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 314 transitions. Word has length 57
[2024-12-02 11:39:39,119 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:39,119 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 314 transitions.
[2024-12-02 11:39:39,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:39,120 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 314 transitions.
[2024-12-02 11:39:39,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-12-02 11:39:39,121 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:39,121 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:39,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-12-02 11:39:39,121 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:39,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:39,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1070674939, now seen corresponding path program 1 times
[2024-12-02 11:39:39,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:39,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244901182]
[2024-12-02 11:39:39,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:39,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:39,506 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:39,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:39,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244901182]
[2024-12-02 11:39:39,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244901182] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:39:39,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:39:39,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 11:39:39,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132338235]
[2024-12-02 11:39:39,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:39:39,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 11:39:39,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:39,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 11:39:39,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:39:39,508 INFO L87 Difference]: Start difference. First operand 275 states and 314 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:39,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:39,592 INFO L93 Difference]: Finished difference Result 281 states and 314 transitions.
[2024-12-02 11:39:39,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 11:39:39,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57
[2024-12-02 11:39:39,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:39,594 INFO L225 Difference]: With dead ends: 281
[2024-12-02 11:39:39,594 INFO L226 Difference]: Without dead ends: 281
[2024-12-02 11:39:39,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:39:39,595 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 258 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:39,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 934 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 11:39:39,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states.
[2024-12-02 11:39:39,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 275.
[2024-12-02 11:39:39,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 198 states have (on average 1.5606060606060606) internal successors, (309), 271 states have internal predecessors, (309), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:39,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 313 transitions.
[2024-12-02 11:39:39,604 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 313 transitions. Word has length 57
[2024-12-02 11:39:39,604 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:39,604 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 313 transitions.
[2024-12-02 11:39:39,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:39,605 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 313 transitions.
[2024-12-02 11:39:39,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-12-02 11:39:39,606 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:39,606 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:39,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-12-02 11:39:39,606 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:39,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:39,607 INFO L85 PathProgramCache]: Analyzing trace with hash 2146741015, now seen corresponding path program 1 times
[2024-12-02 11:39:39,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:39,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98828977]
[2024-12-02 11:39:39,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:39,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:39,846 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:39,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:39,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98828977]
[2024-12-02 11:39:39,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98828977] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:39:39,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:39:39,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:39:39,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501789375]
[2024-12-02 11:39:39,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:39:39,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 11:39:39,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:39,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 11:39:39,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:39:39,847 INFO L87 Difference]: Start difference. First operand 275 states and 313 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:39,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:39,982 INFO L93 Difference]: Finished difference Result 281 states and 321 transitions.
[2024-12-02 11:39:39,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 11:39:39,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60
[2024-12-02 11:39:39,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:39,983 INFO L225 Difference]: With dead ends: 281
[2024-12-02 11:39:39,984 INFO L226 Difference]: Without dead ends: 281
[2024-12-02 11:39:39,984 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 11:39:39,984 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 208 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:39,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 207 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 11:39:39,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states.
[2024-12-02 11:39:39,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 280.
[2024-12-02 11:39:39,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 204 states have (on average 1.553921568627451) internal successors, (317), 276 states have internal predecessors, (317), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:39,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 321 transitions.
[2024-12-02 11:39:39,990 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 321 transitions. Word has length 60
[2024-12-02 11:39:39,990 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:39,990 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 321 transitions.
[2024-12-02 11:39:39,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:39,990 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 321 transitions.
[2024-12-02 11:39:39,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-12-02 11:39:39,991 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:39,991 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:39,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-12-02 11:39:39,991 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:39,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:39,992 INFO L85 PathProgramCache]: Analyzing trace with hash 2146741016, now seen corresponding path program 1 times
[2024-12-02 11:39:39,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:39,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836831884]
[2024-12-02 11:39:39,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:39,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:40,679 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:40,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:40,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836831884]
[2024-12-02 11:39:40,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836831884] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:39:40,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:39:40,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 11:39:40,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391511292]
[2024-12-02 11:39:40,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:39:40,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 11:39:40,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:40,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 11:39:40,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-12-02 11:39:40,681 INFO L87 Difference]: Start difference. First operand 280 states and 321 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:41,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:41,397 INFO L93 Difference]: Finished difference Result 285 states and 321 transitions.
[2024-12-02 11:39:41,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 11:39:41,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60
[2024-12-02 11:39:41,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:41,400 INFO L225 Difference]: With dead ends: 285
[2024-12-02 11:39:41,400 INFO L226 Difference]: Without dead ends: 285
[2024-12-02 11:39:41,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-12-02 11:39:41,400 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 19 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:41,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 880 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-12-02 11:39:41,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states.
[2024-12-02 11:39:41,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 280.
[2024-12-02 11:39:41,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 204 states have (on average 1.5490196078431373) internal successors, (316), 276 states have internal predecessors, (316), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:41,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 320 transitions.
[2024-12-02 11:39:41,408 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 320 transitions. Word has length 60
[2024-12-02 11:39:41,408 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:41,408 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 320 transitions.
[2024-12-02 11:39:41,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:41,409 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 320 transitions.
[2024-12-02 11:39:41,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-12-02 11:39:41,409 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:41,409 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:41,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-12-02 11:39:41,410 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:41,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:41,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1498569257, now seen corresponding path program 1 times
[2024-12-02 11:39:41,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:41,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036526171]
[2024-12-02 11:39:41,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:41,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:41,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:41,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036526171]
[2024-12-02 11:39:41,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036526171] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:39:41,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:39:41,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 11:39:41,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385411034]
[2024-12-02 11:39:41,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:39:41,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 11:39:41,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:41,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 11:39:41,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 11:39:41,930 INFO L87 Difference]: Start difference. First operand 280 states and 320 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:42,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:42,189 INFO L93 Difference]: Finished difference Result 279 states and 318 transitions.
[2024-12-02 11:39:42,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 11:39:42,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63
[2024-12-02 11:39:42,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:42,190 INFO L225 Difference]: With dead ends: 279
[2024-12-02 11:39:42,190 INFO L226 Difference]: Without dead ends: 279
[2024-12-02 11:39:42,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:39:42,191 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 13 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:42,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 729 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 11:39:42,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states.
[2024-12-02 11:39:42,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279.
[2024-12-02 11:39:42,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 204 states have (on average 1.5392156862745099) internal successors, (314), 275 states have internal predecessors, (314), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:42,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 318 transitions.
[2024-12-02 11:39:42,199 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 318 transitions. Word has length 63
[2024-12-02 11:39:42,199 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:42,199 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 318 transitions.
[2024-12-02 11:39:42,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:42,199 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 318 transitions.
[2024-12-02 11:39:42,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-12-02 11:39:42,200 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:42,200 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:42,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-12-02 11:39:42,200 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:42,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:42,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1498569258, now seen corresponding path program 1 times
[2024-12-02 11:39:42,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:42,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530885053]
[2024-12-02 11:39:42,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:42,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:42,857 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:42,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:42,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530885053]
[2024-12-02 11:39:42,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530885053] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:39:42,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:39:42,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 11:39:42,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102079931]
[2024-12-02 11:39:42,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:39:42,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 11:39:42,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:42,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 11:39:42,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 11:39:42,859 INFO L87 Difference]: Start difference. First operand 279 states and 318 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:43,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:43,155 INFO L93 Difference]: Finished difference Result 278 states and 316 transitions.
[2024-12-02 11:39:43,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 11:39:43,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63
[2024-12-02 11:39:43,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:43,157 INFO L225 Difference]: With dead ends: 278
[2024-12-02 11:39:43,157 INFO L226 Difference]: Without dead ends: 278
[2024-12-02 11:39:43,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:39:43,158 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 12 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:43,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 731 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 11:39:43,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states.
[2024-12-02 11:39:43,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278.
[2024-12-02 11:39:43,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 204 states have (on average 1.5294117647058822) internal successors, (312), 274 states have internal predecessors, (312), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:43,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 316 transitions.
[2024-12-02 11:39:43,171 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 316 transitions. Word has length 63
[2024-12-02 11:39:43,171 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:43,171 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 316 transitions.
[2024-12-02 11:39:43,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:43,172 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 316 transitions.
[2024-12-02 11:39:43,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-12-02 11:39:43,172 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:43,172 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:43,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-12-02 11:39:43,172 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:43,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:43,173 INFO L85 PathProgramCache]: Analyzing trace with hash -2045005824, now seen corresponding path program 1 times
[2024-12-02 11:39:43,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:43,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820741276]
[2024-12-02 11:39:43,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:43,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:43,454 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:43,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:43,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820741276]
[2024-12-02 11:39:43,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820741276] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:39:43,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:39:43,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 11:39:43,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431078612]
[2024-12-02 11:39:43,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:39:43,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 11:39:43,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:43,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 11:39:43,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 11:39:43,456 INFO L87 Difference]: Start difference. First operand 278 states and 316 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:43,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:43,679 INFO L93 Difference]: Finished difference Result 277 states and 314 transitions.
[2024-12-02 11:39:43,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 11:39:43,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68
[2024-12-02 11:39:43,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:43,680 INFO L225 Difference]: With dead ends: 277
[2024-12-02 11:39:43,681 INFO L226 Difference]: Without dead ends: 277
[2024-12-02 11:39:43,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:39:43,681 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 7 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:43,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 726 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 11:39:43,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states.
[2024-12-02 11:39:43,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277.
[2024-12-02 11:39:43,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 204 states have (on average 1.5196078431372548) internal successors, (310), 273 states have internal predecessors, (310), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:43,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 314 transitions.
[2024-12-02 11:39:43,686 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 314 transitions. Word has length 68
[2024-12-02 11:39:43,686 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:43,686 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 314 transitions.
[2024-12-02 11:39:43,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:43,687 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 314 transitions.
[2024-12-02 11:39:43,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-12-02 11:39:43,687 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:43,687 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:43,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-12-02 11:39:43,687 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:43,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:43,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2045005823, now seen corresponding path program 1 times
[2024-12-02 11:39:43,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:43,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033937755]
[2024-12-02 11:39:43,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:43,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:44,336 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:44,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:44,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033937755]
[2024-12-02 11:39:44,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033937755] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:39:44,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:39:44,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 11:39:44,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645104599]
[2024-12-02 11:39:44,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:39:44,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 11:39:44,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:44,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 11:39:44,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:39:44,338 INFO L87 Difference]: Start difference. First operand 277 states and 314 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:44,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:44,635 INFO L93 Difference]: Finished difference Result 287 states and 325 transitions.
[2024-12-02 11:39:44,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 11:39:44,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68
[2024-12-02 11:39:44,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:44,637 INFO L225 Difference]: With dead ends: 287
[2024-12-02 11:39:44,637 INFO L226 Difference]: Without dead ends: 287
[2024-12-02 11:39:44,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-12-02 11:39:44,638 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 15 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:44,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 724 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 11:39:44,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states.
[2024-12-02 11:39:44,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 285.
[2024-12-02 11:39:44,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 212 states have (on average 1.5047169811320755) internal successors, (319), 281 states have internal predecessors, (319), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:44,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 323 transitions.
[2024-12-02 11:39:44,645 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 323 transitions. Word has length 68
[2024-12-02 11:39:44,645 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:44,645 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 323 transitions.
[2024-12-02 11:39:44,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:44,645 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 323 transitions.
[2024-12-02 11:39:44,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74
[2024-12-02 11:39:44,646 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:44,646 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:44,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-12-02 11:39:44,646 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:44,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:44,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1789982747, now seen corresponding path program 1 times
[2024-12-02 11:39:44,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:44,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527652970]
[2024-12-02 11:39:44,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:44,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:45,200 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:45,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:45,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527652970]
[2024-12-02 11:39:45,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527652970] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:39:45,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352525206]
[2024-12-02 11:39:45,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:45,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:39:45,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:39:45,202 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:39:45,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 11:39:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:45,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 1238 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-12-02 11:39:45,609 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:39:45,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-12-02 11:39:45,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1
[2024-12-02 11:39:45,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1
[2024-12-02 11:39:45,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 9
[2024-12-02 11:39:45,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 12
[2024-12-02 11:39:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:45,926 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:39:46,172 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:46,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352525206] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:39:46,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:39:46,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 20
[2024-12-02 11:39:46,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45718283]
[2024-12-02 11:39:46,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:39:46,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2024-12-02 11:39:46,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:46,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2024-12-02 11:39:46,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420
[2024-12-02 11:39:46,174 INFO L87 Difference]: Start difference. First operand 285 states and 323 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:46,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:46,984 INFO L93 Difference]: Finished difference Result 298 states and 336 transitions.
[2024-12-02 11:39:46,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-12-02 11:39:46,985 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73
[2024-12-02 11:39:46,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:46,986 INFO L225 Difference]: With dead ends: 298
[2024-12-02 11:39:46,986 INFO L226 Difference]: Without dead ends: 298
[2024-12-02 11:39:46,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=154, Invalid=496, Unknown=0, NotChecked=0, Total=650
[2024-12-02 11:39:46,986 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 29 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:46,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1995 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-12-02 11:39:46,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states.
[2024-12-02 11:39:46,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298.
[2024-12-02 11:39:46,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 226 states have (on average 1.4690265486725664) internal successors, (332), 294 states have internal predecessors, (332), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:46,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 336 transitions.
[2024-12-02 11:39:46,991 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 336 transitions. Word has length 73
[2024-12-02 11:39:46,991 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:46,991 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 336 transitions.
[2024-12-02 11:39:46,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 21 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:46,991 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 336 transitions.
[2024-12-02 11:39:46,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85
[2024-12-02 11:39:46,991 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:46,992 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:47,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-12-02 11:39:47,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2024-12-02 11:39:47,192 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:47,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:47,193 INFO L85 PathProgramCache]: Analyzing trace with hash 122192718, now seen corresponding path program 1 times
[2024-12-02 11:39:47,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:47,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625385409]
[2024-12-02 11:39:47,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:47,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:47,456 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:47,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:47,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625385409]
[2024-12-02 11:39:47,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625385409] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:39:47,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914555474]
[2024-12-02 11:39:47,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:47,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:39:47,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:39:47,459 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:39:47,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-12-02 11:39:47,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:47,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 1301 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-02 11:39:47,812 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:39:47,852 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:47,852 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:39:47,913 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:47,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914555474] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:39:47,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:39:47,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11
[2024-12-02 11:39:47,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204983201]
[2024-12-02 11:39:47,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:39:47,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-12-02 11:39:47,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:47,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-12-02 11:39:47,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110
[2024-12-02 11:39:47,915 INFO L87 Difference]: Start difference. First operand 298 states and 336 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:47,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:47,956 INFO L93 Difference]: Finished difference Result 355 states and 391 transitions.
[2024-12-02 11:39:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-12-02 11:39:47,956 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84
[2024-12-02 11:39:47,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:47,957 INFO L225 Difference]: With dead ends: 355
[2024-12-02 11:39:47,958 INFO L226 Difference]: Without dead ends: 355
[2024-12-02 11:39:47,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110
[2024-12-02 11:39:47,958 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 21 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:47,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1223 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 11:39:47,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states.
[2024-12-02 11:39:47,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 348.
[2024-12-02 11:39:47,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 276 states have (on average 1.4021739130434783) internal successors, (387), 344 states have internal predecessors, (387), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:47,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 391 transitions.
[2024-12-02 11:39:47,963 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 391 transitions. Word has length 84
[2024-12-02 11:39:47,963 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:47,963 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 391 transitions.
[2024-12-02 11:39:47,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:47,963 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 391 transitions.
[2024-12-02 11:39:47,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110
[2024-12-02 11:39:47,964 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:47,964 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:47,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-12-02 11:39:48,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:39:48,165 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:48,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:48,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1035400936, now seen corresponding path program 2 times
[2024-12-02 11:39:48,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:48,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596666992]
[2024-12-02 11:39:48,166 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 11:39:48,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:48,267 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 11:39:48,267 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 11:39:48,597 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 3 proven. 148 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:48,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:48,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596666992]
[2024-12-02 11:39:48,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596666992] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:39:48,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660993176]
[2024-12-02 11:39:48,598 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 11:39:48,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:39:48,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:39:48,600 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:39:48,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-12-02 11:39:49,048 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 11:39:49,048 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 11:39:49,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 1446 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 11:39:49,056 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:39:49,128 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 3 proven. 148 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:49,128 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:39:49,237 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 3 proven. 148 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:39:49,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660993176] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:39:49,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:39:49,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13
[2024-12-02 11:39:49,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095543668]
[2024-12-02 11:39:49,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:39:49,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-12-02 11:39:49,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:49,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-12-02 11:39:49,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2024-12-02 11:39:49,239 INFO L87 Difference]: Start difference. First operand 348 states and 391 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:49,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:49,291 INFO L93 Difference]: Finished difference Result 377 states and 413 transitions.
[2024-12-02 11:39:49,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 11:39:49,292 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109
[2024-12-02 11:39:49,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:49,293 INFO L225 Difference]: With dead ends: 377
[2024-12-02 11:39:49,293 INFO L226 Difference]: Without dead ends: 377
[2024-12-02 11:39:49,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 208 SyntacticMatches, 8 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2024-12-02 11:39:49,294 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 28 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:49,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 754 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 11:39:49,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states.
[2024-12-02 11:39:49,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 368.
[2024-12-02 11:39:49,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 296 states have (on average 1.3817567567567568) internal successors, (409), 364 states have internal predecessors, (409), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:49,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 413 transitions.
[2024-12-02 11:39:49,302 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 413 transitions. Word has length 109
[2024-12-02 11:39:49,302 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:49,302 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 413 transitions.
[2024-12-02 11:39:49,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:49,303 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 413 transitions.
[2024-12-02 11:39:49,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2024-12-02 11:39:49,304 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:49,304 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:49,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-12-02 11:39:49,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:39:49,504 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:49,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:49,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1828273832, now seen corresponding path program 3 times
[2024-12-02 11:39:49,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:49,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121042065]
[2024-12-02 11:39:49,505 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 11:39:49,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:49,590 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-12-02 11:39:49,590 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 11:39:50,251 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:39:50,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:50,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121042065]
[2024-12-02 11:39:50,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121042065] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:39:50,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092451626]
[2024-12-02 11:39:50,252 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 11:39:50,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:39:50,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:39:50,253 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:39:50,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-12-02 11:39:50,627 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-12-02 11:39:50,627 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 11:39:50,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-12-02 11:39:50,633 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:39:50,717 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:39:50,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14
[2024-12-02 11:39:50,731 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 11:39:50,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-12-02 11:39:51,398 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:39:51,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-12-02 11:39:51,408 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 11:39:51,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-12-02 11:39:51,433 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:39:51,433 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:39:53,075 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 11:39:53,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61
[2024-12-02 11:39:53,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45
[2024-12-02 11:39:53,366 INFO L349 Elim1Store]: treesize reduction 5, result has 80.0 percent of original size
[2024-12-02 11:39:53,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 49
[2024-12-02 11:39:53,412 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:39:53,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092451626] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:39:53,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:39:53,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 25
[2024-12-02 11:39:53,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226640323]
[2024-12-02 11:39:53,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:39:53,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states
[2024-12-02 11:39:53,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:53,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants.
[2024-12-02 11:39:53,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650
[2024-12-02 11:39:53,415 INFO L87 Difference]: Start difference. First operand 368 states and 413 transitions. Second operand has 26 states, 25 states have (on average 3.4) internal successors, (85), 25 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:39:55,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:55,066 INFO L93 Difference]: Finished difference Result 498 states and 537 transitions.
[2024-12-02 11:39:55,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-12-02 11:39:55,067 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.4) internal successors, (85), 25 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 119
[2024-12-02 11:39:55,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:55,068 INFO L225 Difference]: With dead ends: 498
[2024-12-02 11:39:55,068 INFO L226 Difference]: Without dead ends: 498
[2024-12-02 11:39:55,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 224 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=321, Invalid=939, Unknown=0, NotChecked=0, Total=1260
[2024-12-02 11:39:55,069 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 1181 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:55,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 1289 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-12-02 11:39:55,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states.
[2024-12-02 11:39:55,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 309.
[2024-12-02 11:39:55,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 241 states have (on average 1.4107883817427387) internal successors, (340), 305 states have internal predecessors, (340), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:55,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 344 transitions.
[2024-12-02 11:39:55,074 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 344 transitions. Word has length 119
[2024-12-02 11:39:55,074 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:55,074 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 344 transitions.
[2024-12-02 11:39:55,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.4) internal successors, (85), 25 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:39:55,074 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 344 transitions.
[2024-12-02 11:39:55,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2024-12-02 11:39:55,075 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:55,075 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:55,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-12-02 11:39:55,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:39:55,276 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:55,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:55,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1828277130, now seen corresponding path program 1 times
[2024-12-02 11:39:55,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:55,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301933334]
[2024-12-02 11:39:55,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:55,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:39:56,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:56,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301933334]
[2024-12-02 11:39:56,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301933334] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:39:56,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923232405]
[2024-12-02 11:39:56,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:56,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:39:56,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:39:56,076 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:39:56,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-12-02 11:39:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:56,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 1504 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-12-02 11:39:56,485 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:39:56,564 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:39:56,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-12-02 11:39:56,572 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 11:39:56,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-12-02 11:39:56,835 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:39:56,835 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:39:57,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45
[2024-12-02 11:39:57,307 INFO L349 Elim1Store]: treesize reduction 5, result has 80.0 percent of original size
[2024-12-02 11:39:57,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 49
[2024-12-02 11:39:57,343 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:39:57,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923232405] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:39:57,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:39:57,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21
[2024-12-02 11:39:57,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941202821]
[2024-12-02 11:39:57,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:39:57,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2024-12-02 11:39:57,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:39:57,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2024-12-02 11:39:57,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462
[2024-12-02 11:39:57,345 INFO L87 Difference]: Start difference. First operand 309 states and 344 transitions. Second operand has 22 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 22 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:57,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:39:57,854 INFO L93 Difference]: Finished difference Result 375 states and 409 transitions.
[2024-12-02 11:39:57,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 11:39:57,855 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 22 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119
[2024-12-02 11:39:57,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:39:57,856 INFO L225 Difference]: With dead ends: 375
[2024-12-02 11:39:57,856 INFO L226 Difference]: Without dead ends: 375
[2024-12-02 11:39:57,856 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=218, Invalid=538, Unknown=0, NotChecked=0, Total=756
[2024-12-02 11:39:57,857 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 1716 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 11:39:57,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1716 Valid, 664 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 11:39:57,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states.
[2024-12-02 11:39:57,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 306.
[2024-12-02 11:39:57,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 241 states have (on average 1.3983402489626555) internal successors, (337), 302 states have internal predecessors, (337), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:39:57,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 341 transitions.
[2024-12-02 11:39:57,863 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 341 transitions. Word has length 119
[2024-12-02 11:39:57,863 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:39:57,863 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 341 transitions.
[2024-12-02 11:39:57,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 22 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:39:57,863 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 341 transitions.
[2024-12-02 11:39:57,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123
[2024-12-02 11:39:57,864 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:39:57,864 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:39:57,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-12-02 11:39:58,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21
[2024-12-02 11:39:58,064 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:39:58,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:39:58,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1625440627, now seen corresponding path program 1 times
[2024-12-02 11:39:58,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:39:58,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419701914]
[2024-12-02 11:39:58,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:58,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:39:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:39:58,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:39:58,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419701914]
[2024-12-02 11:39:58,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419701914] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:39:58,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555844005]
[2024-12-02 11:39:58,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:39:58,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:39:58,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:39:58,969 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:39:58,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-12-02 11:39:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:39:59,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 26 conjuncts are in the unsatisfiable core
[2024-12-02 11:39:59,373 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:39:59,392 INFO L349 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size
[2024-12-02 11:39:59,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 23
[2024-12-02 11:39:59,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5
[2024-12-02 11:39:59,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-12-02 11:39:59,638 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:39:59,653 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size
[2024-12-02 11:39:59,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 40
[2024-12-02 11:39:59,666 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 11:39:59,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-12-02 11:40:00,916 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:40:00,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 31
[2024-12-02 11:40:00,926 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 11:40:00,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-12-02 11:40:01,035 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:40:01,036 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:40:02,309 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 11:40:02,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61
[2024-12-02 11:40:02,664 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:40:02,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555844005] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:40:02,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:40:02,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 24
[2024-12-02 11:40:02,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626558353]
[2024-12-02 11:40:02,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:40:02,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2024-12-02 11:40:02,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:40:02,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2024-12-02 11:40:02,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600
[2024-12-02 11:40:02,667 INFO L87 Difference]: Start difference. First operand 306 states and 341 transitions. Second operand has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:05,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:05,024 INFO L93 Difference]: Finished difference Result 647 states and 718 transitions.
[2024-12-02 11:40:05,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2024-12-02 11:40:05,025 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122
[2024-12-02 11:40:05,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:05,026 INFO L225 Difference]: With dead ends: 647
[2024-12-02 11:40:05,026 INFO L226 Difference]: Without dead ends: 647
[2024-12-02 11:40:05,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 228 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=360, Invalid=1200, Unknown=0, NotChecked=0, Total=1560
[2024-12-02 11:40:05,027 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 1823 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:05,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1823 Valid, 1464 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-12-02 11:40:05,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states.
[2024-12-02 11:40:05,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 586.
[2024-12-02 11:40:05,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 521 states have (on average 1.3339731285988483) internal successors, (695), 581 states have internal predecessors, (695), 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 11:40:05,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 701 transitions.
[2024-12-02 11:40:05,033 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 701 transitions. Word has length 122
[2024-12-02 11:40:05,034 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:05,034 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 701 transitions.
[2024-12-02 11:40:05,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:05,034 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 701 transitions.
[2024-12-02 11:40:05,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2024-12-02 11:40:05,034 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:05,034 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:05,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-12-02 11:40:05,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22
[2024-12-02 11:40:05,235 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:05,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:05,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1899694931, now seen corresponding path program 1 times
[2024-12-02 11:40:05,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:40:05,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632832118]
[2024-12-02 11:40:05,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:05,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:40:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:05,628 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked.
[2024-12-02 11:40:05,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:40:05,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632832118]
[2024-12-02 11:40:05,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632832118] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:40:05,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:40:05,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 11:40:05,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7071878]
[2024-12-02 11:40:05,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:40:05,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 11:40:05,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:40:05,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 11:40:05,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:40:05,630 INFO L87 Difference]: Start difference. First operand 586 states and 701 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:05,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:05,785 INFO L93 Difference]: Finished difference Result 666 states and 817 transitions.
[2024-12-02 11:40:05,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 11:40:05,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123
[2024-12-02 11:40:05,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:05,788 INFO L225 Difference]: With dead ends: 666
[2024-12-02 11:40:05,788 INFO L226 Difference]: Without dead ends: 666
[2024-12-02 11:40:05,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-12-02 11:40:05,788 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 418 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:05,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 545 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 11:40:05,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states.
[2024-12-02 11:40:05,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 596.
[2024-12-02 11:40:05,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 531 states have (on average 1.3314500941619585) internal successors, (707), 591 states have internal predecessors, (707), 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 11:40:05,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 713 transitions.
[2024-12-02 11:40:05,795 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 713 transitions. Word has length 123
[2024-12-02 11:40:05,795 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:05,795 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 713 transitions.
[2024-12-02 11:40:05,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:05,795 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 713 transitions.
[2024-12-02 11:40:05,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-12-02 11:40:05,795 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:05,795 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:05,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-12-02 11:40:05,796 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:05,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:05,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1195197885, now seen corresponding path program 1 times
[2024-12-02 11:40:05,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:40:05,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737520088]
[2024-12-02 11:40:05,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:05,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:40:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:07,219 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:40:07,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:40:07,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737520088]
[2024-12-02 11:40:07,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737520088] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:40:07,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580409189]
[2024-12-02 11:40:07,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:07,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:07,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:40:07,221 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:40:07,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-12-02 11:40:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:07,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 1526 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-12-02 11:40:07,658 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:40:07,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2024-12-02 11:40:07,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2024-12-02 11:40:07,752 INFO L349 Elim1Store]: treesize reduction 25, result has 30.6 percent of original size
[2024-12-02 11:40:07,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 15
[2024-12-02 11:40:07,761 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:40:07,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15
[2024-12-02 11:40:08,400 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:40:08,400 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:40:09,038 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:40:09,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580409189] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:40:09,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:40:09,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 22
[2024-12-02 11:40:09,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655481459]
[2024-12-02 11:40:09,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:40:09,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2024-12-02 11:40:09,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:40:09,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2024-12-02 11:40:09,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462
[2024-12-02 11:40:09,040 INFO L87 Difference]: Start difference. First operand 596 states and 713 transitions. Second operand has 22 states, 22 states have (on average 3.909090909090909) internal successors, (86), 22 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:09,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:09,427 INFO L93 Difference]: Finished difference Result 765 states and 937 transitions.
[2024-12-02 11:40:09,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 11:40:09,427 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.909090909090909) internal successors, (86), 22 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125
[2024-12-02 11:40:09,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:09,429 INFO L225 Difference]: With dead ends: 765
[2024-12-02 11:40:09,429 INFO L226 Difference]: Without dead ends: 765
[2024-12-02 11:40:09,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=195, Invalid=675, Unknown=0, NotChecked=0, Total=870
[2024-12-02 11:40:09,429 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 1018 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:09,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 2516 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 11:40:09,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states.
[2024-12-02 11:40:09,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 599.
[2024-12-02 11:40:09,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 534 states have (on average 1.3295880149812733) internal successors, (710), 594 states have internal predecessors, (710), 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 11:40:09,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 716 transitions.
[2024-12-02 11:40:09,439 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 716 transitions. Word has length 125
[2024-12-02 11:40:09,439 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:09,439 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 716 transitions.
[2024-12-02 11:40:09,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.909090909090909) internal successors, (86), 22 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:09,440 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 716 transitions.
[2024-12-02 11:40:09,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127
[2024-12-02 11:40:09,440 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:09,440 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:09,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-12-02 11:40:09,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:09,641 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr47REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:09,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:09,641 INFO L85 PathProgramCache]: Analyzing trace with hash -972207023, now seen corresponding path program 1 times
[2024-12-02 11:40:09,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:40:09,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046581517]
[2024-12-02 11:40:09,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:09,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:40:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:10,175 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked.
[2024-12-02 11:40:10,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:40:10,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046581517]
[2024-12-02 11:40:10,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046581517] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:40:10,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:40:10,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-12-02 11:40:10,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204685607]
[2024-12-02 11:40:10,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:40:10,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 11:40:10,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:40:10,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 11:40:10,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-12-02 11:40:10,177 INFO L87 Difference]: Start difference. First operand 599 states and 716 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:10,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:10,282 INFO L93 Difference]: Finished difference Result 662 states and 803 transitions.
[2024-12-02 11:40:10,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 11:40:10,283 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126
[2024-12-02 11:40:10,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:10,284 INFO L225 Difference]: With dead ends: 662
[2024-12-02 11:40:10,284 INFO L226 Difference]: Without dead ends: 662
[2024-12-02 11:40:10,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-12-02 11:40:10,284 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 42 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:10,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 1336 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 11:40:10,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states.
[2024-12-02 11:40:10,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 611.
[2024-12-02 11:40:10,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 546 states have (on average 1.326007326007326) internal successors, (724), 606 states have internal predecessors, (724), 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 11:40:10,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 730 transitions.
[2024-12-02 11:40:10,294 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 730 transitions. Word has length 126
[2024-12-02 11:40:10,294 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:10,294 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 730 transitions.
[2024-12-02 11:40:10,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:10,294 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 730 transitions.
[2024-12-02 11:40:10,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2024-12-02 11:40:10,295 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:10,295 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:10,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2024-12-02 11:40:10,295 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:10,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:10,296 INFO L85 PathProgramCache]: Analyzing trace with hash -2032766766, now seen corresponding path program 1 times
[2024-12-02 11:40:10,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:40:10,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451984564]
[2024-12-02 11:40:10,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:10,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:40:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked.
[2024-12-02 11:40:10,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:40:10,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451984564]
[2024-12-02 11:40:10,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451984564] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:40:10,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:40:10,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 11:40:10,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105963355]
[2024-12-02 11:40:10,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:40:10,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:40:10,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:40:10,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:40:10,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:40:10,539 INFO L87 Difference]: Start difference. First operand 611 states and 730 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:10,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:10,558 INFO L93 Difference]: Finished difference Result 615 states and 734 transitions.
[2024-12-02 11:40:10,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:40:10,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 129
[2024-12-02 11:40:10,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:10,560 INFO L225 Difference]: With dead ends: 615
[2024-12-02 11:40:10,560 INFO L226 Difference]: Without dead ends: 615
[2024-12-02 11:40:10,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:40:10,561 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 0 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:10,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 706 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 11:40:10,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states.
[2024-12-02 11:40:10,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615.
[2024-12-02 11:40:10,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 550 states have (on average 1.3236363636363637) internal successors, (728), 610 states have internal predecessors, (728), 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 11:40:10,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 734 transitions.
[2024-12-02 11:40:10,568 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 734 transitions. Word has length 129
[2024-12-02 11:40:10,568 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:10,569 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 734 transitions.
[2024-12-02 11:40:10,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 734 transitions.
[2024-12-02 11:40:10,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-12-02 11:40:10,569 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:10,570 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:10,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2024-12-02 11:40:10,570 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr57REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:10,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:10,570 INFO L85 PathProgramCache]: Analyzing trace with hash 722032721, now seen corresponding path program 1 times
[2024-12-02 11:40:10,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:40:10,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808050066]
[2024-12-02 11:40:10,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:10,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:40:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:10,743 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked.
[2024-12-02 11:40:10,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:40:10,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808050066]
[2024-12-02 11:40:10,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808050066] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:40:10,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:40:10,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:40:10,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024766731]
[2024-12-02 11:40:10,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:40:10,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 11:40:10,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:40:10,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 11:40:10,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:40:10,745 INFO L87 Difference]: Start difference. First operand 615 states and 734 transitions. Second operand has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:10,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:10,833 INFO L93 Difference]: Finished difference Result 615 states and 734 transitions.
[2024-12-02 11:40:10,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 11:40:10,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131
[2024-12-02 11:40:10,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:10,835 INFO L225 Difference]: With dead ends: 615
[2024-12-02 11:40:10,835 INFO L226 Difference]: Without dead ends: 615
[2024-12-02 11:40:10,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:40:10,835 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 1 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:10,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 399 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 11:40:10,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states.
[2024-12-02 11:40:10,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 614.
[2024-12-02 11:40:10,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 550 states have (on average 1.3218181818181818) internal successors, (727), 609 states have internal predecessors, (727), 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 11:40:10,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 733 transitions.
[2024-12-02 11:40:10,844 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 733 transitions. Word has length 131
[2024-12-02 11:40:10,845 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:10,845 INFO L471 AbstractCegarLoop]: Abstraction has 614 states and 733 transitions.
[2024-12-02 11:40:10,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:10,845 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 733 transitions.
[2024-12-02 11:40:10,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-12-02 11:40:10,846 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:10,846 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:10,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2024-12-02 11:40:10,846 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:10,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:10,847 INFO L85 PathProgramCache]: Analyzing trace with hash 722032722, now seen corresponding path program 1 times
[2024-12-02 11:40:10,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:40:10,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812870972]
[2024-12-02 11:40:10,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:10,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:40:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:11,128 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked.
[2024-12-02 11:40:11,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:40:11,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812870972]
[2024-12-02 11:40:11,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812870972] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:40:11,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:40:11,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:40:11,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475521951]
[2024-12-02 11:40:11,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:40:11,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 11:40:11,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:40:11,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 11:40:11,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:40:11,130 INFO L87 Difference]: Start difference. First operand 614 states and 733 transitions. Second operand has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:11,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:11,225 INFO L93 Difference]: Finished difference Result 613 states and 732 transitions.
[2024-12-02 11:40:11,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 11:40:11,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131
[2024-12-02 11:40:11,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:11,226 INFO L225 Difference]: With dead ends: 613
[2024-12-02 11:40:11,226 INFO L226 Difference]: Without dead ends: 613
[2024-12-02 11:40:11,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:40:11,227 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 0 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:11,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 404 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 11:40:11,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states.
[2024-12-02 11:40:11,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613.
[2024-12-02 11:40:11,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 550 states have (on average 1.32) internal successors, (726), 608 states have internal predecessors, (726), 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 11:40:11,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 732 transitions.
[2024-12-02 11:40:11,233 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 732 transitions. Word has length 131
[2024-12-02 11:40:11,234 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:11,234 INFO L471 AbstractCegarLoop]: Abstraction has 613 states and 732 transitions.
[2024-12-02 11:40:11,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:11,234 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 732 transitions.
[2024-12-02 11:40:11,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2024-12-02 11:40:11,235 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:11,235 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:11,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2024-12-02 11:40:11,235 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:11,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:11,235 INFO L85 PathProgramCache]: Analyzing trace with hash 879112279, now seen corresponding path program 1 times
[2024-12-02 11:40:11,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:40:11,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361455725]
[2024-12-02 11:40:11,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:11,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:40:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:11,529 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked.
[2024-12-02 11:40:11,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:40:11,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361455725]
[2024-12-02 11:40:11,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361455725] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:40:11,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:40:11,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 11:40:11,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663404765]
[2024-12-02 11:40:11,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:40:11,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:40:11,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:40:11,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:40:11,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:40:11,530 INFO L87 Difference]: Start difference. First operand 613 states and 732 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:11,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:11,552 INFO L93 Difference]: Finished difference Result 614 states and 730 transitions.
[2024-12-02 11:40:11,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:40:11,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134
[2024-12-02 11:40:11,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:11,554 INFO L225 Difference]: With dead ends: 614
[2024-12-02 11:40:11,555 INFO L226 Difference]: Without dead ends: 614
[2024-12-02 11:40:11,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:40:11,555 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 2 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:11,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 695 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 11:40:11,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states.
[2024-12-02 11:40:11,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 611.
[2024-12-02 11:40:11,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 548 states have (on average 1.313868613138686) internal successors, (720), 606 states have internal predecessors, (720), 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 11:40:11,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 726 transitions.
[2024-12-02 11:40:11,565 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 726 transitions. Word has length 134
[2024-12-02 11:40:11,566 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:11,566 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 726 transitions.
[2024-12-02 11:40:11,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:11,566 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 726 transitions.
[2024-12-02 11:40:11,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2024-12-02 11:40:11,567 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:11,567 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:11,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2024-12-02 11:40:11,568 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:11,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:11,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1536089495, now seen corresponding path program 1 times
[2024-12-02 11:40:11,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:40:11,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355820190]
[2024-12-02 11:40:11,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:11,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:40:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:12,005 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked.
[2024-12-02 11:40:12,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:40:12,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355820190]
[2024-12-02 11:40:12,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355820190] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:40:12,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:40:12,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-12-02 11:40:12,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522001107]
[2024-12-02 11:40:12,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:40:12,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-12-02 11:40:12,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:40:12,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-12-02 11:40:12,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110
[2024-12-02 11:40:12,006 INFO L87 Difference]: Start difference. First operand 611 states and 726 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:12,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:12,171 INFO L93 Difference]: Finished difference Result 645 states and 768 transitions.
[2024-12-02 11:40:12,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-12-02 11:40:12,171 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135
[2024-12-02 11:40:12,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:12,173 INFO L225 Difference]: With dead ends: 645
[2024-12-02 11:40:12,173 INFO L226 Difference]: Without dead ends: 645
[2024-12-02 11:40:12,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272
[2024-12-02 11:40:12,173 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 31 mSDsluCounter, 1975 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 2202 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:12,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 2202 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 11:40:12,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states.
[2024-12-02 11:40:12,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 625.
[2024-12-02 11:40:12,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 562 states have (on average 1.311387900355872) internal successors, (737), 620 states have internal predecessors, (737), 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 11:40:12,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 743 transitions.
[2024-12-02 11:40:12,179 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 743 transitions. Word has length 135
[2024-12-02 11:40:12,180 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:12,180 INFO L471 AbstractCegarLoop]: Abstraction has 625 states and 743 transitions.
[2024-12-02 11:40:12,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:12,180 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 743 transitions.
[2024-12-02 11:40:12,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137
[2024-12-02 11:40:12,180 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:12,180 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:12,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2024-12-02 11:40:12,181 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:12,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:12,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1283123048, now seen corresponding path program 1 times
[2024-12-02 11:40:12,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:40:12,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385856379]
[2024-12-02 11:40:12,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:12,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:40:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:12,679 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:40:12,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:40:12,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385856379]
[2024-12-02 11:40:12,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385856379] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:40:12,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109489317]
[2024-12-02 11:40:12,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:12,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:12,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:40:12,681 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:40:12,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-12-02 11:40:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:13,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-12-02 11:40:13,178 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:40:13,368 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:40:13,368 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:40:13,753 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:40:13,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109489317] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:40:13,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:40:13,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12
[2024-12-02 11:40:13,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295706928]
[2024-12-02 11:40:13,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:40:13,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-12-02 11:40:13,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:40:13,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-12-02 11:40:13,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132
[2024-12-02 11:40:13,755 INFO L87 Difference]: Start difference. First operand 625 states and 743 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:13,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:13,879 INFO L93 Difference]: Finished difference Result 747 states and 906 transitions.
[2024-12-02 11:40:13,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-12-02 11:40:13,880 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 136
[2024-12-02 11:40:13,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:13,881 INFO L225 Difference]: With dead ends: 747
[2024-12-02 11:40:13,881 INFO L226 Difference]: Without dead ends: 747
[2024-12-02 11:40:13,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 266 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156
[2024-12-02 11:40:13,882 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 215 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:13,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 1895 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 11:40:13,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states.
[2024-12-02 11:40:13,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 626.
[2024-12-02 11:40:13,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 563 states have (on average 1.310834813499112) internal successors, (738), 621 states have internal predecessors, (738), 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 11:40:13,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 744 transitions.
[2024-12-02 11:40:13,889 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 744 transitions. Word has length 136
[2024-12-02 11:40:13,890 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:13,890 INFO L471 AbstractCegarLoop]: Abstraction has 626 states and 744 transitions.
[2024-12-02 11:40:13,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:13,890 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 744 transitions.
[2024-12-02 11:40:13,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2024-12-02 11:40:13,890 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:13,891 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:13,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-12-02 11:40:14,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:14,091 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:14,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:14,091 INFO L85 PathProgramCache]: Analyzing trace with hash -240216484, now seen corresponding path program 1 times
[2024-12-02 11:40:14,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:40:14,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017870303]
[2024-12-02 11:40:14,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:14,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:40:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:40:14,183 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 11:40:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:40:14,424 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 11:40:14,424 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 11:40:14,425 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE (93 of 94 remaining)
[2024-12-02 11:40:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (92 of 94 remaining)
[2024-12-02 11:40:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (91 of 94 remaining)
[2024-12-02 11:40:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (90 of 94 remaining)
[2024-12-02 11:40:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (89 of 94 remaining)
[2024-12-02 11:40:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (88 of 94 remaining)
[2024-12-02 11:40:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (87 of 94 remaining)
[2024-12-02 11:40:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (86 of 94 remaining)
[2024-12-02 11:40:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 94 remaining)
[2024-12-02 11:40:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (84 of 94 remaining)
[2024-12-02 11:40:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (83 of 94 remaining)
[2024-12-02 11:40:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (82 of 94 remaining)
[2024-12-02 11:40:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (81 of 94 remaining)
[2024-12-02 11:40:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 94 remaining)
[2024-12-02 11:40:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 94 remaining)
[2024-12-02 11:40:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 94 remaining)
[2024-12-02 11:40:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 94 remaining)
[2024-12-02 11:40:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 94 remaining)
[2024-12-02 11:40:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 94 remaining)
[2024-12-02 11:40:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 94 remaining)
[2024-12-02 11:40:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 94 remaining)
[2024-12-02 11:40:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 94 remaining)
[2024-12-02 11:40:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 94 remaining)
[2024-12-02 11:40:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_DEREFERENCE (70 of 94 remaining)
[2024-12-02 11:40:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_DEREFERENCE (69 of 94 remaining)
[2024-12-02 11:40:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 94 remaining)
[2024-12-02 11:40:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 94 remaining)
[2024-12-02 11:40:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 94 remaining)
[2024-12-02 11:40:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 94 remaining)
[2024-12-02 11:40:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 94 remaining)
[2024-12-02 11:40:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 94 remaining)
[2024-12-02 11:40:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 94 remaining)
[2024-12-02 11:40:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 94 remaining)
[2024-12-02 11:40:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 94 remaining)
[2024-12-02 11:40:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 94 remaining)
[2024-12-02 11:40:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 94 remaining)
[2024-12-02 11:40:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 94 remaining)
[2024-12-02 11:40:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 94 remaining)
[2024-12-02 11:40:14,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 94 remaining)
[2024-12-02 11:40:14,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK (54 of 94 remaining)
[2024-12-02 11:40:14,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 94 remaining)
[2024-12-02 11:40:14,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 94 remaining)
[2024-12-02 11:40:14,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE (51 of 94 remaining)
[2024-12-02 11:40:14,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_DEREFERENCE (50 of 94 remaining)
[2024-12-02 11:40:14,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE (49 of 94 remaining)
[2024-12-02 11:40:14,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE (48 of 94 remaining)
[2024-12-02 11:40:14,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 94 remaining)
[2024-12-02 11:40:14,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 94 remaining)
[2024-12-02 11:40:14,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 94 remaining)
[2024-12-02 11:40:14,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 94 remaining)
[2024-12-02 11:40:14,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_DEREFERENCE (43 of 94 remaining)
[2024-12-02 11:40:14,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_DEREFERENCE (42 of 94 remaining)
[2024-12-02 11:40:14,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 94 remaining)
[2024-12-02 11:40:14,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 94 remaining)
[2024-12-02 11:40:14,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 94 remaining)
[2024-12-02 11:40:14,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 94 remaining)
[2024-12-02 11:40:14,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 94 remaining)
[2024-12-02 11:40:14,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 94 remaining)
[2024-12-02 11:40:14,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 94 remaining)
[2024-12-02 11:40:14,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 94 remaining)
[2024-12-02 11:40:14,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 94 remaining)
[2024-12-02 11:40:14,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 94 remaining)
[2024-12-02 11:40:14,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE (31 of 94 remaining)
[2024-12-02 11:40:14,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 94 remaining)
[2024-12-02 11:40:14,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 94 remaining)
[2024-12-02 11:40:14,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 94 remaining)
[2024-12-02 11:40:14,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 94 remaining)
[2024-12-02 11:40:14,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_DEREFERENCE (26 of 94 remaining)
[2024-12-02 11:40:14,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_DEREFERENCE (25 of 94 remaining)
[2024-12-02 11:40:14,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_DEREFERENCE (24 of 94 remaining)
[2024-12-02 11:40:14,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_DEREFERENCE (23 of 94 remaining)
[2024-12-02 11:40:14,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 94 remaining)
[2024-12-02 11:40:14,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 94 remaining)
[2024-12-02 11:40:14,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_DEREFERENCE (20 of 94 remaining)
[2024-12-02 11:40:14,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_DEREFERENCE (19 of 94 remaining)
[2024-12-02 11:40:14,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 94 remaining)
[2024-12-02 11:40:14,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 94 remaining)
[2024-12-02 11:40:14,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 94 remaining)
[2024-12-02 11:40:14,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 94 remaining)
[2024-12-02 11:40:14,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 94 remaining)
[2024-12-02 11:40:14,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 94 remaining)
[2024-12-02 11:40:14,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE (12 of 94 remaining)
[2024-12-02 11:40:14,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE (11 of 94 remaining)
[2024-12-02 11:40:14,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE (10 of 94 remaining)
[2024-12-02 11:40:14,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_FREE (9 of 94 remaining)
[2024-12-02 11:40:14,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr85ASSERT_VIOLATIONMEMORY_FREE (8 of 94 remaining)
[2024-12-02 11:40:14,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr86ASSERT_VIOLATIONMEMORY_FREE (7 of 94 remaining)
[2024-12-02 11:40:14,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr87ASSERT_VIOLATIONMEMORY_FREE (6 of 94 remaining)
[2024-12-02 11:40:14,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr88ASSERT_VIOLATIONMEMORY_FREE (5 of 94 remaining)
[2024-12-02 11:40:14,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr89ASSERT_VIOLATIONMEMORY_FREE (4 of 94 remaining)
[2024-12-02 11:40:14,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr90ASSERT_VIOLATIONMEMORY_FREE (3 of 94 remaining)
[2024-12-02 11:40:14,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr91ASSERT_VIOLATIONMEMORY_FREE (2 of 94 remaining)
[2024-12-02 11:40:14,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE (1 of 94 remaining)
[2024-12-02 11:40:14,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_LEAK (0 of 94 remaining)
[2024-12-02 11:40:14,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2024-12-02 11:40:14,438 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:14,522 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 11:40:14,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:40:14 BoogieIcfgContainer
[2024-12-02 11:40:14,527 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 11:40:14,528 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 11:40:14,528 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 11:40:14,528 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 11:40:14,529 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:39:30" (3/4) ...
[2024-12-02 11:40:14,532 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-12-02 11:40:14,533 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 11:40:14,534 INFO L158 Benchmark]: Toolchain (without parser) took 46410.58ms. Allocated memory was 142.6MB in the beginning and 671.1MB in the end (delta: 528.5MB). Free memory was 114.6MB in the beginning and 600.9MB in the end (delta: -486.3MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB.
[2024-12-02 11:40:14,534 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 11:40:14,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 860.26ms. Allocated memory is still 142.6MB. Free memory was 114.4MB in the beginning and 68.0MB in the end (delta: 46.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB.
[2024-12-02 11:40:14,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.49ms. Allocated memory is still 142.6MB. Free memory was 68.0MB in the beginning and 61.4MB in the end (delta: 6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 11:40:14,535 INFO L158 Benchmark]: Boogie Preprocessor took 120.78ms. Allocated memory is still 142.6MB. Free memory was 61.4MB in the beginning and 51.2MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 11:40:14,535 INFO L158 Benchmark]: RCFGBuilder took 1279.37ms. Allocated memory is still 142.6MB. Free memory was 51.2MB in the beginning and 91.6MB in the end (delta: -40.4MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB.
[2024-12-02 11:40:14,535 INFO L158 Benchmark]: TraceAbstraction took 44070.06ms. Allocated memory was 142.6MB in the beginning and 671.1MB in the end (delta: 528.5MB). Free memory was 91.6MB in the beginning and 601.0MB in the end (delta: -509.3MB). Peak memory consumption was 391.9MB. Max. memory is 16.1GB.
[2024-12-02 11:40:14,535 INFO L158 Benchmark]: Witness Printer took 5.05ms. Allocated memory is still 671.1MB. Free memory was 601.0MB in the beginning and 600.9MB in the end (delta: 90.0kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 11:40:14,537 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 860.26ms. Allocated memory is still 142.6MB. Free memory was 114.4MB in the beginning and 68.0MB in the end (delta: 46.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 68.49ms. Allocated memory is still 142.6MB. Free memory was 68.0MB in the beginning and 61.4MB in the end (delta: 6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 120.78ms. Allocated memory is still 142.6MB. Free memory was 61.4MB in the beginning and 51.2MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 1279.37ms. Allocated memory is still 142.6MB. Free memory was 51.2MB in the beginning and 91.6MB in the end (delta: -40.4MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB.
* TraceAbstraction took 44070.06ms. Allocated memory was 142.6MB in the beginning and 671.1MB in the end (delta: 528.5MB). Free memory was 91.6MB in the beginning and 601.0MB in the end (delta: -509.3MB). Peak memory consumption was 391.9MB. Max. memory is 16.1GB.
* Witness Printer took 5.05ms. Allocated memory is still 671.1MB. Free memory was 601.0MB in the beginning and 600.9MB in the end (delta: 90.0kB). There was no memory consumed. 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
- UnprovableResult [Line: 1397]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: overapproximation of strrchr at line 1424.
Possible FailurePath:
[L1318] static const char *applet_name;
[L1319] static signed int bb_errno_location;
[L1320] static signed int * const bb_errno;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
[L1512] static struct utmp dummy_utmp;
VAL [applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}]
[L1575] char *a = malloc(11);
[L1576] a[10] = 0
VAL [applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}]
[L1577] int i=0;
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0]
[L1577] COND TRUE i<10
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0]
[L1578] a[i]=__VERIFIER_nondet_char()
VAL [applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}]
[L1577] ++i
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=1]
[L1577] COND TRUE i<10
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=1]
[L1578] a[i]=__VERIFIER_nondet_char()
VAL [applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}]
[L1577] ++i
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=2]
[L1577] COND TRUE i<10
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=2]
[L1578] a[i]=__VERIFIER_nondet_char()
VAL [applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}]
[L1577] ++i
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=3]
[L1577] COND TRUE i<10
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=3]
[L1578] a[i]=__VERIFIER_nondet_char()
VAL [applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}]
[L1577] ++i
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=4]
[L1577] COND TRUE i<10
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=4]
[L1578] a[i]=__VERIFIER_nondet_char()
VAL [applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}]
[L1577] ++i
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=5]
[L1577] COND TRUE i<10
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=5]
[L1578] a[i]=__VERIFIER_nondet_char()
VAL [applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}]
[L1577] ++i
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=6]
[L1577] COND TRUE i<10
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=6]
[L1578] a[i]=__VERIFIER_nondet_char()
VAL [applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}]
[L1577] ++i
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=7]
[L1577] COND TRUE i<10
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=7]
[L1578] a[i]=__VERIFIER_nondet_char()
VAL [applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}]
[L1577] ++i
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=8]
[L1577] COND TRUE i<10
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=8]
[L1578] a[i]=__VERIFIER_nondet_char()
VAL [applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}]
[L1577] ++i
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=9]
[L1577] COND TRUE i<10
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=9]
[L1578] a[i]=__VERIFIER_nondet_char()
VAL [applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}]
[L1577] ++i
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=10]
[L1577] COND FALSE !(i<10)
VAL [a={-1:0}, applet_name={0:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}]
[L1579] applet_name = a
[L1580] bb_errno_location = __VERIFIER_nondet_int()
[L1581] optind = 1
[L1582] int argc = __VERIFIER_nondet_int();
[L1583] CALL assume_abort_if_not(argc >= 1 && argc <= 10000)
VAL [\old(cond)=1, applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L9] COND FALSE !(!cond)
VAL [\old(cond)=1, applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1583] RET assume_abort_if_not(argc >= 1 && argc <= 10000)
VAL [a={-1:0}, applet_name={-1:0}, argc=1, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1584] char **argv=malloc((argc+1)*sizeof(char*));
[L1585] char **mem_track=malloc((argc+1)*sizeof(char*));
[L1586] argv[argc]=0
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1587] int i=0;
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, mem_track={-13:0}, optind=1]
[L1587] COND TRUE i<argc
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, mem_track={-13:0}, optind=1]
[L1589] argv[i]=malloc(11)
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1590] EXPR argv[i]
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1590] mem_track[i]=argv[i]
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1591] EXPR argv[i]
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1591] argv[i][10] = 0
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1592] int j=0;
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=0, mem_track={-13:0}, optind=1]
[L1592] COND TRUE j<10
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=0, mem_track={-13:0}, optind=1]
[L1593] EXPR argv[i]
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1593] argv[i][j]=__VERIFIER_nondet_char()
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1592] ++j
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=1, mem_track={-13:0}, optind=1]
[L1592] COND TRUE j<10
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=1, mem_track={-13:0}, optind=1]
[L1593] EXPR argv[i]
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1593] argv[i][j]=__VERIFIER_nondet_char()
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1592] ++j
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=2, mem_track={-13:0}, optind=1]
[L1592] COND TRUE j<10
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=2, mem_track={-13:0}, optind=1]
[L1593] EXPR argv[i]
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1593] argv[i][j]=__VERIFIER_nondet_char()
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1592] ++j
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=3, mem_track={-13:0}, optind=1]
[L1592] COND TRUE j<10
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=3, mem_track={-13:0}, optind=1]
[L1593] EXPR argv[i]
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1593] argv[i][j]=__VERIFIER_nondet_char()
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1592] ++j
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=4, mem_track={-13:0}, optind=1]
[L1592] COND TRUE j<10
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=4, mem_track={-13:0}, optind=1]
[L1593] EXPR argv[i]
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1593] argv[i][j]=__VERIFIER_nondet_char()
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1592] ++j
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=5, mem_track={-13:0}, optind=1]
[L1592] COND TRUE j<10
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=5, mem_track={-13:0}, optind=1]
[L1593] EXPR argv[i]
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1593] argv[i][j]=__VERIFIER_nondet_char()
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1592] ++j
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=6, mem_track={-13:0}, optind=1]
[L1592] COND TRUE j<10
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=6, mem_track={-13:0}, optind=1]
[L1593] EXPR argv[i]
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1593] argv[i][j]=__VERIFIER_nondet_char()
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1592] ++j
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=7, mem_track={-13:0}, optind=1]
[L1592] COND TRUE j<10
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=7, mem_track={-13:0}, optind=1]
[L1593] EXPR argv[i]
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1593] argv[i][j]=__VERIFIER_nondet_char()
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1592] ++j
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=8, mem_track={-13:0}, optind=1]
[L1592] COND TRUE j<10
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=8, mem_track={-13:0}, optind=1]
[L1593] EXPR argv[i]
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1593] argv[i][j]=__VERIFIER_nondet_char()
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1592] ++j
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=9, mem_track={-13:0}, optind=1]
[L1592] COND TRUE j<10
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=9, mem_track={-13:0}, optind=1]
[L1593] EXPR argv[i]
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1593] argv[i][j]=__VERIFIER_nondet_char()
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1592] ++j
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, j=10, mem_track={-13:0}, optind=1]
[L1592] COND FALSE !(j<10)
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=0, mem_track={-13:0}, optind=1]
[L1587] ++i
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, i=1, mem_track={-13:0}, optind=1]
[L1587] COND FALSE !(i<argc)
VAL [a={-1:0}, applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, mem_track={-13:0}, optind=1]
[L1595] CALL __main(argc, argv)
[L1326] unsigned long int m;
[L1327] unsigned long int n;
[L1328] char *s;
[L1329] signed int tmp_statement_expression$1;
[L1330] _Bool tmp_if_expr$2;
[L1331] signed int tmp_if_expr$5;
[L1332] signed int tmp_statement_expression$3;
[L1333] signed int return_value___builtin_strcmp$4;
VAL [applet_name={-1:0}, argc=1, argv={-12:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1334] EXPR 1l + argv
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1334] COND FALSE !(!(*(1l + argv) == ((char *)((void *)0))))
[L1393] COND TRUE 4294967294u + (unsigned int)argc >= 2u
[L1394] FCALL bb_show_usage()
[L1395] argv = argv + 1l
VAL [applet_name={-1:0}, argv={-12:8}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1396] EXPR \read(**argv)
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1396] CALL, EXPR bb_get_last_path_component_strip(*argv)
[L1443] char *slash;
[L1444] CALL, EXPR last_char_is(path, 47)
[L1482] COND FALSE !(!(s == ((const char *)((void *)0))))
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1495] return (char *)((void *)0);
VAL [\result={0:0}, applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, c=47, dummy_utmp={10:0}, optind=1]
[L1444] RET, EXPR last_char_is(path, 47)
[L1444] slash=last_char_is(path, 47)
[L1445] char *tmp_post$1;
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1, path={0:0}, slash={0:0}]
[L1446] COND FALSE !(!(slash == ((char *)((void *)0))))
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1454] char *return_value_bb_get_last_path_component_nostrip$2;
[L1455] CALL, EXPR bb_get_last_path_component_nostrip(path)
[L1423] char *slash;
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1, path={0:0}]
[L1424] slash=strrchr(path, 47)
[L1425] _Bool tmp_if_expr$2;
[L1426] _Bool tmp_if_expr$1;
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1, path={0:0}, slash={0:0}]
[L1427] COND TRUE slash == ((char *)((void *)0))
[L1428] tmp_if_expr$2 = 1 != 0
VAL [applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1, path={0:0}, slash={0:0}, tmp_if_expr$2=1]
[L1437] COND TRUE !(tmp_if_expr$2 == (_Bool)0)
[L1438] return (char *)path;
VAL [\result={0:0}, applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1, slash={0:0}]
[L1455] RET, EXPR bb_get_last_path_component_nostrip(path)
[L1455] return_value_bb_get_last_path_component_nostrip$2=bb_get_last_path_component_nostrip(path)
[L1456] return return_value_bb_get_last_path_component_nostrip$2;
VAL [\result={0:0}, applet_name={-1:0}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
[L1396] RET, EXPR bb_get_last_path_component_strip(*argv)
[L1396] s=bb_get_last_path_component_strip(*argv)
[L1397] strlen(s)
VAL [applet_name={-1:0}, argv={-12:8}, bb_errno={0:0}, bb_errno_location=0, dummy_utmp={10:0}, optind=1]
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1342]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1342]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 22]: Unable to prove that all allocated memory was freed
Unable to prove that all allocated memory was freed
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1383]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1383]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1383]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1383]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1488]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1488]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1397]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1402]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1402]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1408]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1408]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1408]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1408]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1597]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1597]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1597]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1598]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1598]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1598]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1599]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1599]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1599]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1600]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1600]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1600]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 1573]: Unable to prove that all allocated memory was freed
Unable to prove that all allocated memory was freed
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 248 locations, 94 error locations. Started 1 CEGAR loops. OverallTime: 43.9s, OverallIterations: 33, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9128 SdHoareTripleChecker+Valid, 8.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9111 mSDsluCounter, 29029 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21966 mSDsCounter, 219 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9035 IncrementalHoareTripleChecker+Invalid, 9254 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 219 mSolverCounterUnsat, 7063 mSDtfsCounter, 9035 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2162 GetRequests, 1850 SyntacticMatches, 19 SemanticMatches, 293 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1399 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=626occurred in iteration=32, InterpolantAutomatonStates: 232, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 32 MinimizatonAttempts, 1046 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 23.2s InterpolantComputationTime, 3646 NumberOfCodeBlocks, 3402 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 4423 ConstructedInterpolants, 135 QuantifiedInterpolants, 29521 SizeOfPredicates, 46 NumberOfNonLiveVariables, 14053 ConjunctsInSsa, 158 ConjunctsInUnsatCore, 54 InterpolantComputations, 21 PerfectInterpolantSequences, 13105/14065 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 could not prove your program: unable to determine feasibility of some traces
[2024-12-02 11:40:14,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/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
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/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_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/basename-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 320ae3d03464475ecb206e8b20150b073c01ab68d3174adb5b7045f5bdb20751
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 11:40:16,510 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 11:40:16,599 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf
[2024-12-02 11:40:16,606 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 11:40:16,606 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 11:40:16,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 11:40:16,629 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 11:40:16,629 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 11:40:16,630 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 11:40:16,630 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 11:40:16,630 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 11:40:16,630 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 11:40:16,630 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 11:40:16,630 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 11:40:16,630 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 11:40:16,631 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 11:40:16,631 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 11:40:16,631 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 11:40:16,631 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-12-02 11:40:16,631 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-12-02 11:40:16,631 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-12-02 11:40:16,631 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 11:40:16,631 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 11:40:16,631 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-12-02 11:40:16,631 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-12-02 11:40:16,631 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 11:40:16,631 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 11:40:16,632 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 11:40:16,632 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 11:40:16,632 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 11:40:16,632 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 11:40:16,632 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 11:40:16,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 11:40:16,632 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 11:40:16,632 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 11:40:16,632 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 11:40:16,632 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 11:40:16,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 11:40:16,633 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 11:40:16,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 11:40:16,633 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-12-02 11:40:16,633 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-12-02 11:40:16,633 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 11:40:16,633 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 11:40:16,633 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 11:40:16,633 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 11:40:16,633 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_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/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 valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 320ae3d03464475ecb206e8b20150b073c01ab68d3174adb5b7045f5bdb20751
[2024-12-02 11:40:16,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 11:40:16,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 11:40:16,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 11:40:16,916 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 11:40:16,916 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 11:40:16,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/busybox-1.22.0/basename-1.i
[2024-12-02 11:40:19,708 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/data/774cd5968/2505fcfde81749958bc7a5305441e473/FLAG494f13b68
[2024-12-02 11:40:19,958 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 11:40:19,959 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/sv-benchmarks/c/busybox-1.22.0/basename-1.i
[2024-12-02 11:40:19,975 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/data/774cd5968/2505fcfde81749958bc7a5305441e473/FLAG494f13b68
[2024-12-02 11:40:20,254 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/data/774cd5968/2505fcfde81749958bc7a5305441e473
[2024-12-02 11:40:20,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 11:40:20,256 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 11:40:20,257 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 11:40:20,257 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 11:40:20,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 11:40:20,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:40:20" (1/1) ...
[2024-12-02 11:40:20,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb24520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:20, skipping insertion in model container
[2024-12-02 11:40:20,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:40:20" (1/1) ...
[2024-12-02 11:40:20,293 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 11:40:20,664 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:40:20,678 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:40:20,681 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:40:20,684 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:40:20,687 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:40:20,693 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:40:20,693 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:40:20,693 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:40:20,695 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:40:20,697 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:40:20,707 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-12-02 11:40:20,717 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 11:40:20,737 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 11:40:20,829 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 11:40:20,928 INFO L204 MainTranslator]: Completed translation
[2024-12-02 11:40:20,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:20 WrapperNode
[2024-12-02 11:40:20,929 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 11:40:20,930 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 11:40:20,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 11:40:20,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 11:40:20,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:20" (1/1) ...
[2024-12-02 11:40:20,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:20" (1/1) ...
[2024-12-02 11:40:20,999 INFO L138 Inliner]: procedures = 353, calls = 461, calls flagged for inlining = 12, calls inlined = 11, statements flattened = 728
[2024-12-02 11:40:20,999 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 11:40:21,000 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 11:40:21,000 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 11:40:21,000 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 11:40:21,009 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:20" (1/1) ...
[2024-12-02 11:40:21,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:20" (1/1) ...
[2024-12-02 11:40:21,018 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:20" (1/1) ...
[2024-12-02 11:40:21,062 INFO L175 MemorySlicer]: Split 410 memory accesses to 14 slices as follows [2, 3, 3, 3, 12, 4, 2, 2, 4, 4, 3, 1, 355, 12]. 87 percent of accesses are in the largest equivalence class. The 378 initializations are split as follows [2, 3, 3, 3, 0, 3, 0, 0, 3, 3, 3, 0, 355, 0]. The 10 writes are split as follows [0, 0, 0, 0, 2, 0, 2, 1, 0, 0, 0, 0, 0, 5].
[2024-12-02 11:40:21,063 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:20" (1/1) ...
[2024-12-02 11:40:21,063 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:20" (1/1) ...
[2024-12-02 11:40:21,097 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:20" (1/1) ...
[2024-12-02 11:40:21,099 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:20" (1/1) ...
[2024-12-02 11:40:21,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:20" (1/1) ...
[2024-12-02 11:40:21,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:20" (1/1) ...
[2024-12-02 11:40:21,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:20" (1/1) ...
[2024-12-02 11:40:21,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 11:40:21,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 11:40:21,132 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 11:40:21,132 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 11:40:21,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:20" (1/1) ...
[2024-12-02 11:40:21,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 11:40:21,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:40:21,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 11:40:21,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 11:40:21,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0
[2024-12-02 11:40:21,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1
[2024-12-02 11:40:21,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2
[2024-12-02 11:40:21,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3
[2024-12-02 11:40:21,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4
[2024-12-02 11:40:21,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5
[2024-12-02 11:40:21,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6
[2024-12-02 11:40:21,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7
[2024-12-02 11:40:21,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8
[2024-12-02 11:40:21,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9
[2024-12-02 11:40:21,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#10
[2024-12-02 11:40:21,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#11
[2024-12-02 11:40:21,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#12
[2024-12-02 11:40:21,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#13
[2024-12-02 11:40:21,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-12-02 11:40:21,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-12-02 11:40:21,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2024-12-02 11:40:21,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3
[2024-12-02 11:40:21,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4
[2024-12-02 11:40:21,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5
[2024-12-02 11:40:21,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6
[2024-12-02 11:40:21,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7
[2024-12-02 11:40:21,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8
[2024-12-02 11:40:21,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9
[2024-12-02 11:40:21,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10
[2024-12-02 11:40:21,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11
[2024-12-02 11:40:21,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12
[2024-12-02 11:40:21,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13
[2024-12-02 11:40:21,196 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-12-02 11:40:21,196 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-12-02 11:40:21,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-12-02 11:40:21,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-12-02 11:40:21,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-12-02 11:40:21,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3
[2024-12-02 11:40:21,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4
[2024-12-02 11:40:21,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5
[2024-12-02 11:40:21,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6
[2024-12-02 11:40:21,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7
[2024-12-02 11:40:21,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8
[2024-12-02 11:40:21,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9
[2024-12-02 11:40:21,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10
[2024-12-02 11:40:21,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11
[2024-12-02 11:40:21,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#11
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#12
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#13
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 11:40:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0
[2024-12-02 11:40:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1
[2024-12-02 11:40:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2
[2024-12-02 11:40:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3
[2024-12-02 11:40:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4
[2024-12-02 11:40:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5
[2024-12-02 11:40:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6
[2024-12-02 11:40:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#7
[2024-12-02 11:40:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#8
[2024-12-02 11:40:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#9
[2024-12-02 11:40:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#10
[2024-12-02 11:40:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#11
[2024-12-02 11:40:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#12
[2024-12-02 11:40:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#13
[2024-12-02 11:40:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-12-02 11:40:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-12-02 11:40:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-12-02 11:40:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6
[2024-12-02 11:40:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#12
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#13
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11
[2024-12-02 11:40:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12
[2024-12-02 11:40:21,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13
[2024-12-02 11:40:21,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 11:40:21,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 11:40:21,591 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 11:40:21,593 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 11:40:22,972 INFO L? ?]: Removed 261 outVars from TransFormulas that were not future-live.
[2024-12-02 11:40:22,972 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 11:40:22,986 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 11:40:22,986 INFO L312 CfgBuilder]: Removed 9 assume(true) statements.
[2024-12-02 11:40:22,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:40:22 BoogieIcfgContainer
[2024-12-02 11:40:22,987 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 11:40:22,995 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 11:40:22,995 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 11:40:22,999 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 11:40:22,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:40:20" (1/3) ...
[2024-12-02 11:40:23,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492d23e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:40:22, skipping insertion in model container
[2024-12-02 11:40:23,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:20" (2/3) ...
[2024-12-02 11:40:23,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492d23e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:40:23, skipping insertion in model container
[2024-12-02 11:40:23,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:40:22" (3/3) ...
[2024-12-02 11:40:23,001 INFO L128 eAbstractionObserver]: Analyzing ICFG basename-1.i
[2024-12-02 11:40:23,013 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 11:40:23,014 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG basename-1.i that has 2 procedures, 248 locations, 1 initial locations, 7 loop locations, and 94 error locations.
[2024-12-02 11:40:23,049 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 11:40:23,060 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=None, 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;@2fcadb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 11:40:23,060 INFO L334 AbstractCegarLoop]: Starting to check reachability of 94 error locations.
[2024-12-02 11:40:23,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 150 states have (on average 1.9133333333333333) internal successors, (287), 244 states have internal predecessors, (287), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:40:23,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-12-02 11:40:23,069 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:23,070 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-12-02 11:40:23,071 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:23,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:23,075 INFO L85 PathProgramCache]: Analyzing trace with hash 37801, now seen corresponding path program 1 times
[2024-12-02 11:40:23,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:40:23,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2109419576]
[2024-12-02 11:40:23,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:23,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:23,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:40:23,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:40:23,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 11:40:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:23,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 11:40:23,810 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:40:23,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2024-12-02 11:40:23,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:40:23,869 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:40:23,870 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:40:23,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109419576]
[2024-12-02 11:40:23,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109419576] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:40:23,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:40:23,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:40:23,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492443946]
[2024-12-02 11:40:23,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:40:23,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 11:40:23,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:40:23,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 11:40:23,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:40:23,903 INFO L87 Difference]: Start difference. First operand has 248 states, 150 states have (on average 1.9133333333333333) internal successors, (287), 244 states have internal predecessors, (287), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 11:40:24,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:24,336 INFO L93 Difference]: Finished difference Result 258 states and 290 transitions.
[2024-12-02 11:40:24,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 11:40:24,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3
[2024-12-02 11:40:24,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:24,346 INFO L225 Difference]: With dead ends: 258
[2024-12-02 11:40:24,347 INFO L226 Difference]: Without dead ends: 256
[2024-12-02 11:40:24,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:40:24,351 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 241 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:24,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 208 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 11:40:24,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states.
[2024-12-02 11:40:24,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 239.
[2024-12-02 11:40:24,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 146 states have (on average 1.821917808219178) internal successors, (266), 235 states have internal predecessors, (266), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:40:24,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 270 transitions.
[2024-12-02 11:40:24,399 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 270 transitions. Word has length 3
[2024-12-02 11:40:24,400 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:24,400 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 270 transitions.
[2024-12-02 11:40:24,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 11:40:24,400 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 270 transitions.
[2024-12-02 11:40:24,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-12-02 11:40:24,400 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:24,400 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-12-02 11:40:24,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 11:40:24,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:24,601 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:24,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:24,602 INFO L85 PathProgramCache]: Analyzing trace with hash 37802, now seen corresponding path program 1 times
[2024-12-02 11:40:24,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:40:24,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1228479738]
[2024-12-02 11:40:24,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:24,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:24,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:40:24,605 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:40:24,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 11:40:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:25,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 11:40:25,432 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:40:25,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-12-02 11:40:25,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:40:25,454 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:40:25,455 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:40:25,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228479738]
[2024-12-02 11:40:25,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228479738] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:40:25,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:40:25,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:40:25,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495374984]
[2024-12-02 11:40:25,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:40:25,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 11:40:25,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:40:25,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 11:40:25,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:40:25,457 INFO L87 Difference]: Start difference. First operand 239 states and 270 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 11:40:26,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:26,020 INFO L93 Difference]: Finished difference Result 238 states and 269 transitions.
[2024-12-02 11:40:26,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 11:40:26,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3
[2024-12-02 11:40:26,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:26,023 INFO L225 Difference]: With dead ends: 238
[2024-12-02 11:40:26,023 INFO L226 Difference]: Without dead ends: 238
[2024-12-02 11:40:26,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:40:26,024 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 8 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:26,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 437 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 11:40:26,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states.
[2024-12-02 11:40:26,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238.
[2024-12-02 11:40:26,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 146 states have (on average 1.8150684931506849) internal successors, (265), 234 states have internal predecessors, (265), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:40:26,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 269 transitions.
[2024-12-02 11:40:26,035 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 269 transitions. Word has length 3
[2024-12-02 11:40:26,035 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:26,035 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 269 transitions.
[2024-12-02 11:40:26,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 11:40:26,035 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 269 transitions.
[2024-12-02 11:40:26,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-12-02 11:40:26,035 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:26,036 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:26,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 11:40:26,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:26,236 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:26,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:26,237 INFO L85 PathProgramCache]: Analyzing trace with hash 549792497, now seen corresponding path program 1 times
[2024-12-02 11:40:26,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:40:26,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1315765272]
[2024-12-02 11:40:26,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:26,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:26,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:40:26,239 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:40:26,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 11:40:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:26,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-02 11:40:26,937 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:40:26,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-12-02 11:40:27,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:40:27,031 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:40:27,031 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:40:27,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315765272]
[2024-12-02 11:40:27,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315765272] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:40:27,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:40:27,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 11:40:27,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19477437]
[2024-12-02 11:40:27,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:40:27,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:40:27,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:40:27,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:40:27,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:40:27,032 INFO L87 Difference]: Start difference. First operand 238 states and 269 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 11:40:27,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:27,809 INFO L93 Difference]: Finished difference Result 242 states and 273 transitions.
[2024-12-02 11:40:27,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:40:27,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-12-02 11:40:27,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:27,811 INFO L225 Difference]: With dead ends: 242
[2024-12-02 11:40:27,811 INFO L226 Difference]: Without dead ends: 242
[2024-12-02 11:40:27,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 11:40:27,812 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 8 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:27,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 609 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-12-02 11:40:27,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states.
[2024-12-02 11:40:27,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 241.
[2024-12-02 11:40:27,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 149 states have (on average 1.7986577181208054) internal successors, (268), 237 states have internal predecessors, (268), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:40:27,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 272 transitions.
[2024-12-02 11:40:27,823 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 272 transitions. Word has length 7
[2024-12-02 11:40:27,823 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:27,823 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 272 transitions.
[2024-12-02 11:40:27,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 11:40:27,824 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 272 transitions.
[2024-12-02 11:40:27,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-12-02 11:40:27,824 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:27,824 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:27,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 11:40:28,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:28,025 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:28,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:28,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1823136790, now seen corresponding path program 1 times
[2024-12-02 11:40:28,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:40:28,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1452604165]
[2024-12-02 11:40:28,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:28,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:28,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:40:28,028 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:40:28,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 11:40:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:28,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-12-02 11:40:28,773 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:40:28,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-12-02 11:40:28,930 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:40:28,930 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:40:29,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:40:29,331 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:40:29,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452604165]
[2024-12-02 11:40:29,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452604165] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:40:29,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 11:40:29,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2024-12-02 11:40:29,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130810205]
[2024-12-02 11:40:29,331 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:40:29,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-12-02 11:40:29,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:40:29,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-12-02 11:40:29,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-12-02 11:40:29,332 INFO L87 Difference]: Start difference. First operand 241 states and 272 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 11:40:31,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:31,871 INFO L93 Difference]: Finished difference Result 246 states and 277 transitions.
[2024-12-02 11:40:31,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 11:40:31,872 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2024-12-02 11:40:31,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:31,873 INFO L225 Difference]: With dead ends: 246
[2024-12-02 11:40:31,873 INFO L226 Difference]: Without dead ends: 246
[2024-12-02 11:40:31,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90
[2024-12-02 11:40:31,873 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 21 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:31,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 783 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2024-12-02 11:40:31,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states.
[2024-12-02 11:40:31,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246.
[2024-12-02 11:40:31,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 155 states have (on average 1.761290322580645) internal successors, (273), 242 states have internal predecessors, (273), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:40:31,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 277 transitions.
[2024-12-02 11:40:31,878 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 277 transitions. Word has length 11
[2024-12-02 11:40:31,878 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:31,878 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 277 transitions.
[2024-12-02 11:40:31,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 11:40:31,879 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 277 transitions.
[2024-12-02 11:40:31,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-12-02 11:40:31,879 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:31,879 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:31,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-12-02 11:40:32,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:32,080 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:32,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:32,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1655893940, now seen corresponding path program 1 times
[2024-12-02 11:40:32,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:40:32,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497258147]
[2024-12-02 11:40:32,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:32,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:32,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:40:32,082 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:40:32,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-12-02 11:40:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:32,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 11:40:32,926 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:40:32,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-12-02 11:40:33,149 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:40:33,149 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:40:33,541 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:40:33,541 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:40:33,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497258147]
[2024-12-02 11:40:33,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497258147] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:40:33,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 11:40:33,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14
[2024-12-02 11:40:33,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399194634]
[2024-12-02 11:40:33,542 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:40:33,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-12-02 11:40:33,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:40:33,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-12-02 11:40:33,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182
[2024-12-02 11:40:33,543 INFO L87 Difference]: Start difference. First operand 246 states and 277 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:40:36,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:36,155 INFO L93 Difference]: Finished difference Result 266 states and 297 transitions.
[2024-12-02 11:40:36,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-12-02 11:40:36,156 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25
[2024-12-02 11:40:36,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:36,157 INFO L225 Difference]: With dead ends: 266
[2024-12-02 11:40:36,157 INFO L226 Difference]: Without dead ends: 266
[2024-12-02 11:40:36,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=220, Unknown=0, NotChecked=0, Total=342
[2024-12-02 11:40:36,158 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 49 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:36,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 1663 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2024-12-02 11:40:36,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states.
[2024-12-02 11:40:36,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266.
[2024-12-02 11:40:36,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 175 states have (on average 1.6742857142857144) internal successors, (293), 262 states have internal predecessors, (293), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:40:36,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 297 transitions.
[2024-12-02 11:40:36,171 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 297 transitions. Word has length 25
[2024-12-02 11:40:36,171 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:36,171 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 297 transitions.
[2024-12-02 11:40:36,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:40:36,171 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 297 transitions.
[2024-12-02 11:40:36,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2024-12-02 11:40:36,172 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:36,172 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:36,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-12-02 11:40:36,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:36,373 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:36,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:36,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1435280105, now seen corresponding path program 2 times
[2024-12-02 11:40:36,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:40:36,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [721410977]
[2024-12-02 11:40:36,374 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 11:40:36,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:36,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:40:36,376 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:40:36,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-12-02 11:40:37,077 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-12-02 11:40:37,077 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 11:40:37,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 11:40:37,150 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:40:37,175 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2024-12-02 11:40:37,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15
[2024-12-02 11:40:37,202 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2024-12-02 11:40:37,202 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:40:37,202 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:40:37,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721410977]
[2024-12-02 11:40:37,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721410977] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:40:37,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:40:37,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:40:37,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590634508]
[2024-12-02 11:40:37,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:40:37,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 11:40:37,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:40:37,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 11:40:37,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:40:37,204 INFO L87 Difference]: Start difference. First operand 266 states and 297 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:37,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:37,867 INFO L93 Difference]: Finished difference Result 278 states and 310 transitions.
[2024-12-02 11:40:37,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 11:40:37,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45
[2024-12-02 11:40:37,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:37,868 INFO L225 Difference]: With dead ends: 278
[2024-12-02 11:40:37,868 INFO L226 Difference]: Without dead ends: 278
[2024-12-02 11:40:37,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 11:40:37,869 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 223 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:37,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 211 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-12-02 11:40:37,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states.
[2024-12-02 11:40:37,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261.
[2024-12-02 11:40:37,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 175 states have (on average 1.6457142857142857) internal successors, (288), 257 states have internal predecessors, (288), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:40:37,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 292 transitions.
[2024-12-02 11:40:37,874 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 292 transitions. Word has length 45
[2024-12-02 11:40:37,875 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:37,875 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 292 transitions.
[2024-12-02 11:40:37,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:37,876 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 292 transitions.
[2024-12-02 11:40:37,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2024-12-02 11:40:37,876 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:37,876 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:37,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-12-02 11:40:38,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:38,077 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:38,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:38,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1435280106, now seen corresponding path program 1 times
[2024-12-02 11:40:38,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:40:38,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2105780994]
[2024-12-02 11:40:38,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:38,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:38,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:40:38,079 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:40:38,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-12-02 11:40:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:38,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-12-02 11:40:38,866 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:40:38,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-12-02 11:40:39,381 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:40:39,381 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:40:42,325 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:40:42,326 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:40:42,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105780994]
[2024-12-02 11:40:42,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105780994] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:40:42,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 11:40:42,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24
[2024-12-02 11:40:42,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140301460]
[2024-12-02 11:40:42,326 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:40:42,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-12-02 11:40:42,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:40:42,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-12-02 11:40:42,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552
[2024-12-02 11:40:42,327 INFO L87 Difference]: Start difference. First operand 261 states and 292 transitions. Second operand has 24 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 24 states have internal predecessors, (82), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:40:51,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:51,218 INFO L93 Difference]: Finished difference Result 301 states and 333 transitions.
[2024-12-02 11:40:51,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states.
[2024-12-02 11:40:51,219 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 24 states have internal predecessors, (82), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45
[2024-12-02 11:40:51,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:51,221 INFO L225 Difference]: With dead ends: 301
[2024-12-02 11:40:51,221 INFO L226 Difference]: Without dead ends: 301
[2024-12-02 11:40:51,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=354, Invalid=836, Unknown=0, NotChecked=0, Total=1190
[2024-12-02 11:40:51,222 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 93 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 2250 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:51,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 2250 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time]
[2024-12-02 11:40:51,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states.
[2024-12-02 11:40:51,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301.
[2024-12-02 11:40:51,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 215 states have (on average 1.5302325581395348) internal successors, (329), 297 states have internal predecessors, (329), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:40:51,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 333 transitions.
[2024-12-02 11:40:51,229 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 333 transitions. Word has length 45
[2024-12-02 11:40:51,229 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:51,229 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 333 transitions.
[2024-12-02 11:40:51,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 24 states have internal predecessors, (82), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:40:51,229 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 333 transitions.
[2024-12-02 11:40:51,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2024-12-02 11:40:51,230 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:51,230 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:51,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-12-02 11:40:51,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:51,431 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:51,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:51,431 INFO L85 PathProgramCache]: Analyzing trace with hash 101829340, now seen corresponding path program 2 times
[2024-12-02 11:40:51,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:40:51,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1748087094]
[2024-12-02 11:40:51,432 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 11:40:51,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:51,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:40:51,433 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:40:51,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-12-02 11:40:52,170 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-12-02 11:40:52,170 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 11:40:52,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-02 11:40:52,247 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:40:52,301 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size
[2024-12-02 11:40:52,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21
[2024-12-02 11:40:52,375 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:40:52,375 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:40:52,375 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:40:52,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748087094]
[2024-12-02 11:40:52,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748087094] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:40:52,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:40:52,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 11:40:52,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470716939]
[2024-12-02 11:40:52,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:40:52,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 11:40:52,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:40:52,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 11:40:52,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:40:52,376 INFO L87 Difference]: Start difference. First operand 301 states and 333 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:54,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:54,190 INFO L93 Difference]: Finished difference Result 466 states and 528 transitions.
[2024-12-02 11:40:54,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 11:40:54,191 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53
[2024-12-02 11:40:54,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:54,192 INFO L225 Difference]: With dead ends: 466
[2024-12-02 11:40:54,192 INFO L226 Difference]: Without dead ends: 466
[2024-12-02 11:40:54,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:40:54,192 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 609 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:54,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 750 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2024-12-02 11:40:54,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states.
[2024-12-02 11:40:54,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 300.
[2024-12-02 11:40:54,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 215 states have (on average 1.5255813953488373) internal successors, (328), 296 states have internal predecessors, (328), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:40:54,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 332 transitions.
[2024-12-02 11:40:54,205 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 332 transitions. Word has length 53
[2024-12-02 11:40:54,205 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:54,205 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 332 transitions.
[2024-12-02 11:40:54,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:54,205 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 332 transitions.
[2024-12-02 11:40:54,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-12-02 11:40:54,206 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:54,206 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:54,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-12-02 11:40:54,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:54,406 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:54,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:54,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1070678237, now seen corresponding path program 1 times
[2024-12-02 11:40:54,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:40:54,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1593195854]
[2024-12-02 11:40:54,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:54,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:54,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:40:54,409 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:40:54,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-12-02 11:40:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:40:55,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-12-02 11:40:55,150 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:40:55,491 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:40:55,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14
[2024-12-02 11:40:55,514 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 11:40:55,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-12-02 11:40:55,597 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:40:55,597 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:40:55,597 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:40:55,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593195854]
[2024-12-02 11:40:55,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593195854] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:40:55,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:40:55,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-12-02 11:40:55,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787804491]
[2024-12-02 11:40:55,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:40:55,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-02 11:40:55,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:40:55,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-02 11:40:55,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-12-02 11:40:55,598 INFO L87 Difference]: Start difference. First operand 300 states and 332 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:59,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:40:59,242 INFO L93 Difference]: Finished difference Result 331 states and 366 transitions.
[2024-12-02 11:40:59,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-12-02 11:40:59,243 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57
[2024-12-02 11:40:59,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:40:59,244 INFO L225 Difference]: With dead ends: 331
[2024-12-02 11:40:59,244 INFO L226 Difference]: Without dead ends: 331
[2024-12-02 11:40:59,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-12-02 11:40:59,245 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 490 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2024-12-02 11:40:59,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 811 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2024-12-02 11:40:59,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states.
[2024-12-02 11:40:59,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 315.
[2024-12-02 11:40:59,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 230 states have (on average 1.5217391304347827) internal successors, (350), 311 states have internal predecessors, (350), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:40:59,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 354 transitions.
[2024-12-02 11:40:59,253 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 354 transitions. Word has length 57
[2024-12-02 11:40:59,253 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:40:59,253 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 354 transitions.
[2024-12-02 11:40:59,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:40:59,253 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 354 transitions.
[2024-12-02 11:40:59,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-12-02 11:40:59,254 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:40:59,254 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:40:59,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-12-02 11:40:59,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:59,455 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:40:59,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:40:59,455 INFO L85 PathProgramCache]: Analyzing trace with hash 2146741015, now seen corresponding path program 1 times
[2024-12-02 11:40:59,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:40:59,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [899877240]
[2024-12-02 11:40:59,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:40:59,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:40:59,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:40:59,457 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:40:59,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-12-02 11:41:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:41:00,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-02 11:41:00,253 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:41:00,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 11:41:00,270 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:41:00,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1
[2024-12-02 11:41:00,303 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2024-12-02 11:41:00,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20
[2024-12-02 11:41:00,330 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:41:00,330 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:41:00,330 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:41:00,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899877240]
[2024-12-02 11:41:00,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899877240] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:41:00,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:41:00,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:41:00,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457842352]
[2024-12-02 11:41:00,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:41:00,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 11:41:00,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:41:00,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 11:41:00,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:41:00,332 INFO L87 Difference]: Start difference. First operand 315 states and 354 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:00,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:41:00,702 INFO L93 Difference]: Finished difference Result 321 states and 362 transitions.
[2024-12-02 11:41:00,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 11:41:00,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60
[2024-12-02 11:41:00,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:41:00,704 INFO L225 Difference]: With dead ends: 321
[2024-12-02 11:41:00,704 INFO L226 Difference]: Without dead ends: 321
[2024-12-02 11:41:00,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 1 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 11:41:00,704 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 215 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 11:41:00,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 209 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 11:41:00,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states.
[2024-12-02 11:41:00,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 320.
[2024-12-02 11:41:00,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 236 states have (on average 1.5169491525423728) internal successors, (358), 316 states have internal predecessors, (358), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:41:00,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 362 transitions.
[2024-12-02 11:41:00,710 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 362 transitions. Word has length 60
[2024-12-02 11:41:00,710 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:41:00,710 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 362 transitions.
[2024-12-02 11:41:00,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:00,710 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 362 transitions.
[2024-12-02 11:41:00,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-12-02 11:41:00,711 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:41:00,711 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:41:00,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-12-02 11:41:00,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:00,912 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:41:00,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:41:00,912 INFO L85 PathProgramCache]: Analyzing trace with hash 2146741016, now seen corresponding path program 1 times
[2024-12-02 11:41:00,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:41:00,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2102856513]
[2024-12-02 11:41:00,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:41:00,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:00,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:41:00,914 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:41:00,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-12-02 11:41:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:41:01,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-12-02 11:41:01,692 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:41:01,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10
[2024-12-02 11:41:01,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 11:41:01,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2024-12-02 11:41:01,785 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:41:01,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1
[2024-12-02 11:41:02,017 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:41:02,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14
[2024-12-02 11:41:02,029 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 11:41:02,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-12-02 11:41:02,155 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:41:02,155 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:41:02,156 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:41:02,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102856513]
[2024-12-02 11:41:02,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102856513] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:41:02,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:41:02,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-12-02 11:41:02,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345303298]
[2024-12-02 11:41:02,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:41:02,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 11:41:02,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:41:02,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 11:41:02,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-12-02 11:41:02,156 INFO L87 Difference]: Start difference. First operand 320 states and 362 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:04,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:41:04,361 INFO L93 Difference]: Finished difference Result 331 states and 368 transitions.
[2024-12-02 11:41:04,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 11:41:04,362 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60
[2024-12-02 11:41:04,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:41:04,363 INFO L225 Difference]: With dead ends: 331
[2024-12-02 11:41:04,363 INFO L226 Difference]: Without dead ends: 331
[2024-12-02 11:41:04,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-12-02 11:41:04,364 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 281 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2024-12-02 11:41:04,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 581 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2024-12-02 11:41:04,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states.
[2024-12-02 11:41:04,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 320.
[2024-12-02 11:41:04,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 236 states have (on average 1.5127118644067796) internal successors, (357), 316 states have internal predecessors, (357), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:41:04,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 361 transitions.
[2024-12-02 11:41:04,371 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 361 transitions. Word has length 60
[2024-12-02 11:41:04,371 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:41:04,371 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 361 transitions.
[2024-12-02 11:41:04,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:04,372 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 361 transitions.
[2024-12-02 11:41:04,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-12-02 11:41:04,372 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:41:04,372 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:41:04,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-12-02 11:41:04,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:04,573 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:41:04,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:41:04,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1498569257, now seen corresponding path program 1 times
[2024-12-02 11:41:04,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:41:04,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [750613054]
[2024-12-02 11:41:04,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:41:04,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:04,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:41:04,576 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:41:04,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-12-02 11:41:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:41:05,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 11:41:05,263 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:41:05,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2024-12-02 11:41:05,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1
[2024-12-02 11:41:05,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11
[2024-12-02 11:41:05,339 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:41:05,340 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:41:05,340 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:41:05,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750613054]
[2024-12-02 11:41:05,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750613054] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:41:05,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:41:05,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 11:41:05,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333713136]
[2024-12-02 11:41:05,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:41:05,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 11:41:05,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:41:05,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 11:41:05,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 11:41:05,340 INFO L87 Difference]: Start difference. First operand 320 states and 361 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:06,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:41:06,148 INFO L93 Difference]: Finished difference Result 319 states and 359 transitions.
[2024-12-02 11:41:06,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 11:41:06,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63
[2024-12-02 11:41:06,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:41:06,150 INFO L225 Difference]: With dead ends: 319
[2024-12-02 11:41:06,150 INFO L226 Difference]: Without dead ends: 319
[2024-12-02 11:41:06,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:41:06,150 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 13 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-12-02 11:41:06,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 739 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-12-02 11:41:06,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states.
[2024-12-02 11:41:06,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319.
[2024-12-02 11:41:06,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 236 states have (on average 1.5042372881355932) internal successors, (355), 315 states have internal predecessors, (355), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:41:06,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 359 transitions.
[2024-12-02 11:41:06,155 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 359 transitions. Word has length 63
[2024-12-02 11:41:06,156 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:41:06,156 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 359 transitions.
[2024-12-02 11:41:06,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:06,156 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 359 transitions.
[2024-12-02 11:41:06,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-12-02 11:41:06,156 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:41:06,156 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:41:06,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-12-02 11:41:06,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:06,357 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:41:06,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:41:06,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1498569258, now seen corresponding path program 1 times
[2024-12-02 11:41:06,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:41:06,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936182017]
[2024-12-02 11:41:06,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:41:06,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:06,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:41:06,360 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:41:06,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-12-02 11:41:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:41:07,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-12-02 11:41:07,045 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:41:07,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-12-02 11:41:07,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2024-12-02 11:41:07,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1
[2024-12-02 11:41:07,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 9
[2024-12-02 11:41:07,186 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:41:07,186 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:41:07,186 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:41:07,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936182017]
[2024-12-02 11:41:07,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936182017] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:41:07,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:41:07,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 11:41:07,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482680441]
[2024-12-02 11:41:07,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:41:07,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 11:41:07,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:41:07,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 11:41:07,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 11:41:07,187 INFO L87 Difference]: Start difference. First operand 319 states and 359 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:08,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:41:08,102 INFO L93 Difference]: Finished difference Result 318 states and 357 transitions.
[2024-12-02 11:41:08,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 11:41:08,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63
[2024-12-02 11:41:08,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:41:08,103 INFO L225 Difference]: With dead ends: 318
[2024-12-02 11:41:08,103 INFO L226 Difference]: Without dead ends: 318
[2024-12-02 11:41:08,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:41:08,104 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 12 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-12-02 11:41:08,104 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 762 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-12-02 11:41:08,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states.
[2024-12-02 11:41:08,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318.
[2024-12-02 11:41:08,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 236 states have (on average 1.4957627118644068) internal successors, (353), 314 states have internal predecessors, (353), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:41:08,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 357 transitions.
[2024-12-02 11:41:08,109 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 357 transitions. Word has length 63
[2024-12-02 11:41:08,109 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:41:08,109 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 357 transitions.
[2024-12-02 11:41:08,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:08,109 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 357 transitions.
[2024-12-02 11:41:08,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-12-02 11:41:08,110 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:41:08,110 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:41:08,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2024-12-02 11:41:08,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:08,310 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:41:08,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:41:08,311 INFO L85 PathProgramCache]: Analyzing trace with hash -2045005824, now seen corresponding path program 1 times
[2024-12-02 11:41:08,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:41:08,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [238551358]
[2024-12-02 11:41:08,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:41:08,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:08,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:41:08,313 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:41:08,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-12-02 11:41:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:41:08,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 11:41:09,001 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:41:09,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11
[2024-12-02 11:41:09,091 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:41:09,091 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:41:09,091 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:41:09,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238551358]
[2024-12-02 11:41:09,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238551358] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:41:09,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:41:09,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 11:41:09,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807395924]
[2024-12-02 11:41:09,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:41:09,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 11:41:09,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:41:09,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 11:41:09,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 11:41:09,092 INFO L87 Difference]: Start difference. First operand 318 states and 357 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:10,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:41:10,101 INFO L93 Difference]: Finished difference Result 317 states and 355 transitions.
[2024-12-02 11:41:10,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 11:41:10,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68
[2024-12-02 11:41:10,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:41:10,102 INFO L225 Difference]: With dead ends: 317
[2024-12-02 11:41:10,102 INFO L226 Difference]: Without dead ends: 317
[2024-12-02 11:41:10,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:41:10,103 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 6 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-12-02 11:41:10,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 803 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-12-02 11:41:10,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states.
[2024-12-02 11:41:10,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317.
[2024-12-02 11:41:10,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 236 states have (on average 1.4872881355932204) internal successors, (351), 313 states have internal predecessors, (351), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:41:10,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 355 transitions.
[2024-12-02 11:41:10,107 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 355 transitions. Word has length 68
[2024-12-02 11:41:10,107 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:41:10,107 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 355 transitions.
[2024-12-02 11:41:10,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:10,108 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 355 transitions.
[2024-12-02 11:41:10,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-12-02 11:41:10,108 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:41:10,108 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:41:10,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-12-02 11:41:10,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:10,309 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:41:10,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:41:10,309 INFO L85 PathProgramCache]: Analyzing trace with hash -2045005823, now seen corresponding path program 1 times
[2024-12-02 11:41:10,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:41:10,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2035448710]
[2024-12-02 11:41:10,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:41:10,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:10,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:41:10,311 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:41:10,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-12-02 11:41:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:41:11,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-12-02 11:41:11,032 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:41:11,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-12-02 11:41:11,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1
[2024-12-02 11:41:11,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2024-12-02 11:41:11,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 9
[2024-12-02 11:41:11,260 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:41:11,261 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:41:11,261 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:41:11,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035448710]
[2024-12-02 11:41:11,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035448710] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:41:11,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:41:11,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 11:41:11,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455889167]
[2024-12-02 11:41:11,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:41:11,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 11:41:11,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:41:11,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 11:41:11,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:41:11,262 INFO L87 Difference]: Start difference. First operand 317 states and 355 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:12,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:41:12,301 INFO L93 Difference]: Finished difference Result 327 states and 366 transitions.
[2024-12-02 11:41:12,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 11:41:12,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68
[2024-12-02 11:41:12,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:41:12,302 INFO L225 Difference]: With dead ends: 327
[2024-12-02 11:41:12,302 INFO L226 Difference]: Without dead ends: 327
[2024-12-02 11:41:12,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-12-02 11:41:12,303 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 15 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-12-02 11:41:12,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 755 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-12-02 11:41:12,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states.
[2024-12-02 11:41:12,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 325.
[2024-12-02 11:41:12,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 244 states have (on average 1.4754098360655739) internal successors, (360), 321 states have internal predecessors, (360), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:41:12,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 364 transitions.
[2024-12-02 11:41:12,307 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 364 transitions. Word has length 68
[2024-12-02 11:41:12,307 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:41:12,307 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 364 transitions.
[2024-12-02 11:41:12,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:12,308 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 364 transitions.
[2024-12-02 11:41:12,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74
[2024-12-02 11:41:12,308 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:41:12,308 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:41:12,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2024-12-02 11:41:12,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:12,509 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:41:12,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:41:12,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1789982747, now seen corresponding path program 1 times
[2024-12-02 11:41:12,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:41:12,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [105655161]
[2024-12-02 11:41:12,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:41:12,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:12,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:41:12,511 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:41:12,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-12-02 11:41:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:41:13,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-12-02 11:41:13,263 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:41:13,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-12-02 11:41:13,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2024-12-02 11:41:13,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1
[2024-12-02 11:41:13,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 9
[2024-12-02 11:41:13,596 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:41:13,596 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:41:14,616 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:41:14,616 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:41:14,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105655161]
[2024-12-02 11:41:14,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105655161] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:41:14,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 11:41:14,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2024-12-02 11:41:14,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078598666]
[2024-12-02 11:41:14,617 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:41:14,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-12-02 11:41:14,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:41:14,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-12-02 11:41:14,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132
[2024-12-02 11:41:14,618 INFO L87 Difference]: Start difference. First operand 325 states and 364 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:19,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:41:19,542 INFO L93 Difference]: Finished difference Result 338 states and 377 transitions.
[2024-12-02 11:41:19,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-12-02 11:41:19,543 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73
[2024-12-02 11:41:19,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:41:19,544 INFO L225 Difference]: With dead ends: 338
[2024-12-02 11:41:19,544 INFO L226 Difference]: Without dead ends: 338
[2024-12-02 11:41:19,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272
[2024-12-02 11:41:19,544 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 29 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2024-12-02 11:41:19,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1255 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2024-12-02 11:41:19,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states.
[2024-12-02 11:41:19,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338.
[2024-12-02 11:41:19,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 258 states have (on average 1.445736434108527) internal successors, (373), 334 states have internal predecessors, (373), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:41:19,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 377 transitions.
[2024-12-02 11:41:19,548 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 377 transitions. Word has length 73
[2024-12-02 11:41:19,548 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:41:19,548 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 377 transitions.
[2024-12-02 11:41:19,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:19,548 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 377 transitions.
[2024-12-02 11:41:19,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85
[2024-12-02 11:41:19,549 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:41:19,549 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:41:19,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2024-12-02 11:41:19,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:19,749 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:41:19,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:41:19,750 INFO L85 PathProgramCache]: Analyzing trace with hash 122192718, now seen corresponding path program 1 times
[2024-12-02 11:41:19,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:41:19,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [871471448]
[2024-12-02 11:41:19,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:41:19,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:19,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:41:19,752 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:41:19,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-12-02 11:41:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:41:20,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-12-02 11:41:20,583 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:41:20,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-12-02 11:41:20,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1
[2024-12-02 11:41:20,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2024-12-02 11:41:20,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 9
[2024-12-02 11:41:21,072 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:41:21,072 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:41:21,808 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:41:21,808 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:41:21,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871471448]
[2024-12-02 11:41:21,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871471448] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:41:21,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 11:41:21,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17
[2024-12-02 11:41:21,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866791078]
[2024-12-02 11:41:21,808 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:41:21,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-12-02 11:41:21,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:41:21,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-12-02 11:41:21,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272
[2024-12-02 11:41:21,809 INFO L87 Difference]: Start difference. First operand 338 states and 377 transitions. Second operand has 17 states, 17 states have (on average 4.176470588235294) internal successors, (71), 17 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:25,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:41:25,715 INFO L93 Difference]: Finished difference Result 393 states and 432 transitions.
[2024-12-02 11:41:25,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2024-12-02 11:41:25,717 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.176470588235294) internal successors, (71), 17 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84
[2024-12-02 11:41:25,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:41:25,718 INFO L225 Difference]: With dead ends: 393
[2024-12-02 11:41:25,718 INFO L226 Difference]: Without dead ends: 393
[2024-12-02 11:41:25,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=220, Invalid=430, Unknown=0, NotChecked=0, Total=650
[2024-12-02 11:41:25,718 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 87 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time
[2024-12-02 11:41:25,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1829 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time]
[2024-12-02 11:41:25,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states.
[2024-12-02 11:41:25,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 388.
[2024-12-02 11:41:25,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 308 states have (on average 1.3896103896103895) internal successors, (428), 384 states have internal predecessors, (428), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:41:25,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 432 transitions.
[2024-12-02 11:41:25,722 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 432 transitions. Word has length 84
[2024-12-02 11:41:25,722 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:41:25,722 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 432 transitions.
[2024-12-02 11:41:25,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.176470588235294) internal successors, (71), 17 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:25,722 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 432 transitions.
[2024-12-02 11:41:25,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110
[2024-12-02 11:41:25,723 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:41:25,723 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:41:25,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0
[2024-12-02 11:41:25,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:25,923 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:41:25,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:41:25,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1035400936, now seen corresponding path program 2 times
[2024-12-02 11:41:25,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:41:25,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1918180515]
[2024-12-02 11:41:25,924 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 11:41:25,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:25,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:41:25,926 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:41:25,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2024-12-02 11:41:27,519 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 11:41:27,519 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 11:41:27,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 29 conjuncts are in the unsatisfiable core
[2024-12-02 11:41:27,602 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:41:27,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-12-02 11:41:27,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2024-12-02 11:41:27,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1
[2024-12-02 11:41:28,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 9
[2024-12-02 11:41:28,881 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 3 proven. 148 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:41:28,881 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:41:33,666 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 3 proven. 148 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 11:41:33,667 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:41:33,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918180515]
[2024-12-02 11:41:33,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918180515] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:41:33,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 11:41:33,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 29
[2024-12-02 11:41:33,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747624211]
[2024-12-02 11:41:33,667 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:41:33,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states
[2024-12-02 11:41:33,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:41:33,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants.
[2024-12-02 11:41:33,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=595, Unknown=0, NotChecked=0, Total=812
[2024-12-02 11:41:33,669 INFO L87 Difference]: Start difference. First operand 388 states and 432 transitions. Second operand has 29 states, 29 states have (on average 4.172413793103448) internal successors, (121), 29 states have internal predecessors, (121), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:56,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:41:56,741 INFO L93 Difference]: Finished difference Result 503 states and 544 transitions.
[2024-12-02 11:41:56,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states.
[2024-12-02 11:41:56,742 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.172413793103448) internal successors, (121), 29 states have internal predecessors, (121), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109
[2024-12-02 11:41:56,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:41:56,743 INFO L225 Difference]: With dead ends: 503
[2024-12-02 11:41:56,743 INFO L226 Difference]: Without dead ends: 503
[2024-12-02 11:41:56,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=760, Invalid=2102, Unknown=0, NotChecked=0, Total=2862
[2024-12-02 11:41:56,745 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 187 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 1798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time
[2024-12-02 11:41:56,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 3118 Invalid, 1798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time]
[2024-12-02 11:41:56,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states.
[2024-12-02 11:41:56,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 488.
[2024-12-02 11:41:56,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 408 states have (on average 1.3235294117647058) internal successors, (540), 484 states have internal predecessors, (540), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:41:56,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 544 transitions.
[2024-12-02 11:41:56,753 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 544 transitions. Word has length 109
[2024-12-02 11:41:56,753 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:41:56,754 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 544 transitions.
[2024-12-02 11:41:56,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.172413793103448) internal successors, (121), 29 states have internal predecessors, (121), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:41:56,754 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 544 transitions.
[2024-12-02 11:41:56,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2024-12-02 11:41:56,755 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:41:56,755 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:41:56,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0
[2024-12-02 11:41:56,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:56,955 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:41:56,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:41:56,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1828273832, now seen corresponding path program 3 times
[2024-12-02 11:41:56,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:41:56,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [812131175]
[2024-12-02 11:41:56,956 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 11:41:56,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:41:56,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:41:56,958 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:41:56,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2024-12-02 11:41:58,625 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-12-02 11:41:58,626 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 11:41:58,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-12-02 11:41:58,717 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:41:59,051 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:41:59,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14
[2024-12-02 11:41:59,072 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 11:41:59,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-12-02 11:42:00,760 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:42:00,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14
[2024-12-02 11:42:00,792 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 11:42:00,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-12-02 11:42:00,890 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:42:00,890 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:42:03,982 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 11:42:03,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 82
[2024-12-02 11:42:05,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 67
[2024-12-02 11:42:05,456 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 11:42:05,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 89
[2024-12-02 11:42:06,217 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:42:06,217 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:42:06,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812131175]
[2024-12-02 11:42:06,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812131175] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:42:06,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 11:42:06,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18
[2024-12-02 11:42:06,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256677186]
[2024-12-02 11:42:06,217 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:42:06,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-12-02 11:42:06,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:42:06,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-12-02 11:42:06,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342
[2024-12-02 11:42:06,219 INFO L87 Difference]: Start difference. First operand 488 states and 544 transitions. Second operand has 19 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:42:14,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:42:14,886 INFO L93 Difference]: Finished difference Result 702 states and 747 transitions.
[2024-12-02 11:42:14,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-12-02 11:42:14,887 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 119
[2024-12-02 11:42:14,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:42:14,888 INFO L225 Difference]: With dead ends: 702
[2024-12-02 11:42:14,888 INFO L226 Difference]: Without dead ends: 702
[2024-12-02 11:42:14,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 218 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650
[2024-12-02 11:42:14,888 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 1435 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time
[2024-12-02 11:42:14,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 1091 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time]
[2024-12-02 11:42:14,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states.
[2024-12-02 11:42:14,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 693.
[2024-12-02 11:42:14,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 616 states have (on average 1.1964285714285714) internal successors, (737), 689 states have internal predecessors, (737), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:42:14,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 741 transitions.
[2024-12-02 11:42:14,895 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 741 transitions. Word has length 119
[2024-12-02 11:42:14,896 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:42:14,896 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 741 transitions.
[2024-12-02 11:42:14,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:42:14,896 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 741 transitions.
[2024-12-02 11:42:14,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2024-12-02 11:42:14,896 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:42:14,896 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:42:14,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0
[2024-12-02 11:42:15,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:15,097 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:42:15,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:42:15,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1828277129, now seen corresponding path program 1 times
[2024-12-02 11:42:15,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:42:15,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [969482293]
[2024-12-02 11:42:15,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:42:15,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:15,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:42:15,100 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:42:15,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2024-12-02 11:42:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:42:15,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 11:42:15,905 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:42:16,028 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:42:16,028 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:42:16,028 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:42:16,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969482293]
[2024-12-02 11:42:16,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969482293] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:42:16,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:42:16,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 11:42:16,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305992074]
[2024-12-02 11:42:16,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:42:16,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:42:16,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:42:16,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:42:16,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:42:16,029 INFO L87 Difference]: Start difference. First operand 693 states and 741 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:16,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:42:16,506 INFO L93 Difference]: Finished difference Result 719 states and 770 transitions.
[2024-12-02 11:42:16,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:42:16,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119
[2024-12-02 11:42:16,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:42:16,508 INFO L225 Difference]: With dead ends: 719
[2024-12-02 11:42:16,508 INFO L226 Difference]: Without dead ends: 719
[2024-12-02 11:42:16,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 11:42:16,508 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 360 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 11:42:16,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 287 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 11:42:16,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states.
[2024-12-02 11:42:16,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 686.
[2024-12-02 11:42:16,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 616 states have (on average 1.1850649350649352) internal successors, (730), 682 states have internal predecessors, (730), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:42:16,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 734 transitions.
[2024-12-02 11:42:16,519 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 734 transitions. Word has length 119
[2024-12-02 11:42:16,519 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:42:16,519 INFO L471 AbstractCegarLoop]: Abstraction has 686 states and 734 transitions.
[2024-12-02 11:42:16,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:16,519 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 734 transitions.
[2024-12-02 11:42:16,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2024-12-02 11:42:16,520 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:42:16,520 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:42:16,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0
[2024-12-02 11:42:16,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:16,721 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:42:16,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:42:16,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1828277130, now seen corresponding path program 1 times
[2024-12-02 11:42:16,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:42:16,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1799064201]
[2024-12-02 11:42:16,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:42:16,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:16,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:42:16,724 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:42:16,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2024-12-02 11:42:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:42:17,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-12-02 11:42:17,699 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:42:17,969 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:42:17,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14
[2024-12-02 11:42:17,981 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 11:42:17,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-12-02 11:42:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:42:19,557 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:42:21,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52
[2024-12-02 11:42:21,947 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size
[2024-12-02 11:42:21,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 67
[2024-12-02 11:42:22,241 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:42:22,241 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:42:22,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799064201]
[2024-12-02 11:42:22,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799064201] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:42:22,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 11:42:22,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 19
[2024-12-02 11:42:22,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182879847]
[2024-12-02 11:42:22,242 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:42:22,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-12-02 11:42:22,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:42:22,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-12-02 11:42:22,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380
[2024-12-02 11:42:22,243 INFO L87 Difference]: Start difference. First operand 686 states and 734 transitions. Second operand has 20 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:42:25,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:42:25,633 INFO L93 Difference]: Finished difference Result 695 states and 741 transitions.
[2024-12-02 11:42:25,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 11:42:25,635 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 119
[2024-12-02 11:42:25,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:42:25,636 INFO L225 Difference]: With dead ends: 695
[2024-12-02 11:42:25,636 INFO L226 Difference]: Without dead ends: 695
[2024-12-02 11:42:25,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 217 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552
[2024-12-02 11:42:25,636 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 1715 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-12-02 11:42:25,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1716 Valid, 1004 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-12-02 11:42:25,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states.
[2024-12-02 11:42:25,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 682.
[2024-12-02 11:42:25,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 616 states have (on average 1.1785714285714286) internal successors, (726), 678 states have internal predecessors, (726), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:42:25,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 730 transitions.
[2024-12-02 11:42:25,642 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 730 transitions. Word has length 119
[2024-12-02 11:42:25,643 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:42:25,643 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 730 transitions.
[2024-12-02 11:42:25,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:42:25,643 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 730 transitions.
[2024-12-02 11:42:25,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123
[2024-12-02 11:42:25,643 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:42:25,643 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:42:25,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0
[2024-12-02 11:42:25,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:25,844 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:42:25,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:42:25,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1625440627, now seen corresponding path program 1 times
[2024-12-02 11:42:25,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:42:25,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131005814]
[2024-12-02 11:42:25,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:42:25,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:25,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:42:25,846 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:42:25,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2024-12-02 11:42:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:42:26,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-12-02 11:42:26,794 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:42:26,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2024-12-02 11:42:26,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10
[2024-12-02 11:42:26,854 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:42:26,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1
[2024-12-02 11:42:27,081 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:42:27,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14
[2024-12-02 11:42:27,103 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 11:42:27,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-12-02 11:42:28,752 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:42:28,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14
[2024-12-02 11:42:28,764 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 11:42:28,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2024-12-02 11:42:28,924 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:42:28,924 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:42:31,988 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 11:42:31,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 82
[2024-12-02 11:42:33,269 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 11:42:33,295 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:42:33,295 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:42:33,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131005814]
[2024-12-02 11:42:33,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131005814] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:42:33,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 11:42:33,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 16
[2024-12-02 11:42:33,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306670610]
[2024-12-02 11:42:33,296 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:42:33,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-12-02 11:42:33,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:42:33,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-12-02 11:42:33,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272
[2024-12-02 11:42:33,296 INFO L87 Difference]: Start difference. First operand 682 states and 730 transitions. Second operand has 17 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:42:39,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:42:39,314 INFO L93 Difference]: Finished difference Result 687 states and 733 transitions.
[2024-12-02 11:42:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 11:42:39,314 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 122
[2024-12-02 11:42:39,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:42:39,316 INFO L225 Difference]: With dead ends: 687
[2024-12-02 11:42:39,316 INFO L226 Difference]: Without dead ends: 687
[2024-12-02 11:42:39,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 226 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=105, Invalid=315, Unknown=0, NotChecked=0, Total=420
[2024-12-02 11:42:39,318 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 751 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2024-12-02 11:42:39,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 1048 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 982 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time]
[2024-12-02 11:42:39,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states.
[2024-12-02 11:42:39,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 681.
[2024-12-02 11:42:39,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 616 states have (on average 1.1737012987012987) internal successors, (723), 677 states have internal predecessors, (723), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:42:39,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 727 transitions.
[2024-12-02 11:42:39,324 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 727 transitions. Word has length 122
[2024-12-02 11:42:39,324 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:42:39,324 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 727 transitions.
[2024-12-02 11:42:39,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:42:39,324 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 727 transitions.
[2024-12-02 11:42:39,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2024-12-02 11:42:39,325 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:42:39,325 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:42:39,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0
[2024-12-02 11:42:39,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:39,525 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:42:39,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:42:39,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1899694931, now seen corresponding path program 1 times
[2024-12-02 11:42:39,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:42:39,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1229264519]
[2024-12-02 11:42:39,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:42:39,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:39,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:42:39,528 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:42:39,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2024-12-02 11:42:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:42:40,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 11:42:40,423 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:42:40,571 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked.
[2024-12-02 11:42:40,571 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:42:40,571 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:42:40,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229264519]
[2024-12-02 11:42:40,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229264519] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:42:40,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:42:40,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 11:42:40,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928304191]
[2024-12-02 11:42:40,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:42:40,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 11:42:40,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:42:40,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 11:42:40,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:42:40,572 INFO L87 Difference]: Start difference. First operand 681 states and 727 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:41,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:42:41,262 INFO L93 Difference]: Finished difference Result 728 states and 785 transitions.
[2024-12-02 11:42:41,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 11:42:41,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123
[2024-12-02 11:42:41,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:42:41,264 INFO L225 Difference]: With dead ends: 728
[2024-12-02 11:42:41,264 INFO L226 Difference]: Without dead ends: 728
[2024-12-02 11:42:41,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-12-02 11:42:41,265 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 418 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-12-02 11:42:41,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 545 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-12-02 11:42:41,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states.
[2024-12-02 11:42:41,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 686.
[2024-12-02 11:42:41,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 621 states have (on average 1.173913043478261) internal successors, (729), 682 states have internal predecessors, (729), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:42:41,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 733 transitions.
[2024-12-02 11:42:41,274 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 733 transitions. Word has length 123
[2024-12-02 11:42:41,274 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:42:41,274 INFO L471 AbstractCegarLoop]: Abstraction has 686 states and 733 transitions.
[2024-12-02 11:42:41,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:41,274 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 733 transitions.
[2024-12-02 11:42:41,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-12-02 11:42:41,275 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:42:41,275 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:42:41,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0
[2024-12-02 11:42:41,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:41,475 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:42:41,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:42:41,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1195197885, now seen corresponding path program 1 times
[2024-12-02 11:42:41,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:42:41,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1554038398]
[2024-12-02 11:42:41,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:42:41,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:41,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:42:41,478 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:42:41,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2024-12-02 11:42:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:42:42,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-12-02 11:42:42,404 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:42:42,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10
[2024-12-02 11:42:42,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10
[2024-12-02 11:42:42,648 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:42:42,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 14
[2024-12-02 11:42:42,672 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 11:42:42,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 14
[2024-12-02 11:42:44,398 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 11:42:44,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7
[2024-12-02 11:42:44,404 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 11:42:44,408 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 11:42:44,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 10
[2024-12-02 11:42:44,461 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:42:44,461 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:42:46,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15
[2024-12-02 11:42:46,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18
[2024-12-02 11:42:46,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15
[2024-12-02 11:42:46,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18
[2024-12-02 11:42:46,085 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:42:46,085 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:42:46,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554038398]
[2024-12-02 11:42:46,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554038398] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:42:46,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 11:42:46,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 19
[2024-12-02 11:42:46,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448628039]
[2024-12-02 11:42:46,085 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:42:46,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-12-02 11:42:46,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:42:46,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-12-02 11:42:46,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342
[2024-12-02 11:42:46,087 INFO L87 Difference]: Start difference. First operand 686 states and 733 transitions. Second operand has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 18 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:42:47,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:42:47,603 INFO L93 Difference]: Finished difference Result 808 states and 880 transitions.
[2024-12-02 11:42:47,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-12-02 11:42:47,604 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 18 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 125
[2024-12-02 11:42:47,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:42:47,605 INFO L225 Difference]: With dead ends: 808
[2024-12-02 11:42:47,605 INFO L226 Difference]: Without dead ends: 808
[2024-12-02 11:42:47,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 230 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552
[2024-12-02 11:42:47,606 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 950 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-12-02 11:42:47,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 2290 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-12-02 11:42:47,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states.
[2024-12-02 11:42:47,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 689.
[2024-12-02 11:42:47,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 624 states have (on average 1.1730769230769231) internal successors, (732), 685 states have internal predecessors, (732), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:42:47,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 736 transitions.
[2024-12-02 11:42:47,615 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 736 transitions. Word has length 125
[2024-12-02 11:42:47,616 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:42:47,616 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 736 transitions.
[2024-12-02 11:42:47,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 18 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-02 11:42:47,616 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 736 transitions.
[2024-12-02 11:42:47,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127
[2024-12-02 11:42:47,616 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:42:47,616 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:42:47,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0
[2024-12-02 11:42:47,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:47,817 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr47REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:42:47,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:42:47,817 INFO L85 PathProgramCache]: Analyzing trace with hash -972207023, now seen corresponding path program 1 times
[2024-12-02 11:42:47,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:42:47,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1713214181]
[2024-12-02 11:42:47,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:42:47,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:47,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:42:47,820 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:42:47,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process
[2024-12-02 11:42:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:42:48,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-12-02 11:42:48,781 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:42:49,056 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked.
[2024-12-02 11:42:49,056 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:42:49,056 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:42:49,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713214181]
[2024-12-02 11:42:49,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713214181] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:42:49,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:42:49,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-12-02 11:42:49,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960044301]
[2024-12-02 11:42:49,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:42:49,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 11:42:49,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:42:49,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 11:42:49,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2024-12-02 11:42:49,057 INFO L87 Difference]: Start difference. First operand 689 states and 736 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:49,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:42:49,589 INFO L93 Difference]: Finished difference Result 726 states and 781 transitions.
[2024-12-02 11:42:49,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 11:42:49,590 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126
[2024-12-02 11:42:49,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:42:49,593 INFO L225 Difference]: With dead ends: 726
[2024-12-02 11:42:49,593 INFO L226 Difference]: Without dead ends: 726
[2024-12-02 11:42:49,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210
[2024-12-02 11:42:49,594 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 338 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 11:42:49,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 1336 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 11:42:49,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states.
[2024-12-02 11:42:49,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 695.
[2024-12-02 11:42:49,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 630 states have (on average 1.173015873015873) internal successors, (739), 691 states have internal predecessors, (739), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:42:49,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 743 transitions.
[2024-12-02 11:42:49,601 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 743 transitions. Word has length 126
[2024-12-02 11:42:49,601 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:42:49,601 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 743 transitions.
[2024-12-02 11:42:49,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:49,601 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 743 transitions.
[2024-12-02 11:42:49,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2024-12-02 11:42:49,602 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:42:49,602 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:42:49,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0
[2024-12-02 11:42:49,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:49,803 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:42:49,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:42:49,803 INFO L85 PathProgramCache]: Analyzing trace with hash -2032766766, now seen corresponding path program 1 times
[2024-12-02 11:42:49,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:42:49,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1479673979]
[2024-12-02 11:42:49,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:42:49,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:49,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:42:49,805 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:42:49,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process
[2024-12-02 11:42:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:42:50,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-02 11:42:50,654 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:42:50,683 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked.
[2024-12-02 11:42:50,684 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:42:50,684 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:42:50,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479673979]
[2024-12-02 11:42:50,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479673979] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:42:50,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:42:50,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 11:42:50,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377789413]
[2024-12-02 11:42:50,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:42:50,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:42:50,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:42:50,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:42:50,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:42:50,686 INFO L87 Difference]: Start difference. First operand 695 states and 743 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:50,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:42:50,731 INFO L93 Difference]: Finished difference Result 697 states and 745 transitions.
[2024-12-02 11:42:50,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:42:50,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 129
[2024-12-02 11:42:50,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:42:50,733 INFO L225 Difference]: With dead ends: 697
[2024-12-02 11:42:50,734 INFO L226 Difference]: Without dead ends: 697
[2024-12-02 11:42:50,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:42:50,734 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 11:42:50,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 709 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 11:42:50,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states.
[2024-12-02 11:42:50,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697.
[2024-12-02 11:42:50,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 632 states have (on average 1.1724683544303798) internal successors, (741), 693 states have internal predecessors, (741), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:42:50,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 745 transitions.
[2024-12-02 11:42:50,742 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 745 transitions. Word has length 129
[2024-12-02 11:42:50,743 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:42:50,743 INFO L471 AbstractCegarLoop]: Abstraction has 697 states and 745 transitions.
[2024-12-02 11:42:50,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:50,743 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 745 transitions.
[2024-12-02 11:42:50,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-12-02 11:42:50,743 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:42:50,743 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:42:50,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0
[2024-12-02 11:42:50,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:50,944 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr57REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:42:50,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:42:50,944 INFO L85 PathProgramCache]: Analyzing trace with hash 722032721, now seen corresponding path program 1 times
[2024-12-02 11:42:50,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:42:50,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1143343551]
[2024-12-02 11:42:50,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:42:50,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:50,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:42:50,947 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:42:50,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process
[2024-12-02 11:42:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:42:51,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 11:42:51,816 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:42:51,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2024-12-02 11:42:51,826 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked.
[2024-12-02 11:42:51,826 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:42:51,826 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:42:51,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143343551]
[2024-12-02 11:42:51,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143343551] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:42:51,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:42:51,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:42:51,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171847375]
[2024-12-02 11:42:51,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:42:51,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 11:42:51,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:42:51,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 11:42:51,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:42:51,827 INFO L87 Difference]: Start difference. First operand 697 states and 745 transitions. Second operand has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:52,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:42:52,082 INFO L93 Difference]: Finished difference Result 697 states and 745 transitions.
[2024-12-02 11:42:52,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 11:42:52,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131
[2024-12-02 11:42:52,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:42:52,084 INFO L225 Difference]: With dead ends: 697
[2024-12-02 11:42:52,084 INFO L226 Difference]: Without dead ends: 697
[2024-12-02 11:42:52,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 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 11:42:52,084 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 1 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 11:42:52,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 401 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 11:42:52,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states.
[2024-12-02 11:42:52,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 696.
[2024-12-02 11:42:52,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 632 states have (on average 1.1708860759493671) internal successors, (740), 692 states have internal predecessors, (740), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:42:52,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 744 transitions.
[2024-12-02 11:42:52,090 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 744 transitions. Word has length 131
[2024-12-02 11:42:52,090 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:42:52,090 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 744 transitions.
[2024-12-02 11:42:52,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:52,090 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 744 transitions.
[2024-12-02 11:42:52,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-12-02 11:42:52,091 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:42:52,091 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:42:52,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0
[2024-12-02 11:42:52,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:52,291 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:42:52,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:42:52,292 INFO L85 PathProgramCache]: Analyzing trace with hash 722032722, now seen corresponding path program 1 times
[2024-12-02 11:42:52,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:42:52,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [591958504]
[2024-12-02 11:42:52,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:42:52,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:52,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:42:52,294 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:42:52,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process
[2024-12-02 11:42:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:42:53,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-12-02 11:42:53,260 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:42:53,420 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:42:53,421 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:42:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2024-12-02 11:42:53,954 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:42:53,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591958504]
[2024-12-02 11:42:53,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591958504] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:42:53,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 11:42:53,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10
[2024-12-02 11:42:53,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413349110]
[2024-12-02 11:42:53,955 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:42:53,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-02 11:42:53,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:42:53,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-02 11:42:53,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-12-02 11:42:53,956 INFO L87 Difference]: Start difference. First operand 696 states and 744 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:54,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:42:54,309 INFO L93 Difference]: Finished difference Result 782 states and 846 transitions.
[2024-12-02 11:42:54,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 11:42:54,310 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131
[2024-12-02 11:42:54,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:42:54,311 INFO L225 Difference]: With dead ends: 782
[2024-12-02 11:42:54,311 INFO L226 Difference]: Without dead ends: 782
[2024-12-02 11:42:54,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110
[2024-12-02 11:42:54,311 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 212 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 11:42:54,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 1717 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 11:42:54,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states.
[2024-12-02 11:42:54,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 697.
[2024-12-02 11:42:54,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 633 states have (on average 1.1706161137440758) internal successors, (741), 693 states have internal predecessors, (741), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:42:54,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 745 transitions.
[2024-12-02 11:42:54,317 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 745 transitions. Word has length 131
[2024-12-02 11:42:54,317 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:42:54,317 INFO L471 AbstractCegarLoop]: Abstraction has 697 states and 745 transitions.
[2024-12-02 11:42:54,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:54,317 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 745 transitions.
[2024-12-02 11:42:54,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2024-12-02 11:42:54,317 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:42:54,317 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:42:54,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0
[2024-12-02 11:42:54,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:54,518 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:42:54,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:42:54,518 INFO L85 PathProgramCache]: Analyzing trace with hash 387010574, now seen corresponding path program 1 times
[2024-12-02 11:42:54,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:42:54,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [635134985]
[2024-12-02 11:42:54,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:42:54,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:54,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:42:54,520 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:42:54,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process
[2024-12-02 11:42:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:42:55,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 11:42:55,553 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:42:55,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-12-02 11:42:55,573 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked.
[2024-12-02 11:42:55,574 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:42:55,574 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:42:55,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635134985]
[2024-12-02 11:42:55,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635134985] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:42:55,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:42:55,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:42:55,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341633749]
[2024-12-02 11:42:55,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:42:55,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 11:42:55,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:42:55,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 11:42:55,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:42:55,575 INFO L87 Difference]: Start difference. First operand 697 states and 745 transitions. Second operand has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:56,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:42:56,098 INFO L93 Difference]: Finished difference Result 696 states and 744 transitions.
[2024-12-02 11:42:56,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 11:42:56,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132
[2024-12-02 11:42:56,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:42:56,100 INFO L225 Difference]: With dead ends: 696
[2024-12-02 11:42:56,100 INFO L226 Difference]: Without dead ends: 696
[2024-12-02 11:42:56,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 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 11:42:56,101 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 0 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 11:42:56,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 405 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 11:42:56,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states.
[2024-12-02 11:42:56,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 696.
[2024-12-02 11:42:56,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 633 states have (on average 1.169036334913112) internal successors, (740), 692 states have internal predecessors, (740), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:42:56,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 744 transitions.
[2024-12-02 11:42:56,108 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 744 transitions. Word has length 132
[2024-12-02 11:42:56,108 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:42:56,108 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 744 transitions.
[2024-12-02 11:42:56,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:56,108 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 744 transitions.
[2024-12-02 11:42:56,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2024-12-02 11:42:56,108 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:42:56,108 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:42:56,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0
[2024-12-02 11:42:56,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:56,309 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:42:56,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:42:56,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1738297115, now seen corresponding path program 1 times
[2024-12-02 11:42:56,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:42:56,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1755537119]
[2024-12-02 11:42:56,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:42:56,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:56,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:42:56,311 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:42:56,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process
[2024-12-02 11:42:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:42:57,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-02 11:42:57,198 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:42:57,226 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked.
[2024-12-02 11:42:57,226 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:42:57,226 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:42:57,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755537119]
[2024-12-02 11:42:57,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755537119] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:42:57,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:42:57,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 11:42:57,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885385566]
[2024-12-02 11:42:57,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:42:57,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:42:57,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:42:57,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:42:57,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:42:57,227 INFO L87 Difference]: Start difference. First operand 696 states and 744 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:57,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:42:57,273 INFO L93 Difference]: Finished difference Result 700 states and 749 transitions.
[2024-12-02 11:42:57,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:42:57,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135
[2024-12-02 11:42:57,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:42:57,275 INFO L225 Difference]: With dead ends: 700
[2024-12-02 11:42:57,275 INFO L226 Difference]: Without dead ends: 700
[2024-12-02 11:42:57,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:42:57,276 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 2 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 11:42:57,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 698 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 11:42:57,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states.
[2024-12-02 11:42:57,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 698.
[2024-12-02 11:42:57,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 635 states have (on average 1.168503937007874) internal successors, (742), 694 states have internal predecessors, (742), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:42:57,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 746 transitions.
[2024-12-02 11:42:57,282 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 746 transitions. Word has length 135
[2024-12-02 11:42:57,282 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:42:57,282 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 746 transitions.
[2024-12-02 11:42:57,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:57,282 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 746 transitions.
[2024-12-02 11:42:57,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137
[2024-12-02 11:42:57,282 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:42:57,283 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:42:57,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0
[2024-12-02 11:42:57,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:57,483 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:42:57,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:42:57,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1893951661, now seen corresponding path program 1 times
[2024-12-02 11:42:57,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:42:57,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1348396710]
[2024-12-02 11:42:57,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:42:57,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:57,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:42:57,485 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:42:57,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process
[2024-12-02 11:42:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:42:58,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-02 11:42:58,388 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:42:58,468 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked.
[2024-12-02 11:42:58,468 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:42:58,468 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 11:42:58,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348396710]
[2024-12-02 11:42:58,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348396710] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:42:58,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:42:58,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-12-02 11:42:58,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810893668]
[2024-12-02 11:42:58,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:42:58,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 11:42:58,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 11:42:58,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 11:42:58,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-12-02 11:42:58,469 INFO L87 Difference]: Start difference. First operand 698 states and 746 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:58,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:42:58,731 INFO L93 Difference]: Finished difference Result 713 states and 764 transitions.
[2024-12-02 11:42:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 11:42:58,732 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 136
[2024-12-02 11:42:58,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 11:42:58,734 INFO L225 Difference]: With dead ends: 713
[2024-12-02 11:42:58,734 INFO L226 Difference]: Without dead ends: 713
[2024-12-02 11:42:58,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-12-02 11:42:58,734 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 14 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 11:42:58,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1318 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 11:42:58,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states.
[2024-12-02 11:42:58,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 707.
[2024-12-02 11:42:58,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 644 states have (on average 1.1677018633540373) internal successors, (752), 703 states have internal predecessors, (752), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 11:42:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 756 transitions.
[2024-12-02 11:42:58,739 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 756 transitions. Word has length 136
[2024-12-02 11:42:58,739 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 11:42:58,739 INFO L471 AbstractCegarLoop]: Abstraction has 707 states and 756 transitions.
[2024-12-02 11:42:58,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:42:58,739 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 756 transitions.
[2024-12-02 11:42:58,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2024-12-02 11:42:58,740 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 11:42:58,740 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:42:58,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0
[2024-12-02 11:42:58,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:58,940 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 91 more)] ===
[2024-12-02 11:42:58,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:42:58,941 INFO L85 PathProgramCache]: Analyzing trace with hash -240216484, now seen corresponding path program 1 times
[2024-12-02 11:42:58,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 11:42:58,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857847193]
[2024-12-02 11:42:58,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:42:58,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:42:58,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:42:58,943 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:42:58,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9eb43a-f9ec-4eb4-98a7-31c5177969e2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process