./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-reverse.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
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_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/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_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/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 32bit --witnessprinter.graph.data.programhash 52fc70d7844651686a4c27e057f507f0498e7d5f7c17f07a035699d1630f6ea2
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 12:20:51,854 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 12:20:51,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-12-02 12:20:51,916 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 12:20:51,917 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 12:20:51,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 12:20:51,938 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 12:20:51,938 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 12:20:51,939 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 12:20:51,939 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 12:20:51,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 12:20:51,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 12:20:51,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 12:20:51,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 12:20:51,940 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 12:20:51,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 12:20:51,940 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 12:20:51,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 12:20:51,940 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 12:20:51,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 12:20:51,941 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-12-02 12:20:51,941 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-12-02 12:20:51,941 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-12-02 12:20:51,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 12:20:51,941 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 12:20:51,941 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 12:20:51,941 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 12:20:51,941 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 12:20:51,941 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 12:20:51,942 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 12:20:51,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 12:20:51,942 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:20:51,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 12:20:51,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:20:51,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 12:20:51,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 12:20:51,942 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:20:51,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 12:20:51,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:20:51,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 12:20:51,943 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 12:20:51,943 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 12:20:51,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 12:20:51,943 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 12:20:51,943 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 12:20:51,943 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 12:20:51,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 12:20:51,943 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_1be3212c-ac08-4cf0-867a-b99818a35d53/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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52fc70d7844651686a4c27e057f507f0498e7d5f7c17f07a035699d1630f6ea2
[2024-12-02 12:20:52,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 12:20:52,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 12:20:52,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 12:20:52,184 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 12:20:52,184 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 12:20:52,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/forester-heap/dll-reverse.i
[2024-12-02 12:20:54,777 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/data/81b0d4b0c/7b5c5e2d58344ece93902aaf93699e45/FLAGbbee93fd3
[2024-12-02 12:20:55,033 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 12:20:55,034 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/sv-benchmarks/c/forester-heap/dll-reverse.i
[2024-12-02 12:20:55,047 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/data/81b0d4b0c/7b5c5e2d58344ece93902aaf93699e45/FLAGbbee93fd3
[2024-12-02 12:20:55,367 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/data/81b0d4b0c/7b5c5e2d58344ece93902aaf93699e45
[2024-12-02 12:20:55,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 12:20:55,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 12:20:55,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 12:20:55,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 12:20:55,374 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 12:20:55,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:20:55" (1/1) ...
[2024-12-02 12:20:55,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3538c1df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:55, skipping insertion in model container
[2024-12-02 12:20:55,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:20:55" (1/1) ...
[2024-12-02 12:20:55,399 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 12:20:55,637 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:20:55,647 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 12:20:55,691 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:20:55,720 INFO L204 MainTranslator]: Completed translation
[2024-12-02 12:20:55,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:55 WrapperNode
[2024-12-02 12:20:55,721 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 12:20:55,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 12:20:55,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 12:20:55,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 12:20:55,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:55" (1/1) ...
[2024-12-02 12:20:55,743 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:55" (1/1) ...
[2024-12-02 12:20:55,765 INFO L138 Inliner]: procedures = 119, calls = 44, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 138
[2024-12-02 12:20:55,766 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 12:20:55,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 12:20:55,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 12:20:55,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 12:20:55,777 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:55" (1/1) ...
[2024-12-02 12:20:55,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:55" (1/1) ...
[2024-12-02 12:20:55,782 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:55" (1/1) ...
[2024-12-02 12:20:55,803 INFO L175 MemorySlicer]: Split 33 memory accesses to 2 slices as follows [2, 31]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 15 writes are split as follows [0, 15].
[2024-12-02 12:20:55,803 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:55" (1/1) ...
[2024-12-02 12:20:55,804 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:55" (1/1) ...
[2024-12-02 12:20:55,814 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:55" (1/1) ...
[2024-12-02 12:20:55,815 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:55" (1/1) ...
[2024-12-02 12:20:55,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:55" (1/1) ...
[2024-12-02 12:20:55,822 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:55" (1/1) ...
[2024-12-02 12:20:55,823 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:55" (1/1) ...
[2024-12-02 12:20:55,826 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 12:20:55,827 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 12:20:55,828 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 12:20:55,828 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 12:20:55,829 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:55" (1/1) ...
[2024-12-02 12:20:55,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:20:55,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:20:55,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 12:20:55,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 12:20:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2024-12-02 12:20:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2024-12-02 12:20:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-02 12:20:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-02 12:20:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-02 12:20:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-02 12:20:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-12-02 12:20:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 12:20:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-12-02 12:20:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-12-02 12:20:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-12-02 12:20:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-12-02 12:20:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 12:20:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 12:20:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-12-02 12:20:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 12:20:55,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 12:20:56,019 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 12:20:56,021 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 12:20:56,473 INFO L? ?]: Removed 150 outVars from TransFormulas that were not future-live.
[2024-12-02 12:20:56,473 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 12:20:56,487 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 12:20:56,487 INFO L312 CfgBuilder]: Removed 8 assume(true) statements.
[2024-12-02 12:20:56,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:20:56 BoogieIcfgContainer
[2024-12-02 12:20:56,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 12:20:56,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 12:20:56,490 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 12:20:56,494 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 12:20:56,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:20:55" (1/3) ...
[2024-12-02 12:20:56,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9bd0d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:20:56, skipping insertion in model container
[2024-12-02 12:20:56,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:55" (2/3) ...
[2024-12-02 12:20:56,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9bd0d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:20:56, skipping insertion in model container
[2024-12-02 12:20:56,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:20:56" (3/3) ...
[2024-12-02 12:20:56,496 INFO L128 eAbstractionObserver]: Analyzing ICFG dll-reverse.i
[2024-12-02 12:20:56,508 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 12:20:56,510 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG dll-reverse.i that has 2 procedures, 155 locations, 1 initial locations, 8 loop locations, and 67 error locations.
[2024-12-02 12:20:56,557 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 12:20:56,568 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;@65b5597d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 12:20:56,568 INFO L334 AbstractCegarLoop]: Starting to check reachability of 67 error locations.
[2024-12-02 12:20:56,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 83 states have (on average 2.0963855421686746) internal successors, (174), 150 states have internal predecessors, (174), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 12:20:56,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-12-02 12:20:56,576 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:20:56,577 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-12-02 12:20:56,577 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:20:56,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:20:56,582 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times
[2024-12-02 12:20:56,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:20:56,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129468228]
[2024-12-02 12:20:56,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:20:56,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:20:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:20:56,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:20:56,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:20:56,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129468228]
[2024-12-02 12:20:56,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129468228] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:20:56,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:20:56,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 12:20:56,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646044609]
[2024-12-02 12:20:56,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:20:56,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 12:20:56,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:20:56,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 12:20:56,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 12:20:56,790 INFO L87 Difference]: Start difference. First operand has 155 states, 83 states have (on average 2.0963855421686746) internal successors, (174), 150 states have internal predecessors, (174), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 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 12:20:56,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:20:56,979 INFO L93 Difference]: Finished difference Result 147 states and 157 transitions.
[2024-12-02 12:20:56,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 12:20:56,981 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 12:20:56,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:20:56,988 INFO L225 Difference]: With dead ends: 147
[2024-12-02 12:20:56,988 INFO L226 Difference]: Without dead ends: 145
[2024-12-02 12:20:56,990 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 12:20:56,993 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 81 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 12:20:56,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 147 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 12:20:57,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states.
[2024-12-02 12:20:57,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145.
[2024-12-02 12:20:57,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 78 states have (on average 1.9487179487179487) internal successors, (152), 143 states have internal predecessors, (152), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:20:57,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 155 transitions.
[2024-12-02 12:20:57,035 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 155 transitions. Word has length 3
[2024-12-02 12:20:57,036 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:20:57,036 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 155 transitions.
[2024-12-02 12:20:57,036 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 12:20:57,036 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 155 transitions.
[2024-12-02 12:20:57,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-12-02 12:20:57,036 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:20:57,036 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-12-02 12:20:57,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 12:20:57,037 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:20:57,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:20:57,038 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times
[2024-12-02 12:20:57,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:20:57,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450960392]
[2024-12-02 12:20:57,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:20:57,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:20:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:20:57,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:20:57,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:20:57,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450960392]
[2024-12-02 12:20:57,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450960392] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:20:57,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:20:57,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 12:20:57,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403826665]
[2024-12-02 12:20:57,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:20:57,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 12:20:57,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:20:57,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 12:20:57,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 12:20:57,128 INFO L87 Difference]: Start difference. First operand 145 states and 155 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 12:20:57,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:20:57,267 INFO L93 Difference]: Finished difference Result 142 states and 152 transitions.
[2024-12-02 12:20:57,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 12:20:57,268 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 12:20:57,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:20:57,269 INFO L225 Difference]: With dead ends: 142
[2024-12-02 12:20:57,269 INFO L226 Difference]: Without dead ends: 142
[2024-12-02 12:20:57,269 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 12:20:57,270 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 81 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 12:20:57,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 143 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 12:20:57,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states.
[2024-12-02 12:20:57,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142.
[2024-12-02 12:20:57,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 78 states have (on average 1.9102564102564104) internal successors, (149), 140 states have internal predecessors, (149), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:20:57,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 152 transitions.
[2024-12-02 12:20:57,279 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 152 transitions. Word has length 3
[2024-12-02 12:20:57,279 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:20:57,280 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 152 transitions.
[2024-12-02 12:20:57,280 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 12:20:57,280 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 152 transitions.
[2024-12-02 12:20:57,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-12-02 12:20:57,280 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:20:57,280 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:20:57,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 12:20:57,281 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:20:57,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:20:57,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1570703282, now seen corresponding path program 1 times
[2024-12-02 12:20:57,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:20:57,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720497997]
[2024-12-02 12:20:57,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:20:57,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:20:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:20:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:20:57,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:20:57,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720497997]
[2024-12-02 12:20:57,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720497997] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:20:57,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:20:57,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 12:20:57,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643606687]
[2024-12-02 12:20:57,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:20:57,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 12:20:57,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:20:57,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 12:20:57,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 12:20:57,447 INFO L87 Difference]: Start difference. First operand 142 states and 152 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 12:20:57,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:20:57,669 INFO L93 Difference]: Finished difference Result 129 states and 143 transitions.
[2024-12-02 12:20:57,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:20:57,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10
[2024-12-02 12:20:57,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:20:57,670 INFO L225 Difference]: With dead ends: 129
[2024-12-02 12:20:57,670 INFO L226 Difference]: Without dead ends: 129
[2024-12-02 12:20:57,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:20:57,671 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 118 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 12:20:57,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 100 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 12:20:57,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states.
[2024-12-02 12:20:57,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129.
[2024-12-02 12:20:57,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 82 states have (on average 1.7073170731707317) internal successors, (140), 127 states have internal predecessors, (140), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:20:57,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 143 transitions.
[2024-12-02 12:20:57,679 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 143 transitions. Word has length 10
[2024-12-02 12:20:57,679 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:20:57,679 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 143 transitions.
[2024-12-02 12:20:57,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 12:20:57,679 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 143 transitions.
[2024-12-02 12:20:57,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-12-02 12:20:57,679 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:20:57,679 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:20:57,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 12:20:57,680 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:20:57,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:20:57,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1570703281, now seen corresponding path program 1 times
[2024-12-02 12:20:57,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:20:57,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167334484]
[2024-12-02 12:20:57,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:20:57,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:20:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:20:57,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:20:57,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:20:57,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167334484]
[2024-12-02 12:20:57,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167334484] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:20:57,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:20:57,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 12:20:57,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200975841]
[2024-12-02 12:20:57,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:20:57,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 12:20:57,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:20:57,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 12:20:57,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 12:20:57,839 INFO L87 Difference]: Start difference. First operand 129 states and 143 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 12:20:58,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:20:58,071 INFO L93 Difference]: Finished difference Result 167 states and 185 transitions.
[2024-12-02 12:20:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:20:58,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10
[2024-12-02 12:20:58,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:20:58,073 INFO L225 Difference]: With dead ends: 167
[2024-12-02 12:20:58,073 INFO L226 Difference]: Without dead ends: 167
[2024-12-02 12:20:58,073 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:20:58,074 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 138 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 12:20:58,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 148 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 12:20:58,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states.
[2024-12-02 12:20:58,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 159.
[2024-12-02 12:20:58,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 112 states have (on average 1.5892857142857142) internal successors, (178), 157 states have internal predecessors, (178), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:20:58,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 181 transitions.
[2024-12-02 12:20:58,082 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 181 transitions. Word has length 10
[2024-12-02 12:20:58,082 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:20:58,082 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 181 transitions.
[2024-12-02 12:20:58,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 12:20:58,083 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 181 transitions.
[2024-12-02 12:20:58,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-12-02 12:20:58,083 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:20:58,083 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:20:58,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 12:20:58,083 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:20:58,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:20:58,084 INFO L85 PathProgramCache]: Analyzing trace with hash 847221851, now seen corresponding path program 1 times
[2024-12-02 12:20:58,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:20:58,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266904698]
[2024-12-02 12:20:58,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:20:58,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:20:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:20:58,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:20:58,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:20:58,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266904698]
[2024-12-02 12:20:58,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266904698] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:20:58,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:20:58,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:20:58,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045551644]
[2024-12-02 12:20:58,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:20:58,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 12:20:58,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:20:58,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 12:20:58,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:20:58,222 INFO L87 Difference]: Start difference. First operand 159 states and 181 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 12:20:58,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:20:58,406 INFO L93 Difference]: Finished difference Result 158 states and 179 transitions.
[2024-12-02 12:20:58,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:20:58,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 13
[2024-12-02 12:20:58,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:20:58,408 INFO L225 Difference]: With dead ends: 158
[2024-12-02 12:20:58,408 INFO L226 Difference]: Without dead ends: 158
[2024-12-02 12:20:58,408 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 12:20:58,409 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 4 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 12:20:58,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 326 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 12:20:58,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states.
[2024-12-02 12:20:58,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158.
[2024-12-02 12:20:58,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 112 states have (on average 1.5714285714285714) internal successors, (176), 156 states have internal predecessors, (176), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:20:58,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 179 transitions.
[2024-12-02 12:20:58,417 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 179 transitions. Word has length 13
[2024-12-02 12:20:58,417 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:20:58,417 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 179 transitions.
[2024-12-02 12:20:58,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 12:20:58,417 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 179 transitions.
[2024-12-02 12:20:58,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-12-02 12:20:58,417 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:20:58,417 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:20:58,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 12:20:58,418 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:20:58,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:20:58,418 INFO L85 PathProgramCache]: Analyzing trace with hash 847221852, now seen corresponding path program 1 times
[2024-12-02 12:20:58,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:20:58,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459756]
[2024-12-02 12:20:58,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:20:58,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:20:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:20:58,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:20:58,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:20:58,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459756]
[2024-12-02 12:20:58,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459756] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:20:58,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:20:58,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:20:58,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287250006]
[2024-12-02 12:20:58,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:20:58,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 12:20:58,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:20:58,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 12:20:58,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:20:58,647 INFO L87 Difference]: Start difference. First operand 158 states and 179 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 12:20:58,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:20:58,852 INFO L93 Difference]: Finished difference Result 157 states and 177 transitions.
[2024-12-02 12:20:58,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:20:58,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 13
[2024-12-02 12:20:58,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:20:58,853 INFO L225 Difference]: With dead ends: 157
[2024-12-02 12:20:58,853 INFO L226 Difference]: Without dead ends: 157
[2024-12-02 12:20:58,853 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 12:20:58,854 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 2 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 12:20:58,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 308 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 12:20:58,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states.
[2024-12-02 12:20:58,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157.
[2024-12-02 12:20:58,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 112 states have (on average 1.5535714285714286) internal successors, (174), 155 states have internal predecessors, (174), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:20:58,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 177 transitions.
[2024-12-02 12:20:58,861 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 177 transitions. Word has length 13
[2024-12-02 12:20:58,861 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:20:58,861 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 177 transitions.
[2024-12-02 12:20:58,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 12:20:58,862 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 177 transitions.
[2024-12-02 12:20:58,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-12-02 12:20:58,862 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:20:58,862 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:20:58,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-02 12:20:58,863 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:20:58,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:20:58,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1010414564, now seen corresponding path program 1 times
[2024-12-02 12:20:58,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:20:58,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415506301]
[2024-12-02 12:20:58,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:20:58,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:20:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:20:58,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:20:58,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:20:58,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415506301]
[2024-12-02 12:20:58,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415506301] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:20:58,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:20:58,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:20:58,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330609031]
[2024-12-02 12:20:58,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:20:58,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 12:20:58,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:20:58,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 12:20:58,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 12:20:58,924 INFO L87 Difference]: Start difference. First operand 157 states and 177 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:20:59,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:20:59,064 INFO L93 Difference]: Finished difference Result 161 states and 176 transitions.
[2024-12-02 12:20:59,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:20:59,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2024-12-02 12:20:59,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:20:59,065 INFO L225 Difference]: With dead ends: 161
[2024-12-02 12:20:59,065 INFO L226 Difference]: Without dead ends: 161
[2024-12-02 12:20:59,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:20:59,066 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 127 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 12:20:59,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 206 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 12:20:59,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states.
[2024-12-02 12:20:59,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 157.
[2024-12-02 12:20:59,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 112 states have (on average 1.5267857142857142) internal successors, (171), 155 states have internal predecessors, (171), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:20:59,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 174 transitions.
[2024-12-02 12:20:59,074 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 174 transitions. Word has length 17
[2024-12-02 12:20:59,074 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:20:59,074 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 174 transitions.
[2024-12-02 12:20:59,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:20:59,074 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 174 transitions.
[2024-12-02 12:20:59,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-12-02 12:20:59,074 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:20:59,075 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:20:59,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-12-02 12:20:59,075 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:20:59,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:20:59,075 INFO L85 PathProgramCache]: Analyzing trace with hash 94244445, now seen corresponding path program 1 times
[2024-12-02 12:20:59,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:20:59,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595241456]
[2024-12-02 12:20:59,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:20:59,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:20:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:20:59,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:20:59,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:20:59,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595241456]
[2024-12-02 12:20:59,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595241456] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:20:59,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:20:59,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-12-02 12:20:59,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076234535]
[2024-12-02 12:20:59,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:20:59,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 12:20:59,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:20:59,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 12:20:59,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2024-12-02 12:20:59,327 INFO L87 Difference]: Start difference. First operand 157 states and 174 transitions. Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:20:59,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:20:59,717 INFO L93 Difference]: Finished difference Result 156 states and 173 transitions.
[2024-12-02 12:20:59,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 12:20:59,717 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2024-12-02 12:20:59,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:20:59,718 INFO L225 Difference]: With dead ends: 156
[2024-12-02 12:20:59,718 INFO L226 Difference]: Without dead ends: 156
[2024-12-02 12:20:59,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182
[2024-12-02 12:20:59,719 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 115 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 12:20:59,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 256 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 12:20:59,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states.
[2024-12-02 12:20:59,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156.
[2024-12-02 12:20:59,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 112 states have (on average 1.5178571428571428) internal successors, (170), 154 states have internal predecessors, (170), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:20:59,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 173 transitions.
[2024-12-02 12:20:59,724 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 173 transitions. Word has length 17
[2024-12-02 12:20:59,724 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:20:59,724 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 173 transitions.
[2024-12-02 12:20:59,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:20:59,725 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 173 transitions.
[2024-12-02 12:20:59,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-12-02 12:20:59,725 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:20:59,725 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:20:59,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-12-02 12:20:59,725 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:20:59,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:20:59,726 INFO L85 PathProgramCache]: Analyzing trace with hash 94244446, now seen corresponding path program 1 times
[2024-12-02 12:20:59,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:20:59,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032290093]
[2024-12-02 12:20:59,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:20:59,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:20:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:00,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:21:00,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:21:00,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032290093]
[2024-12-02 12:21:00,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032290093] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:21:00,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:21:00,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-12-02 12:21:00,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423070313]
[2024-12-02 12:21:00,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:21:00,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-02 12:21:00,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:21:00,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-02 12:21:00,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2024-12-02 12:21:00,089 INFO L87 Difference]: Start difference. First operand 156 states and 173 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:00,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:21:00,601 INFO L93 Difference]: Finished difference Result 152 states and 169 transitions.
[2024-12-02 12:21:00,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-12-02 12:21:00,602 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2024-12-02 12:21:00,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:21:00,602 INFO L225 Difference]: With dead ends: 152
[2024-12-02 12:21:00,602 INFO L226 Difference]: Without dead ends: 152
[2024-12-02 12:21:00,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380
[2024-12-02 12:21:00,603 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 119 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 12:21:00,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 287 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 12:21:00,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states.
[2024-12-02 12:21:00,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 142.
[2024-12-02 12:21:00,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 103 states have (on average 1.5048543689320388) internal successors, (155), 140 states have internal predecessors, (155), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:00,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 158 transitions.
[2024-12-02 12:21:00,608 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 158 transitions. Word has length 17
[2024-12-02 12:21:00,608 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:21:00,608 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 158 transitions.
[2024-12-02 12:21:00,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:00,608 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 158 transitions.
[2024-12-02 12:21:00,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2024-12-02 12:21:00,609 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:21:00,609 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:21:00,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-12-02 12:21:00,609 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:21:00,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:21:00,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1259925439, now seen corresponding path program 1 times
[2024-12-02 12:21:00,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:21:00,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29433995]
[2024-12-02 12:21:00,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:00,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:21:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:00,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:21:00,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:21:00,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29433995]
[2024-12-02 12:21:00,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29433995] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:21:00,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:21:00,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 12:21:00,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81018409]
[2024-12-02 12:21:00,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:21:00,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 12:21:00,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:21:00,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 12:21:00,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-12-02 12:21:00,784 INFO L87 Difference]: Start difference. First operand 142 states and 158 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 12:21:01,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:21:01,005 INFO L93 Difference]: Finished difference Result 160 states and 178 transitions.
[2024-12-02 12:21:01,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-12-02 12:21:01,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 18
[2024-12-02 12:21:01,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:21:01,006 INFO L225 Difference]: With dead ends: 160
[2024-12-02 12:21:01,006 INFO L226 Difference]: Without dead ends: 160
[2024-12-02 12:21:01,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2024-12-02 12:21:01,007 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 27 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 12:21:01,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 454 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 12:21:01,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states.
[2024-12-02 12:21:01,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 150.
[2024-12-02 12:21:01,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 111 states have (on average 1.4774774774774775) internal successors, (164), 148 states have internal predecessors, (164), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:01,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 167 transitions.
[2024-12-02 12:21:01,012 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 167 transitions. Word has length 18
[2024-12-02 12:21:01,012 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:21:01,012 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 167 transitions.
[2024-12-02 12:21:01,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 12:21:01,013 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 167 transitions.
[2024-12-02 12:21:01,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2024-12-02 12:21:01,013 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:21:01,013 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:21:01,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-12-02 12:21:01,013 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:21:01,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:21:01,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1662329312, now seen corresponding path program 1 times
[2024-12-02 12:21:01,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:21:01,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938663050]
[2024-12-02 12:21:01,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:01,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:21:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:01,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:21:01,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:21:01,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938663050]
[2024-12-02 12:21:01,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938663050] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:21:01,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:21:01,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 12:21:01,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778310514]
[2024-12-02 12:21:01,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:21:01,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 12:21:01,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:21:01,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 12:21:01,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-12-02 12:21:01,142 INFO L87 Difference]: Start difference. First operand 150 states and 167 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 12:21:01,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:21:01,349 INFO L93 Difference]: Finished difference Result 165 states and 186 transitions.
[2024-12-02 12:21:01,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 12:21:01,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 20
[2024-12-02 12:21:01,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:21:01,351 INFO L225 Difference]: With dead ends: 165
[2024-12-02 12:21:01,351 INFO L226 Difference]: Without dead ends: 165
[2024-12-02 12:21:01,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 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 12:21:01,351 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 14 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 12:21:01,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 331 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 12:21:01,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states.
[2024-12-02 12:21:01,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 160.
[2024-12-02 12:21:01,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 121 states have (on average 1.462809917355372) internal successors, (177), 158 states have internal predecessors, (177), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:01,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 180 transitions.
[2024-12-02 12:21:01,356 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 180 transitions. Word has length 20
[2024-12-02 12:21:01,357 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:21:01,357 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 180 transitions.
[2024-12-02 12:21:01,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 12:21:01,357 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 180 transitions.
[2024-12-02 12:21:01,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-12-02 12:21:01,357 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:21:01,357 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:21:01,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-12-02 12:21:01,358 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:21:01,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:21:01,358 INFO L85 PathProgramCache]: Analyzing trace with hash 207420364, now seen corresponding path program 1 times
[2024-12-02 12:21:01,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:21:01,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020077992]
[2024-12-02 12:21:01,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:01,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:21:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:01,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:21:01,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:21:01,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020077992]
[2024-12-02 12:21:01,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020077992] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:21:01,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:21:01,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:21:01,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060464552]
[2024-12-02 12:21:01,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:21:01,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 12:21:01,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:21:01,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 12:21:01,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:21:01,459 INFO L87 Difference]: Start difference. First operand 160 states and 180 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:01,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:21:01,611 INFO L93 Difference]: Finished difference Result 159 states and 178 transitions.
[2024-12-02 12:21:01,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:21:01,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22
[2024-12-02 12:21:01,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:21:01,612 INFO L225 Difference]: With dead ends: 159
[2024-12-02 12:21:01,612 INFO L226 Difference]: Without dead ends: 159
[2024-12-02 12:21:01,613 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 12:21:01,613 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 4 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 12:21:01,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 305 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 12:21:01,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states.
[2024-12-02 12:21:01,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159.
[2024-12-02 12:21:01,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 121 states have (on average 1.4462809917355373) internal successors, (175), 157 states have internal predecessors, (175), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:01,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 178 transitions.
[2024-12-02 12:21:01,618 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 178 transitions. Word has length 22
[2024-12-02 12:21:01,618 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:21:01,618 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 178 transitions.
[2024-12-02 12:21:01,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:01,618 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 178 transitions.
[2024-12-02 12:21:01,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-12-02 12:21:01,618 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:21:01,619 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:21:01,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-12-02 12:21:01,619 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:21:01,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:21:01,619 INFO L85 PathProgramCache]: Analyzing trace with hash 207420365, now seen corresponding path program 1 times
[2024-12-02 12:21:01,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:21:01,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659874630]
[2024-12-02 12:21:01,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:01,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:21:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:01,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:21:01,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:21:01,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659874630]
[2024-12-02 12:21:01,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659874630] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:21:01,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:21:01,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:21:01,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751600284]
[2024-12-02 12:21:01,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:21:01,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 12:21:01,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:21:01,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 12:21:01,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:21:01,796 INFO L87 Difference]: Start difference. First operand 159 states and 178 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:01,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:21:01,983 INFO L93 Difference]: Finished difference Result 158 states and 176 transitions.
[2024-12-02 12:21:01,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:21:01,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22
[2024-12-02 12:21:01,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:21:01,984 INFO L225 Difference]: With dead ends: 158
[2024-12-02 12:21:01,984 INFO L226 Difference]: Without dead ends: 158
[2024-12-02 12:21:01,984 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 12:21:01,985 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 2 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 12:21:01,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 295 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 12:21:01,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states.
[2024-12-02 12:21:01,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158.
[2024-12-02 12:21:01,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 121 states have (on average 1.4297520661157024) internal successors, (173), 156 states have internal predecessors, (173), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:01,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 176 transitions.
[2024-12-02 12:21:01,991 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 176 transitions. Word has length 22
[2024-12-02 12:21:01,991 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:21:01,991 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 176 transitions.
[2024-12-02 12:21:01,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:01,991 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 176 transitions.
[2024-12-02 12:21:01,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-12-02 12:21:01,992 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:21:01,992 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:21:01,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-12-02 12:21:01,992 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:21:01,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:21:01,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1523998158, now seen corresponding path program 1 times
[2024-12-02 12:21:01,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:21:01,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434708881]
[2024-12-02 12:21:01,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:01,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:21:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:02,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:21:02,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:21:02,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434708881]
[2024-12-02 12:21:02,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434708881] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:21:02,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:21:02,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-12-02 12:21:02,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186814466]
[2024-12-02 12:21:02,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:21:02,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 12:21:02,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:21:02,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 12:21:02,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2024-12-02 12:21:02,215 INFO L87 Difference]: Start difference. First operand 158 states and 176 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:02,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:21:02,626 INFO L93 Difference]: Finished difference Result 157 states and 175 transitions.
[2024-12-02 12:21:02,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 12:21:02,626 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26
[2024-12-02 12:21:02,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:21:02,627 INFO L225 Difference]: With dead ends: 157
[2024-12-02 12:21:02,627 INFO L226 Difference]: Without dead ends: 157
[2024-12-02 12:21:02,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182
[2024-12-02 12:21:02,628 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 96 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 12:21:02,628 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 281 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 12:21:02,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states.
[2024-12-02 12:21:02,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157.
[2024-12-02 12:21:02,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 121 states have (on average 1.421487603305785) internal successors, (172), 155 states have internal predecessors, (172), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:02,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 175 transitions.
[2024-12-02 12:21:02,632 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 175 transitions. Word has length 26
[2024-12-02 12:21:02,633 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:21:02,633 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 175 transitions.
[2024-12-02 12:21:02,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:02,633 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 175 transitions.
[2024-12-02 12:21:02,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-12-02 12:21:02,633 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:21:02,633 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:21:02,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-12-02 12:21:02,634 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:21:02,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:21:02,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1523998159, now seen corresponding path program 1 times
[2024-12-02 12:21:02,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:21:02,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120558559]
[2024-12-02 12:21:02,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:02,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:21:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:03,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:21:03,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:21:03,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120558559]
[2024-12-02 12:21:03,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120558559] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:21:03,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:21:03,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-12-02 12:21:03,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155393456]
[2024-12-02 12:21:03,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:21:03,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-12-02 12:21:03,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:21:03,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-12-02 12:21:03,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2024-12-02 12:21:03,110 INFO L87 Difference]: Start difference. First operand 157 states and 175 transitions. Second operand has 11 states, 10 states have (on average 2.6) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:03,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:21:03,650 INFO L93 Difference]: Finished difference Result 168 states and 186 transitions.
[2024-12-02 12:21:03,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-12-02 12:21:03,651 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.6) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26
[2024-12-02 12:21:03,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:21:03,652 INFO L225 Difference]: With dead ends: 168
[2024-12-02 12:21:03,652 INFO L226 Difference]: Without dead ends: 168
[2024-12-02 12:21:03,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272
[2024-12-02 12:21:03,653 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 194 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 12:21:03,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 344 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 12:21:03,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states.
[2024-12-02 12:21:03,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 160.
[2024-12-02 12:21:03,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 124 states have (on average 1.4112903225806452) internal successors, (175), 158 states have internal predecessors, (175), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:03,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 178 transitions.
[2024-12-02 12:21:03,658 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 178 transitions. Word has length 26
[2024-12-02 12:21:03,658 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:21:03,658 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 178 transitions.
[2024-12-02 12:21:03,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.6) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:03,658 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 178 transitions.
[2024-12-02 12:21:03,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2024-12-02 12:21:03,659 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:21:03,659 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:21:03,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-12-02 12:21:03,659 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:21:03,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:21:03,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1715646929, now seen corresponding path program 1 times
[2024-12-02 12:21:03,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:21:03,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983624213]
[2024-12-02 12:21:03,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:03,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:21:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:04,020 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 12:21:04,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:21:04,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983624213]
[2024-12-02 12:21:04,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983624213] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:21:04,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577626893]
[2024-12-02 12:21:04,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:04,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:21:04,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:21:04,024 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:21:04,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 12:21:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:04,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 42 conjuncts are in the unsatisfiable core
[2024-12-02 12:21:04,154 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:21:04,188 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 12:21:04,299 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 12:21:04,299 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 12:21:04,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1
[2024-12-02 12:21:04,353 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 1
[2024-12-02 12:21:04,430 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 15 treesize of output 7
[2024-12-02 12:21:04,492 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:21:04,493 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30
[2024-12-02 12:21:04,619 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size
[2024-12-02 12:21:04,620 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 24 treesize of output 17
[2024-12-02 12:21:04,676 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:21:04,676 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33
[2024-12-02 12:21:04,838 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 13
[2024-12-02 12:21:04,844 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 12:21:04,844 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:21:05,085 INFO L349 Elim1Store]: treesize reduction 5, result has 66.7 percent of original size
[2024-12-02 12:21:05,086 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 19 treesize of output 18
[2024-12-02 12:21:05,666 INFO L349 Elim1Store]: treesize reduction 17, result has 69.6 percent of original size
[2024-12-02 12:21:05,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 94
[2024-12-02 12:21:05,702 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:05,702 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 460 treesize of output 455
[2024-12-02 12:21:05,732 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 212 treesize of output 202
[2024-12-02 12:21:05,769 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 6 treesize of output 4
[2024-12-02 12:21:05,805 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:05,805 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 184 treesize of output 140
[2024-12-02 12:21:06,476 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 12:21:06,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577626893] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:21:06,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 12:21:06,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 15] total 35
[2024-12-02 12:21:06,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218138978]
[2024-12-02 12:21:06,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:21:06,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states
[2024-12-02 12:21:06,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:21:06,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants.
[2024-12-02 12:21:06,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1130, Unknown=14, NotChecked=0, Total=1260
[2024-12-02 12:21:06,478 INFO L87 Difference]: Start difference. First operand 160 states and 178 transitions. Second operand has 36 states, 35 states have (on average 2.2285714285714286) internal successors, (78), 36 states have internal predecessors, (78), 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 12:21:08,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:21:08,247 INFO L93 Difference]: Finished difference Result 228 states and 257 transitions.
[2024-12-02 12:21:08,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-12-02 12:21:08,248 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.2285714285714286) internal successors, (78), 36 states have internal predecessors, (78), 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 30
[2024-12-02 12:21:08,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:21:08,249 INFO L225 Difference]: With dead ends: 228
[2024-12-02 12:21:08,249 INFO L226 Difference]: Without dead ends: 228
[2024-12-02 12:21:08,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=271, Invalid=1785, Unknown=14, NotChecked=0, Total=2070
[2024-12-02 12:21:08,251 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 316 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 2430 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 2472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-12-02 12:21:08,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 1173 Invalid, 2472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2430 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-12-02 12:21:08,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states.
[2024-12-02 12:21:08,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 182.
[2024-12-02 12:21:08,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 146 states have (on average 1.3767123287671232) internal successors, (201), 180 states have internal predecessors, (201), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:08,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 204 transitions.
[2024-12-02 12:21:08,257 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 204 transitions. Word has length 30
[2024-12-02 12:21:08,257 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:21:08,257 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 204 transitions.
[2024-12-02 12:21:08,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 2.2285714285714286) internal successors, (78), 36 states have internal predecessors, (78), 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 12:21:08,257 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 204 transitions.
[2024-12-02 12:21:08,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2024-12-02 12:21:08,258 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:21:08,258 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:21:08,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 12:21:08,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2024-12-02 12:21:08,459 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:21:08,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:21:08,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1715646928, now seen corresponding path program 1 times
[2024-12-02 12:21:08,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:21:08,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937712590]
[2024-12-02 12:21:08,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:08,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:21:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:08,884 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 12:21:08,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:21:08,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937712590]
[2024-12-02 12:21:08,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937712590] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:21:08,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577861928]
[2024-12-02 12:21:08,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:08,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:21:08,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:21:08,886 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:21:08,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 12:21:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:08,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 50 conjuncts are in the unsatisfiable core
[2024-12-02 12:21:08,993 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:21:09,000 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 12:21:09,084 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 12:21:09,084 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 12:21:09,091 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 8 treesize of output 1
[2024-12-02 12:21:09,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 12:21:09,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1
[2024-12-02 12:21:09,267 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:21:09,267 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 43
[2024-12-02 12:21:09,277 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 24 treesize of output 11
[2024-12-02 12:21:09,413 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size
[2024-12-02 12:21:09,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24
[2024-12-02 12:21:09,426 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:21:09,426 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 16 treesize of output 11
[2024-12-02 12:21:09,449 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:21:09,450 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45
[2024-12-02 12:21:09,456 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 24 treesize of output 11
[2024-12-02 12:21:09,610 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 13
[2024-12-02 12:21:09,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3
[2024-12-02 12:21:09,656 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 12:21:09,656 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:21:09,920 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_589 (Array Int Int)) (v_ArrVal_590 (Array Int Int)) (|v_ULTIMATE.start_main_~x~0#1.offset_87| Int)) (or (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_87|) (< (+ 3 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_589) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_87|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_590) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_87|))) (< |v_ULTIMATE.start_main_~x~0#1.offset_87| 0))) (forall ((v_ArrVal_589 (Array Int Int)) (|v_ULTIMATE.start_main_~x~0#1.offset_87| Int)) (or (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_87|) (< |v_ULTIMATE.start_main_~x~0#1.offset_87| 0) (< 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_589) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_87|) 1))))) is different from false
[2024-12-02 12:21:09,968 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_589 (Array Int Int)) (v_ArrVal_590 (Array Int Int)) (|v_ULTIMATE.start_main_~x~0#1.offset_87| Int)) (or (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_87|) (< (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_589) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_87|) 3) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_590) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_87|))) (< |v_ULTIMATE.start_main_~x~0#1.offset_87| 0))) (forall ((v_ArrVal_589 (Array Int Int)) (|v_ULTIMATE.start_main_~x~0#1.offset_87| Int)) (or (< 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_589) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_87|) 1)) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_87|) (< |v_ULTIMATE.start_main_~x~0#1.offset_87| 0)))) is different from false
[2024-12-02 12:21:09,996 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) (and (forall ((v_ArrVal_589 (Array Int Int)) (v_ArrVal_590 (Array Int Int)) (|v_ULTIMATE.start_main_~x~0#1.offset_87| Int)) (or (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_87|) (< (+ 3 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_589) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_87|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_590) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_87|))) (< |v_ULTIMATE.start_main_~x~0#1.offset_87| 0))) (forall ((v_ArrVal_589 (Array Int Int)) (|v_ULTIMATE.start_main_~x~0#1.offset_87| Int)) (or (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_87|) (< |v_ULTIMATE.start_main_~x~0#1.offset_87| 0) (< 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_589) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_87|) 1)))))) is different from false
[2024-12-02 12:21:10,053 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem4#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_#t~mem4#1.offset| 4))) (and (forall ((v_ArrVal_589 (Array Int Int)) (v_ArrVal_584 Int) (v_ArrVal_585 (Array Int Int)) (|v_ULTIMATE.start_main_~x~0#1.offset_87| Int)) (or (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_87|) (< 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_585) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem4#1.base| (store .cse0 .cse1 v_ArrVal_584)) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|) v_ArrVal_589) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_87|) 1)) (< |v_ULTIMATE.start_main_~x~0#1.offset_87| 0))) (forall ((v_ArrVal_589 (Array Int Int)) (v_ArrVal_584 Int) (v_ArrVal_590 (Array Int Int)) (v_ArrVal_585 (Array Int Int)) (|v_ULTIMATE.start_main_~x~0#1.offset_87| Int)) (or (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_87|) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem4#1.base| (store .cse0 .cse1 v_ArrVal_584)))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) (< (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_585) .cse2 v_ArrVal_589) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_87|) 3) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_590) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_87|))))) (< |v_ULTIMATE.start_main_~x~0#1.offset_87| 0))))) is different from false
[2024-12-02 12:21:10,334 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:10,334 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 54
[2024-12-02 12:21:10,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:10,349 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 166 treesize of output 161
[2024-12-02 12:21:10,359 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 57 treesize of output 55
[2024-12-02 12:21:10,365 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 86 treesize of output 80
[2024-12-02 12:21:10,474 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:10,474 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 119
[2024-12-02 12:21:10,477 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 12:21:10,481 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:10,482 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30
[2024-12-02 12:21:10,485 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 12:21:10,487 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:21:10,488 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:21:10,488 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 27 treesize of output 19
[2024-12-02 12:21:10,491 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 12:21:10,493 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:21:10,494 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:21:10,494 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 20 treesize of output 12
[2024-12-02 12:21:10,734 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 12:21:10,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577861928] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:21:10,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 12:21:10,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 14] total 37
[2024-12-02 12:21:10,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767312760]
[2024-12-02 12:21:10,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:21:10,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states
[2024-12-02 12:21:10,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:21:10,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants.
[2024-12-02 12:21:10,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1006, Unknown=5, NotChecked=268, Total=1406
[2024-12-02 12:21:10,736 INFO L87 Difference]: Start difference. First operand 182 states and 204 transitions. Second operand has 38 states, 37 states have (on average 2.3783783783783785) internal successors, (88), 38 states have internal predecessors, (88), 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 12:21:12,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:21:12,783 INFO L93 Difference]: Finished difference Result 261 states and 298 transitions.
[2024-12-02 12:21:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states.
[2024-12-02 12:21:12,783 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.3783783783783785) internal successors, (88), 38 states have internal predecessors, (88), 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 30
[2024-12-02 12:21:12,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:21:12,784 INFO L225 Difference]: With dead ends: 261
[2024-12-02 12:21:12,784 INFO L226 Difference]: Without dead ends: 261
[2024-12-02 12:21:12,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=379, Invalid=2182, Unknown=5, NotChecked=404, Total=2970
[2024-12-02 12:21:12,785 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 652 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 2093 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 3110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 929 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-12-02 12:21:12,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 1293 Invalid, 3110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2093 Invalid, 0 Unknown, 929 Unchecked, 1.4s Time]
[2024-12-02 12:21:12,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states.
[2024-12-02 12:21:12,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 194.
[2024-12-02 12:21:12,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 164 states have (on average 1.3353658536585367) internal successors, (219), 192 states have internal predecessors, (219), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:12,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 222 transitions.
[2024-12-02 12:21:12,788 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 222 transitions. Word has length 30
[2024-12-02 12:21:12,789 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:21:12,789 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 222 transitions.
[2024-12-02 12:21:12,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.3783783783783785) internal successors, (88), 38 states have internal predecessors, (88), 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 12:21:12,789 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 222 transitions.
[2024-12-02 12:21:12,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2024-12-02 12:21:12,789 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:21:12,790 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:21:12,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 12:21:12,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-12-02 12:21:12,990 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:21:12,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:21:12,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2090891916, now seen corresponding path program 1 times
[2024-12-02 12:21:12,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:21:12,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260507947]
[2024-12-02 12:21:12,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:12,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:21:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:13,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:21:13,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:21:13,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260507947]
[2024-12-02 12:21:13,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260507947] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:21:13,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834019198]
[2024-12-02 12:21:13,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:13,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:21:13,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:21:13,406 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:21:13,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 12:21:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:13,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 42 conjuncts are in the unsatisfiable core
[2024-12-02 12:21:13,517 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:21:13,519 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 12:21:13,585 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 12:21:13,586 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 12:21:13,621 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 1
[2024-12-02 12:21:13,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1
[2024-12-02 12:21:13,676 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 15 treesize of output 7
[2024-12-02 12:21:13,716 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:21:13,716 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35
[2024-12-02 12:21:13,806 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size
[2024-12-02 12:21:13,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24
[2024-12-02 12:21:13,820 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:21:13,820 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33
[2024-12-02 12:21:13,912 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 33 treesize of output 17
[2024-12-02 12:21:13,924 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 13
[2024-12-02 12:21:13,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:21:13,926 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:21:14,158 INFO L349 Elim1Store]: treesize reduction 5, result has 87.2 percent of original size
[2024-12-02 12:21:14,158 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 43 treesize of output 42
[2024-12-02 12:21:14,364 INFO L349 Elim1Store]: treesize reduction 17, result has 69.6 percent of original size
[2024-12-02 12:21:14,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 94
[2024-12-02 12:21:14,391 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:14,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 203 treesize of output 212
[2024-12-02 12:21:14,400 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 88 treesize of output 82
[2024-12-02 12:21:14,577 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:14,577 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 63 treesize of output 67
[2024-12-02 12:21:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:21:14,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834019198] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:21:14,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 12:21:14,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13] total 32
[2024-12-02 12:21:14,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643882066]
[2024-12-02 12:21:14,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:21:14,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states
[2024-12-02 12:21:14,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:21:14,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants.
[2024-12-02 12:21:14,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=933, Unknown=11, NotChecked=0, Total=1056
[2024-12-02 12:21:14,922 INFO L87 Difference]: Start difference. First operand 194 states and 222 transitions. Second operand has 33 states, 32 states have (on average 2.59375) internal successors, (83), 33 states have internal predecessors, (83), 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 12:21:16,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:21:16,214 INFO L93 Difference]: Finished difference Result 241 states and 276 transitions.
[2024-12-02 12:21:16,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 12:21:16,214 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.59375) internal successors, (83), 33 states have internal predecessors, (83), 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 32
[2024-12-02 12:21:16,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:21:16,215 INFO L225 Difference]: With dead ends: 241
[2024-12-02 12:21:16,215 INFO L226 Difference]: Without dead ends: 241
[2024-12-02 12:21:16,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=233, Invalid=1396, Unknown=11, NotChecked=0, Total=1640
[2024-12-02 12:21:16,216 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 289 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 2073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-12-02 12:21:16,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 1206 Invalid, 2073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-12-02 12:21:16,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states.
[2024-12-02 12:21:16,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 201.
[2024-12-02 12:21:16,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 171 states have (on average 1.3333333333333333) internal successors, (228), 199 states have internal predecessors, (228), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:16,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 231 transitions.
[2024-12-02 12:21:16,221 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 231 transitions. Word has length 32
[2024-12-02 12:21:16,221 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:21:16,221 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 231 transitions.
[2024-12-02 12:21:16,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.59375) internal successors, (83), 33 states have internal predecessors, (83), 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 12:21:16,221 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 231 transitions.
[2024-12-02 12:21:16,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2024-12-02 12:21:16,222 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:21:16,222 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:21:16,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 12:21:16,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2024-12-02 12:21:16,422 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:21:16,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:21:16,423 INFO L85 PathProgramCache]: Analyzing trace with hash 2090891917, now seen corresponding path program 1 times
[2024-12-02 12:21:16,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:21:16,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45966036]
[2024-12-02 12:21:16,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:16,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:21:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:16,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:21:16,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:21:16,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45966036]
[2024-12-02 12:21:16,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45966036] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:21:16,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513751291]
[2024-12-02 12:21:16,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:16,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:21:16,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:21:16,975 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:21:16,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 12:21:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:17,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 54 conjuncts are in the unsatisfiable core
[2024-12-02 12:21:17,116 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:21:17,120 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 12:21:17,216 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 12:21:17,224 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 12:21:17,224 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 12:21:17,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1
[2024-12-02 12:21:17,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 12:21:17,359 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:21:17,359 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45
[2024-12-02 12:21:17,367 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 24 treesize of output 11
[2024-12-02 12:21:17,473 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-12-02 12:21:17,473 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 16 treesize of output 15
[2024-12-02 12:21:17,493 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size
[2024-12-02 12:21:17,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24
[2024-12-02 12:21:17,547 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:21:17,547 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45
[2024-12-02 12:21:17,554 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 24 treesize of output 11
[2024-12-02 12:21:17,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-12-02 12:21:17,725 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 33 treesize of output 17
[2024-12-02 12:21:17,761 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 13
[2024-12-02 12:21:17,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3
[2024-12-02 12:21:17,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:21:17,797 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:21:18,831 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:18,832 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 39
[2024-12-02 12:21:18,839 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:18,840 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 43
[2024-12-02 12:21:18,845 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 79 treesize of output 67
[2024-12-02 12:21:18,862 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:18,862 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 112 treesize of output 111
[2024-12-02 12:21:18,872 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 80 treesize of output 70
[2024-12-02 12:21:18,879 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 88 treesize of output 82
[2024-12-02 12:21:18,886 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 54
[2024-12-02 12:21:19,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:19,005 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 74
[2024-12-02 12:21:19,014 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:19,015 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 62
[2024-12-02 12:21:19,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:19,042 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 449 treesize of output 384
[2024-12-02 12:21:19,084 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:19,084 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 458 treesize of output 441
[2024-12-02 12:21:19,100 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 116 treesize of output 110
[2024-12-02 12:21:19,109 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 110 treesize of output 104
[2024-12-02 12:21:19,127 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:19,127 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 86 treesize of output 82
[2024-12-02 12:21:19,138 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 64 treesize of output 62
[2024-12-02 12:21:20,610 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:20,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 324 treesize of output 923
[2024-12-02 12:21:35,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:21:35,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513751291] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:21:35,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 12:21:35,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 14] total 36
[2024-12-02 12:21:35,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312022002]
[2024-12-02 12:21:35,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:21:35,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states
[2024-12-02 12:21:35,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:21:35,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants.
[2024-12-02 12:21:35,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1192, Unknown=7, NotChecked=0, Total=1332
[2024-12-02 12:21:35,457 INFO L87 Difference]: Start difference. First operand 201 states and 231 transitions. Second operand has 37 states, 36 states have (on average 2.611111111111111) internal successors, (94), 37 states have internal predecessors, (94), 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 12:21:37,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:21:37,192 INFO L93 Difference]: Finished difference Result 243 states and 278 transitions.
[2024-12-02 12:21:37,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-12-02 12:21:37,193 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.611111111111111) internal successors, (94), 37 states have internal predecessors, (94), 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 32
[2024-12-02 12:21:37,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:21:37,193 INFO L225 Difference]: With dead ends: 243
[2024-12-02 12:21:37,193 INFO L226 Difference]: Without dead ends: 243
[2024-12-02 12:21:37,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=267, Invalid=1888, Unknown=7, NotChecked=0, Total=2162
[2024-12-02 12:21:37,194 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 447 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 1821 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-12-02 12:21:37,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 998 Invalid, 1870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1821 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-12-02 12:21:37,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states.
[2024-12-02 12:21:37,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 201.
[2024-12-02 12:21:37,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 171 states have (on average 1.327485380116959) internal successors, (227), 199 states have internal predecessors, (227), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:37,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 230 transitions.
[2024-12-02 12:21:37,197 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 230 transitions. Word has length 32
[2024-12-02 12:21:37,197 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:21:37,197 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 230 transitions.
[2024-12-02 12:21:37,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.611111111111111) internal successors, (94), 37 states have internal predecessors, (94), 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 12:21:37,197 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 230 transitions.
[2024-12-02 12:21:37,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2024-12-02 12:21:37,197 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:21:37,198 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:21:37,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-12-02 12:21:37,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:21:37,398 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:21:37,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:21:37,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1574315360, now seen corresponding path program 1 times
[2024-12-02 12:21:37,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:21:37,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172576486]
[2024-12-02 12:21:37,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:37,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:21:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:37,476 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-12-02 12:21:37,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:21:37,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172576486]
[2024-12-02 12:21:37,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172576486] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:21:37,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610855018]
[2024-12-02 12:21:37,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:37,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:21:37,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:21:37,479 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:21:37,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-12-02 12:21:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:37,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 12:21:37,621 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:21:37,627 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 14 treesize of output 9
[2024-12-02 12:21:37,640 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 14 treesize of output 9
[2024-12-02 12:21:37,677 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 12:21:37,677 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 12:21:37,685 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-12-02 12:21:37,685 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:21:37,748 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-12-02 12:21:37,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610855018] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:21:37,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 12:21:37,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 5
[2024-12-02 12:21:37,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888158475]
[2024-12-02 12:21:37,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:21:37,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 12:21:37,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:21:37,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 12:21:37,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-12-02 12:21:37,749 INFO L87 Difference]: Start difference. First operand 201 states and 230 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:37,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:21:37,872 INFO L93 Difference]: Finished difference Result 199 states and 223 transitions.
[2024-12-02 12:21:37,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 12:21:37,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37
[2024-12-02 12:21:37,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:21:37,873 INFO L225 Difference]: With dead ends: 199
[2024-12-02 12:21:37,873 INFO L226 Difference]: Without dead ends: 199
[2024-12-02 12:21:37,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-12-02 12:21:37,874 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 211 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 12:21:37,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 76 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 12:21:37,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states.
[2024-12-02 12:21:37,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 198.
[2024-12-02 12:21:37,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 170 states have (on average 1.3) internal successors, (221), 196 states have internal predecessors, (221), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:37,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 222 transitions.
[2024-12-02 12:21:37,880 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 222 transitions. Word has length 37
[2024-12-02 12:21:37,880 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:21:37,880 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 222 transitions.
[2024-12-02 12:21:37,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:21:37,881 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 222 transitions.
[2024-12-02 12:21:37,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2024-12-02 12:21:37,881 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:21:37,881 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:21:37,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-12-02 12:21:38,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:21:38,082 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:21:38,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:21:38,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1371583942, now seen corresponding path program 1 times
[2024-12-02 12:21:38,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:21:38,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446187778]
[2024-12-02 12:21:38,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:38,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:21:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:38,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:21:38,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:21:38,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446187778]
[2024-12-02 12:21:38,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446187778] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:21:38,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750821040]
[2024-12-02 12:21:38,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:38,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:21:38,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:21:38,538 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:21:38,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-12-02 12:21:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:38,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 36 conjuncts are in the unsatisfiable core
[2024-12-02 12:21:38,668 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:21:38,808 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size
[2024-12-02 12:21:38,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21
[2024-12-02 12:21:38,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1
[2024-12-02 12:21:38,949 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:21:38,950 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33
[2024-12-02 12:21:39,061 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size
[2024-12-02 12:21:39,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24
[2024-12-02 12:21:39,086 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:21:39,086 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33
[2024-12-02 12:21:39,165 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 13
[2024-12-02 12:21:39,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:21:39,265 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:21:39,542 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1049 (Array Int Int)) (v_ArrVal_1047 (Array Int Int)) (|v_ULTIMATE.start_main_~x~0#1.offset_110| Int)) (or (= (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|) v_ArrVal_1047))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|) v_ArrVal_1049)) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_110|)) 1) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_110|) (< |v_ULTIMATE.start_main_~x~0#1.offset_110| 0))) is different from false
[2024-12-02 12:21:39,557 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:39,557 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 31
[2024-12-02 12:21:39,565 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:39,565 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 252 treesize of output 227
[2024-12-02 12:21:39,572 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 171 treesize of output 163
[2024-12-02 12:21:39,580 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:39,580 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 163 treesize of output 159
[2024-12-02 12:21:46,181 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:21:46,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 210 treesize of output 1016
[2024-12-02 12:31:40,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:31:40,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750821040] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:31:40,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 12:31:40,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 15] total 36
[2024-12-02 12:31:40,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707406346]
[2024-12-02 12:31:40,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:31:40,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states
[2024-12-02 12:31:40,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:31:40,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants.
[2024-12-02 12:31:40,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1073, Unknown=25, NotChecked=68, Total=1332
[2024-12-02 12:31:40,529 INFO L87 Difference]: Start difference. First operand 198 states and 222 transitions. Second operand has 37 states, 36 states have (on average 2.5833333333333335) internal successors, (93), 37 states have internal predecessors, (93), 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 12:31:42,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:31:42,258 INFO L93 Difference]: Finished difference Result 215 states and 242 transitions.
[2024-12-02 12:31:42,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-12-02 12:31:42,259 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.5833333333333335) internal successors, (93), 37 states have internal predecessors, (93), 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 36
[2024-12-02 12:31:42,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:31:42,259 INFO L225 Difference]: With dead ends: 215
[2024-12-02 12:31:42,259 INFO L226 Difference]: Without dead ends: 215
[2024-12-02 12:31:42,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=287, Invalid=1762, Unknown=25, NotChecked=88, Total=2162
[2024-12-02 12:31:42,260 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 262 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 165 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-12-02 12:31:42,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 694 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1321 Invalid, 0 Unknown, 165 Unchecked, 1.2s Time]
[2024-12-02 12:31:42,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states.
[2024-12-02 12:31:42,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 207.
[2024-12-02 12:31:42,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 179 states have (on average 1.2960893854748603) internal successors, (232), 205 states have internal predecessors, (232), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:31:42,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 233 transitions.
[2024-12-02 12:31:42,264 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 233 transitions. Word has length 36
[2024-12-02 12:31:42,264 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:31:42,264 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 233 transitions.
[2024-12-02 12:31:42,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.5833333333333335) internal successors, (93), 37 states have internal predecessors, (93), 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 12:31:42,264 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 233 transitions.
[2024-12-02 12:31:42,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2024-12-02 12:31:42,265 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:31:42,265 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:31:42,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-12-02 12:31:42,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20
[2024-12-02 12:31:42,465 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:31:42,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:31:42,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1371583943, now seen corresponding path program 1 times
[2024-12-02 12:31:42,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:31:42,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948464514]
[2024-12-02 12:31:42,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:31:42,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:31:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:31:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:31:43,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:31:43,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948464514]
[2024-12-02 12:31:43,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948464514] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:31:43,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570721382]
[2024-12-02 12:31:43,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:31:43,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:31:43,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:31:43,047 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:31:43,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-12-02 12:31:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:31:43,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 50 conjuncts are in the unsatisfiable core
[2024-12-02 12:31:43,181 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:31:43,375 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 12:31:43,375 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 12:31:43,393 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 8 treesize of output 1
[2024-12-02 12:31:43,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 12:31:43,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1
[2024-12-02 12:31:43,609 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:31:43,609 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45
[2024-12-02 12:31:43,614 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 24 treesize of output 11
[2024-12-02 12:31:43,817 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size
[2024-12-02 12:31:43,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24
[2024-12-02 12:31:43,822 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:31:43,823 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 16 treesize of output 11
[2024-12-02 12:31:43,855 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:31:43,855 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45
[2024-12-02 12:31:43,859 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 24 treesize of output 11
[2024-12-02 12:31:43,970 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 13
[2024-12-02 12:31:43,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3
[2024-12-02 12:31:44,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:31:44,066 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:31:44,325 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_117| Int) (v_ArrVal_1188 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~x~0#1.offset_117| 0) (< 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_1188) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_117|) 1)) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_117|))) (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_117| Int) (v_ArrVal_1188 (Array Int Int)) (v_ArrVal_1187 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~x~0#1.offset_117| 0) (< (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_1188) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_117|) 3) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_1187) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_117|))) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_117|)))) is different from false
[2024-12-02 12:31:44,617 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_117| Int) (v_ArrVal_1188 (Array Int Int)) (v_ArrVal_1187 (Array Int Int)) (v_ArrVal_1184 (Array Int Int)) (v_ArrVal_1183 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~x~0#1.offset_117| 0) (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem12#1.base| v_ArrVal_1184))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) (< (+ 3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem12#1.base| v_ArrVal_1183) .cse0 v_ArrVal_1188) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_117|)) (select |c_#length| (select (select (store .cse1 .cse0 v_ArrVal_1187) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_117|))))) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_117|))) (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_117| Int) (v_ArrVal_1188 (Array Int Int)) (v_ArrVal_1184 (Array Int Int)) (v_ArrVal_1183 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~x~0#1.offset_117| 0) (< 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem12#1.base| v_ArrVal_1183) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem12#1.base| v_ArrVal_1184) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|) v_ArrVal_1188) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_117|) 1)) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_117|)))) is different from false
[2024-12-02 12:31:44,649 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_117| Int) (v_ArrVal_1188 (Array Int Int)) (v_ArrVal_1187 (Array Int Int)) (v_ArrVal_1184 (Array Int Int)) (v_ArrVal_1183 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~x~0#1.offset_117| 0) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1184))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) (< (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1183) .cse1 v_ArrVal_1188) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_117|) 3) (select |c_#length| (select (select (store .cse2 .cse1 v_ArrVal_1187) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_117|))))) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_117|))) (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_117| Int) (v_ArrVal_1188 (Array Int Int)) (v_ArrVal_1184 (Array Int Int)) (v_ArrVal_1183 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~x~0#1.offset_117| 0) (< 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1183) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1184) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|) v_ArrVal_1188) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_117|) 1)) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_117|))))) is different from false
[2024-12-02 12:31:44,691 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:31:44,691 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 74
[2024-12-02 12:31:44,697 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:31:44,697 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 50
[2024-12-02 12:31:44,712 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:31:44,712 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 334 treesize of output 301
[2024-12-02 12:31:44,733 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:31:44,734 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 474 treesize of output 457
[2024-12-02 12:31:44,745 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 180 treesize of output 172
[2024-12-02 12:31:44,757 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:31:44,757 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 172 treesize of output 162
[2024-12-02 12:31:44,763 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 154 treesize of output 146
[2024-12-02 12:31:44,771 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 74 treesize of output 70
[2024-12-02 12:31:44,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:31:44,967 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 39
[2024-12-02 12:31:44,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:31:44,975 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31
[2024-12-02 12:31:44,979 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 12:31:44,981 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 28 treesize of output 20
[2024-12-02 12:31:44,985 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 12:31:44,987 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:31:44,988 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:31:44,989 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 10
[2024-12-02 12:31:45,348 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:31:45,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 59 treesize of output 129
[2024-12-02 12:31:45,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:31:45,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570721382] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:31:45,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 12:31:45,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 15] total 39
[2024-12-02 12:31:45,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053541268]
[2024-12-02 12:31:45,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:31:45,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states
[2024-12-02 12:31:45,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:31:45,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants.
[2024-12-02 12:31:45,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=1196, Unknown=10, NotChecked=216, Total=1560
[2024-12-02 12:31:45,582 INFO L87 Difference]: Start difference. First operand 207 states and 233 transitions. Second operand has 40 states, 39 states have (on average 2.5384615384615383) internal successors, (99), 40 states have internal predecessors, (99), 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 12:31:47,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:31:47,522 INFO L93 Difference]: Finished difference Result 216 states and 241 transitions.
[2024-12-02 12:31:47,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2024-12-02 12:31:47,523 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 2.5384615384615383) internal successors, (99), 40 states have internal predecessors, (99), 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 36
[2024-12-02 12:31:47,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:31:47,523 INFO L225 Difference]: With dead ends: 216
[2024-12-02 12:31:47,524 INFO L226 Difference]: Without dead ends: 216
[2024-12-02 12:31:47,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=340, Invalid=2418, Unknown=10, NotChecked=312, Total=3080
[2024-12-02 12:31:47,525 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 219 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 2162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 478 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-12-02 12:31:47,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 1023 Invalid, 2162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1657 Invalid, 0 Unknown, 478 Unchecked, 1.1s Time]
[2024-12-02 12:31:47,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states.
[2024-12-02 12:31:47,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 206.
[2024-12-02 12:31:47,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 178 states have (on average 1.2921348314606742) internal successors, (230), 204 states have internal predecessors, (230), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:31:47,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 231 transitions.
[2024-12-02 12:31:47,529 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 231 transitions. Word has length 36
[2024-12-02 12:31:47,529 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:31:47,529 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 231 transitions.
[2024-12-02 12:31:47,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.5384615384615383) internal successors, (99), 40 states have internal predecessors, (99), 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 12:31:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 231 transitions.
[2024-12-02 12:31:47,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2024-12-02 12:31:47,530 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:31:47,530 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:31:47,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-12-02 12:31:47,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:31:47,730 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:31:47,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:31:47,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1557290877, now seen corresponding path program 2 times
[2024-12-02 12:31:47,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:31:47,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720460289]
[2024-12-02 12:31:47,731 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 12:31:47,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:31:47,753 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 12:31:47,753 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 12:31:48,434 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:31:48,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:31:48,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720460289]
[2024-12-02 12:31:48,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720460289] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:31:48,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546419885]
[2024-12-02 12:31:48,434 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 12:31:48,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:31:48,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:31:48,436 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:31:48,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-12-02 12:31:48,553 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 12:31:48,553 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 12:31:48,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 64 conjuncts are in the unsatisfiable core
[2024-12-02 12:31:48,557 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:31:48,560 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 12:31:48,627 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-12-02 12:31:48,627 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 12:31:48,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 12:31:48,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1
[2024-12-02 12:31:48,747 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:31:48,747 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 38
[2024-12-02 12:31:48,752 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 24 treesize of output 11
[2024-12-02 12:31:48,850 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2024-12-02 12:31:48,850 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 22
[2024-12-02 12:31:48,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-12-02 12:31:48,908 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2024-12-02 12:31:48,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 58
[2024-12-02 12:31:48,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 25
[2024-12-02 12:31:49,219 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:31:49,219 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:31:49,621 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~x~0#1.base|)) (.cse4 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~x~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~x~0#1.offset| 8))) (and (forall ((v_ArrVal_1292 (Array Int Int))) (or (not (= (store .cse0 .cse1 (select v_ArrVal_1292 .cse1)) v_ArrVal_1292)) (forall ((v_ArrVal_1291 (Array Int Int))) (or (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_126| Int)) (let ((.cse2 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_1292))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) (or (= (select (select .cse2 (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_1291) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|)) .cse3) 0) (< |v_ULTIMATE.start_main_~x~0#1.offset_126| 0) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_126|) (< .cse3 0))))) (not (= (store .cse4 .cse1 (select v_ArrVal_1291 .cse1)) v_ArrVal_1291)))))) (forall ((v_ArrVal_1292 (Array Int Int))) (or (not (= (store .cse0 .cse1 (select v_ArrVal_1292 .cse1)) v_ArrVal_1292)) (forall ((v_ArrVal_1291 (Array Int Int))) (or (not (= (store .cse4 .cse1 (select v_ArrVal_1291 .cse1)) v_ArrVal_1291)) (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_126| Int)) (let ((.cse5 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_1292) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) (or (< |v_ULTIMATE.start_main_~x~0#1.offset_126| 0) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_126|) (< .cse5 0) (= (select (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_1291))) (select .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) .cse5) 0)))))))))) is different from false
[2024-12-02 12:31:49,677 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (store (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset| 0)) (.cse2 (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset| 0)) (.cse1 (+ |c_ULTIMATE.start_main_~x~0#1.offset| 8))) (and (forall ((v_ArrVal_1292 (Array Int Int))) (or (not (= v_ArrVal_1292 (store .cse0 .cse1 (select v_ArrVal_1292 .cse1)))) (forall ((v_ArrVal_1291 (Array Int Int))) (or (not (= (store .cse2 .cse1 (select v_ArrVal_1291 .cse1)) v_ArrVal_1291)) (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_126| Int)) (let ((.cse3 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_1292) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) (or (< |v_ULTIMATE.start_main_~x~0#1.offset_126| 0) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_126|) (< .cse3 0) (= (select (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_1291))) (select .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) .cse3) 0)))))))) (forall ((v_ArrVal_1292 (Array Int Int))) (or (not (= v_ArrVal_1292 (store .cse0 .cse1 (select v_ArrVal_1292 .cse1)))) (forall ((v_ArrVal_1291 (Array Int Int))) (or (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_126| Int)) (let ((.cse5 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_1292))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) (or (= (select (select .cse5 (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_1291) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|)) .cse6) 0) (< |v_ULTIMATE.start_main_~x~0#1.offset_126| 0) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_126|) (< .cse6 0))))) (not (= (store .cse2 .cse1 (select v_ArrVal_1291 .cse1)) v_ArrVal_1291)))))))) is different from false
[2024-12-02 12:31:49,732 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (store (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem5#1.base|) |c_ULTIMATE.start_main_#t~mem5#1.offset| 0)) (.cse4 (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem5#1.base|) |c_ULTIMATE.start_main_#t~mem5#1.offset| 0)) (.cse1 (+ |c_ULTIMATE.start_main_#t~mem5#1.offset| 8))) (and (forall ((v_ArrVal_1292 (Array Int Int))) (or (not (= (store .cse0 .cse1 (select v_ArrVal_1292 .cse1)) v_ArrVal_1292)) (forall ((v_ArrVal_1291 (Array Int Int))) (or (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_126| Int)) (let ((.cse2 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1292))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) (or (< |v_ULTIMATE.start_main_~x~0#1.offset_126| 0) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_126|) (= (select (select .cse2 (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1291) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|)) .cse3) 0) (< .cse3 0))))) (not (= v_ArrVal_1291 (store .cse4 .cse1 (select v_ArrVal_1291 .cse1)))))))) (forall ((v_ArrVal_1292 (Array Int Int))) (or (not (= (store .cse0 .cse1 (select v_ArrVal_1292 .cse1)) v_ArrVal_1292)) (forall ((v_ArrVal_1291 (Array Int Int))) (or (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_126| Int)) (let ((.cse6 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1292) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) (or (= (select (let ((.cse5 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1291))) (select .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) .cse6) 0) (< |v_ULTIMATE.start_main_~x~0#1.offset_126| 0) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_126|) (< .cse6 0)))) (not (= v_ArrVal_1291 (store .cse4 .cse1 (select v_ArrVal_1291 .cse1)))))))))) is different from false
[2024-12-02 12:31:49,793 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse8 (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) (let ((.cse2 (store (select |c_#memory_$Pointer$#1.base| .cse5) .cse8 0)) (.cse0 (store (select |c_#memory_$Pointer$#1.offset| .cse5) .cse8 0)) (.cse1 (+ 8 .cse8))) (and (forall ((v_ArrVal_1292 (Array Int Int))) (or (not (= v_ArrVal_1292 (store .cse0 .cse1 (select v_ArrVal_1292 .cse1)))) (forall ((v_ArrVal_1291 (Array Int Int))) (or (not (= (store .cse2 .cse1 (select v_ArrVal_1291 .cse1)) v_ArrVal_1291)) (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_126| Int)) (let ((.cse4 (store |c_#memory_$Pointer$#1.offset| .cse5 v_ArrVal_1292))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) (or (< .cse3 0) (< |v_ULTIMATE.start_main_~x~0#1.offset_126| 0) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_126|) (= 0 (select (select .cse4 (select (select (store |c_#memory_$Pointer$#1.base| .cse5 v_ArrVal_1291) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|)) .cse3)))))))))) (forall ((v_ArrVal_1292 (Array Int Int))) (or (forall ((v_ArrVal_1291 (Array Int Int))) (or (not (= (store .cse2 .cse1 (select v_ArrVal_1291 .cse1)) v_ArrVal_1291)) (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_126| Int)) (let ((.cse6 (select (select (store |c_#memory_$Pointer$#1.offset| .cse5 v_ArrVal_1292) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) (or (< .cse6 0) (< |v_ULTIMATE.start_main_~x~0#1.offset_126| 0) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_126|) (= 0 (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| .cse5 v_ArrVal_1291))) (select .cse7 (select (select .cse7 |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) .cse6))))))) (not (= v_ArrVal_1292 (store .cse0 .cse1 (select v_ArrVal_1292 .cse1))))))))) is different from false
[2024-12-02 12:31:49,903 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1287 (Array Int Int)) (v_ArrVal_1285 (Array Int Int)) (v_ArrVal_1292 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_1287))) (let ((.cse2 (select (select .cse0 |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_1285))) (let ((.cse1 (select (select .cse6 |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse3 (+ .cse2 8))) (or (not (= (store (store (select .cse0 .cse1) .cse2 0) .cse3 (select v_ArrVal_1292 .cse3)) v_ArrVal_1292)) (forall ((v_ArrVal_1291 (Array Int Int))) (or (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_126| Int)) (let ((.cse5 (store .cse0 .cse1 v_ArrVal_1292))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) (or (< .cse4 0) (< |v_ULTIMATE.start_main_~x~0#1.offset_126| 0) (= (select (select .cse5 (select (select (store .cse6 .cse1 v_ArrVal_1291) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|)) .cse4) 0) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_126|))))) (not (= v_ArrVal_1291 (store (store (select .cse6 .cse1) .cse2 0) .cse3 (select v_ArrVal_1291 .cse3))))))))))) (forall ((v_ArrVal_1287 (Array Int Int)) (v_ArrVal_1285 (Array Int Int)) (v_ArrVal_1292 (Array Int Int))) (let ((.cse11 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_1287))) (let ((.cse12 (select (select .cse11 |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse9 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_1285))) (let ((.cse10 (select (select .cse9 |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse13 (+ .cse12 8))) (or (forall ((v_ArrVal_1291 (Array Int Int))) (or (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_126| Int)) (let ((.cse7 (select (select (store .cse11 .cse10 v_ArrVal_1292) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) (or (< .cse7 0) (= (select (let ((.cse8 (store .cse9 .cse10 v_ArrVal_1291))) (select .cse8 (select (select .cse8 |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) .cse7) 0) (< |v_ULTIMATE.start_main_~x~0#1.offset_126| 0) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_126|)))) (not (= v_ArrVal_1291 (store (store (select .cse9 .cse10) .cse12 0) .cse13 (select v_ArrVal_1291 .cse13)))))) (not (= (store (store (select .cse11 .cse10) .cse12 0) .cse13 (select v_ArrVal_1292 .cse13)) v_ArrVal_1292)))))))) is different from false
[2024-12-02 12:31:49,976 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse7 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) (and (forall ((v_ArrVal_1287 (Array Int Int)) (v_ArrVal_1285 (Array Int Int)) (v_ArrVal_1292 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$#1.offset| .cse7 v_ArrVal_1287))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| .cse7 v_ArrVal_1285)) (.cse2 (select (select .cse0 |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) (let ((.cse3 (+ .cse2 8)) (.cse1 (select (select .cse4 |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) (or (not (= (store (store (select .cse0 .cse1) .cse2 0) .cse3 (select v_ArrVal_1292 .cse3)) v_ArrVal_1292)) (forall ((v_ArrVal_1291 (Array Int Int))) (or (not (= v_ArrVal_1291 (store (store (select .cse4 .cse1) .cse2 0) .cse3 (select v_ArrVal_1291 .cse3)))) (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_126| Int)) (let ((.cse5 (select (select (store .cse0 .cse1 v_ArrVal_1292) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) (or (< |v_ULTIMATE.start_main_~x~0#1.offset_126| 0) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_126|) (< .cse5 0) (= (select (let ((.cse6 (store .cse4 .cse1 v_ArrVal_1291))) (select .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) .cse5) 0))))))))))) (forall ((v_ArrVal_1287 (Array Int Int)) (v_ArrVal_1285 (Array Int Int)) (v_ArrVal_1292 (Array Int Int))) (let ((.cse8 (store |c_#memory_$Pointer$#1.offset| .cse7 v_ArrVal_1287))) (let ((.cse12 (store |c_#memory_$Pointer$#1.base| .cse7 v_ArrVal_1285)) (.cse10 (select (select .cse8 |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) (let ((.cse11 (+ .cse10 8)) (.cse9 (select (select .cse12 |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) (or (not (= (store (store (select .cse8 .cse9) .cse10 0) .cse11 (select v_ArrVal_1292 .cse11)) v_ArrVal_1292)) (forall ((v_ArrVal_1291 (Array Int Int))) (or (not (= v_ArrVal_1291 (store (store (select .cse12 .cse9) .cse10 0) .cse11 (select v_ArrVal_1291 .cse11)))) (forall ((|v_ULTIMATE.start_main_~x~0#1.offset_126| Int)) (let ((.cse14 (store .cse8 .cse9 v_ArrVal_1292))) (let ((.cse13 (select (select .cse14 |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|))) (or (< |v_ULTIMATE.start_main_~x~0#1.offset_126| 0) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_126|) (< .cse13 0) (= 0 (select (select .cse14 (select (select (store .cse12 .cse9 v_ArrVal_1291) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_126|)) .cse13))))))))))))))) is different from false
[2024-12-02 12:31:50,060 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:31:50,061 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 317 treesize of output 245
[2024-12-02 12:31:50,068 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:31:50,068 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 237 treesize of output 181
[2024-12-02 12:31:50,122 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:31:50,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 1039 treesize of output 1027
[2024-12-02 12:31:50,160 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:31:50,325 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:31:50,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 5147 treesize of output 4969
[2024-12-02 12:31:50,439 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 12:31:51,267 INFO L349 Elim1Store]: treesize reduction 399, result has 46.1 percent of original size
[2024-12-02 12:31:51,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 24 case distinctions, treesize of input 1007 treesize of output 1299
[2024-12-02 12:31:51,428 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-12-02 12:31:51,713 INFO L349 Elim1Store]: treesize reduction 144, result has 46.9 percent of original size
[2024-12-02 12:31:51,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 968 treesize of output 1018
[2024-12-02 12:34:09,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101
[2024-12-02 12:34:09,237 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory")
[2024-12-02 12:34:09,239 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception
[2024-12-02 12:34:09,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-12-02 12:34:09,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:09,442 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:147)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:111)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:584)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.<init>(TraceCheckSpWp.java:160)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:82)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:140)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701)
at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258)
... 61 more
[2024-12-02 12:34:09,452 INFO L158 Benchmark]: Toolchain (without parser) took 794080.78ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 91.7MB in the beginning and 256.0MB in the end (delta: -164.3MB). Peak memory consumption was 328.7MB. Max. memory is 16.1GB.
[2024-12-02 12:34:09,452 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 71.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 12:34:09,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.99ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 73.8MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 12:34:09,454 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.35ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 72.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 12:34:09,455 INFO L158 Benchmark]: Boogie Preprocessor took 60.61ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 69.6MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 12:34:09,456 INFO L158 Benchmark]: RCFGBuilder took 660.63ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 42.0MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-12-02 12:34:09,456 INFO L158 Benchmark]: TraceAbstraction took 792959.91ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 41.4MB in the beginning and 256.0MB in the end (delta: -214.6MB). Peak memory consumption was 278.4MB. Max. memory is 16.1GB.
[2024-12-02 12:34:09,461 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 71.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 350.99ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 73.8MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 43.35ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 72.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 60.61ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 69.6MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 660.63ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 42.0MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* TraceAbstraction took 792959.91ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 41.4MB in the beginning and 256.0MB in the end (delta: -214.6MB). Peak memory consumption was 278.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/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_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/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 32bit --witnessprinter.graph.data.programhash 52fc70d7844651686a4c27e057f507f0498e7d5f7c17f07a035699d1630f6ea2
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 12:34:11,427 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 12:34:11,515 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2024-12-02 12:34:11,522 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 12:34:11,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 12:34:11,548 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 12:34:11,548 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 12:34:11,549 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 12:34:11,549 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 12:34:11,549 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 12:34:11,549 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 12:34:11,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 12:34:11,550 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 12:34:11,550 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 12:34:11,550 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 12:34:11,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 12:34:11,550 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 12:34:11,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 12:34:11,551 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 12:34:11,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 12:34:11,551 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-12-02 12:34:11,551 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-12-02 12:34:11,551 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-12-02 12:34:11,551 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 12:34:11,551 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 12:34:11,551 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-12-02 12:34:11,551 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-12-02 12:34:11,551 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 12:34:11,551 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 12:34:11,551 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 12:34:11,551 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 12:34:11,552 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 12:34:11,552 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 12:34:11,552 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:34:11,552 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 12:34:11,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:34:11,552 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 12:34:11,552 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 12:34:11,552 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:34:11,552 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 12:34:11,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:34:11,553 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 12:34:11,553 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 12:34:11,554 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-12-02 12:34:11,554 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-12-02 12:34:11,554 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 12:34:11,554 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 12:34:11,554 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 12:34:11,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 12:34:11,554 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_1be3212c-ac08-4cf0-867a-b99818a35d53/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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52fc70d7844651686a4c27e057f507f0498e7d5f7c17f07a035699d1630f6ea2
[2024-12-02 12:34:11,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 12:34:11,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 12:34:11,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 12:34:11,851 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 12:34:11,852 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 12:34:11,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/forester-heap/dll-reverse.i
[2024-12-02 12:34:14,650 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/data/884098fb5/ef03e4371f7741b6bff8534df343bb2c/FLAG1c25e4fc2
[2024-12-02 12:34:14,873 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 12:34:14,873 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/sv-benchmarks/c/forester-heap/dll-reverse.i
[2024-12-02 12:34:14,886 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/data/884098fb5/ef03e4371f7741b6bff8534df343bb2c/FLAG1c25e4fc2
[2024-12-02 12:34:14,901 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/data/884098fb5/ef03e4371f7741b6bff8534df343bb2c
[2024-12-02 12:34:14,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 12:34:14,905 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 12:34:14,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 12:34:14,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 12:34:14,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 12:34:14,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:34:14" (1/1) ...
[2024-12-02 12:34:14,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f3bfc1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:34:14, skipping insertion in model container
[2024-12-02 12:34:14,911 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:34:14" (1/1) ...
[2024-12-02 12:34:14,942 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 12:34:15,208 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:34:15,221 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 12:34:15,278 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:34:15,307 INFO L204 MainTranslator]: Completed translation
[2024-12-02 12:34:15,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:34:15 WrapperNode
[2024-12-02 12:34:15,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 12:34:15,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 12:34:15,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 12:34:15,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 12:34:15,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:34:15" (1/1) ...
[2024-12-02 12:34:15,330 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:34:15" (1/1) ...
[2024-12-02 12:34:15,354 INFO L138 Inliner]: procedures = 122, calls = 44, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 137
[2024-12-02 12:34:15,355 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 12:34:15,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 12:34:15,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 12:34:15,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 12:34:15,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:34:15" (1/1) ...
[2024-12-02 12:34:15,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:34:15" (1/1) ...
[2024-12-02 12:34:15,368 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:34:15" (1/1) ...
[2024-12-02 12:34:15,386 INFO L175 MemorySlicer]: Split 33 memory accesses to 2 slices as follows [2, 31]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 15 writes are split as follows [0, 15].
[2024-12-02 12:34:15,386 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:34:15" (1/1) ...
[2024-12-02 12:34:15,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:34:15" (1/1) ...
[2024-12-02 12:34:15,398 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:34:15" (1/1) ...
[2024-12-02 12:34:15,399 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:34:15" (1/1) ...
[2024-12-02 12:34:15,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:34:15" (1/1) ...
[2024-12-02 12:34:15,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:34:15" (1/1) ...
[2024-12-02 12:34:15,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:34:15" (1/1) ...
[2024-12-02 12:34:15,410 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 12:34:15,411 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 12:34:15,411 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 12:34:15,411 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 12:34:15,412 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:34:15" (1/1) ...
[2024-12-02 12:34:15,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:34:15,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:15,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 12:34:15,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 12:34:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2024-12-02 12:34:15,470 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2024-12-02 12:34:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-12-02 12:34:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-12-02 12:34:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-12-02 12:34:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 12:34:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-12-02 12:34:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-12-02 12:34:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-12-02 12:34:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-12-02 12:34:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 12:34:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-12-02 12:34:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-12-02 12:34:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-12-02 12:34:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-12-02 12:34:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 12:34:15,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 12:34:15,600 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 12:34:15,602 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 12:34:16,224 INFO L? ?]: Removed 150 outVars from TransFormulas that were not future-live.
[2024-12-02 12:34:16,225 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 12:34:16,239 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 12:34:16,239 INFO L312 CfgBuilder]: Removed 8 assume(true) statements.
[2024-12-02 12:34:16,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:34:16 BoogieIcfgContainer
[2024-12-02 12:34:16,240 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 12:34:16,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 12:34:16,242 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 12:34:16,248 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 12:34:16,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:34:14" (1/3) ...
[2024-12-02 12:34:16,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eddbdae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:34:16, skipping insertion in model container
[2024-12-02 12:34:16,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:34:15" (2/3) ...
[2024-12-02 12:34:16,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eddbdae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:34:16, skipping insertion in model container
[2024-12-02 12:34:16,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:34:16" (3/3) ...
[2024-12-02 12:34:16,251 INFO L128 eAbstractionObserver]: Analyzing ICFG dll-reverse.i
[2024-12-02 12:34:16,267 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 12:34:16,269 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG dll-reverse.i that has 2 procedures, 155 locations, 1 initial locations, 8 loop locations, and 67 error locations.
[2024-12-02 12:34:16,318 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 12:34:16,331 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;@e5d507b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 12:34:16,331 INFO L334 AbstractCegarLoop]: Starting to check reachability of 67 error locations.
[2024-12-02 12:34:16,335 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 83 states have (on average 2.0963855421686746) internal successors, (174), 150 states have internal predecessors, (174), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-02 12:34:16,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-12-02 12:34:16,340 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:16,340 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-12-02 12:34:16,341 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:16,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:16,346 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times
[2024-12-02 12:34:16,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:16,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1755031900]
[2024-12-02 12:34:16,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:16,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:16,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:16,358 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:16,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 12:34:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:16,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:16,439 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:16,486 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 12:34:16,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:34:16,508 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:34:16,508 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:34:16,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755031900]
[2024-12-02 12:34:16,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755031900] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:34:16,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:34:16,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 12:34:16,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743782242]
[2024-12-02 12:34:16,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:34:16,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 12:34:16,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:34:16,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 12:34:16,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 12:34:16,538 INFO L87 Difference]: Start difference. First operand has 155 states, 83 states have (on average 2.0963855421686746) internal successors, (174), 150 states have internal predecessors, (174), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 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 12:34:16,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:34:16,861 INFO L93 Difference]: Finished difference Result 147 states and 157 transitions.
[2024-12-02 12:34:16,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 12:34:16,864 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 12:34:16,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:34:16,870 INFO L225 Difference]: With dead ends: 147
[2024-12-02 12:34:16,871 INFO L226 Difference]: Without dead ends: 145
[2024-12-02 12:34:16,872 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 12:34:16,875 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 81 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 12:34:16,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 147 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 12:34:16,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states.
[2024-12-02 12:34:16,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145.
[2024-12-02 12:34:16,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 78 states have (on average 1.9487179487179487) internal successors, (152), 143 states have internal predecessors, (152), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:16,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 155 transitions.
[2024-12-02 12:34:16,912 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 155 transitions. Word has length 3
[2024-12-02 12:34:16,912 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:34:16,912 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 155 transitions.
[2024-12-02 12:34:16,913 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 12:34:16,913 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 155 transitions.
[2024-12-02 12:34:16,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-12-02 12:34:16,913 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:16,913 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-12-02 12:34:16,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 12:34:17,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:17,114 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:17,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:17,114 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times
[2024-12-02 12:34:17,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:17,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1421565303]
[2024-12-02 12:34:17,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:17,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:17,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:17,117 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:17,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 12:34:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:17,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:17,167 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:17,176 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 12:34:17,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:34:17,191 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:34:17,191 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:34:17,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421565303]
[2024-12-02 12:34:17,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421565303] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:34:17,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:34:17,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 12:34:17,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957959637]
[2024-12-02 12:34:17,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:34:17,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 12:34:17,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:34:17,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 12:34:17,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 12:34:17,194 INFO L87 Difference]: Start difference. First operand 145 states and 155 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 12:34:17,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:34:17,526 INFO L93 Difference]: Finished difference Result 142 states and 152 transitions.
[2024-12-02 12:34:17,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 12:34:17,527 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 12:34:17,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:34:17,528 INFO L225 Difference]: With dead ends: 142
[2024-12-02 12:34:17,528 INFO L226 Difference]: Without dead ends: 142
[2024-12-02 12:34:17,528 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 12:34:17,529 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 81 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 12:34:17,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 143 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 12:34:17,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states.
[2024-12-02 12:34:17,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142.
[2024-12-02 12:34:17,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 78 states have (on average 1.9102564102564104) internal successors, (149), 140 states have internal predecessors, (149), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:17,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 152 transitions.
[2024-12-02 12:34:17,538 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 152 transitions. Word has length 3
[2024-12-02 12:34:17,538 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:34:17,538 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 152 transitions.
[2024-12-02 12:34:17,539 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 12:34:17,539 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 152 transitions.
[2024-12-02 12:34:17,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-12-02 12:34:17,539 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:17,539 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:34:17,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 12:34:17,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:17,740 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:17,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:17,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1570703282, now seen corresponding path program 1 times
[2024-12-02 12:34:17,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:17,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [552498861]
[2024-12-02 12:34:17,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:17,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:17,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:17,743 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:17,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 12:34:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:17,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:17,818 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:17,823 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 12:34:17,907 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size
[2024-12-02 12:34:17,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20
[2024-12-02 12:34:17,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:34:17,917 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:34:17,917 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:34:17,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552498861]
[2024-12-02 12:34:17,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552498861] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:34:17,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:34:17,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 12:34:17,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025228770]
[2024-12-02 12:34:17,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:34:17,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 12:34:17,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:34:17,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 12:34:17,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 12:34:17,919 INFO L87 Difference]: Start difference. First operand 142 states and 152 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 12:34:18,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:34:18,342 INFO L93 Difference]: Finished difference Result 129 states and 143 transitions.
[2024-12-02 12:34:18,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:34:18,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10
[2024-12-02 12:34:18,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:34:18,344 INFO L225 Difference]: With dead ends: 129
[2024-12-02 12:34:18,344 INFO L226 Difference]: Without dead ends: 129
[2024-12-02 12:34:18,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:34:18,345 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 118 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 12:34:18,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 100 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 12:34:18,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states.
[2024-12-02 12:34:18,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129.
[2024-12-02 12:34:18,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 82 states have (on average 1.7073170731707317) internal successors, (140), 127 states have internal predecessors, (140), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:18,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 143 transitions.
[2024-12-02 12:34:18,353 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 143 transitions. Word has length 10
[2024-12-02 12:34:18,353 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:34:18,353 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 143 transitions.
[2024-12-02 12:34:18,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 12:34:18,354 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 143 transitions.
[2024-12-02 12:34:18,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-12-02 12:34:18,354 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:18,354 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:34:18,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 12:34:18,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:18,555 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:18,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:18,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1570703281, now seen corresponding path program 1 times
[2024-12-02 12:34:18,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:18,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523278307]
[2024-12-02 12:34:18,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:18,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:18,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:18,558 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:18,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 12:34:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:18,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:18,627 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:18,638 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 12:34:18,645 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 12:34:18,803 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:34:18,804 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 14 treesize of output 9
[2024-12-02 12:34:18,815 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 12:34:18,815 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 12:34:18,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:34:18,830 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:34:18,830 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:34:18,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523278307]
[2024-12-02 12:34:18,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523278307] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:34:18,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:34:18,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:34:18,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223234162]
[2024-12-02 12:34:18,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:34:18,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 12:34:18,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:34:18,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 12:34:18,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:34:18,831 INFO L87 Difference]: Start difference. First operand 129 states and 143 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 12:34:19,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:34:19,427 INFO L93 Difference]: Finished difference Result 167 states and 185 transitions.
[2024-12-02 12:34:19,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:34:19,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10
[2024-12-02 12:34:19,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:34:19,428 INFO L225 Difference]: With dead ends: 167
[2024-12-02 12:34:19,428 INFO L226 Difference]: Without dead ends: 167
[2024-12-02 12:34:19,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-12-02 12:34:19,429 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 138 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-12-02 12:34:19,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 166 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-12-02 12:34:19,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states.
[2024-12-02 12:34:19,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 159.
[2024-12-02 12:34:19,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 112 states have (on average 1.5892857142857142) internal successors, (178), 157 states have internal predecessors, (178), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:19,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 181 transitions.
[2024-12-02 12:34:19,434 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 181 transitions. Word has length 10
[2024-12-02 12:34:19,434 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:34:19,434 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 181 transitions.
[2024-12-02 12:34:19,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 12:34:19,434 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 181 transitions.
[2024-12-02 12:34:19,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-12-02 12:34:19,435 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:19,435 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:34:19,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-12-02 12:34:19,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:19,636 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:19,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:19,636 INFO L85 PathProgramCache]: Analyzing trace with hash 847221851, now seen corresponding path program 1 times
[2024-12-02 12:34:19,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:19,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1267301322]
[2024-12-02 12:34:19,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:19,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:19,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:19,638 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:19,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-12-02 12:34:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:19,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:19,705 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:19,713 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 12:34:19,733 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 1
[2024-12-02 12:34:19,754 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 19 treesize of output 11
[2024-12-02 12:34:19,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:34:19,764 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:34:19,764 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:34:19,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267301322]
[2024-12-02 12:34:19,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267301322] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:34:19,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:34:19,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:34:19,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431289790]
[2024-12-02 12:34:19,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:34:19,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 12:34:19,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:34:19,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 12:34:19,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:34:19,766 INFO L87 Difference]: Start difference. First operand 159 states and 181 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 12:34:20,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:34:20,158 INFO L93 Difference]: Finished difference Result 158 states and 179 transitions.
[2024-12-02 12:34:20,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:34:20,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 13
[2024-12-02 12:34:20,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:34:20,160 INFO L225 Difference]: With dead ends: 158
[2024-12-02 12:34:20,160 INFO L226 Difference]: Without dead ends: 158
[2024-12-02 12:34:20,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 12:34:20,161 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 4 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 12:34:20,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 326 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 12:34:20,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states.
[2024-12-02 12:34:20,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158.
[2024-12-02 12:34:20,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 112 states have (on average 1.5714285714285714) internal successors, (176), 156 states have internal predecessors, (176), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:20,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 179 transitions.
[2024-12-02 12:34:20,168 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 179 transitions. Word has length 13
[2024-12-02 12:34:20,168 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:34:20,168 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 179 transitions.
[2024-12-02 12:34:20,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 12:34:20,169 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 179 transitions.
[2024-12-02 12:34:20,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-12-02 12:34:20,169 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:20,169 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:34:20,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-12-02 12:34:20,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:20,370 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:20,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:20,371 INFO L85 PathProgramCache]: Analyzing trace with hash 847221852, now seen corresponding path program 1 times
[2024-12-02 12:34:20,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:20,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [975203114]
[2024-12-02 12:34:20,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:20,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:20,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:20,373 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:20,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-12-02 12:34:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:20,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:20,440 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:20,446 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 12:34:20,472 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 1
[2024-12-02 12:34:20,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 12:34:20,523 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 9
[2024-12-02 12:34:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:34:20,545 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:34:20,545 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:34:20,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975203114]
[2024-12-02 12:34:20,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975203114] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:34:20,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:34:20,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:34:20,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86966468]
[2024-12-02 12:34:20,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:34:20,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 12:34:20,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:34:20,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 12:34:20,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:34:20,546 INFO L87 Difference]: Start difference. First operand 158 states and 179 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 12:34:21,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:34:21,039 INFO L93 Difference]: Finished difference Result 157 states and 177 transitions.
[2024-12-02 12:34:21,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:34:21,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 13
[2024-12-02 12:34:21,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:34:21,040 INFO L225 Difference]: With dead ends: 157
[2024-12-02 12:34:21,040 INFO L226 Difference]: Without dead ends: 157
[2024-12-02 12:34:21,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 12:34:21,041 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 2 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 12:34:21,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 308 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 12:34:21,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states.
[2024-12-02 12:34:21,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157.
[2024-12-02 12:34:21,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 112 states have (on average 1.5535714285714286) internal successors, (174), 155 states have internal predecessors, (174), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:21,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 177 transitions.
[2024-12-02 12:34:21,049 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 177 transitions. Word has length 13
[2024-12-02 12:34:21,049 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:34:21,049 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 177 transitions.
[2024-12-02 12:34:21,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 12:34:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 177 transitions.
[2024-12-02 12:34:21,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-12-02 12:34:21,050 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:21,050 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:34:21,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-12-02 12:34:21,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:21,251 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:21,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:21,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1010414564, now seen corresponding path program 1 times
[2024-12-02 12:34:21,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:21,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [198932606]
[2024-12-02 12:34:21,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:21,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:21,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:21,253 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:21,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-12-02 12:34:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:21,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:21,314 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:21,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:34:21,343 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:34:21,343 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:34:21,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198932606]
[2024-12-02 12:34:21,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198932606] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:34:21,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:34:21,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:34:21,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003267133]
[2024-12-02 12:34:21,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:34:21,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 12:34:21,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:34:21,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 12:34:21,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 12:34:21,344 INFO L87 Difference]: Start difference. First operand 157 states and 177 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:21,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:34:21,704 INFO L93 Difference]: Finished difference Result 161 states and 176 transitions.
[2024-12-02 12:34:21,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:34:21,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2024-12-02 12:34:21,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:34:21,705 INFO L225 Difference]: With dead ends: 161
[2024-12-02 12:34:21,705 INFO L226 Difference]: Without dead ends: 161
[2024-12-02 12:34:21,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:34:21,706 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 127 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 12:34:21,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 206 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 12:34:21,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states.
[2024-12-02 12:34:21,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 157.
[2024-12-02 12:34:21,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 112 states have (on average 1.5267857142857142) internal successors, (171), 155 states have internal predecessors, (171), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:21,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 174 transitions.
[2024-12-02 12:34:21,712 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 174 transitions. Word has length 17
[2024-12-02 12:34:21,712 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:34:21,712 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 174 transitions.
[2024-12-02 12:34:21,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:21,712 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 174 transitions.
[2024-12-02 12:34:21,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-12-02 12:34:21,713 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:21,713 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:34:21,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-12-02 12:34:21,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:21,914 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:21,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:21,914 INFO L85 PathProgramCache]: Analyzing trace with hash 94244445, now seen corresponding path program 1 times
[2024-12-02 12:34:21,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:21,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781720371]
[2024-12-02 12:34:21,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:21,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:21,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:21,916 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:21,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-12-02 12:34:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:21,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:21,995 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:21,999 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 12:34:22,061 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size
[2024-12-02 12:34:22,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27
[2024-12-02 12:34:22,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1
[2024-12-02 12:34:22,234 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:34:22,234 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35
[2024-12-02 12:34:22,271 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 15
[2024-12-02 12:34:22,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:34:22,363 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:34:22,363 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:34:22,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781720371]
[2024-12-02 12:34:22,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781720371] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:34:22,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:34:22,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-12-02 12:34:22,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703638612]
[2024-12-02 12:34:22,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:34:22,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 12:34:22,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:34:22,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 12:34:22,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-12-02 12:34:22,365 INFO L87 Difference]: Start difference. First operand 157 states and 174 transitions. Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:23,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:34:23,321 INFO L93 Difference]: Finished difference Result 170 states and 190 transitions.
[2024-12-02 12:34:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-12-02 12:34:23,322 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2024-12-02 12:34:23,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:34:23,323 INFO L225 Difference]: With dead ends: 170
[2024-12-02 12:34:23,323 INFO L226 Difference]: Without dead ends: 170
[2024-12-02 12:34:23,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210
[2024-12-02 12:34:23,324 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 133 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-12-02 12:34:23,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 251 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-12-02 12:34:23,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states.
[2024-12-02 12:34:23,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 156.
[2024-12-02 12:34:23,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 112 states have (on average 1.5178571428571428) internal successors, (170), 154 states have internal predecessors, (170), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:23,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 173 transitions.
[2024-12-02 12:34:23,330 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 173 transitions. Word has length 17
[2024-12-02 12:34:23,330 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:34:23,330 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 173 transitions.
[2024-12-02 12:34:23,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:23,330 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 173 transitions.
[2024-12-02 12:34:23,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-12-02 12:34:23,331 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:23,331 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:34:23,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-12-02 12:34:23,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:23,531 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:23,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:23,532 INFO L85 PathProgramCache]: Analyzing trace with hash 94244446, now seen corresponding path program 1 times
[2024-12-02 12:34:23,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:23,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1468675301]
[2024-12-02 12:34:23,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:23,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:23,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:23,534 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:23,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-12-02 12:34:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:23,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:23,624 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:23,663 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 12:34:23,664 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 12:34:23,672 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 5
[2024-12-02 12:34:23,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 12:34:23,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1
[2024-12-02 12:34:23,817 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:34:23,817 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45
[2024-12-02 12:34:23,827 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 24 treesize of output 11
[2024-12-02 12:34:23,861 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 13
[2024-12-02 12:34:23,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3
[2024-12-02 12:34:23,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:34:23,905 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:34:23,905 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:34:23,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468675301]
[2024-12-02 12:34:23,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468675301] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:34:23,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:34:23,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-12-02 12:34:23,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220782110]
[2024-12-02 12:34:23,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:34:23,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 12:34:23,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:34:23,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 12:34:23,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2024-12-02 12:34:23,906 INFO L87 Difference]: Start difference. First operand 156 states and 173 transitions. Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:24,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:34:24,886 INFO L93 Difference]: Finished difference Result 152 states and 169 transitions.
[2024-12-02 12:34:24,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-12-02 12:34:24,886 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2024-12-02 12:34:24,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:34:24,887 INFO L225 Difference]: With dead ends: 152
[2024-12-02 12:34:24,887 INFO L226 Difference]: Without dead ends: 152
[2024-12-02 12:34:24,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342
[2024-12-02 12:34:24,888 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 117 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-12-02 12:34:24,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 287 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-12-02 12:34:24,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states.
[2024-12-02 12:34:24,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 142.
[2024-12-02 12:34:24,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 103 states have (on average 1.5048543689320388) internal successors, (155), 140 states have internal predecessors, (155), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:24,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 158 transitions.
[2024-12-02 12:34:24,891 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 158 transitions. Word has length 17
[2024-12-02 12:34:24,892 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:34:24,892 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 158 transitions.
[2024-12-02 12:34:24,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:24,892 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 158 transitions.
[2024-12-02 12:34:24,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2024-12-02 12:34:24,893 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:24,893 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:34:24,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-12-02 12:34:25,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:25,093 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:25,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:25,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1259925439, now seen corresponding path program 1 times
[2024-12-02 12:34:25,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:25,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2127785951]
[2024-12-02 12:34:25,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:25,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:25,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:25,096 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:25,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-12-02 12:34:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:25,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:25,177 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:25,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 12:34:25,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 12:34:25,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20
[2024-12-02 12:34:25,221 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 11
[2024-12-02 12:34:25,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:34:25,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23
[2024-12-02 12:34:25,270 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 11
[2024-12-02 12:34:25,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:34:25,376 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:34:25,376 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:34:25,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127785951]
[2024-12-02 12:34:25,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127785951] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:34:25,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:34:25,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-12-02 12:34:25,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929700292]
[2024-12-02 12:34:25,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:34:25,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 12:34:25,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:34:25,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 12:34:25,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-12-02 12:34:25,377 INFO L87 Difference]: Start difference. First operand 142 states and 158 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 12:34:25,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:34:25,900 INFO L93 Difference]: Finished difference Result 160 states and 178 transitions.
[2024-12-02 12:34:25,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 12:34:25,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 18
[2024-12-02 12:34:25,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:34:25,901 INFO L225 Difference]: With dead ends: 160
[2024-12-02 12:34:25,901 INFO L226 Difference]: Without dead ends: 160
[2024-12-02 12:34:25,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90
[2024-12-02 12:34:25,902 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 32 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 12:34:25,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 468 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 12:34:25,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states.
[2024-12-02 12:34:25,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 150.
[2024-12-02 12:34:25,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 111 states have (on average 1.4774774774774775) internal successors, (164), 148 states have internal predecessors, (164), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:25,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 167 transitions.
[2024-12-02 12:34:25,907 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 167 transitions. Word has length 18
[2024-12-02 12:34:25,907 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:34:25,907 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 167 transitions.
[2024-12-02 12:34:25,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 12:34:25,907 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 167 transitions.
[2024-12-02 12:34:25,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2024-12-02 12:34:25,907 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:25,907 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:34:25,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-12-02 12:34:26,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:26,108 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:26,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:26,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1662329312, now seen corresponding path program 1 times
[2024-12-02 12:34:26,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:26,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [621669309]
[2024-12-02 12:34:26,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:26,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:26,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:26,110 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:26,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-12-02 12:34:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:26,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:26,179 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:26,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11
[2024-12-02 12:34:26,269 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 11
[2024-12-02 12:34:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:34:26,291 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:34:26,291 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:34:26,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621669309]
[2024-12-02 12:34:26,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621669309] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:34:26,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:34:26,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 12:34:26,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072513467]
[2024-12-02 12:34:26,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:34:26,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 12:34:26,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:34:26,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 12:34:26,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-12-02 12:34:26,292 INFO L87 Difference]: Start difference. First operand 150 states and 167 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 12:34:26,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:34:26,838 INFO L93 Difference]: Finished difference Result 165 states and 186 transitions.
[2024-12-02 12:34:26,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 12:34:26,838 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 20
[2024-12-02 12:34:26,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:34:26,839 INFO L225 Difference]: With dead ends: 165
[2024-12-02 12:34:26,839 INFO L226 Difference]: Without dead ends: 165
[2024-12-02 12:34:26,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-12-02 12:34:26,840 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 8 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 12:34:26,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 377 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 12:34:26,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states.
[2024-12-02 12:34:26,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 160.
[2024-12-02 12:34:26,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 121 states have (on average 1.462809917355372) internal successors, (177), 158 states have internal predecessors, (177), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:26,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 180 transitions.
[2024-12-02 12:34:26,843 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 180 transitions. Word has length 20
[2024-12-02 12:34:26,843 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:34:26,844 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 180 transitions.
[2024-12-02 12:34:26,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 12:34:26,844 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 180 transitions.
[2024-12-02 12:34:26,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-12-02 12:34:26,844 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:26,844 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:34:26,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-12-02 12:34:27,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:27,045 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:27,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:27,045 INFO L85 PathProgramCache]: Analyzing trace with hash 207420364, now seen corresponding path program 1 times
[2024-12-02 12:34:27,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:27,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1314116539]
[2024-12-02 12:34:27,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:27,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:27,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:27,047 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:27,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-12-02 12:34:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:27,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:27,130 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:27,135 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 12:34:27,149 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 1
[2024-12-02 12:34:27,168 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 19 treesize of output 11
[2024-12-02 12:34:27,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:34:27,178 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:34:27,178 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:34:27,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314116539]
[2024-12-02 12:34:27,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314116539] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:34:27,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:34:27,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:34:27,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699680154]
[2024-12-02 12:34:27,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:34:27,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 12:34:27,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:34:27,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 12:34:27,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:34:27,180 INFO L87 Difference]: Start difference. First operand 160 states and 180 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:27,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:34:27,577 INFO L93 Difference]: Finished difference Result 159 states and 178 transitions.
[2024-12-02 12:34:27,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:34:27,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22
[2024-12-02 12:34:27,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:34:27,579 INFO L225 Difference]: With dead ends: 159
[2024-12-02 12:34:27,579 INFO L226 Difference]: Without dead ends: 159
[2024-12-02 12:34:27,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 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 12:34:27,579 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 4 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 12:34:27,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 305 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 12:34:27,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states.
[2024-12-02 12:34:27,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159.
[2024-12-02 12:34:27,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 121 states have (on average 1.4462809917355373) internal successors, (175), 157 states have internal predecessors, (175), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:27,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 178 transitions.
[2024-12-02 12:34:27,583 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 178 transitions. Word has length 22
[2024-12-02 12:34:27,583 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:34:27,583 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 178 transitions.
[2024-12-02 12:34:27,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:27,583 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 178 transitions.
[2024-12-02 12:34:27,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-12-02 12:34:27,584 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:27,584 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:34:27,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-12-02 12:34:27,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:27,784 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:27,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:27,784 INFO L85 PathProgramCache]: Analyzing trace with hash 207420365, now seen corresponding path program 1 times
[2024-12-02 12:34:27,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:27,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1320293258]
[2024-12-02 12:34:27,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:27,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:27,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:27,786 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:27,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-12-02 12:34:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:27,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:27,855 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:27,860 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 12:34:27,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 12:34:27,881 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 1
[2024-12-02 12:34:27,910 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 9
[2024-12-02 12:34:27,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:34:27,927 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:34:27,927 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:34:27,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320293258]
[2024-12-02 12:34:27,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320293258] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:34:27,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:34:27,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 12:34:27,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660745969]
[2024-12-02 12:34:27,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:34:27,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 12:34:27,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:34:27,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 12:34:27,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 12:34:27,928 INFO L87 Difference]: Start difference. First operand 159 states and 178 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:28,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:34:28,362 INFO L93 Difference]: Finished difference Result 158 states and 176 transitions.
[2024-12-02 12:34:28,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 12:34:28,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22
[2024-12-02 12:34:28,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:34:28,363 INFO L225 Difference]: With dead ends: 158
[2024-12-02 12:34:28,363 INFO L226 Difference]: Without dead ends: 158
[2024-12-02 12:34:28,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 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 12:34:28,363 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 2 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 12:34:28,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 295 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 12:34:28,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states.
[2024-12-02 12:34:28,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158.
[2024-12-02 12:34:28,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 121 states have (on average 1.4297520661157024) internal successors, (173), 156 states have internal predecessors, (173), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:28,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 176 transitions.
[2024-12-02 12:34:28,366 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 176 transitions. Word has length 22
[2024-12-02 12:34:28,366 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:34:28,366 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 176 transitions.
[2024-12-02 12:34:28,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:28,366 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 176 transitions.
[2024-12-02 12:34:28,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-12-02 12:34:28,367 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:28,367 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:34:28,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2024-12-02 12:34:28,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:28,567 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:28,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:28,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1523998158, now seen corresponding path program 1 times
[2024-12-02 12:34:28,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:28,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [122184988]
[2024-12-02 12:34:28,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:28,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:28,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:28,570 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:28,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-12-02 12:34:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:28,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:28,659 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:28,662 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 12:34:28,709 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size
[2024-12-02 12:34:28,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27
[2024-12-02 12:34:28,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1
[2024-12-02 12:34:28,823 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:34:28,823 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35
[2024-12-02 12:34:28,846 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 15
[2024-12-02 12:34:28,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:34:28,897 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:34:28,897 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:34:28,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122184988]
[2024-12-02 12:34:28,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122184988] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:34:28,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:34:28,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-12-02 12:34:28,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533840546]
[2024-12-02 12:34:28,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:34:28,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 12:34:28,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:34:28,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 12:34:28,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-12-02 12:34:28,899 INFO L87 Difference]: Start difference. First operand 158 states and 176 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:29,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:34:29,577 INFO L93 Difference]: Finished difference Result 157 states and 175 transitions.
[2024-12-02 12:34:29,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-12-02 12:34:29,578 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26
[2024-12-02 12:34:29,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:34:29,579 INFO L225 Difference]: With dead ends: 157
[2024-12-02 12:34:29,579 INFO L226 Difference]: Without dead ends: 157
[2024-12-02 12:34:29,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210
[2024-12-02 12:34:29,579 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 95 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-12-02 12:34:29,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 225 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-12-02 12:34:29,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states.
[2024-12-02 12:34:29,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157.
[2024-12-02 12:34:29,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 121 states have (on average 1.421487603305785) internal successors, (172), 155 states have internal predecessors, (172), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:29,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 175 transitions.
[2024-12-02 12:34:29,582 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 175 transitions. Word has length 26
[2024-12-02 12:34:29,582 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:34:29,582 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 175 transitions.
[2024-12-02 12:34:29,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:29,582 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 175 transitions.
[2024-12-02 12:34:29,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-12-02 12:34:29,583 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:29,583 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:34:29,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-12-02 12:34:29,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:29,783 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:29,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:29,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1523998159, now seen corresponding path program 1 times
[2024-12-02 12:34:29,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:29,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [595245136]
[2024-12-02 12:34:29,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:29,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:29,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:29,786 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:29,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-12-02 12:34:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:29,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:29,869 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:29,906 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 12:34:29,906 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 12:34:29,910 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 5
[2024-12-02 12:34:29,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1
[2024-12-02 12:34:29,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 12:34:30,009 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:34:30,010 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45
[2024-12-02 12:34:30,017 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 24 treesize of output 11
[2024-12-02 12:34:30,041 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 13
[2024-12-02 12:34:30,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3
[2024-12-02 12:34:30,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 12:34:30,082 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:34:30,082 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:34:30,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595245136]
[2024-12-02 12:34:30,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595245136] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:34:30,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 12:34:30,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-12-02 12:34:30,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615677106]
[2024-12-02 12:34:30,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:34:30,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 12:34:30,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:34:30,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 12:34:30,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2024-12-02 12:34:30,083 INFO L87 Difference]: Start difference. First operand 157 states and 175 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:30,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:34:30,988 INFO L93 Difference]: Finished difference Result 155 states and 173 transitions.
[2024-12-02 12:34:30,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-12-02 12:34:30,989 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26
[2024-12-02 12:34:30,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:34:30,990 INFO L225 Difference]: With dead ends: 155
[2024-12-02 12:34:30,990 INFO L226 Difference]: Without dead ends: 155
[2024-12-02 12:34:30,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240
[2024-12-02 12:34:30,991 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 92 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-12-02 12:34:30,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 303 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-12-02 12:34:30,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states.
[2024-12-02 12:34:30,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155.
[2024-12-02 12:34:30,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 121 states have (on average 1.4049586776859504) internal successors, (170), 153 states have internal predecessors, (170), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:30,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 173 transitions.
[2024-12-02 12:34:30,995 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 173 transitions. Word has length 26
[2024-12-02 12:34:30,995 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:34:30,995 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 173 transitions.
[2024-12-02 12:34:30,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:30,995 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 173 transitions.
[2024-12-02 12:34:30,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2024-12-02 12:34:30,996 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:30,996 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:34:31,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2024-12-02 12:34:31,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:31,196 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:31,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:31,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1715646929, now seen corresponding path program 1 times
[2024-12-02 12:34:31,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:31,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1387052608]
[2024-12-02 12:34:31,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:31,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:31,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:31,199 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:31,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-12-02 12:34:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:31,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:31,304 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:31,306 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 12:34:31,365 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size
[2024-12-02 12:34:31,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27
[2024-12-02 12:34:31,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1
[2024-12-02 12:34:31,500 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:34:31,500 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35
[2024-12-02 12:34:31,614 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size
[2024-12-02 12:34:31,614 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 35 treesize of output 26
[2024-12-02 12:34:31,640 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:34:31,640 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35
[2024-12-02 12:34:31,760 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 15
[2024-12-02 12:34:31,818 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 12:34:31,818 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:34:31,969 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_492 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|) v_ArrVal_492) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))) is different from false
[2024-12-02 12:34:31,983 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_490 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_492 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_490))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|) v_ArrVal_492)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))) is different from false
[2024-12-02 12:34:31,994 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_490 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_492 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|) v_ArrVal_490))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|) v_ArrVal_492)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))) is different from false
[2024-12-02 12:34:32,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:34:32,010 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 33
[2024-12-02 12:34:32,023 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:34:32,024 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 152 treesize of output 139
[2024-12-02 12:34:32,043 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-12-02 12:34:32,044 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 88 treesize of output 86
[2024-12-02 12:34:32,050 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 78 treesize of output 74
[2024-12-02 12:34:51,554 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 12:34:51,554 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 12:34:51,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387052608]
[2024-12-02 12:34:51,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387052608] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:34:51,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 12:34:51,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 24
[2024-12-02 12:34:51,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462620878]
[2024-12-02 12:34:51,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:34:51,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2024-12-02 12:34:51,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 12:34:51,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2024-12-02 12:34:51,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=349, Unknown=24, NotChecked=126, Total=600
[2024-12-02 12:34:51,556 INFO L87 Difference]: Start difference. First operand 155 states and 173 transitions. Second operand has 25 states, 24 states have (on average 2.4583333333333335) internal successors, (59), 25 states have internal predecessors, (59), 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 12:34:58,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:34:58,143 INFO L93 Difference]: Finished difference Result 252 states and 289 transitions.
[2024-12-02 12:34:58,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-12-02 12:34:58,143 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.4583333333333335) internal successors, (59), 25 states have internal predecessors, (59), 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 30
[2024-12-02 12:34:58,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:34:58,145 INFO L225 Difference]: With dead ends: 252
[2024-12-02 12:34:58,145 INFO L226 Difference]: Without dead ends: 252
[2024-12-02 12:34:58,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=156, Invalid=529, Unknown=29, NotChecked=156, Total=870
[2024-12-02 12:34:58,146 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 319 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 727 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2024-12-02 12:34:58,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 619 Invalid, 1982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1212 Invalid, 0 Unknown, 727 Unchecked, 2.3s Time]
[2024-12-02 12:34:58,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states.
[2024-12-02 12:34:58,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 177.
[2024-12-02 12:34:58,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 143 states have (on average 1.3706293706293706) internal successors, (196), 175 states have internal predecessors, (196), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 12:34:58,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 199 transitions.
[2024-12-02 12:34:58,149 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 199 transitions. Word has length 30
[2024-12-02 12:34:58,150 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:34:58,150 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 199 transitions.
[2024-12-02 12:34:58,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.4583333333333335) internal successors, (59), 25 states have internal predecessors, (59), 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 12:34:58,150 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 199 transitions.
[2024-12-02 12:34:58,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2024-12-02 12:34:58,150 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 12:34:58,151 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:34:58,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2024-12-02 12:34:58,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:58,351 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-12-02 12:34:58,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:34:58,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1715646928, now seen corresponding path program 1 times
[2024-12-02 12:34:58,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 12:34:58,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [424079743]
[2024-12-02 12:34:58,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:34:58,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:34:58,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:34:58,353 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:34:58,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3212c-ac08-4cf0-867a-b99818a35d53/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-12-02 12:34:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:34:58,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 29 conjuncts are in the unsatisfiable core
[2024-12-02 12:34:58,449 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:34:58,451 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 12:34:58,505 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-12-02 12:34:58,505 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 12:34:58,515 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 5
[2024-12-02 12:34:58,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1
[2024-12-02 12:34:58,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 12:34:58,655 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:34:58,655 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45
[2024-12-02 12:34:58,661 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 24 treesize of output 11
[2024-12-02 12:34:58,778 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size
[2024-12-02 12:34:58,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24
[2024-12-02 12:34:58,791 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 12:34:58,792 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 16 treesize of output 11
[2024-12-02 12:34:58,810 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-12-02 12:34:58,810 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45
[2024-12-02 12:34:58,814 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 24 treesize of output 11
[2024-12-02 12:34:58,931 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 13
[2024-12-02 12:34:58,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3
[2024-12-02 12:34:58,985 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 12:34:58,985 INFO L312 TraceCheckSpWp]: Computing backward predicates...