./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0521.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0521.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX --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 aa94cb741c9c7eaa2ca9bb871f44dd4c619faf21975944b61e221a61ad9730d7
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:00:56,607 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:00:56,717 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-11-08 17:00:56,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:00:56,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:00:56,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:00:56,780 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:00:56,780 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:00:56,781 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:00:56,781 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 17:00:56,782 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:00:56,782 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:00:56,783 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:00:56,783 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 17:00:56,784 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 17:00:56,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:00:56,784 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 17:00:56,785 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 17:00:56,785 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 17:00:56,786 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 17:00:56,786 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-08 17:00:56,787 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-08 17:00:56,787 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-08 17:00:56,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:00:56,788 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-08 17:00:56,788 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 17:00:56,788 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 17:00:56,789 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 17:00:56,789 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 17:00:56,789 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:00:56,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 17:00:56,790 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:00:56,790 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 17:00:56,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:00:56,791 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:00:56,792 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:00:56,792 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 17:00:56,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 17:00:56,792 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:00:56,793 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:00:56,793 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:00:56,793 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:00:56,794 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa94cb741c9c7eaa2ca9bb871f44dd4c619faf21975944b61e221a61ad9730d7
[2024-11-08 17:00:57,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:00:57,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:00:57,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:00:57,182 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 17:00:57,182 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 17:00:57,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/memsafety/test-0521.i
Unable to find full path for "g++"
[2024-11-08 17:00:59,242 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:00:59,548 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 17:00:59,549 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/sv-benchmarks/c/memsafety/test-0521.i
[2024-11-08 17:00:59,576 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/data/9fd41ff43/d83f8fa35f284b09bff49cbadcfe1bce/FLAG9723d488a
[2024-11-08 17:00:59,599 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/data/9fd41ff43/d83f8fa35f284b09bff49cbadcfe1bce
[2024-11-08 17:00:59,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:00:59,603 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:00:59,605 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:00:59,606 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:00:59,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:00:59,614 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:00:59" (1/1) ...
[2024-11-08 17:00:59,616 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4766d8d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:59, skipping insertion in model container
[2024-11-08 17:00:59,616 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:00:59" (1/1) ...
[2024-11-08 17:00:59,706 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:01:00,236 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:01:00,252 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 17:01:00,333 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:01:00,371 INFO L204 MainTranslator]: Completed translation
[2024-11-08 17:01:00,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:00 WrapperNode
[2024-11-08 17:01:00,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:01:00,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:01:00,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:01:00,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:01:00,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:00" (1/1) ...
[2024-11-08 17:01:00,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:00" (1/1) ...
[2024-11-08 17:01:00,449 INFO L138 Inliner]: procedures = 125, calls = 95, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 305
[2024-11-08 17:01:00,450 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:01:00,451 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:01:00,451 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:01:00,451 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:01:00,468 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:00" (1/1) ...
[2024-11-08 17:01:00,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:00" (1/1) ...
[2024-11-08 17:01:00,477 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:00" (1/1) ...
[2024-11-08 17:01:00,548 INFO L175 MemorySlicer]: Split 76 memory accesses to 6 slices as follows [3, 16, 2, 31, 16, 8]. 41 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [1, 0, 2, 0, 0, 2]. The 26 writes are split as follows [1, 8, 0, 8, 8, 1].
[2024-11-08 17:01:00,548 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:00" (1/1) ...
[2024-11-08 17:01:00,548 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:00" (1/1) ...
[2024-11-08 17:01:00,569 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:00" (1/1) ...
[2024-11-08 17:01:00,575 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:00" (1/1) ...
[2024-11-08 17:01:00,578 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:00" (1/1) ...
[2024-11-08 17:01:00,581 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:00" (1/1) ...
[2024-11-08 17:01:00,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:01:00,589 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:01:00,589 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:01:00,589 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:01:00,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:00" (1/1) ...
[2024-11-08 17:01:00,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:01:00,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:01:00,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:01:00,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:01:00,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-08 17:01:00,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-08 17:01:00,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-08 17:01:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-11-08 17:01:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4
[2024-11-08 17:01:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5
[2024-11-08 17:01:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-08 17:01:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:01:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-08 17:01:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-08 17:01:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-08 17:01:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-11-08 17:01:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3
[2024-11-08 17:01:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4
[2024-11-08 17:01:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5
[2024-11-08 17:01:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-08 17:01:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-08 17:01:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-08 17:01:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3
[2024-11-08 17:01:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4
[2024-11-08 17:01:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5
[2024-11-08 17:01:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-08 17:01:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-08 17:01:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-08 17:01:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-11-08 17:01:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3
[2024-11-08 17:01:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4
[2024-11-08 17:01:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5
[2024-11-08 17:01:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 17:01:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-08 17:01:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-08 17:01:00,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-11-08 17:01:00,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4
[2024-11-08 17:01:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5
[2024-11-08 17:01:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:01:00,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:01:00,898 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 17:01:00,900 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:01:02,062 INFO L? ?]: Removed 347 outVars from TransFormulas that were not future-live.
[2024-11-08 17:01:02,066 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 17:01:02,129 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:01:02,132 INFO L316 CfgBuilder]: Removed 3 assume(true) statements.
[2024-11-08 17:01:02,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:01:02 BoogieIcfgContainer
[2024-11-08 17:01:02,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:01:02,137 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:01:02,141 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:01:02,148 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:01:02,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:00:59" (1/3) ...
[2024-11-08 17:01:02,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e31b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:01:02, skipping insertion in model container
[2024-11-08 17:01:02,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:00" (2/3) ...
[2024-11-08 17:01:02,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e31b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:01:02, skipping insertion in model container
[2024-11-08 17:01:02,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:01:02" (3/3) ...
[2024-11-08 17:01:02,154 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0521.i
[2024-11-08 17:01:02,174 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:01:02,174 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 152 error locations.
[2024-11-08 17:01:02,241 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:01:02,249 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;@6b2dc5fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:01:02,249 INFO L334 AbstractCegarLoop]: Starting to check reachability of 152 error locations.
[2024-11-08 17:01:02,255 INFO L276 IsEmpty]: Start isEmpty. Operand has 317 states, 164 states have (on average 2.158536585365854) internal successors, (354), 316 states have internal predecessors, (354), 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)
[2024-11-08 17:01:02,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-11-08 17:01:02,263 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:02,264 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-11-08 17:01:02,265 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:02,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:02,279 INFO L85 PathProgramCache]: Analyzing trace with hash 28728519, now seen corresponding path program 1 times
[2024-11-08 17:01:02,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:02,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091579948]
[2024-11-08 17:01:02,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:02,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:02,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:02,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091579948]
[2024-11-08 17:01:02,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091579948] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:02,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:02,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:01:02,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705235137]
[2024-11-08 17:01:02,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:02,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 17:01:02,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:02,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 17:01:02,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:01:02,599 INFO L87 Difference]: Start difference. First operand has 317 states, 164 states have (on average 2.158536585365854) internal successors, (354), 316 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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)
[2024-11-08 17:01:02,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:02,655 INFO L93 Difference]: Finished difference Result 317 states and 349 transitions.
[2024-11-08 17:01:02,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 17:01:02,658 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5
[2024-11-08 17:01:02,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:02,678 INFO L225 Difference]: With dead ends: 317
[2024-11-08 17:01:02,678 INFO L226 Difference]: Without dead ends: 315
[2024-11-08 17:01:02,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:01:02,685 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:02,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:01:02,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states.
[2024-11-08 17:01:02,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315.
[2024-11-08 17:01:02,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 163 states have (on average 2.128834355828221) internal successors, (347), 314 states have internal predecessors, (347), 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)
[2024-11-08 17:01:02,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 347 transitions.
[2024-11-08 17:01:02,772 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 347 transitions. Word has length 5
[2024-11-08 17:01:02,774 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:02,775 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 347 transitions.
[2024-11-08 17:01:02,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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)
[2024-11-08 17:01:02,777 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 347 transitions.
[2024-11-08 17:01:02,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-08 17:01:02,779 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:02,780 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:02,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 17:01:02,781 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:02,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:02,782 INFO L85 PathProgramCache]: Analyzing trace with hash 889539464, now seen corresponding path program 1 times
[2024-11-08 17:01:02,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:02,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236090282]
[2024-11-08 17:01:02,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:02,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:02,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:02,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:02,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236090282]
[2024-11-08 17:01:02,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236090282] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:02,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:02,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:01:02,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459201023]
[2024-11-08 17:01:02,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:02,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:01:02,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:02,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:01:02,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:01:02,958 INFO L87 Difference]: Start difference. First operand 315 states and 347 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-08 17:01:03,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:03,434 INFO L93 Difference]: Finished difference Result 299 states and 331 transitions.
[2024-11-08 17:01:03,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:01:03,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6
[2024-11-08 17:01:03,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:03,437 INFO L225 Difference]: With dead ends: 299
[2024-11-08 17:01:03,437 INFO L226 Difference]: Without dead ends: 299
[2024-11-08 17:01:03,437 INFO L431 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
[2024-11-08 17:01:03,439 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 62 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:03,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 423 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 17:01:03,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states.
[2024-11-08 17:01:03,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299.
[2024-11-08 17:01:03,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 163 states have (on average 2.0306748466257667) internal successors, (331), 298 states have internal predecessors, (331), 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)
[2024-11-08 17:01:03,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 331 transitions.
[2024-11-08 17:01:03,455 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 331 transitions. Word has length 6
[2024-11-08 17:01:03,455 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:03,455 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 331 transitions.
[2024-11-08 17:01:03,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-08 17:01:03,456 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 331 transitions.
[2024-11-08 17:01:03,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-08 17:01:03,456 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:03,457 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:03,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 17:01:03,457 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:03,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:03,462 INFO L85 PathProgramCache]: Analyzing trace with hash 889539465, now seen corresponding path program 1 times
[2024-11-08 17:01:03,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:03,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828494933]
[2024-11-08 17:01:03,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:03,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:03,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:03,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:03,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828494933]
[2024-11-08 17:01:03,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828494933] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:03,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:03,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:01:03,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142866270]
[2024-11-08 17:01:03,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:03,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:01:03,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:03,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:01:03,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:01:03,649 INFO L87 Difference]: Start difference. First operand 299 states and 331 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-08 17:01:03,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:03,993 INFO L93 Difference]: Finished difference Result 283 states and 315 transitions.
[2024-11-08 17:01:03,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:01:03,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6
[2024-11-08 17:01:03,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:03,995 INFO L225 Difference]: With dead ends: 283
[2024-11-08 17:01:03,995 INFO L226 Difference]: Without dead ends: 283
[2024-11-08 17:01:03,996 INFO L431 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
[2024-11-08 17:01:03,999 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 62 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:04,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 432 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:01:04,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states.
[2024-11-08 17:01:04,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283.
[2024-11-08 17:01:04,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 163 states have (on average 1.9325153374233128) internal successors, (315), 282 states have internal predecessors, (315), 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)
[2024-11-08 17:01:04,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 315 transitions.
[2024-11-08 17:01:04,023 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 315 transitions. Word has length 6
[2024-11-08 17:01:04,023 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:04,023 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 315 transitions.
[2024-11-08 17:01:04,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-08 17:01:04,024 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 315 transitions.
[2024-11-08 17:01:04,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-08 17:01:04,029 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:04,029 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:04,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 17:01:04,034 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:04,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:04,035 INFO L85 PathProgramCache]: Analyzing trace with hash 889540555, now seen corresponding path program 1 times
[2024-11-08 17:01:04,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:04,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353593352]
[2024-11-08 17:01:04,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:04,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:04,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:04,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:04,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353593352]
[2024-11-08 17:01:04,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353593352] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:04,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:04,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:01:04,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700251071]
[2024-11-08 17:01:04,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:04,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:01:04,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:04,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:01:04,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:01:04,145 INFO L87 Difference]: Start difference. First operand 283 states and 315 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-08 17:01:04,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:04,448 INFO L93 Difference]: Finished difference Result 281 states and 313 transitions.
[2024-11-08 17:01:04,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:01:04,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6
[2024-11-08 17:01:04,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:04,450 INFO L225 Difference]: With dead ends: 281
[2024-11-08 17:01:04,450 INFO L226 Difference]: Without dead ends: 281
[2024-11-08 17:01:04,450 INFO L431 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
[2024-11-08 17:01:04,452 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 6 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:04,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 469 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:01:04,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states.
[2024-11-08 17:01:04,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281.
[2024-11-08 17:01:04,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 163 states have (on average 1.9202453987730062) internal successors, (313), 280 states have internal predecessors, (313), 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)
[2024-11-08 17:01:04,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 313 transitions.
[2024-11-08 17:01:04,474 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 313 transitions. Word has length 6
[2024-11-08 17:01:04,474 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:04,474 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 313 transitions.
[2024-11-08 17:01:04,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-08 17:01:04,475 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 313 transitions.
[2024-11-08 17:01:04,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-08 17:01:04,475 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:04,475 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:04,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 17:01:04,476 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:04,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:04,476 INFO L85 PathProgramCache]: Analyzing trace with hash 889540556, now seen corresponding path program 1 times
[2024-11-08 17:01:04,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:04,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508127119]
[2024-11-08 17:01:04,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:04,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:04,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:04,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:04,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508127119]
[2024-11-08 17:01:04,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508127119] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:04,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:04,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:01:04,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140073567]
[2024-11-08 17:01:04,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:04,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:01:04,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:04,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:01:04,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:01:04,571 INFO L87 Difference]: Start difference. First operand 281 states and 313 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-08 17:01:04,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:04,850 INFO L93 Difference]: Finished difference Result 279 states and 311 transitions.
[2024-11-08 17:01:04,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:01:04,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6
[2024-11-08 17:01:04,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:04,853 INFO L225 Difference]: With dead ends: 279
[2024-11-08 17:01:04,853 INFO L226 Difference]: Without dead ends: 279
[2024-11-08 17:01:04,854 INFO L431 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
[2024-11-08 17:01:04,856 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 6 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:04,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 479 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:01:04,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states.
[2024-11-08 17:01:04,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279.
[2024-11-08 17:01:04,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 163 states have (on average 1.9079754601226995) internal successors, (311), 278 states have internal predecessors, (311), 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)
[2024-11-08 17:01:04,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 311 transitions.
[2024-11-08 17:01:04,873 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 311 transitions. Word has length 6
[2024-11-08 17:01:04,874 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:04,874 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 311 transitions.
[2024-11-08 17:01:04,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-08 17:01:04,879 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 311 transitions.
[2024-11-08 17:01:04,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 17:01:04,879 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:04,879 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:04,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 17:01:04,880 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:04,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:04,880 INFO L85 PathProgramCache]: Analyzing trace with hash 148933577, now seen corresponding path program 1 times
[2024-11-08 17:01:04,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:04,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721901287]
[2024-11-08 17:01:04,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:04,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:04,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:04,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:04,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721901287]
[2024-11-08 17:01:04,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721901287] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:04,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:04,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:01:04,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649369540]
[2024-11-08 17:01:04,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:04,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:01:04,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:04,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:01:04,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:01:04,997 INFO L87 Difference]: Start difference. First operand 279 states and 311 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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)
[2024-11-08 17:01:05,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:05,088 INFO L93 Difference]: Finished difference Result 344 states and 385 transitions.
[2024-11-08 17:01:05,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:01:05,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8
[2024-11-08 17:01:05,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:05,091 INFO L225 Difference]: With dead ends: 344
[2024-11-08 17:01:05,091 INFO L226 Difference]: Without dead ends: 344
[2024-11-08 17:01:05,091 INFO L431 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
[2024-11-08 17:01:05,092 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 70 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:05,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 895 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:01:05,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states.
[2024-11-08 17:01:05,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 284.
[2024-11-08 17:01:05,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 168 states have (on average 1.8869047619047619) internal successors, (317), 283 states have internal predecessors, (317), 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)
[2024-11-08 17:01:05,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 317 transitions.
[2024-11-08 17:01:05,104 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 317 transitions. Word has length 8
[2024-11-08 17:01:05,104 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:05,104 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 317 transitions.
[2024-11-08 17:01:05,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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)
[2024-11-08 17:01:05,104 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 317 transitions.
[2024-11-08 17:01:05,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-08 17:01:05,105 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:05,105 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:05,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-08 17:01:05,105 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:05,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:05,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1322864081, now seen corresponding path program 1 times
[2024-11-08 17:01:05,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:05,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085642736]
[2024-11-08 17:01:05,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:05,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:05,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:05,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:05,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085642736]
[2024-11-08 17:01:05,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085642736] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:05,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:05,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:01:05,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650749481]
[2024-11-08 17:01:05,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:05,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:01:05,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:05,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:01:05,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:01:05,189 INFO L87 Difference]: Start difference. First operand 284 states and 317 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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)
[2024-11-08 17:01:05,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:05,448 INFO L93 Difference]: Finished difference Result 282 states and 315 transitions.
[2024-11-08 17:01:05,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:01:05,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2024-11-08 17:01:05,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:05,451 INFO L225 Difference]: With dead ends: 282
[2024-11-08 17:01:05,451 INFO L226 Difference]: Without dead ends: 282
[2024-11-08 17:01:05,451 INFO L431 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
[2024-11-08 17:01:05,452 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 2 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:05,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 468 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:01:05,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states.
[2024-11-08 17:01:05,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282.
[2024-11-08 17:01:05,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 168 states have (on average 1.875) internal successors, (315), 281 states have internal predecessors, (315), 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)
[2024-11-08 17:01:05,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 315 transitions.
[2024-11-08 17:01:05,466 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 315 transitions. Word has length 11
[2024-11-08 17:01:05,467 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:05,467 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 315 transitions.
[2024-11-08 17:01:05,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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)
[2024-11-08 17:01:05,467 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 315 transitions.
[2024-11-08 17:01:05,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-08 17:01:05,468 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:05,468 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:05,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-08 17:01:05,468 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:05,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:05,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1322864082, now seen corresponding path program 1 times
[2024-11-08 17:01:05,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:05,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475592783]
[2024-11-08 17:01:05,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:05,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:05,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:05,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:05,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475592783]
[2024-11-08 17:01:05,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475592783] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:05,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:05,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:01:05,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422690421]
[2024-11-08 17:01:05,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:05,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:01:05,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:05,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:01:05,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:01:05,681 INFO L87 Difference]: Start difference. First operand 282 states and 315 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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)
[2024-11-08 17:01:05,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:05,944 INFO L93 Difference]: Finished difference Result 280 states and 313 transitions.
[2024-11-08 17:01:05,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:01:05,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2024-11-08 17:01:05,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:05,947 INFO L225 Difference]: With dead ends: 280
[2024-11-08 17:01:05,947 INFO L226 Difference]: Without dead ends: 280
[2024-11-08 17:01:05,948 INFO L431 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
[2024-11-08 17:01:05,949 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 2 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:05,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 478 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:01:05,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states.
[2024-11-08 17:01:05,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280.
[2024-11-08 17:01:05,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 168 states have (on average 1.8630952380952381) internal successors, (313), 279 states have internal predecessors, (313), 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)
[2024-11-08 17:01:05,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 313 transitions.
[2024-11-08 17:01:05,966 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 313 transitions. Word has length 11
[2024-11-08 17:01:05,967 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:05,967 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 313 transitions.
[2024-11-08 17:01:05,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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)
[2024-11-08 17:01:05,968 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 313 transitions.
[2024-11-08 17:01:05,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-08 17:01:05,969 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:05,969 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:05,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-08 17:01:05,974 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:05,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:05,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1007454123, now seen corresponding path program 1 times
[2024-11-08 17:01:05,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:05,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797839965]
[2024-11-08 17:01:05,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:05,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:06,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:06,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:06,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797839965]
[2024-11-08 17:01:06,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797839965] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:06,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:06,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 17:01:06,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822021492]
[2024-11-08 17:01:06,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:06,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:01:06,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:06,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:01:06,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:01:06,197 INFO L87 Difference]: Start difference. First operand 280 states and 313 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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)
[2024-11-08 17:01:06,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:06,416 INFO L93 Difference]: Finished difference Result 334 states and 376 transitions.
[2024-11-08 17:01:06,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 17:01:06,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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
[2024-11-08 17:01:06,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:06,419 INFO L225 Difference]: With dead ends: 334
[2024-11-08 17:01:06,419 INFO L226 Difference]: Without dead ends: 334
[2024-11-08 17:01:06,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2024-11-08 17:01:06,420 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 86 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:06,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 1464 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:01:06,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states.
[2024-11-08 17:01:06,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 283.
[2024-11-08 17:01:06,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 171 states have (on average 1.847953216374269) internal successors, (316), 282 states have internal predecessors, (316), 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)
[2024-11-08 17:01:06,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 316 transitions.
[2024-11-08 17:01:06,434 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 316 transitions. Word has length 13
[2024-11-08 17:01:06,435 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:06,435 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 316 transitions.
[2024-11-08 17:01:06,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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)
[2024-11-08 17:01:06,435 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 316 transitions.
[2024-11-08 17:01:06,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-08 17:01:06,436 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:06,436 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:06,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-08 17:01:06,436 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:06,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:06,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1754761886, now seen corresponding path program 1 times
[2024-11-08 17:01:06,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:06,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524843128]
[2024-11-08 17:01:06,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:06,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:06,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:06,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:06,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524843128]
[2024-11-08 17:01:06,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524843128] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:06,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:06,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:01:06,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786311884]
[2024-11-08 17:01:06,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:06,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:01:06,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:06,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:01:06,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:01:06,537 INFO L87 Difference]: Start difference. First operand 283 states and 316 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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)
[2024-11-08 17:01:06,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:06,662 INFO L93 Difference]: Finished difference Result 408 states and 455 transitions.
[2024-11-08 17:01:06,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:01:06,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15
[2024-11-08 17:01:06,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:06,665 INFO L225 Difference]: With dead ends: 408
[2024-11-08 17:01:06,665 INFO L226 Difference]: Without dead ends: 408
[2024-11-08 17:01:06,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:01:06,667 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 135 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:06,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1151 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:01:06,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states.
[2024-11-08 17:01:06,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 348.
[2024-11-08 17:01:06,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 236 states have (on average 1.8940677966101696) internal successors, (447), 347 states have internal predecessors, (447), 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)
[2024-11-08 17:01:06,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 447 transitions.
[2024-11-08 17:01:06,677 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 447 transitions. Word has length 15
[2024-11-08 17:01:06,677 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:06,677 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 447 transitions.
[2024-11-08 17:01:06,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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)
[2024-11-08 17:01:06,678 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 447 transitions.
[2024-11-08 17:01:06,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-08 17:01:06,680 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:06,680 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:06,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-08 17:01:06,680 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:06,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:06,682 INFO L85 PathProgramCache]: Analyzing trace with hash 30543974, now seen corresponding path program 1 times
[2024-11-08 17:01:06,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:06,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037206056]
[2024-11-08 17:01:06,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:06,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:06,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:06,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:06,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037206056]
[2024-11-08 17:01:06,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037206056] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:06,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:06,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:01:06,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772534059]
[2024-11-08 17:01:06,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:06,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:01:06,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:06,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:01:06,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:01:06,732 INFO L87 Difference]: Start difference. First operand 348 states and 447 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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)
[2024-11-08 17:01:06,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:06,768 INFO L93 Difference]: Finished difference Result 332 states and 420 transitions.
[2024-11-08 17:01:06,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:01:06,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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
[2024-11-08 17:01:06,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:06,770 INFO L225 Difference]: With dead ends: 332
[2024-11-08 17:01:06,770 INFO L226 Difference]: Without dead ends: 332
[2024-11-08 17:01:06,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:01:06,770 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 0 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:06,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 600 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:01:06,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states.
[2024-11-08 17:01:06,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332.
[2024-11-08 17:01:06,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 220 states have (on average 1.9090909090909092) internal successors, (420), 331 states have internal predecessors, (420), 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)
[2024-11-08 17:01:06,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 420 transitions.
[2024-11-08 17:01:06,778 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 420 transitions. Word has length 17
[2024-11-08 17:01:06,778 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:06,779 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 420 transitions.
[2024-11-08 17:01:06,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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)
[2024-11-08 17:01:06,779 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 420 transitions.
[2024-11-08 17:01:06,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-08 17:01:06,780 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:06,780 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:06,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-08 17:01:06,780 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:06,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:06,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1596171590, now seen corresponding path program 1 times
[2024-11-08 17:01:06,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:06,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829120295]
[2024-11-08 17:01:06,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:06,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:06,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:06,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:06,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829120295]
[2024-11-08 17:01:06,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829120295] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:06,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:06,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:01:06,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090293166]
[2024-11-08 17:01:06,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:06,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:01:06,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:06,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:01:06,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:01:06,833 INFO L87 Difference]: Start difference. First operand 332 states and 420 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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)
[2024-11-08 17:01:07,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:07,078 INFO L93 Difference]: Finished difference Result 316 states and 388 transitions.
[2024-11-08 17:01:07,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:01:07,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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
[2024-11-08 17:01:07,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:07,080 INFO L225 Difference]: With dead ends: 316
[2024-11-08 17:01:07,080 INFO L226 Difference]: Without dead ends: 316
[2024-11-08 17:01:07,081 INFO L431 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
[2024-11-08 17:01:07,081 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 62 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:07,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 363 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:01:07,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states.
[2024-11-08 17:01:07,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316.
[2024-11-08 17:01:07,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 220 states have (on average 1.7636363636363637) internal successors, (388), 315 states have internal predecessors, (388), 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)
[2024-11-08 17:01:07,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 388 transitions.
[2024-11-08 17:01:07,089 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 388 transitions. Word has length 17
[2024-11-08 17:01:07,089 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:07,089 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 388 transitions.
[2024-11-08 17:01:07,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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)
[2024-11-08 17:01:07,090 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 388 transitions.
[2024-11-08 17:01:07,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-08 17:01:07,090 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:07,091 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:07,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-08 17:01:07,091 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr94REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:07,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:07,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1596171591, now seen corresponding path program 1 times
[2024-11-08 17:01:07,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:07,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006385393]
[2024-11-08 17:01:07,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:07,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:07,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:07,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:07,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006385393]
[2024-11-08 17:01:07,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006385393] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:07,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:07,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:01:07,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264017901]
[2024-11-08 17:01:07,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:07,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:01:07,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:07,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:01:07,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:01:07,170 INFO L87 Difference]: Start difference. First operand 316 states and 388 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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)
[2024-11-08 17:01:07,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:07,415 INFO L93 Difference]: Finished difference Result 300 states and 356 transitions.
[2024-11-08 17:01:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:01:07,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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
[2024-11-08 17:01:07,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:07,417 INFO L225 Difference]: With dead ends: 300
[2024-11-08 17:01:07,417 INFO L226 Difference]: Without dead ends: 300
[2024-11-08 17:01:07,418 INFO L431 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
[2024-11-08 17:01:07,419 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 62 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:07,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 372 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:01:07,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states.
[2024-11-08 17:01:07,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300.
[2024-11-08 17:01:07,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 220 states have (on average 1.6181818181818182) internal successors, (356), 299 states have internal predecessors, (356), 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)
[2024-11-08 17:01:07,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 356 transitions.
[2024-11-08 17:01:07,427 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 356 transitions. Word has length 17
[2024-11-08 17:01:07,428 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:07,428 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 356 transitions.
[2024-11-08 17:01:07,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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)
[2024-11-08 17:01:07,428 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 356 transitions.
[2024-11-08 17:01:07,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-11-08 17:01:07,429 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:07,429 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:07,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-08 17:01:07,430 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr95REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:07,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:07,430 INFO L85 PathProgramCache]: Analyzing trace with hash 617582823, now seen corresponding path program 1 times
[2024-11-08 17:01:07,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:07,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399690024]
[2024-11-08 17:01:07,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:07,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:07,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:07,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:07,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399690024]
[2024-11-08 17:01:07,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399690024] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:07,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:07,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:01:07,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042205343]
[2024-11-08 17:01:07,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:07,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:01:07,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:07,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:01:07,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:01:07,572 INFO L87 Difference]: Start difference. First operand 300 states and 356 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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)
[2024-11-08 17:01:07,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:07,701 INFO L93 Difference]: Finished difference Result 318 states and 359 transitions.
[2024-11-08 17:01:07,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:01:07,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 19
[2024-11-08 17:01:07,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:07,704 INFO L225 Difference]: With dead ends: 318
[2024-11-08 17:01:07,704 INFO L226 Difference]: Without dead ends: 318
[2024-11-08 17:01:07,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:01:07,705 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 66 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:07,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1022 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:01:07,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states.
[2024-11-08 17:01:07,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 298.
[2024-11-08 17:01:07,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 218 states have (on average 1.610091743119266) internal successors, (351), 297 states have internal predecessors, (351), 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)
[2024-11-08 17:01:07,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 351 transitions.
[2024-11-08 17:01:07,714 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 351 transitions. Word has length 19
[2024-11-08 17:01:07,714 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:07,714 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 351 transitions.
[2024-11-08 17:01:07,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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)
[2024-11-08 17:01:07,715 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 351 transitions.
[2024-11-08 17:01:07,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-11-08 17:01:07,717 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:07,717 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:07,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-08 17:01:07,718 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:07,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:07,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1952705991, now seen corresponding path program 1 times
[2024-11-08 17:01:07,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:07,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256794806]
[2024-11-08 17:01:07,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:07,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:07,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:07,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:07,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256794806]
[2024-11-08 17:01:07,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256794806] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:07,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:07,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:01:07,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88087355]
[2024-11-08 17:01:07,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:07,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:01:07,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:07,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:01:07,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:01:07,927 INFO L87 Difference]: Start difference. First operand 298 states and 351 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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)
[2024-11-08 17:01:08,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:08,420 INFO L93 Difference]: Finished difference Result 320 states and 376 transitions.
[2024-11-08 17:01:08,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:01:08,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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 19
[2024-11-08 17:01:08,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:08,422 INFO L225 Difference]: With dead ends: 320
[2024-11-08 17:01:08,422 INFO L226 Difference]: Without dead ends: 320
[2024-11-08 17:01:08,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:01:08,423 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 86 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:08,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 648 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 17:01:08,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states.
[2024-11-08 17:01:08,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 301.
[2024-11-08 17:01:08,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 223 states have (on average 1.6053811659192825) internal successors, (358), 300 states have internal predecessors, (358), 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)
[2024-11-08 17:01:08,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 358 transitions.
[2024-11-08 17:01:08,432 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 358 transitions. Word has length 19
[2024-11-08 17:01:08,432 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:08,432 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 358 transitions.
[2024-11-08 17:01:08,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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)
[2024-11-08 17:01:08,432 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 358 transitions.
[2024-11-08 17:01:08,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-11-08 17:01:08,433 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:08,433 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:08,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-08 17:01:08,434 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:08,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:08,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1952705990, now seen corresponding path program 1 times
[2024-11-08 17:01:08,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:08,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984114665]
[2024-11-08 17:01:08,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:08,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:08,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:08,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:08,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984114665]
[2024-11-08 17:01:08,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984114665] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:08,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:08,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:01:08,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719427530]
[2024-11-08 17:01:08,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:08,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:01:08,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:08,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:01:08,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:01:08,650 INFO L87 Difference]: Start difference. First operand 301 states and 358 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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)
[2024-11-08 17:01:09,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:09,142 INFO L93 Difference]: Finished difference Result 308 states and 365 transitions.
[2024-11-08 17:01:09,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:01:09,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 19
[2024-11-08 17:01:09,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:09,144 INFO L225 Difference]: With dead ends: 308
[2024-11-08 17:01:09,144 INFO L226 Difference]: Without dead ends: 308
[2024-11-08 17:01:09,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:01:09,145 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 66 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:09,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 688 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 17:01:09,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states.
[2024-11-08 17:01:09,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 300.
[2024-11-08 17:01:09,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 223 states have (on average 1.600896860986547) internal successors, (357), 299 states have internal predecessors, (357), 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)
[2024-11-08 17:01:09,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 357 transitions.
[2024-11-08 17:01:09,153 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 357 transitions. Word has length 19
[2024-11-08 17:01:09,153 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:09,153 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 357 transitions.
[2024-11-08 17:01:09,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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)
[2024-11-08 17:01:09,154 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 357 transitions.
[2024-11-08 17:01:09,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-08 17:01:09,154 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:09,154 INFO L215 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]
[2024-11-08 17:01:09,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-08 17:01:09,155 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr104REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:09,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:09,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1867538097, now seen corresponding path program 1 times
[2024-11-08 17:01:09,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:09,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100227653]
[2024-11-08 17:01:09,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:09,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:09,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:09,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:09,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100227653]
[2024-11-08 17:01:09,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100227653] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:09,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:09,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 17:01:09,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575270814]
[2024-11-08 17:01:09,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:09,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 17:01:09,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:09,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 17:01:09,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:01:09,439 INFO L87 Difference]: Start difference. First operand 300 states and 357 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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)
[2024-11-08 17:01:09,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:09,727 INFO L93 Difference]: Finished difference Result 318 states and 364 transitions.
[2024-11-08 17:01:09,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 17:01:09,728 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 24
[2024-11-08 17:01:09,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:09,729 INFO L225 Difference]: With dead ends: 318
[2024-11-08 17:01:09,729 INFO L226 Difference]: Without dead ends: 318
[2024-11-08 17:01:09,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110
[2024-11-08 17:01:09,730 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 87 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:09,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1504 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:01:09,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states.
[2024-11-08 17:01:09,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 286.
[2024-11-08 17:01:09,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 209 states have (on average 1.5980861244019138) internal successors, (334), 285 states have internal predecessors, (334), 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)
[2024-11-08 17:01:09,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 334 transitions.
[2024-11-08 17:01:09,738 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 334 transitions. Word has length 24
[2024-11-08 17:01:09,738 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:09,738 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 334 transitions.
[2024-11-08 17:01:09,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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)
[2024-11-08 17:01:09,739 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 334 transitions.
[2024-11-08 17:01:09,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-08 17:01:09,740 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:09,740 INFO L215 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]
[2024-11-08 17:01:09,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-08 17:01:09,740 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:09,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:09,741 INFO L85 PathProgramCache]: Analyzing trace with hash 647657445, now seen corresponding path program 1 times
[2024-11-08 17:01:09,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:09,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900501764]
[2024-11-08 17:01:09,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:09,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:09,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:09,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:09,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900501764]
[2024-11-08 17:01:09,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900501764] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:09,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:09,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:01:09,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385885529]
[2024-11-08 17:01:09,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:09,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:01:09,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:09,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:01:09,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:01:09,830 INFO L87 Difference]: Start difference. First operand 286 states and 334 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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)
[2024-11-08 17:01:09,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:09,926 INFO L93 Difference]: Finished difference Result 294 states and 341 transitions.
[2024-11-08 17:01:09,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:01:09,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 24
[2024-11-08 17:01:09,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:09,928 INFO L225 Difference]: With dead ends: 294
[2024-11-08 17:01:09,928 INFO L226 Difference]: Without dead ends: 294
[2024-11-08 17:01:09,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:01:09,929 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 69 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:09,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1022 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:01:09,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states.
[2024-11-08 17:01:09,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 286.
[2024-11-08 17:01:09,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 209 states have (on average 1.5933014354066986) internal successors, (333), 285 states have internal predecessors, (333), 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)
[2024-11-08 17:01:09,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 333 transitions.
[2024-11-08 17:01:09,937 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 333 transitions. Word has length 24
[2024-11-08 17:01:09,938 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:09,938 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 333 transitions.
[2024-11-08 17:01:09,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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)
[2024-11-08 17:01:09,938 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 333 transitions.
[2024-11-08 17:01:09,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-08 17:01:09,938 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:09,939 INFO L215 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]
[2024-11-08 17:01:09,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-08 17:01:09,939 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr151ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:09,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:09,939 INFO L85 PathProgramCache]: Analyzing trace with hash 633277862, now seen corresponding path program 1 times
[2024-11-08 17:01:09,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:09,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741073501]
[2024-11-08 17:01:09,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:09,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:10,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:10,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:10,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741073501]
[2024-11-08 17:01:10,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741073501] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:10,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:10,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:01:10,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693048702]
[2024-11-08 17:01:10,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:10,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:01:10,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:10,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:01:10,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:01:10,147 INFO L87 Difference]: Start difference. First operand 286 states and 333 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 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)
[2024-11-08 17:01:10,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:10,586 INFO L93 Difference]: Finished difference Result 294 states and 334 transitions.
[2024-11-08 17:01:10,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:01:10,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 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
[2024-11-08 17:01:10,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:10,588 INFO L225 Difference]: With dead ends: 294
[2024-11-08 17:01:10,588 INFO L226 Difference]: Without dead ends: 290
[2024-11-08 17:01:10,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:01:10,589 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 28 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:10,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 699 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 17:01:10,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states.
[2024-11-08 17:01:10,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 284.
[2024-11-08 17:01:10,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 207 states have (on average 1.5893719806763285) internal successors, (329), 283 states have internal predecessors, (329), 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)
[2024-11-08 17:01:10,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 329 transitions.
[2024-11-08 17:01:10,596 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 329 transitions. Word has length 26
[2024-11-08 17:01:10,597 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:10,597 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 329 transitions.
[2024-11-08 17:01:10,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 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)
[2024-11-08 17:01:10,597 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 329 transitions.
[2024-11-08 17:01:10,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-08 17:01:10,598 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:10,598 INFO L215 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]
[2024-11-08 17:01:10,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-08 17:01:10,598 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:10,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:10,599 INFO L85 PathProgramCache]: Analyzing trace with hash 543755136, now seen corresponding path program 1 times
[2024-11-08 17:01:10,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:10,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881003914]
[2024-11-08 17:01:10,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:10,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:11,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:11,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:11,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881003914]
[2024-11-08 17:01:11,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881003914] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:11,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:11,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-11-08 17:01:11,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150074700]
[2024-11-08 17:01:11,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:11,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 17:01:11,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:11,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 17:01:11,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132
[2024-11-08 17:01:11,152 INFO L87 Difference]: Start difference. First operand 284 states and 329 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 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)
[2024-11-08 17:01:12,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:12,214 INFO L93 Difference]: Finished difference Result 287 states and 332 transitions.
[2024-11-08 17:01:12,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-08 17:01:12,215 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 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
[2024-11-08 17:01:12,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:12,216 INFO L225 Difference]: With dead ends: 287
[2024-11-08 17:01:12,217 INFO L226 Difference]: Without dead ends: 287
[2024-11-08 17:01:12,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342
[2024-11-08 17:01:12,218 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 81 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:12,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1364 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-08 17:01:12,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states.
[2024-11-08 17:01:12,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 283.
[2024-11-08 17:01:12,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 207 states have (on average 1.5845410628019323) internal successors, (328), 282 states have internal predecessors, (328), 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)
[2024-11-08 17:01:12,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 328 transitions.
[2024-11-08 17:01:12,226 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 328 transitions. Word has length 26
[2024-11-08 17:01:12,226 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:12,226 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 328 transitions.
[2024-11-08 17:01:12,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 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)
[2024-11-08 17:01:12,227 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 328 transitions.
[2024-11-08 17:01:12,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-08 17:01:12,227 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:12,227 INFO L215 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]
[2024-11-08 17:01:12,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-11-08 17:01:12,228 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:12,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:12,229 INFO L85 PathProgramCache]: Analyzing trace with hash 543755137, now seen corresponding path program 1 times
[2024-11-08 17:01:12,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:12,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418281570]
[2024-11-08 17:01:12,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:12,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:13,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:13,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:13,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418281570]
[2024-11-08 17:01:13,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418281570] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:13,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:13,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-11-08 17:01:13,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686438172]
[2024-11-08 17:01:13,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:13,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 17:01:13,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:13,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 17:01:13,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132
[2024-11-08 17:01:13,162 INFO L87 Difference]: Start difference. First operand 283 states and 328 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 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)
[2024-11-08 17:01:14,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:14,362 INFO L93 Difference]: Finished difference Result 286 states and 331 transitions.
[2024-11-08 17:01:14,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-08 17:01:14,363 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 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
[2024-11-08 17:01:14,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:14,365 INFO L225 Difference]: With dead ends: 286
[2024-11-08 17:01:14,365 INFO L226 Difference]: Without dead ends: 286
[2024-11-08 17:01:14,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380
[2024-11-08 17:01:14,366 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 81 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:14,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1433 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-08 17:01:14,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states.
[2024-11-08 17:01:14,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 282.
[2024-11-08 17:01:14,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 207 states have (on average 1.5797101449275361) internal successors, (327), 281 states have internal predecessors, (327), 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)
[2024-11-08 17:01:14,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 327 transitions.
[2024-11-08 17:01:14,374 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 327 transitions. Word has length 26
[2024-11-08 17:01:14,374 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:14,375 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 327 transitions.
[2024-11-08 17:01:14,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 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)
[2024-11-08 17:01:14,375 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 327 transitions.
[2024-11-08 17:01:14,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2024-11-08 17:01:14,376 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:14,376 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:14,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-11-08 17:01:14,376 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr123REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:14,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:14,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1383211679, now seen corresponding path program 1 times
[2024-11-08 17:01:14,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:14,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193475871]
[2024-11-08 17:01:14,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:14,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:14,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:14,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:14,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193475871]
[2024-11-08 17:01:14,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193475871] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:14,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:14,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:01:14,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096653865]
[2024-11-08 17:01:14,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:14,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:01:14,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:14,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:01:14,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:01:14,428 INFO L87 Difference]: Start difference. First operand 282 states and 327 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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)
[2024-11-08 17:01:14,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:14,451 INFO L93 Difference]: Finished difference Result 266 states and 301 transitions.
[2024-11-08 17:01:14,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:01:14,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 28
[2024-11-08 17:01:14,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:14,453 INFO L225 Difference]: With dead ends: 266
[2024-11-08 17:01:14,453 INFO L226 Difference]: Without dead ends: 248
[2024-11-08 17:01:14,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:01:14,454 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 0 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:14,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 526 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:01:14,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states.
[2024-11-08 17:01:14,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248.
[2024-11-08 17:01:14,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 173 states have (on average 1.6358381502890174) internal successors, (283), 247 states have internal predecessors, (283), 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)
[2024-11-08 17:01:14,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 283 transitions.
[2024-11-08 17:01:14,461 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 283 transitions. Word has length 28
[2024-11-08 17:01:14,461 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:14,461 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 283 transitions.
[2024-11-08 17:01:14,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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)
[2024-11-08 17:01:14,461 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 283 transitions.
[2024-11-08 17:01:14,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2024-11-08 17:01:14,462 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:14,462 INFO L215 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]
[2024-11-08 17:01:14,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-11-08 17:01:14,463 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:14,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:14,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1396315699, now seen corresponding path program 1 times
[2024-11-08 17:01:14,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:14,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627493621]
[2024-11-08 17:01:14,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:14,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:14,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:14,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:14,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627493621]
[2024-11-08 17:01:14,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627493621] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:14,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:14,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-08 17:01:14,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221461507]
[2024-11-08 17:01:14,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:14,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 17:01:14,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:14,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 17:01:14,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:01:14,732 INFO L87 Difference]: Start difference. First operand 248 states and 283 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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)
[2024-11-08 17:01:14,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:14,967 INFO L93 Difference]: Finished difference Result 268 states and 306 transitions.
[2024-11-08 17:01:14,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-08 17:01:14,968 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 28
[2024-11-08 17:01:14,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:14,970 INFO L225 Difference]: With dead ends: 268
[2024-11-08 17:01:14,970 INFO L226 Difference]: Without dead ends: 268
[2024-11-08 17:01:14,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182
[2024-11-08 17:01:14,971 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 120 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:14,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1402 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:01:14,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states.
[2024-11-08 17:01:14,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 248.
[2024-11-08 17:01:14,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 173 states have (on average 1.630057803468208) internal successors, (282), 247 states have internal predecessors, (282), 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)
[2024-11-08 17:01:14,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 282 transitions.
[2024-11-08 17:01:14,980 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 282 transitions. Word has length 28
[2024-11-08 17:01:14,981 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:14,981 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 282 transitions.
[2024-11-08 17:01:14,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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)
[2024-11-08 17:01:14,981 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 282 transitions.
[2024-11-08 17:01:14,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2024-11-08 17:01:14,982 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:14,982 INFO L215 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]
[2024-11-08 17:01:14,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-11-08 17:01:14,983 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:14,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:14,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1712067018, now seen corresponding path program 1 times
[2024-11-08 17:01:14,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:14,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734823010]
[2024-11-08 17:01:14,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:14,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:15,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-08 17:01:15,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:15,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734823010]
[2024-11-08 17:01:15,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734823010] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:15,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:15,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:01:15,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118236183]
[2024-11-08 17:01:15,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:15,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:01:15,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:15,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:01:15,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:01:15,215 INFO L87 Difference]: Start difference. First operand 248 states and 282 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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)
[2024-11-08 17:01:15,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:15,572 INFO L93 Difference]: Finished difference Result 267 states and 305 transitions.
[2024-11-08 17:01:15,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:01:15,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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
[2024-11-08 17:01:15,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:15,574 INFO L225 Difference]: With dead ends: 267
[2024-11-08 17:01:15,574 INFO L226 Difference]: Without dead ends: 267
[2024-11-08 17:01:15,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:01:15,575 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 24 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:15,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 767 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:01:15,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states.
[2024-11-08 17:01:15,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 247.
[2024-11-08 17:01:15,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 173 states have (on average 1.6242774566473988) internal successors, (281), 246 states have internal predecessors, (281), 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)
[2024-11-08 17:01:15,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 281 transitions.
[2024-11-08 17:01:15,582 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 281 transitions. Word has length 30
[2024-11-08 17:01:15,583 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:15,583 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 281 transitions.
[2024-11-08 17:01:15,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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)
[2024-11-08 17:01:15,583 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 281 transitions.
[2024-11-08 17:01:15,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2024-11-08 17:01:15,583 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:15,584 INFO L215 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]
[2024-11-08 17:01:15,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-11-08 17:01:15,584 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:15,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:15,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1712067019, now seen corresponding path program 1 times
[2024-11-08 17:01:15,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:15,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769943429]
[2024-11-08 17:01:15,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:15,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:16,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:16,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:16,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769943429]
[2024-11-08 17:01:16,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769943429] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:16,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:16,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-08 17:01:16,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870826842]
[2024-11-08 17:01:16,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:16,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-08 17:01:16,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:16,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-08 17:01:16,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2024-11-08 17:01:16,188 INFO L87 Difference]: Start difference. First operand 247 states and 281 transitions. Second operand has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 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)
[2024-11-08 17:01:17,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:17,128 INFO L93 Difference]: Finished difference Result 274 states and 312 transitions.
[2024-11-08 17:01:17,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 17:01:17,128 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 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
[2024-11-08 17:01:17,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:17,130 INFO L225 Difference]: With dead ends: 274
[2024-11-08 17:01:17,130 INFO L226 Difference]: Without dead ends: 274
[2024-11-08 17:01:17,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182
[2024-11-08 17:01:17,131 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 108 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:17,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1052 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 17:01:17,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states.
[2024-11-08 17:01:17,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 246.
[2024-11-08 17:01:17,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 173 states have (on average 1.6184971098265897) internal successors, (280), 245 states have internal predecessors, (280), 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)
[2024-11-08 17:01:17,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 280 transitions.
[2024-11-08 17:01:17,138 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 280 transitions. Word has length 30
[2024-11-08 17:01:17,138 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:17,139 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 280 transitions.
[2024-11-08 17:01:17,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 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)
[2024-11-08 17:01:17,139 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 280 transitions.
[2024-11-08 17:01:17,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2024-11-08 17:01:17,140 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:17,140 INFO L215 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]
[2024-11-08 17:01:17,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2024-11-08 17:01:17,140 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:17,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:17,141 INFO L85 PathProgramCache]: Analyzing trace with hash 2060807890, now seen corresponding path program 1 times
[2024-11-08 17:01:17,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:17,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877979683]
[2024-11-08 17:01:17,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:17,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:18,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:18,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:18,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877979683]
[2024-11-08 17:01:18,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877979683] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:01:18,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485927035]
[2024-11-08 17:01:18,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:18,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:01:18,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:01:18,185 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:01:18,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 17:01:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:18,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 45 conjuncts are in the unsatisfiable core
[2024-11-08 17:01:18,439 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:01:18,565 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 13 treesize of output 9
[2024-11-08 17:01:18,573 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 13 treesize of output 9
[2024-11-08 17:01:18,705 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
[2024-11-08 17:01:18,712 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
[2024-11-08 17:01:18,785 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 54 treesize of output 34
[2024-11-08 17:01:18,793 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 54 treesize of output 34
[2024-11-08 17:01:18,872 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 54 treesize of output 34
[2024-11-08 17:01:18,878 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 54 treesize of output 34
[2024-11-08 17:01:18,915 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 42 treesize of output 30
[2024-11-08 17:01:18,978 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 13 treesize of output 3
[2024-11-08 17:01:18,983 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 13 treesize of output 3
[2024-11-08 17:01:19,000 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
[2024-11-08 17:01:19,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:19,037 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:01:19,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:19,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485927035] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:01:19,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:01:19,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 9] total 19
[2024-11-08 17:01:19,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596635411]
[2024-11-08 17:01:19,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:01:19,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-08 17:01:19,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:19,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-08 17:01:19,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342
[2024-11-08 17:01:19,295 INFO L87 Difference]: Start difference. First operand 246 states and 280 transitions. Second operand has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 19 states have internal predecessors, (65), 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)
[2024-11-08 17:01:20,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:20,388 INFO L93 Difference]: Finished difference Result 326 states and 371 transitions.
[2024-11-08 17:01:20,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-11-08 17:01:20,389 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 19 states have internal predecessors, (65), 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 34
[2024-11-08 17:01:20,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:20,391 INFO L225 Difference]: With dead ends: 326
[2024-11-08 17:01:20,391 INFO L226 Difference]: Without dead ends: 326
[2024-11-08 17:01:20,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600
[2024-11-08 17:01:20,392 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 196 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 3341 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:20,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 3341 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 17:01:20,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states.
[2024-11-08 17:01:20,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 274.
[2024-11-08 17:01:20,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 201 states have (on average 1.5422885572139304) internal successors, (310), 273 states have internal predecessors, (310), 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)
[2024-11-08 17:01:20,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 310 transitions.
[2024-11-08 17:01:20,400 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 310 transitions. Word has length 34
[2024-11-08 17:01:20,401 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:20,401 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 310 transitions.
[2024-11-08 17:01:20,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 19 states have internal predecessors, (65), 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)
[2024-11-08 17:01:20,401 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 310 transitions.
[2024-11-08 17:01:20,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2024-11-08 17:01:20,402 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:20,402 INFO L215 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]
[2024-11-08 17:01:20,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-08 17:01:20,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25
[2024-11-08 17:01:20,603 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:20,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:20,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1111242664, now seen corresponding path program 1 times
[2024-11-08 17:01:20,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:20,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031788601]
[2024-11-08 17:01:20,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:20,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:21,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:21,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:21,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031788601]
[2024-11-08 17:01:21,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031788601] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:21,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:21,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-11-08 17:01:21,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795242483]
[2024-11-08 17:01:21,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:21,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-08 17:01:21,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:21,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-08 17:01:21,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110
[2024-11-08 17:01:21,068 INFO L87 Difference]: Start difference. First operand 274 states and 310 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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)
[2024-11-08 17:01:21,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:21,552 INFO L93 Difference]: Finished difference Result 276 states and 312 transitions.
[2024-11-08 17:01:21,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-08 17:01:21,552 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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 34
[2024-11-08 17:01:21,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:21,554 INFO L225 Difference]: With dead ends: 276
[2024-11-08 17:01:21,554 INFO L226 Difference]: Without dead ends: 276
[2024-11-08 17:01:21,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342
[2024-11-08 17:01:21,555 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 74 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:21,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 2260 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:01:21,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states.
[2024-11-08 17:01:21,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276.
[2024-11-08 17:01:21,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 203 states have (on average 1.5369458128078817) internal successors, (312), 275 states have internal predecessors, (312), 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)
[2024-11-08 17:01:21,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 312 transitions.
[2024-11-08 17:01:21,563 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 312 transitions. Word has length 34
[2024-11-08 17:01:21,563 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:21,563 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 312 transitions.
[2024-11-08 17:01:21,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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)
[2024-11-08 17:01:21,563 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 312 transitions.
[2024-11-08 17:01:21,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2024-11-08 17:01:21,564 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:21,564 INFO L215 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]
[2024-11-08 17:01:21,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2024-11-08 17:01:21,565 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:21,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:21,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1186879788, now seen corresponding path program 1 times
[2024-11-08 17:01:21,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:21,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768580498]
[2024-11-08 17:01:21,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:21,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:22,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:22,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:22,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768580498]
[2024-11-08 17:01:22,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768580498] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:22,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:22,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14
[2024-11-08 17:01:22,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71230147]
[2024-11-08 17:01:22,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:22,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-08 17:01:22,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:22,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-08 17:01:22,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182
[2024-11-08 17:01:22,892 INFO L87 Difference]: Start difference. First operand 276 states and 312 transitions. Second operand has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 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)
[2024-11-08 17:01:23,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:23,901 INFO L93 Difference]: Finished difference Result 276 states and 310 transitions.
[2024-11-08 17:01:23,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-11-08 17:01:23,902 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 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
[2024-11-08 17:01:23,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:23,903 INFO L225 Difference]: With dead ends: 276
[2024-11-08 17:01:23,903 INFO L226 Difference]: Without dead ends: 276
[2024-11-08 17:01:23,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552
[2024-11-08 17:01:23,904 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 73 mSDsluCounter, 2377 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:23,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 2618 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 17:01:23,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states.
[2024-11-08 17:01:23,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276.
[2024-11-08 17:01:23,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 203 states have (on average 1.5270935960591132) internal successors, (310), 275 states have internal predecessors, (310), 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)
[2024-11-08 17:01:23,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 310 transitions.
[2024-11-08 17:01:23,912 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 310 transitions. Word has length 36
[2024-11-08 17:01:23,912 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:23,912 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 310 transitions.
[2024-11-08 17:01:23,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 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)
[2024-11-08 17:01:23,913 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 310 transitions.
[2024-11-08 17:01:23,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2024-11-08 17:01:23,913 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:23,913 INFO L215 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, 1, 1, 1, 1, 1]
[2024-11-08 17:01:23,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2024-11-08 17:01:23,914 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:23,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:23,914 INFO L85 PathProgramCache]: Analyzing trace with hash 130871321, now seen corresponding path program 1 times
[2024-11-08 17:01:23,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:23,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272608095]
[2024-11-08 17:01:23,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:23,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:24,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-08 17:01:24,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:24,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272608095]
[2024-11-08 17:01:24,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272608095] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:24,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:24,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:01:24,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929088784]
[2024-11-08 17:01:24,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:24,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:01:24,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:24,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:01:24,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:01:24,205 INFO L87 Difference]: Start difference. First operand 276 states and 310 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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)
[2024-11-08 17:01:24,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:24,299 INFO L93 Difference]: Finished difference Result 284 states and 318 transitions.
[2024-11-08 17:01:24,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:01:24,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 41
[2024-11-08 17:01:24,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:24,302 INFO L225 Difference]: With dead ends: 284
[2024-11-08 17:01:24,302 INFO L226 Difference]: Without dead ends: 284
[2024-11-08 17:01:24,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:01:24,303 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 3 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:24,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1004 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:01:24,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states.
[2024-11-08 17:01:24,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 282.
[2024-11-08 17:01:24,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 209 states have (on average 1.5119617224880382) internal successors, (316), 281 states have internal predecessors, (316), 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)
[2024-11-08 17:01:24,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 316 transitions.
[2024-11-08 17:01:24,311 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 316 transitions. Word has length 41
[2024-11-08 17:01:24,311 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:24,311 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 316 transitions.
[2024-11-08 17:01:24,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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)
[2024-11-08 17:01:24,312 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 316 transitions.
[2024-11-08 17:01:24,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2024-11-08 17:01:24,312 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:24,312 INFO L215 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, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:24,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2024-11-08 17:01:24,313 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:24,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:24,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1197994507, now seen corresponding path program 1 times
[2024-11-08 17:01:24,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:24,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834585312]
[2024-11-08 17:01:24,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:24,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:24,585 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:01:24,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:24,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834585312]
[2024-11-08 17:01:24,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834585312] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:24,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:24,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 17:01:24,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348504078]
[2024-11-08 17:01:24,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:24,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 17:01:24,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:24,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 17:01:24,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:01:24,589 INFO L87 Difference]: Start difference. First operand 282 states and 316 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 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)
[2024-11-08 17:01:25,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:25,338 INFO L93 Difference]: Finished difference Result 354 states and 401 transitions.
[2024-11-08 17:01:25,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 17:01:25,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 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 43
[2024-11-08 17:01:25,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:25,340 INFO L225 Difference]: With dead ends: 354
[2024-11-08 17:01:25,340 INFO L226 Difference]: Without dead ends: 354
[2024-11-08 17:01:25,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-11-08 17:01:25,341 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 220 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:25,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 656 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 17:01:25,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states.
[2024-11-08 17:01:25,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 286.
[2024-11-08 17:01:25,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 215 states have (on average 1.5116279069767442) internal successors, (325), 285 states have internal predecessors, (325), 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)
[2024-11-08 17:01:25,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 325 transitions.
[2024-11-08 17:01:25,350 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 325 transitions. Word has length 43
[2024-11-08 17:01:25,350 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:25,351 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 325 transitions.
[2024-11-08 17:01:25,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 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)
[2024-11-08 17:01:25,351 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 325 transitions.
[2024-11-08 17:01:25,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2024-11-08 17:01:25,352 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:25,352 INFO L215 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, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:25,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2024-11-08 17:01:25,352 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:25,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:25,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1197994508, now seen corresponding path program 1 times
[2024-11-08 17:01:25,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:25,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279601080]
[2024-11-08 17:01:25,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:25,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:25,965 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:01:25,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:25,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279601080]
[2024-11-08 17:01:25,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279601080] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:01:25,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:01:25,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-08 17:01:25,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102885171]
[2024-11-08 17:01:25,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:01:25,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-08 17:01:25,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:25,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-08 17:01:25,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-11-08 17:01:25,968 INFO L87 Difference]: Start difference. First operand 286 states and 325 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 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)
[2024-11-08 17:01:26,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:26,658 INFO L93 Difference]: Finished difference Result 375 states and 432 transitions.
[2024-11-08 17:01:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-08 17:01:26,659 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 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 43
[2024-11-08 17:01:26,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:26,661 INFO L225 Difference]: With dead ends: 375
[2024-11-08 17:01:26,661 INFO L226 Difference]: Without dead ends: 375
[2024-11-08 17:01:26,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156
[2024-11-08 17:01:26,662 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 250 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:26,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 992 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 17:01:26,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states.
[2024-11-08 17:01:26,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 354.
[2024-11-08 17:01:26,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 283 states have (on average 1.5229681978798586) internal successors, (431), 353 states have internal predecessors, (431), 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)
[2024-11-08 17:01:26,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 431 transitions.
[2024-11-08 17:01:26,673 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 431 transitions. Word has length 43
[2024-11-08 17:01:26,673 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:26,673 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 431 transitions.
[2024-11-08 17:01:26,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 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)
[2024-11-08 17:01:26,674 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 431 transitions.
[2024-11-08 17:01:26,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2024-11-08 17:01:26,674 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:26,674 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:26,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2024-11-08 17:01:26,675 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:26,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:26,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1007470914, now seen corresponding path program 2 times
[2024-11-08 17:01:26,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:26,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424397115]
[2024-11-08 17:01:26,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:26,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:28,202 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:28,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:28,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424397115]
[2024-11-08 17:01:28,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424397115] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:01:28,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193778510]
[2024-11-08 17:01:28,203 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 17:01:28,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:01:28,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:01:28,206 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:01:28,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 17:01:28,439 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 17:01:28,440 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 17:01:28,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 66 conjuncts are in the unsatisfiable core
[2024-11-08 17:01:28,450 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:01:28,462 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
[2024-11-08 17:01:28,568 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-08 17:01:28,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-11-08 17:01:28,670 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-08 17:01:28,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17
[2024-11-08 17:01:28,778 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
[2024-11-08 17:01:28,845 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 44 treesize of output 32
[2024-11-08 17:01:29,016 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:01:29,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32
[2024-11-08 17:01:29,114 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
[2024-11-08 17:01:29,124 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
[2024-11-08 17:01:29,359 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 56
[2024-11-08 17:01:29,383 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
[2024-11-08 17:01:29,895 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
[2024-11-08 17:01:29,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 43
[2024-11-08 17:01:30,013 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 7 treesize of output 3
[2024-11-08 17:01:30,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 19
[2024-11-08 17:01:30,238 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 25 treesize of output 5
[2024-11-08 17:01:30,348 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 26 treesize of output 14
[2024-11-08 17:01:30,380 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:30,380 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:01:39,339 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#iter~0#1.base_57| Int) (v_ArrVal_1044 Int) (v_ArrVal_1045 Int) (v_ArrVal_1049 Int) (|v_ULTIMATE.start_main_~item~0#1.base_19| Int) (|v_ULTIMATE.start_main_~node~0#1.base_19| Int)) (let ((.cse0 (store (store (store |c_#valid| |v_ULTIMATE.start_main_~node~0#1.base_19| v_ArrVal_1044) |v_ULTIMATE.start_main_~item~0#1.base_19| v_ArrVal_1045) |v_ULTIMATE.start_main_~#iter~0#1.base_57| v_ArrVal_1049))) (or (= (select .cse0 |c_ULTIMATE.start_main_~data~0#1.base|) 1) (< |v_ULTIMATE.start_main_~#iter~0#1.base_57| (+ |c_#StackHeapBarrier| 1)) (not (= (select .cse0 |v_ULTIMATE.start_main_~item~0#1.base_19|) 1)) (not (= (select .cse0 |v_ULTIMATE.start_main_~node~0#1.base_19|) 1))))) is different from false
[2024-11-08 17:01:43,391 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#iter~0#1.base_57| Int) (v_ArrVal_1044 Int) (v_ArrVal_1045 Int) (v_ArrVal_1049 Int) (|v_ULTIMATE.start_main_~item~0#1.base_19| Int) (|v_ULTIMATE.start_main_~node~0#1.base_19| Int)) (let ((.cse0 (store (store (store |c_#valid| |v_ULTIMATE.start_main_~node~0#1.base_19| v_ArrVal_1044) |v_ULTIMATE.start_main_~item~0#1.base_19| v_ArrVal_1045) |v_ULTIMATE.start_main_~#iter~0#1.base_57| v_ArrVal_1049))) (or (< |v_ULTIMATE.start_main_~#iter~0#1.base_57| (+ |c_#StackHeapBarrier| 1)) (not (= (select .cse0 |v_ULTIMATE.start_main_~item~0#1.base_19|) 1)) (= (select .cse0 |c_ULTIMATE.start_main_~item~0#1.base|) 1) (not (= (select .cse0 |v_ULTIMATE.start_main_~node~0#1.base_19|) 1))))) is different from false
[2024-11-08 17:01:43,469 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked.
[2024-11-08 17:01:43,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193778510] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:01:43,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:01:43,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 20, 19] total 47
[2024-11-08 17:01:43,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123981025]
[2024-11-08 17:01:43,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:01:43,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states
[2024-11-08 17:01:43,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:43,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants.
[2024-11-08 17:01:43,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1914, Unknown=2, NotChecked=178, Total=2256
[2024-11-08 17:01:43,473 INFO L87 Difference]: Start difference. First operand 354 states and 431 transitions. Second operand has 48 states, 47 states have (on average 2.5319148936170213) internal successors, (119), 48 states have internal predecessors, (119), 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)
[2024-11-08 17:01:49,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:01:49,923 INFO L93 Difference]: Finished difference Result 398 states and 483 transitions.
[2024-11-08 17:01:49,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2024-11-08 17:01:49,923 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.5319148936170213) internal successors, (119), 48 states have internal predecessors, (119), 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 45
[2024-11-08 17:01:49,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:01:49,925 INFO L225 Difference]: With dead ends: 398
[2024-11-08 17:01:49,925 INFO L226 Difference]: Without dead ends: 398
[2024-11-08 17:01:49,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 59 SyntacticMatches, 5 SemanticMatches, 66 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=512, Invalid=3784, Unknown=2, NotChecked=258, Total=4556
[2024-11-08 17:01:49,928 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 441 mSDsluCounter, 4390 mSDsCounter, 0 mSdLazyCounter, 4233 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 4619 SdHoareTripleChecker+Invalid, 4725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 471 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:01:49,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 4619 Invalid, 4725 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 4233 Invalid, 0 Unknown, 471 Unchecked, 4.3s Time]
[2024-11-08 17:01:49,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states.
[2024-11-08 17:01:49,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 353.
[2024-11-08 17:01:49,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 283 states have (on average 1.519434628975265) internal successors, (430), 352 states have internal predecessors, (430), 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)
[2024-11-08 17:01:49,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 430 transitions.
[2024-11-08 17:01:49,936 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 430 transitions. Word has length 45
[2024-11-08 17:01:49,936 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:01:49,936 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 430 transitions.
[2024-11-08 17:01:49,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.5319148936170213) internal successors, (119), 48 states have internal predecessors, (119), 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)
[2024-11-08 17:01:49,937 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 430 transitions.
[2024-11-08 17:01:49,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2024-11-08 17:01:49,937 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:01:49,938 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:01:49,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 17:01:50,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31
[2024-11-08 17:01:50,142 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:01:50,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:01:50,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1007470915, now seen corresponding path program 1 times
[2024-11-08 17:01:50,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:01:50,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754153362]
[2024-11-08 17:01:50,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:50,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:01:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:52,157 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:52,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:01:52,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754153362]
[2024-11-08 17:01:52,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754153362] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:01:52,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928314711]
[2024-11-08 17:01:52,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:01:52,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:01:52,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:01:52,159 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:01:52,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 17:01:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:01:52,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 72 conjuncts are in the unsatisfiable core
[2024-11-08 17:01:52,434 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:01:52,448 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
[2024-11-08 17:01:52,452 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
[2024-11-08 17:01:52,615 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size
[2024-11-08 17:01:52,615 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 16
[2024-11-08 17:01:52,623 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
[2024-11-08 17:01:52,689 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-08 17:01:52,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-11-08 17:01:52,737 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size
[2024-11-08 17:01:52,738 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 16
[2024-11-08 17:01:52,835 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 19 treesize of output 1
[2024-11-08 17:01:52,845 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 13 treesize of output 9
[2024-11-08 17:01:53,044 INFO L349 Elim1Store]: treesize reduction 4, result has 71.4 percent of original size
[2024-11-08 17:01:53,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17
[2024-11-08 17:01:53,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15
[2024-11-08 17:01:53,137 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
[2024-11-08 17:01:53,144 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
[2024-11-08 17:01:53,250 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 105 treesize of output 69
[2024-11-08 17:01:53,259 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 96 treesize of output 68
[2024-11-08 17:01:53,411 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 105 treesize of output 69
[2024-11-08 17:01:53,419 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 96 treesize of output 68
[2024-11-08 17:01:53,590 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 77 treesize of output 21
[2024-11-08 17:01:53,604 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 17 treesize of output 3
[2024-11-08 17:01:53,686 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 37 treesize of output 14
[2024-11-08 17:01:53,694 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
[2024-11-08 17:01:53,771 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
[2024-11-08 17:01:53,776 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
[2024-11-08 17:01:53,824 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:53,824 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:01:56,222 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:01:56,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928314711] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:01:56,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:01:56,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 13] total 40
[2024-11-08 17:01:56,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061943988]
[2024-11-08 17:01:56,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:01:56,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states
[2024-11-08 17:01:56,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:01:56,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants.
[2024-11-08 17:01:56,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1523, Unknown=0, NotChecked=0, Total=1640
[2024-11-08 17:01:56,225 INFO L87 Difference]: Start difference. First operand 353 states and 430 transitions. Second operand has 41 states, 40 states have (on average 3.1) internal successors, (124), 41 states have internal predecessors, (124), 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)
[2024-11-08 17:02:02,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:02:02,082 INFO L93 Difference]: Finished difference Result 396 states and 482 transitions.
[2024-11-08 17:02:02,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-11-08 17:02:02,082 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 3.1) internal successors, (124), 41 states have internal predecessors, (124), 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 45
[2024-11-08 17:02:02,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:02:02,084 INFO L225 Difference]: With dead ends: 396
[2024-11-08 17:02:02,084 INFO L226 Difference]: Without dead ends: 396
[2024-11-08 17:02:02,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=364, Invalid=2828, Unknown=0, NotChecked=0, Total=3192
[2024-11-08 17:02:02,086 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 526 mSDsluCounter, 3610 mSDsCounter, 0 mSdLazyCounter, 4086 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 3837 SdHoareTripleChecker+Invalid, 4107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:02:02,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 3837 Invalid, 4107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 4086 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2024-11-08 17:02:02,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states.
[2024-11-08 17:02:02,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 352.
[2024-11-08 17:02:02,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 283 states have (on average 1.5159010600706713) internal successors, (429), 351 states have internal predecessors, (429), 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)
[2024-11-08 17:02:02,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 429 transitions.
[2024-11-08 17:02:02,095 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 429 transitions. Word has length 45
[2024-11-08 17:02:02,095 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:02:02,095 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 429 transitions.
[2024-11-08 17:02:02,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 3.1) internal successors, (124), 41 states have internal predecessors, (124), 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)
[2024-11-08 17:02:02,096 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 429 transitions.
[2024-11-08 17:02:02,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2024-11-08 17:02:02,096 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:02:02,097 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:02:02,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-08 17:02:02,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:02:02,301 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr95REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:02:02,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:02:02,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1711369968, now seen corresponding path program 1 times
[2024-11-08 17:02:02,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:02:02,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724779399]
[2024-11-08 17:02:02,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:02:02,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:02:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:02:02,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:02:02,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:02:02,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724779399]
[2024-11-08 17:02:02,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724779399] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:02:02,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:02:02,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-08 17:02:02,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088015534]
[2024-11-08 17:02:02,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:02:02,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 17:02:02,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:02:02,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 17:02:02,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:02:02,499 INFO L87 Difference]: Start difference. First operand 352 states and 429 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 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)
[2024-11-08 17:02:02,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:02:02,874 INFO L93 Difference]: Finished difference Result 431 states and 495 transitions.
[2024-11-08 17:02:02,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-08 17:02:02,874 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 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 47
[2024-11-08 17:02:02,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:02:02,876 INFO L225 Difference]: With dead ends: 431
[2024-11-08 17:02:02,876 INFO L226 Difference]: Without dead ends: 431
[2024-11-08 17:02:02,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156
[2024-11-08 17:02:02,877 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 247 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:02:02,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 1451 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:02:02,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states.
[2024-11-08 17:02:02,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 351.
[2024-11-08 17:02:02,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 282 states have (on average 1.5) internal successors, (423), 350 states have internal predecessors, (423), 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)
[2024-11-08 17:02:02,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 423 transitions.
[2024-11-08 17:02:02,886 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 423 transitions. Word has length 47
[2024-11-08 17:02:02,887 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:02:02,887 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 423 transitions.
[2024-11-08 17:02:02,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 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)
[2024-11-08 17:02:02,887 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 423 transitions.
[2024-11-08 17:02:02,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2024-11-08 17:02:02,888 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:02:02,888 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:02:02,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2024-11-08 17:02:02,888 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr95REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:02:02,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:02:02,889 INFO L85 PathProgramCache]: Analyzing trace with hash -697449677, now seen corresponding path program 1 times
[2024-11-08 17:02:02,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:02:02,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932967944]
[2024-11-08 17:02:02,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:02:02,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:02:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:02:03,065 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:02:03,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:02:03,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932967944]
[2024-11-08 17:02:03,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932967944] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:02:03,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:02:03,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:02:03,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165672653]
[2024-11-08 17:02:03,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:02:03,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:02:03,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:02:03,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:02:03,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:02:03,069 INFO L87 Difference]: Start difference. First operand 351 states and 423 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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)
[2024-11-08 17:02:03,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:02:03,482 INFO L93 Difference]: Finished difference Result 355 states and 428 transitions.
[2024-11-08 17:02:03,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:02:03,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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 49
[2024-11-08 17:02:03,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:02:03,484 INFO L225 Difference]: With dead ends: 355
[2024-11-08 17:02:03,484 INFO L226 Difference]: Without dead ends: 355
[2024-11-08 17:02:03,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:02:03,485 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 64 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:02:03,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 438 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 17:02:03,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states.
[2024-11-08 17:02:03,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355.
[2024-11-08 17:02:03,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 286 states have (on average 1.4965034965034965) internal successors, (428), 354 states have internal predecessors, (428), 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)
[2024-11-08 17:02:03,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 428 transitions.
[2024-11-08 17:02:03,493 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 428 transitions. Word has length 49
[2024-11-08 17:02:03,494 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:02:03,494 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 428 transitions.
[2024-11-08 17:02:03,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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)
[2024-11-08 17:02:03,494 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 428 transitions.
[2024-11-08 17:02:03,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2024-11-08 17:02:03,495 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:02:03,495 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:02:03,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2024-11-08 17:02:03,495 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr96REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:02:03,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:02:03,496 INFO L85 PathProgramCache]: Analyzing trace with hash -697449676, now seen corresponding path program 1 times
[2024-11-08 17:02:03,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:02:03,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449835844]
[2024-11-08 17:02:03,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:02:03,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:02:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:02:04,331 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:02:04,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:02:04,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449835844]
[2024-11-08 17:02:04,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449835844] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:02:04,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:02:04,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-11-08 17:02:04,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840946002]
[2024-11-08 17:02:04,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:02:04,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 17:02:04,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:02:04,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 17:02:04,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2024-11-08 17:02:04,337 INFO L87 Difference]: Start difference. First operand 355 states and 428 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 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)
[2024-11-08 17:02:05,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:02:05,295 INFO L93 Difference]: Finished difference Result 430 states and 490 transitions.
[2024-11-08 17:02:05,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-11-08 17:02:05,296 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 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 49
[2024-11-08 17:02:05,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:02:05,297 INFO L225 Difference]: With dead ends: 430
[2024-11-08 17:02:05,297 INFO L226 Difference]: Without dead ends: 430
[2024-11-08 17:02:05,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272
[2024-11-08 17:02:05,298 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 361 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 17:02:05,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 976 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 17:02:05,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states.
[2024-11-08 17:02:05,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 386.
[2024-11-08 17:02:05,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 317 states have (on average 1.5394321766561514) internal successors, (488), 385 states have internal predecessors, (488), 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)
[2024-11-08 17:02:05,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 488 transitions.
[2024-11-08 17:02:05,307 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 488 transitions. Word has length 49
[2024-11-08 17:02:05,308 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:02:05,308 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 488 transitions.
[2024-11-08 17:02:05,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 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)
[2024-11-08 17:02:05,308 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 488 transitions.
[2024-11-08 17:02:05,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2024-11-08 17:02:05,309 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:02:05,309 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:02:05,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2024-11-08 17:02:05,310 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:02:05,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:02:05,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1960872387, now seen corresponding path program 1 times
[2024-11-08 17:02:05,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:02:05,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140022521]
[2024-11-08 17:02:05,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:02:05,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:02:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:02:06,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:02:06,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:02:06,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140022521]
[2024-11-08 17:02:06,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140022521] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:02:06,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180302203]
[2024-11-08 17:02:06,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:02:06,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:02:06,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:02:06,146 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:02:06,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 17:02:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:02:06,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 40 conjuncts are in the unsatisfiable core
[2024-11-08 17:02:06,461 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:02:06,521 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 13 treesize of output 9
[2024-11-08 17:02:06,529 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 13 treesize of output 9
[2024-11-08 17:02:06,653 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
[2024-11-08 17:02:06,724 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
[2024-11-08 17:02:06,808 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
[2024-11-08 17:02:06,837 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 7 treesize of output 3
[2024-11-08 17:02:07,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:02:07,009 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:02:07,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:02:07,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180302203] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:02:07,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:02:07,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 8] total 20
[2024-11-08 17:02:07,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200252052]
[2024-11-08 17:02:07,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:02:07,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-11-08 17:02:07,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:02:07,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-11-08 17:02:07,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380
[2024-11-08 17:02:07,295 INFO L87 Difference]: Start difference. First operand 386 states and 488 transitions. Second operand has 20 states, 20 states have (on average 5.6) internal successors, (112), 20 states have internal predecessors, (112), 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)
[2024-11-08 17:02:08,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:02:08,046 INFO L93 Difference]: Finished difference Result 479 states and 595 transitions.
[2024-11-08 17:02:08,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-11-08 17:02:08,047 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.6) internal successors, (112), 20 states have internal predecessors, (112), 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 53
[2024-11-08 17:02:08,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:02:08,048 INFO L225 Difference]: With dead ends: 479
[2024-11-08 17:02:08,048 INFO L226 Difference]: Without dead ends: 479
[2024-11-08 17:02:08,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600
[2024-11-08 17:02:08,050 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 175 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2198 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 17:02:08,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2198 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 17:02:08,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states.
[2024-11-08 17:02:08,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 399.
[2024-11-08 17:02:08,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 330 states have (on average 1.518181818181818) internal successors, (501), 398 states have internal predecessors, (501), 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)
[2024-11-08 17:02:08,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 501 transitions.
[2024-11-08 17:02:08,060 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 501 transitions. Word has length 53
[2024-11-08 17:02:08,060 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:02:08,060 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 501 transitions.
[2024-11-08 17:02:08,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.6) internal successors, (112), 20 states have internal predecessors, (112), 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)
[2024-11-08 17:02:08,061 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 501 transitions.
[2024-11-08 17:02:08,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2024-11-08 17:02:08,061 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:02:08,062 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:02:08,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-08 17:02:08,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36
[2024-11-08 17:02:08,263 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr104REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:02:08,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:02:08,263 INFO L85 PathProgramCache]: Analyzing trace with hash 97582723, now seen corresponding path program 1 times
[2024-11-08 17:02:08,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:02:08,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757136056]
[2024-11-08 17:02:08,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:02:08,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:02:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:02:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:02:08,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:02:08,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757136056]
[2024-11-08 17:02:08,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757136056] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:02:08,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:02:08,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-08 17:02:08,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817840353]
[2024-11-08 17:02:08,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:02:08,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 17:02:08,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:02:08,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 17:02:08,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:02:08,492 INFO L87 Difference]: Start difference. First operand 399 states and 501 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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)
[2024-11-08 17:02:08,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:02:08,844 INFO L93 Difference]: Finished difference Result 446 states and 509 transitions.
[2024-11-08 17:02:08,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-08 17:02:08,844 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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 54
[2024-11-08 17:02:08,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:02:08,846 INFO L225 Difference]: With dead ends: 446
[2024-11-08 17:02:08,846 INFO L226 Difference]: Without dead ends: 446
[2024-11-08 17:02:08,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156
[2024-11-08 17:02:08,847 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 240 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:02:08,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 1451 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:02:08,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states.
[2024-11-08 17:02:08,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 399.
[2024-11-08 17:02:08,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 330 states have (on average 1.5151515151515151) internal successors, (500), 398 states have internal predecessors, (500), 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)
[2024-11-08 17:02:08,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 500 transitions.
[2024-11-08 17:02:08,859 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 500 transitions. Word has length 54
[2024-11-08 17:02:08,859 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:02:08,859 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 500 transitions.
[2024-11-08 17:02:08,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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)
[2024-11-08 17:02:08,860 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 500 transitions.
[2024-11-08 17:02:08,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-11-08 17:02:08,861 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:02:08,861 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:02:08,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37
[2024-11-08 17:02:08,861 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:02:08,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:02:08,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1835630929, now seen corresponding path program 1 times
[2024-11-08 17:02:08,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:02:08,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131406892]
[2024-11-08 17:02:08,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:02:08,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:02:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:02:12,938 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:02:12,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:02:12,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131406892]
[2024-11-08 17:02:12,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131406892] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:02:12,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025431419]
[2024-11-08 17:02:12,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:02:12,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:02:12,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:02:12,941 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:02:12,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 17:02:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:02:13,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 109 conjuncts are in the unsatisfiable core
[2024-11-08 17:02:13,266 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:02:13,272 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
[2024-11-08 17:02:13,345 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2024-11-08 17:02:13,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14
[2024-11-08 17:02:13,421 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
[2024-11-08 17:02:13,435 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 25 treesize of output 13
[2024-11-08 17:02:13,582 INFO L349 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size
[2024-11-08 17:02:13,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 36
[2024-11-08 17:02:13,697 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 26 treesize of output 19
[2024-11-08 17:02:13,727 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 26 treesize of output 19
[2024-11-08 17:02:13,807 INFO L349 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size
[2024-11-08 17:02:13,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 36
[2024-11-08 17:02:13,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25
[2024-11-08 17:02:14,117 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 81 treesize of output 44
[2024-11-08 17:02:14,139 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 19 treesize of output 1
[2024-11-08 17:02:14,498 INFO L349 Elim1Store]: treesize reduction 100, result has 21.3 percent of original size
[2024-11-08 17:02:14,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38
[2024-11-08 17:02:14,649 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
[2024-11-08 17:02:14,671 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
[2024-11-08 17:02:15,064 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 206 treesize of output 157
[2024-11-08 17:02:15,076 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 212 treesize of output 160
[2024-11-08 17:02:16,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 230 treesize of output 154
[2024-11-08 17:02:16,237 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 206 treesize of output 154
[2024-11-08 17:02:16,796 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 35 treesize of output 7
[2024-11-08 17:02:17,005 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 204 treesize of output 148
[2024-11-08 17:02:17,011 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 158 treesize of output 103
[2024-11-08 17:02:17,605 INFO L349 Elim1Store]: treesize reduction 70, result has 4.1 percent of original size
[2024-11-08 17:02:17,605 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 114 treesize of output 46
[2024-11-08 17:02:17,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21
[2024-11-08 17:02:17,832 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
[2024-11-08 17:02:18,346 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 7 treesize of output 3
[2024-11-08 17:02:18,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:02:18,584 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 66 treesize of output 30
[2024-11-08 17:02:18,990 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:02:18,991 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:02:24,654 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:02:24,655 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 56
[2024-11-08 17:02:24,692 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:02:24,693 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 246 treesize of output 244
[2024-11-08 17:02:24,715 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 578 treesize of output 566
[2024-11-08 17:02:24,865 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:02:24,865 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 382 treesize of output 378
[2024-11-08 17:02:27,611 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:02:27,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025431419] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:02:27,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:02:27,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 27] total 77
[2024-11-08 17:02:27,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74222681]
[2024-11-08 17:02:27,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:02:27,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 78 states
[2024-11-08 17:02:27,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:02:27,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants.
[2024-11-08 17:02:27,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=5687, Unknown=10, NotChecked=0, Total=6006
[2024-11-08 17:02:27,617 INFO L87 Difference]: Start difference. First operand 399 states and 500 transitions. Second operand has 78 states, 77 states have (on average 2.012987012987013) internal successors, (155), 78 states have internal predecessors, (155), 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)
[2024-11-08 17:02:44,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:02:44,306 INFO L93 Difference]: Finished difference Result 431 states and 537 transitions.
[2024-11-08 17:02:44,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states.
[2024-11-08 17:02:44,307 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 77 states have (on average 2.012987012987013) internal successors, (155), 78 states have internal predecessors, (155), 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 55
[2024-11-08 17:02:44,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:02:44,309 INFO L225 Difference]: With dead ends: 431
[2024-11-08 17:02:44,309 INFO L226 Difference]: Without dead ends: 431
[2024-11-08 17:02:44,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1911 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=941, Invalid=10391, Unknown=10, NotChecked=0, Total=11342
[2024-11-08 17:02:44,313 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 628 mSDsluCounter, 6422 mSDsCounter, 0 mSdLazyCounter, 6860 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 6658 SdHoareTripleChecker+Invalid, 6906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 6860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time
[2024-11-08 17:02:44,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 6658 Invalid, 6906 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 6860 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time]
[2024-11-08 17:02:44,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states.
[2024-11-08 17:02:44,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 404.
[2024-11-08 17:02:44,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 335 states have (on average 1.5134328358208955) internal successors, (507), 403 states have internal predecessors, (507), 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)
[2024-11-08 17:02:44,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 507 transitions.
[2024-11-08 17:02:44,326 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 507 transitions. Word has length 55
[2024-11-08 17:02:44,326 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:02:44,326 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 507 transitions.
[2024-11-08 17:02:44,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 77 states have (on average 2.012987012987013) internal successors, (155), 78 states have internal predecessors, (155), 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)
[2024-11-08 17:02:44,327 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 507 transitions.
[2024-11-08 17:02:44,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-11-08 17:02:44,328 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:02:44,328 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:02:44,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-08 17:02:44,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38
[2024-11-08 17:02:44,529 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:02:44,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:02:44,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1835630928, now seen corresponding path program 1 times
[2024-11-08 17:02:44,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:02:44,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292341768]
[2024-11-08 17:02:44,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:02:44,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:02:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:02:49,011 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:02:49,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:02:49,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292341768]
[2024-11-08 17:02:49,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292341768] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:02:49,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601682693]
[2024-11-08 17:02:49,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:02:49,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:02:49,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:02:49,014 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:02:49,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-08 17:02:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:02:49,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 123 conjuncts are in the unsatisfiable core
[2024-11-08 17:02:49,341 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:02:49,351 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
[2024-11-08 17:02:49,362 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
[2024-11-08 17:02:49,514 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-08 17:02:49,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-11-08 17:02:49,560 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size
[2024-11-08 17:02:49,560 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
[2024-11-08 17:02:49,700 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
[2024-11-08 17:02:49,706 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
[2024-11-08 17:02:49,839 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 51 treesize of output 27
[2024-11-08 17:02:49,859 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 23 treesize of output 11
[2024-11-08 17:02:50,051 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size
[2024-11-08 17:02:50,051 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 1 case distinctions, treesize of input 18 treesize of output 21
[2024-11-08 17:02:50,123 INFO L349 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size
[2024-11-08 17:02:50,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41
[2024-11-08 17:02:50,305 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 52 treesize of output 39
[2024-11-08 17:02:50,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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
[2024-11-08 17:02:50,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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
[2024-11-08 17:02:50,406 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 52 treesize of output 39
[2024-11-08 17:02:50,607 INFO L349 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size
[2024-11-08 17:02:50,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 29
[2024-11-08 17:02:50,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13
[2024-11-08 17:02:50,765 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 43 treesize of output 32
[2024-11-08 17:02:50,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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
[2024-11-08 17:02:50,921 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 34 treesize of output 25
[2024-11-08 17:02:50,934 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 70 treesize of output 34
[2024-11-08 17:02:51,242 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:02:51,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17
[2024-11-08 17:02:51,347 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
[2024-11-08 17:02:51,357 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
[2024-11-08 17:02:51,543 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
[2024-11-08 17:02:51,549 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 151 treesize of output 95
[2024-11-08 17:02:51,744 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
[2024-11-08 17:02:51,750 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 151 treesize of output 95
[2024-11-08 17:02:52,125 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 170 treesize of output 114
[2024-11-08 17:02:52,131 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 23 treesize of output 15
[2024-11-08 17:02:52,582 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:02:52,583 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:02:52,589 INFO L349 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size
[2024-11-08 17:02:52,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 46
[2024-11-08 17:02:52,605 INFO L349 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size
[2024-11-08 17:02:52,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 23
[2024-11-08 17:02:52,721 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 21 treesize of output 20
[2024-11-08 17:02:52,730 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 34 treesize of output 18
[2024-11-08 17:02:52,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 18
[2024-11-08 17:02:52,920 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:02:52,920 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 17 treesize of output 7
[2024-11-08 17:02:52,926 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:02:52,926 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:02:54,783 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:02:54,784 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 43
[2024-11-08 17:03:05,538 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:03:05,538 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 45
[2024-11-08 17:03:05,542 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:03:05,552 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:03:05,552 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 84 treesize of output 84
[2024-11-08 17:03:05,564 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 34 treesize of output 32
[2024-11-08 17:03:05,625 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:03:05,625 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 74 treesize of output 76
[2024-11-08 17:03:05,835 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:03:05,836 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 92
[2024-11-08 17:03:05,867 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:03:05,868 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 300 treesize of output 300
[2024-11-08 17:03:05,900 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:03:05,900 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 288 treesize of output 202
[2024-11-08 17:03:05,929 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:03:05,930 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 190 treesize of output 192
[2024-11-08 17:03:05,943 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:03:05,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:03:05,968 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 1054 treesize of output 1012
[2024-11-08 17:03:06,014 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 58 treesize of output 56
[2024-11-08 17:03:06,026 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
[2024-11-08 17:03:06,144 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 94 treesize of output 92
[2024-11-08 17:03:06,273 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:03:06,274 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 544 treesize of output 532
[2024-11-08 17:03:22,592 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:03:22,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601682693] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:03:22,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:03:22,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 21, 22] total 68
[2024-11-08 17:03:22,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143129042]
[2024-11-08 17:03:22,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:03:22,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states
[2024-11-08 17:03:22,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:03:22,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants.
[2024-11-08 17:03:22,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=4484, Unknown=7, NotChecked=0, Total=4692
[2024-11-08 17:03:22,597 INFO L87 Difference]: Start difference. First operand 404 states and 507 transitions. Second operand has 69 states, 68 states have (on average 2.3088235294117645) internal successors, (157), 69 states have internal predecessors, (157), 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)
[2024-11-08 17:03:50,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:03:50,043 INFO L93 Difference]: Finished difference Result 443 states and 551 transitions.
[2024-11-08 17:03:50,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states.
[2024-11-08 17:03:50,043 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 68 states have (on average 2.3088235294117645) internal successors, (157), 69 states have internal predecessors, (157), 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 55
[2024-11-08 17:03:50,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:03:50,044 INFO L225 Difference]: With dead ends: 443
[2024-11-08 17:03:50,044 INFO L226 Difference]: Without dead ends: 443
[2024-11-08 17:03:50,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1789 ImplicationChecksByTransitivity, 30.4s TimeCoverageRelationStatistics Valid=694, Invalid=9001, Unknown=7, NotChecked=0, Total=9702
[2024-11-08 17:03:50,046 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 650 mSDsluCounter, 5870 mSDsCounter, 0 mSdLazyCounter, 6483 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 6106 SdHoareTripleChecker+Invalid, 6517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 6483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time
[2024-11-08 17:03:50,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 6106 Invalid, 6517 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 6483 Invalid, 0 Unknown, 0 Unchecked, 18.7s Time]
[2024-11-08 17:03:50,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states.
[2024-11-08 17:03:50,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 404.
[2024-11-08 17:03:50,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 335 states have (on average 1.51044776119403) internal successors, (506), 403 states have internal predecessors, (506), 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)
[2024-11-08 17:03:50,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 506 transitions.
[2024-11-08 17:03:50,063 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 506 transitions. Word has length 55
[2024-11-08 17:03:50,063 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:03:50,063 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 506 transitions.
[2024-11-08 17:03:50,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 68 states have (on average 2.3088235294117645) internal successors, (157), 69 states have internal predecessors, (157), 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)
[2024-11-08 17:03:50,063 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 506 transitions.
[2024-11-08 17:03:50,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-08 17:03:50,064 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:03:50,064 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:03:50,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-11-08 17:03:50,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39
[2024-11-08 17:03:50,265 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr104REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:03:50,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:03:50,265 INFO L85 PathProgramCache]: Analyzing trace with hash 202932670, now seen corresponding path program 1 times
[2024-11-08 17:03:50,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:03:50,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062586234]
[2024-11-08 17:03:50,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:03:50,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:03:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:03:51,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:03:51,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:03:51,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062586234]
[2024-11-08 17:03:51,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062586234] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:03:51,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:03:51,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17
[2024-11-08 17:03:51,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673977343]
[2024-11-08 17:03:51,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:03:51,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-11-08 17:03:51,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:03:51,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-11-08 17:03:51,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306
[2024-11-08 17:03:51,719 INFO L87 Difference]: Start difference. First operand 404 states and 506 transitions. Second operand has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:03:54,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:03:54,088 INFO L93 Difference]: Finished difference Result 464 states and 553 transitions.
[2024-11-08 17:03:54,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-11-08 17:03:54,089 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56
[2024-11-08 17:03:54,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:03:54,090 INFO L225 Difference]: With dead ends: 464
[2024-11-08 17:03:54,090 INFO L226 Difference]: Without dead ends: 464
[2024-11-08 17:03:54,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756
[2024-11-08 17:03:54,091 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 195 mSDsluCounter, 1856 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:03:54,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 2004 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2024-11-08 17:03:54,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states.
[2024-11-08 17:03:54,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 404.
[2024-11-08 17:03:54,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 335 states have (on average 1.507462686567164) internal successors, (505), 403 states have internal predecessors, (505), 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)
[2024-11-08 17:03:54,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 505 transitions.
[2024-11-08 17:03:54,109 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 505 transitions. Word has length 56
[2024-11-08 17:03:54,109 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:03:54,109 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 505 transitions.
[2024-11-08 17:03:54,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:03:54,110 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 505 transitions.
[2024-11-08 17:03:54,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-08 17:03:54,111 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:03:54,111 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:03:54,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40
[2024-11-08 17:03:54,111 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr103REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:03:54,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:03:54,112 INFO L85 PathProgramCache]: Analyzing trace with hash 202932669, now seen corresponding path program 1 times
[2024-11-08 17:03:54,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:03:54,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308656432]
[2024-11-08 17:03:54,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:03:54,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:03:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:03:55,255 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:03:55,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:03:55,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308656432]
[2024-11-08 17:03:55,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308656432] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:03:55,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:03:55,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18
[2024-11-08 17:03:55,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692544902]
[2024-11-08 17:03:55,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:03:55,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-08 17:03:55,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:03:55,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-08 17:03:55,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342
[2024-11-08 17:03:55,257 INFO L87 Difference]: Start difference. First operand 404 states and 505 transitions. Second operand has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:03:57,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:03:57,390 INFO L93 Difference]: Finished difference Result 446 states and 549 transitions.
[2024-11-08 17:03:57,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-11-08 17:03:57,391 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56
[2024-11-08 17:03:57,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:03:57,393 INFO L225 Difference]: With dead ends: 446
[2024-11-08 17:03:57,393 INFO L226 Difference]: Without dead ends: 446
[2024-11-08 17:03:57,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=96, Invalid=774, Unknown=0, NotChecked=0, Total=870
[2024-11-08 17:03:57,394 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 157 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 2483 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2024-11-08 17:03:57,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 2483 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2125 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2024-11-08 17:03:57,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states.
[2024-11-08 17:03:57,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 404.
[2024-11-08 17:03:57,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 335 states have (on average 1.5044776119402985) internal successors, (504), 403 states have internal predecessors, (504), 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)
[2024-11-08 17:03:57,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 504 transitions.
[2024-11-08 17:03:57,404 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 504 transitions. Word has length 56
[2024-11-08 17:03:57,404 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:03:57,404 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 504 transitions.
[2024-11-08 17:03:57,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:03:57,405 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 504 transitions.
[2024-11-08 17:03:57,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2024-11-08 17:03:57,405 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:03:57,405 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:03:57,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41
[2024-11-08 17:03:57,406 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr139REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:03:57,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:03:57,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1785784298, now seen corresponding path program 1 times
[2024-11-08 17:03:57,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:03:57,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210415918]
[2024-11-08 17:03:57,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:03:57,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:03:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:03:57,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:03:57,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:03:57,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210415918]
[2024-11-08 17:03:57,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210415918] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:03:57,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:03:57,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-11-08 17:03:57,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043108976]
[2024-11-08 17:03:57,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:03:57,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 17:03:57,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:03:57,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 17:03:57,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2024-11-08 17:03:57,755 INFO L87 Difference]: Start difference. First operand 404 states and 504 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 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)
[2024-11-08 17:03:58,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:03:58,318 INFO L93 Difference]: Finished difference Result 469 states and 536 transitions.
[2024-11-08 17:03:58,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-11-08 17:03:58,319 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 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 58
[2024-11-08 17:03:58,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:03:58,320 INFO L225 Difference]: With dead ends: 469
[2024-11-08 17:03:58,320 INFO L226 Difference]: Without dead ends: 469
[2024-11-08 17:03:58,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306
[2024-11-08 17:03:58,321 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 292 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:03:58,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1797 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 17:03:58,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states.
[2024-11-08 17:03:58,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 404.
[2024-11-08 17:03:58,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 335 states have (on average 1.501492537313433) internal successors, (503), 403 states have internal predecessors, (503), 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)
[2024-11-08 17:03:58,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 503 transitions.
[2024-11-08 17:03:58,329 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 503 transitions. Word has length 58
[2024-11-08 17:03:58,329 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:03:58,329 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 503 transitions.
[2024-11-08 17:03:58,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 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)
[2024-11-08 17:03:58,329 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 503 transitions.
[2024-11-08 17:03:58,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2024-11-08 17:03:58,330 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:03:58,330 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:03:58,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42
[2024-11-08 17:03:58,331 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:03:58,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:03:58,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1358564409, now seen corresponding path program 1 times
[2024-11-08 17:03:58,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:03:58,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670921268]
[2024-11-08 17:03:58,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:03:58,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:03:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:03:58,551 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-11-08 17:03:58,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:03:58,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670921268]
[2024-11-08 17:03:58,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670921268] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:03:58,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:03:58,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:03:58,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927542669]
[2024-11-08 17:03:58,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:03:58,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:03:58,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:03:58,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:03:58,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:03:58,554 INFO L87 Difference]: Start difference. First operand 404 states and 503 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 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)
[2024-11-08 17:03:58,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:03:58,910 INFO L93 Difference]: Finished difference Result 422 states and 525 transitions.
[2024-11-08 17:03:58,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:03:58,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 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 59
[2024-11-08 17:03:58,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:03:58,911 INFO L225 Difference]: With dead ends: 422
[2024-11-08 17:03:58,911 INFO L226 Difference]: Without dead ends: 422
[2024-11-08 17:03:58,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:03:58,912 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 10 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:03:58,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 791 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:03:58,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states.
[2024-11-08 17:03:58,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 416.
[2024-11-08 17:03:58,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 347 states have (on average 1.5043227665706052) internal successors, (522), 415 states have internal predecessors, (522), 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)
[2024-11-08 17:03:58,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 522 transitions.
[2024-11-08 17:03:58,919 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 522 transitions. Word has length 59
[2024-11-08 17:03:58,920 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:03:58,920 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 522 transitions.
[2024-11-08 17:03:58,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 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)
[2024-11-08 17:03:58,920 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 522 transitions.
[2024-11-08 17:03:58,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2024-11-08 17:03:58,921 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:03:58,921 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:03:58,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43
[2024-11-08 17:03:58,922 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:03:58,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:03:58,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1358564410, now seen corresponding path program 1 times
[2024-11-08 17:03:58,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:03:58,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924114467]
[2024-11-08 17:03:58,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:03:58,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:03:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:04:01,164 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:04:01,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:04:01,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924114467]
[2024-11-08 17:04:01,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924114467] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:04:01,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356077406]
[2024-11-08 17:04:01,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:04:01,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:04:01,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:04:01,166 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:04:01,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-08 17:04:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:04:01,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 77 conjuncts are in the unsatisfiable core
[2024-11-08 17:04:01,562 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:04:01,573 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
[2024-11-08 17:04:01,582 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
[2024-11-08 17:04:01,739 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:04:01,740 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
[2024-11-08 17:04:01,765 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size
[2024-11-08 17:04:01,766 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
[2024-11-08 17:04:01,944 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-08 17:04:01,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-11-08 17:04:01,977 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size
[2024-11-08 17:04:01,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18
[2024-11-08 17:04:02,066 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 19 treesize of output 1
[2024-11-08 17:04:02,077 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 19 treesize of output 1
[2024-11-08 17:04:02,251 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:04:02,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15
[2024-11-08 17:04:02,334 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-08 17:04:02,345 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
[2024-11-08 17:04:02,463 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 97 treesize of output 65
[2024-11-08 17:04:02,468 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 97 treesize of output 69
[2024-11-08 17:04:02,611 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 97 treesize of output 65
[2024-11-08 17:04:02,616 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 97 treesize of output 69
[2024-11-08 17:04:02,798 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 35 treesize of output 7
[2024-11-08 17:04:02,804 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 78 treesize of output 22
[2024-11-08 17:04:02,892 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 28 treesize of output 8
[2024-11-08 17:04:02,897 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
[2024-11-08 17:04:03,142 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 38 treesize of output 18
[2024-11-08 17:04:03,151 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
[2024-11-08 17:04:03,243 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
[2024-11-08 17:04:03,249 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 38 treesize of output 18
[2024-11-08 17:04:03,276 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 26 treesize of output 14
[2024-11-08 17:04:03,285 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 7 treesize of output 3
[2024-11-08 17:04:03,343 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:04:03,343 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:04:05,201 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:04:05,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356077406] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:04:05,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:04:05,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 15] total 45
[2024-11-08 17:04:05,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161908738]
[2024-11-08 17:04:05,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:04:05,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states
[2024-11-08 17:04:05,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:04:05,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants.
[2024-11-08 17:04:05,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=1932, Unknown=0, NotChecked=0, Total=2070
[2024-11-08 17:04:05,205 INFO L87 Difference]: Start difference. First operand 416 states and 522 transitions. Second operand has 46 states, 45 states have (on average 3.688888888888889) internal successors, (166), 46 states have internal predecessors, (166), 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)
[2024-11-08 17:04:12,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:04:12,073 INFO L93 Difference]: Finished difference Result 423 states and 526 transitions.
[2024-11-08 17:04:12,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2024-11-08 17:04:12,074 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.688888888888889) internal successors, (166), 46 states have internal predecessors, (166), 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 59
[2024-11-08 17:04:12,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:04:12,076 INFO L225 Difference]: With dead ends: 423
[2024-11-08 17:04:12,076 INFO L226 Difference]: Without dead ends: 423
[2024-11-08 17:04:12,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=484, Invalid=3806, Unknown=0, NotChecked=0, Total=4290
[2024-11-08 17:04:12,077 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 473 mSDsluCounter, 3787 mSDsCounter, 0 mSdLazyCounter, 3746 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 4023 SdHoareTripleChecker+Invalid, 3761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2024-11-08 17:04:12,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 4023 Invalid, 3761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3746 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2024-11-08 17:04:12,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states.
[2024-11-08 17:04:12,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 416.
[2024-11-08 17:04:12,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 347 states have (on average 1.5014409221902016) internal successors, (521), 415 states have internal predecessors, (521), 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)
[2024-11-08 17:04:12,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 521 transitions.
[2024-11-08 17:04:12,086 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 521 transitions. Word has length 59
[2024-11-08 17:04:12,087 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:04:12,087 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 521 transitions.
[2024-11-08 17:04:12,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.688888888888889) internal successors, (166), 46 states have internal predecessors, (166), 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)
[2024-11-08 17:04:12,087 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 521 transitions.
[2024-11-08 17:04:12,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-11-08 17:04:12,088 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:04:12,088 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:04:12,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-08 17:04:12,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:04:12,290 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr109REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:04:12,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:04:12,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1693396807, now seen corresponding path program 1 times
[2024-11-08 17:04:12,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:04:12,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035302901]
[2024-11-08 17:04:12,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:04:12,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:04:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:04:12,525 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:04:12,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:04:12,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035302901]
[2024-11-08 17:04:12,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035302901] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:04:12,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:04:12,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:04:12,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697689763]
[2024-11-08 17:04:12,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:04:12,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:04:12,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:04:12,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:04:12,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:04:12,528 INFO L87 Difference]: Start difference. First operand 416 states and 521 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 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)
[2024-11-08 17:04:13,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:04:13,109 INFO L93 Difference]: Finished difference Result 466 states and 584 transitions.
[2024-11-08 17:04:13,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:04:13,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 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 60
[2024-11-08 17:04:13,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:04:13,111 INFO L225 Difference]: With dead ends: 466
[2024-11-08 17:04:13,111 INFO L226 Difference]: Without dead ends: 466
[2024-11-08 17:04:13,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:04:13,111 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 27 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 17:04:13,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 751 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 17:04:13,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states.
[2024-11-08 17:04:13,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 426.
[2024-11-08 17:04:13,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 357 states have (on average 1.4985994397759104) internal successors, (535), 425 states have internal predecessors, (535), 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)
[2024-11-08 17:04:13,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 535 transitions.
[2024-11-08 17:04:13,117 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 535 transitions. Word has length 60
[2024-11-08 17:04:13,118 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:04:13,118 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 535 transitions.
[2024-11-08 17:04:13,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 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)
[2024-11-08 17:04:13,118 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 535 transitions.
[2024-11-08 17:04:13,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-11-08 17:04:13,119 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:04:13,119 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:04:13,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45
[2024-11-08 17:04:13,120 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr110REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:04:13,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:04:13,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1693396808, now seen corresponding path program 1 times
[2024-11-08 17:04:13,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:04:13,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047465953]
[2024-11-08 17:04:13,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:04:13,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:04:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:04:14,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:04:14,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:04:14,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047465953]
[2024-11-08 17:04:14,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047465953] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:04:14,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:04:14,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14
[2024-11-08 17:04:14,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615762402]
[2024-11-08 17:04:14,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:04:14,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-08 17:04:14,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:04:14,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-08 17:04:14,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210
[2024-11-08 17:04:14,255 INFO L87 Difference]: Start difference. First operand 426 states and 535 transitions. Second operand has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 15 states have internal predecessors, (60), 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)
[2024-11-08 17:04:16,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:04:16,031 INFO L93 Difference]: Finished difference Result 486 states and 560 transitions.
[2024-11-08 17:04:16,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-08 17:04:16,032 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 15 states have internal predecessors, (60), 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 60
[2024-11-08 17:04:16,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:04:16,033 INFO L225 Difference]: With dead ends: 486
[2024-11-08 17:04:16,033 INFO L226 Difference]: Without dead ends: 486
[2024-11-08 17:04:16,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506
[2024-11-08 17:04:16,034 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 294 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-08 17:04:16,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 1372 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-08 17:04:16,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states.
[2024-11-08 17:04:16,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 426.
[2024-11-08 17:04:16,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 357 states have (on average 1.495798319327731) internal successors, (534), 425 states have internal predecessors, (534), 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)
[2024-11-08 17:04:16,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 534 transitions.
[2024-11-08 17:04:16,041 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 534 transitions. Word has length 60
[2024-11-08 17:04:16,041 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:04:16,041 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 534 transitions.
[2024-11-08 17:04:16,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 15 states have internal predecessors, (60), 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)
[2024-11-08 17:04:16,041 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 534 transitions.
[2024-11-08 17:04:16,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-11-08 17:04:16,042 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:04:16,042 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:04:16,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46
[2024-11-08 17:04:16,042 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:04:16,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:04:16,043 INFO L85 PathProgramCache]: Analyzing trace with hash -261205887, now seen corresponding path program 1 times
[2024-11-08 17:04:16,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:04:16,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070186973]
[2024-11-08 17:04:16,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:04:16,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:04:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:04:19,627 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:04:19,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:04:19,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070186973]
[2024-11-08 17:04:19,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070186973] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:04:19,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424007165]
[2024-11-08 17:04:19,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:04:19,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:04:19,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:04:19,629 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:04:19,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-08 17:04:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:04:20,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 126 conjuncts are in the unsatisfiable core
[2024-11-08 17:04:20,049 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:04:20,092 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
[2024-11-08 17:04:20,125 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
[2024-11-08 17:04:20,132 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
[2024-11-08 17:04:20,234 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-08 17:04:20,235 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
[2024-11-08 17:04:20,341 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
[2024-11-08 17:04:20,350 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
[2024-11-08 17:04:20,385 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
[2024-11-08 17:04:20,393 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
[2024-11-08 17:04:20,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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
[2024-11-08 17:04:20,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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
[2024-11-08 17:04:20,662 INFO L349 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size
[2024-11-08 17:04:20,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 38
[2024-11-08 17:04:20,700 INFO L349 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size
[2024-11-08 17:04:20,701 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 2 case distinctions, treesize of input 34 treesize of output 33
[2024-11-08 17:04:21,138 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
[2024-11-08 17:04:21,158 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
[2024-11-08 17:04:21,516 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 126 treesize of output 85
[2024-11-08 17:04:21,550 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 21 treesize of output 20
[2024-11-08 17:04:22,501 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:04:22,502 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 14
[2024-11-08 17:04:22,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 82
[2024-11-08 17:04:23,438 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 154 treesize of output 98
[2024-11-08 17:04:23,445 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 23 treesize of output 15
[2024-11-08 17:04:24,844 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 229 treesize of output 205
[2024-11-08 17:04:24,855 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 208
[2024-11-08 17:04:26,972 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 241 treesize of output 217
[2024-11-08 17:04:26,980 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 248 treesize of output 220
[2024-11-08 17:04:27,493 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 236 treesize of output 216
[2024-11-08 17:04:27,971 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:04:28,184 INFO L349 Elim1Store]: treesize reduction 28, result has 79.6 percent of original size
[2024-11-08 17:04:28,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 223 treesize of output 252
[2024-11-08 17:04:28,261 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:04:29,014 INFO L349 Elim1Store]: treesize reduction 92, result has 75.6 percent of original size
[2024-11-08 17:04:29,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 2 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 63 case distinctions, treesize of input 151 treesize of output 373
[2024-11-08 17:05:27,659 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 40 treesize of output 28
[2024-11-08 17:05:27,960 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
[2024-11-08 17:05:28,056 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:05:28,056 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:05:28,092 INFO L349 Elim1Store]: treesize reduction 5, result has 64.3 percent of original size
[2024-11-08 17:05:28,092 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 18 treesize of output 17
[2024-11-08 17:05:34,069 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:05:34,069 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 69 treesize of output 49
[2024-11-08 17:05:34,083 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:05:34,083 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 44 treesize of output 35
[2024-11-08 17:05:34,114 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:05:34,115 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 361 treesize of output 349
[2024-11-08 17:05:34,127 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:05:34,134 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 167 treesize of output 147
[2024-11-08 17:05:34,153 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 56 treesize of output 50
[2024-11-08 17:05:34,176 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 12 treesize of output 10
[2024-11-08 17:05:34,389 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:05:34,389 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 54 treesize of output 50
[2024-11-08 17:05:34,580 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:05:34,581 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 46 treesize of output 37
[2024-11-08 17:05:34,598 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:05:34,599 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 67 treesize of output 47
[2024-11-08 17:05:34,609 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:05:34,636 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:05:34,637 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 86 treesize of output 86
[2024-11-08 17:05:34,647 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:05:34,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:05:34,671 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 65 treesize of output 61
[2024-11-08 17:05:34,692 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 12 treesize of output 10
[2024-11-08 17:05:34,703 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:05:34,711 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 37 treesize of output 33
[2024-11-08 17:05:34,785 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:05:34,786 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 16 treesize of output 16
[2024-11-08 17:05:35,256 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 10 treesize of output 8
[2024-11-08 17:05:35,293 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:05:35,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424007165] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:05:35,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:05:35,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 30, 29] total 74
[2024-11-08 17:05:35,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286506230]
[2024-11-08 17:05:35,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:05:35,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states
[2024-11-08 17:05:35,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:05:35,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants.
[2024-11-08 17:05:35,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=5237, Unknown=3, NotChecked=0, Total=5550
[2024-11-08 17:05:35,299 INFO L87 Difference]: Start difference. First operand 426 states and 534 transitions. Second operand has 75 states, 74 states have (on average 2.3378378378378377) internal successors, (173), 75 states have internal predecessors, (173), 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)
[2024-11-08 17:05:54,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:05:54,133 INFO L93 Difference]: Finished difference Result 544 states and 669 transitions.
[2024-11-08 17:05:54,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states.
[2024-11-08 17:05:54,134 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 74 states have (on average 2.3378378378378377) internal successors, (173), 75 states have internal predecessors, (173), 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 63
[2024-11-08 17:05:54,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:05:54,138 INFO L225 Difference]: With dead ends: 544
[2024-11-08 17:05:54,138 INFO L226 Difference]: Without dead ends: 544
[2024-11-08 17:05:54,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 82 SyntacticMatches, 2 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2105 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=770, Invalid=10147, Unknown=3, NotChecked=0, Total=10920
[2024-11-08 17:05:54,140 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 427 mSDsluCounter, 8714 mSDsCounter, 0 mSdLazyCounter, 5144 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 8963 SdHoareTripleChecker+Invalid, 5176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 5144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time
[2024-11-08 17:05:54,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 8963 Invalid, 5176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 5144 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time]
[2024-11-08 17:05:54,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states.
[2024-11-08 17:05:54,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 482.
[2024-11-08 17:05:54,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 413 states have (on average 1.4552058111380146) internal successors, (601), 481 states have internal predecessors, (601), 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)
[2024-11-08 17:05:54,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 601 transitions.
[2024-11-08 17:05:54,152 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 601 transitions. Word has length 63
[2024-11-08 17:05:54,152 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:05:54,152 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 601 transitions.
[2024-11-08 17:05:54,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 74 states have (on average 2.3378378378378377) internal successors, (173), 75 states have internal predecessors, (173), 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)
[2024-11-08 17:05:54,153 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 601 transitions.
[2024-11-08 17:05:54,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-11-08 17:05:54,154 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:05:54,154 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:05:54,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2024-11-08 17:05:54,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47
[2024-11-08 17:05:54,355 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr51REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:05:54,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:05:54,355 INFO L85 PathProgramCache]: Analyzing trace with hash -261205886, now seen corresponding path program 1 times
[2024-11-08 17:05:54,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:05:54,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257368070]
[2024-11-08 17:05:54,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:05:54,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:05:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:58,166 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:05:58,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:05:58,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257368070]
[2024-11-08 17:05:58,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257368070] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:05:58,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822056239]
[2024-11-08 17:05:58,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:05:58,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:05:58,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:05:58,169 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:05:58,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-08 17:05:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:58,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 128 conjuncts are in the unsatisfiable core
[2024-11-08 17:05:58,605 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:05:58,654 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
[2024-11-08 17:05:58,685 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
[2024-11-08 17:05:58,691 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:05:58,810 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2024-11-08 17:05:58,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14
[2024-11-08 17:05:58,936 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2024-11-08 17:05:58,937 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 19 treesize of output 18
[2024-11-08 17:05:58,962 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2024-11-08 17:05:58,963 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 19 treesize of output 18
[2024-11-08 17:05:59,104 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2024-11-08 17:05:59,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 21
[2024-11-08 17:05:59,122 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2024-11-08 17:05:59,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 21
[2024-11-08 17:05:59,171 INFO L349 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size
[2024-11-08 17:05:59,171 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 16 treesize of output 18
[2024-11-08 17:05:59,333 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size
[2024-11-08 17:05:59,334 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 1 case distinctions, treesize of input 30 treesize of output 32
[2024-11-08 17:05:59,362 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size
[2024-11-08 17:05:59,363 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 1 case distinctions, treesize of input 34 treesize of output 25
[2024-11-08 17:05:59,549 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size
[2024-11-08 17:05:59,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 39
[2024-11-08 17:05:59,580 INFO L349 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size
[2024-11-08 17:05:59,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 46
[2024-11-08 17:06:00,113 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
[2024-11-08 17:06:00,132 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
[2024-11-08 17:06:00,534 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 136 treesize of output 95
[2024-11-08 17:06:00,572 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 21 treesize of output 20
[2024-11-08 17:06:01,410 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:06:01,411 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 14
[2024-11-08 17:06:01,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 92
[2024-11-08 17:06:02,129 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 164 treesize of output 108
[2024-11-08 17:06:02,141 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 23 treesize of output 15
[2024-11-08 17:06:03,227 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 31 treesize of output 15
[2024-11-08 17:06:03,235 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 38 treesize of output 18
[2024-11-08 17:06:03,980 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 38 treesize of output 18
[2024-11-08 17:06:03,991 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 31 treesize of output 15
[2024-11-08 17:06:04,098 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
[2024-11-08 17:06:04,351 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:06:04,367 INFO L349 Elim1Store]: treesize reduction 41, result has 6.8 percent of original size
[2024-11-08 17:06:04,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 95 treesize of output 54
[2024-11-08 17:06:04,391 INFO L349 Elim1Store]: treesize reduction 34, result has 8.1 percent of original size
[2024-11-08 17:06:04,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 26
[2024-11-08 17:06:04,502 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 19 treesize of output 11
[2024-11-08 17:06:04,518 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:06:04,518 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:06:09,521 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:06:09,525 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 130 treesize of output 118
[2024-11-08 17:06:09,671 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:06:09,678 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 130 treesize of output 118
[2024-11-08 17:06:10,200 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:06:10,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822056239] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:06:10,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:06:10,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 27, 21] total 66
[2024-11-08 17:06:10,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795750086]
[2024-11-08 17:06:10,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:06:10,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states
[2024-11-08 17:06:10,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:06:10,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants.
[2024-11-08 17:06:10,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=4087, Unknown=0, NotChecked=0, Total=4290
[2024-11-08 17:06:10,203 INFO L87 Difference]: Start difference. First operand 482 states and 601 transitions. Second operand has 66 states, 66 states have (on average 2.6515151515151514) internal successors, (175), 66 states have internal predecessors, (175), 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)
[2024-11-08 17:06:20,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:06:20,685 INFO L93 Difference]: Finished difference Result 520 states and 640 transitions.
[2024-11-08 17:06:20,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states.
[2024-11-08 17:06:20,686 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.6515151515151514) internal successors, (175), 66 states have internal predecessors, (175), 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 63
[2024-11-08 17:06:20,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:06:20,688 INFO L225 Difference]: With dead ends: 520
[2024-11-08 17:06:20,688 INFO L226 Difference]: Without dead ends: 520
[2024-11-08 17:06:20,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 91 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1879 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=542, Invalid=8014, Unknown=0, NotChecked=0, Total=8556
[2024-11-08 17:06:20,689 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 283 mSDsluCounter, 8250 mSDsCounter, 0 mSdLazyCounter, 5181 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 8497 SdHoareTripleChecker+Invalid, 5200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 5181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:06:20,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 8497 Invalid, 5200 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 5181 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time]
[2024-11-08 17:06:20,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states.
[2024-11-08 17:06:20,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 480.
[2024-11-08 17:06:20,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 411 states have (on average 1.4525547445255473) internal successors, (597), 479 states have internal predecessors, (597), 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)
[2024-11-08 17:06:20,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 597 transitions.
[2024-11-08 17:06:20,698 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 597 transitions. Word has length 63
[2024-11-08 17:06:20,698 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:06:20,698 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 597 transitions.
[2024-11-08 17:06:20,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.6515151515151514) internal successors, (175), 66 states have internal predecessors, (175), 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)
[2024-11-08 17:06:20,698 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 597 transitions.
[2024-11-08 17:06:20,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-08 17:06:20,699 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:06:20,699 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:06:20,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2024-11-08 17:06:20,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48
[2024-11-08 17:06:20,900 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr139REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:06:20,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:06:20,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1213375323, now seen corresponding path program 1 times
[2024-11-08 17:06:20,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:06:20,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793813512]
[2024-11-08 17:06:20,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:06:20,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:06:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:06:21,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:06:21,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:06:21,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793813512]
[2024-11-08 17:06:21,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793813512] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:06:21,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809626532]
[2024-11-08 17:06:21,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:06:21,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:06:21,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:06:21,638 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:06:21,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-08 17:06:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:06:22,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 25 conjuncts are in the unsatisfiable core
[2024-11-08 17:06:22,011 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:06:22,178 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
[2024-11-08 17:06:22,242 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 7 treesize of output 3
[2024-11-08 17:06:22,380 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
[2024-11-08 17:06:22,502 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
[2024-11-08 17:06:22,530 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 7 treesize of output 3
[2024-11-08 17:06:22,650 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:06:22,651 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
[2024-11-08 17:06:22,727 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:06:22,727 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:06:22,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809626532] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:06:22,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:06:22,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [19] total 29
[2024-11-08 17:06:22,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946369952]
[2024-11-08 17:06:22,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:06:22,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 17:06:22,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:06:22,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 17:06:22,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=750, Unknown=0, NotChecked=0, Total=812
[2024-11-08 17:06:22,729 INFO L87 Difference]: Start difference. First operand 480 states and 597 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 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)
[2024-11-08 17:06:24,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:06:24,074 INFO L93 Difference]: Finished difference Result 562 states and 644 transitions.
[2024-11-08 17:06:24,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-11-08 17:06:24,075 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 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 64
[2024-11-08 17:06:24,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:06:24,076 INFO L225 Difference]: With dead ends: 562
[2024-11-08 17:06:24,076 INFO L226 Difference]: Without dead ends: 562
[2024-11-08 17:06:24,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=105, Invalid=1227, Unknown=0, NotChecked=0, Total=1332
[2024-11-08 17:06:24,077 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 406 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:06:24,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 1378 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-08 17:06:24,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states.
[2024-11-08 17:06:24,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 482.
[2024-11-08 17:06:24,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 413 states have (on average 1.4479418886198547) internal successors, (598), 481 states have internal predecessors, (598), 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)
[2024-11-08 17:06:24,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 598 transitions.
[2024-11-08 17:06:24,086 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 598 transitions. Word has length 64
[2024-11-08 17:06:24,086 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:06:24,086 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 598 transitions.
[2024-11-08 17:06:24,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 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)
[2024-11-08 17:06:24,087 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 598 transitions.
[2024-11-08 17:06:24,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-08 17:06:24,088 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:06:24,088 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:06:24,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2024-11-08 17:06:24,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49
[2024-11-08 17:06:24,293 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr115REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:06:24,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:06:24,293 INFO L85 PathProgramCache]: Analyzing trace with hash -263810161, now seen corresponding path program 1 times
[2024-11-08 17:06:24,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:06:24,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37369165]
[2024-11-08 17:06:24,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:06:24,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:06:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:06:25,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:06:25,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:06:25,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37369165]
[2024-11-08 17:06:25,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37369165] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:06:25,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105235496]
[2024-11-08 17:06:25,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:06:25,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:06:25,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:06:25,246 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:06:25,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-08 17:06:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:06:25,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 51 conjuncts are in the unsatisfiable core
[2024-11-08 17:06:25,663 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:06:25,711 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 13 treesize of output 9
[2024-11-08 17:06:25,717 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 13 treesize of output 9
[2024-11-08 17:06:26,035 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
[2024-11-08 17:06:26,044 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
[2024-11-08 17:06:26,101 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 54 treesize of output 34
[2024-11-08 17:06:26,104 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 54 treesize of output 34
[2024-11-08 17:06:26,160 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 54 treesize of output 34
[2024-11-08 17:06:26,164 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 54 treesize of output 34
[2024-11-08 17:06:26,183 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 42 treesize of output 30
[2024-11-08 17:06:26,240 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 13 treesize of output 3
[2024-11-08 17:06:26,244 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 13 treesize of output 3
[2024-11-08 17:06:26,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:06:26,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:06:26,292 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:06:26,663 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:06:26,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105235496] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:06:26,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:06:26,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 10] total 21
[2024-11-08 17:06:26,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356370813]
[2024-11-08 17:06:26,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:06:26,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2024-11-08 17:06:26,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:06:26,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2024-11-08 17:06:26,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420
[2024-11-08 17:06:26,666 INFO L87 Difference]: Start difference. First operand 482 states and 598 transitions. Second operand has 21 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 21 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:06:27,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:06:27,888 INFO L93 Difference]: Finished difference Result 569 states and 699 transitions.
[2024-11-08 17:06:27,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-11-08 17:06:27,888 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 21 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64
[2024-11-08 17:06:27,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:06:27,890 INFO L225 Difference]: With dead ends: 569
[2024-11-08 17:06:27,891 INFO L226 Difference]: Without dead ends: 569
[2024-11-08 17:06:27,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702
[2024-11-08 17:06:27,891 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 145 mSDsluCounter, 2698 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 2921 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-08 17:06:27,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 2921 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-08 17:06:27,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states.
[2024-11-08 17:06:27,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 499.
[2024-11-08 17:06:27,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 430 states have (on average 1.4325581395348836) internal successors, (616), 498 states have internal predecessors, (616), 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)
[2024-11-08 17:06:27,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 616 transitions.
[2024-11-08 17:06:27,900 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 616 transitions. Word has length 64
[2024-11-08 17:06:27,900 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:06:27,900 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 616 transitions.
[2024-11-08 17:06:27,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 21 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:06:27,900 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 616 transitions.
[2024-11-08 17:06:27,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-08 17:06:27,901 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:06:27,901 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:06:27,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-11-08 17:06:28,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:06:28,102 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:06:28,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:06:28,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1957930445, now seen corresponding path program 2 times
[2024-11-08 17:06:28,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:06:28,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20106299]
[2024-11-08 17:06:28,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:06:28,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:06:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:06:29,395 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:06:29,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:06:29,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20106299]
[2024-11-08 17:06:29,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20106299] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:06:29,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104932160]
[2024-11-08 17:06:29,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 17:06:29,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:06:29,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:06:29,398 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:06:29,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-08 17:06:29,811 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-08 17:06:29,811 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 17:06:29,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 48 conjuncts are in the unsatisfiable core
[2024-11-08 17:06:29,818 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:06:29,852 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
[2024-11-08 17:06:29,863 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
[2024-11-08 17:06:29,918 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
[2024-11-08 17:06:29,926 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
[2024-11-08 17:06:29,973 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
[2024-11-08 17:06:29,979 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
[2024-11-08 17:06:29,994 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
[2024-11-08 17:06:29,997 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
[2024-11-08 17:06:30,217 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 9 treesize of output 3
[2024-11-08 17:06:30,298 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2024-11-08 17:06:30,298 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:06:30,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104932160] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:06:30,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:06:30,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [17] total 25
[2024-11-08 17:06:30,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435050596]
[2024-11-08 17:06:30,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:06:30,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 17:06:30,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:06:30,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 17:06:30,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600
[2024-11-08 17:06:30,300 INFO L87 Difference]: Start difference. First operand 499 states and 616 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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)
[2024-11-08 17:06:31,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:06:31,070 INFO L93 Difference]: Finished difference Result 578 states and 706 transitions.
[2024-11-08 17:06:31,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-08 17:06:31,071 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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 64
[2024-11-08 17:06:31,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:06:31,074 INFO L225 Difference]: With dead ends: 578
[2024-11-08 17:06:31,074 INFO L226 Difference]: Without dead ends: 578
[2024-11-08 17:06:31,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=88, Invalid=782, Unknown=0, NotChecked=0, Total=870
[2024-11-08 17:06:31,075 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 82 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1841 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 17:06:31,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1841 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 17:06:31,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states.
[2024-11-08 17:06:31,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 506.
[2024-11-08 17:06:31,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 437 states have (on average 1.425629290617849) internal successors, (623), 505 states have internal predecessors, (623), 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)
[2024-11-08 17:06:31,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 623 transitions.
[2024-11-08 17:06:31,090 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 623 transitions. Word has length 64
[2024-11-08 17:06:31,090 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:06:31,090 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 623 transitions.
[2024-11-08 17:06:31,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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)
[2024-11-08 17:06:31,091 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 623 transitions.
[2024-11-08 17:06:31,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2024-11-08 17:06:31,092 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:06:31,092 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:06:31,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-11-08 17:06:31,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:06:31,293 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:06:31,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:06:31,294 INFO L85 PathProgramCache]: Analyzing trace with hash 546102368, now seen corresponding path program 1 times
[2024-11-08 17:06:31,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:06:31,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020310074]
[2024-11-08 17:06:31,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:06:31,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:06:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:06:35,173 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:06:35,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:06:35,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020310074]
[2024-11-08 17:06:35,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020310074] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:06:35,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104567804]
[2024-11-08 17:06:35,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:06:35,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:06:35,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:06:35,175 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:06:35,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-08 17:06:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:06:35,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 140 conjuncts are in the unsatisfiable core
[2024-11-08 17:06:35,649 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:06:35,656 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
[2024-11-08 17:06:35,734 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
[2024-11-08 17:06:35,743 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
[2024-11-08 17:06:35,771 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
[2024-11-08 17:06:35,780 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
[2024-11-08 17:06:35,828 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size
[2024-11-08 17:06:35,828 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
[2024-11-08 17:06:35,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15
[2024-11-08 17:06:35,985 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 22
[2024-11-08 17:06:36,013 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 34 treesize of output 25
[2024-11-08 17:06:36,033 INFO L349 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size
[2024-11-08 17:06:36,034 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 2 case distinctions, treesize of input 55 treesize of output 37
[2024-11-08 17:06:36,255 INFO L349 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size
[2024-11-08 17:06:36,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36
[2024-11-08 17:06:36,438 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size
[2024-11-08 17:06:36,439 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 2 case distinctions, treesize of input 56 treesize of output 49
[2024-11-08 17:06:36,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25
[2024-11-08 17:06:36,537 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size
[2024-11-08 17:06:36,537 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 2 case distinctions, treesize of input 56 treesize of output 49
[2024-11-08 17:06:36,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25
[2024-11-08 17:06:36,601 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size
[2024-11-08 17:06:36,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22
[2024-11-08 17:06:36,761 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size
[2024-11-08 17:06:36,761 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 2 case distinctions, treesize of input 47 treesize of output 42
[2024-11-08 17:06:36,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25
[2024-11-08 17:06:36,819 INFO L349 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size
[2024-11-08 17:06:36,819 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 44
[2024-11-08 17:06:36,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33
[2024-11-08 17:06:37,352 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
[2024-11-08 17:06:37,373 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
[2024-11-08 17:06:37,574 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
[2024-11-08 17:06:37,581 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 144 treesize of output 92
[2024-11-08 17:06:37,803 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
[2024-11-08 17:06:37,809 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 144 treesize of output 92
[2024-11-08 17:06:38,238 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 23 treesize of output 3
[2024-11-08 17:06:38,242 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 159 treesize of output 107
[2024-11-08 17:06:39,013 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 71 treesize of output 58
[2024-11-08 17:06:39,025 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 65 treesize of output 52
[2024-11-08 17:06:40,310 INFO L349 Elim1Store]: treesize reduction 78, result has 8.2 percent of original size
[2024-11-08 17:06:40,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 75 treesize of output 35
[2024-11-08 17:06:40,326 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:06:40,328 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:06:40,329 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:06:40,329 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:06:40,350 INFO L349 Elim1Store]: treesize reduction 30, result has 18.9 percent of original size
[2024-11-08 17:06:40,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 93 treesize of output 47
[2024-11-08 17:06:40,520 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:06:40,521 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 46 treesize of output 29
[2024-11-08 17:06:40,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 14
[2024-11-08 17:06:40,668 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:06:40,668 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:06:41,778 INFO L349 Elim1Store]: treesize reduction 5, result has 77.3 percent of original size
[2024-11-08 17:06:41,778 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 26 treesize of output 25
[2024-11-08 17:06:44,634 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:06:44,634 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 76
[2024-11-08 17:06:44,668 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:06:44,668 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 71
[2024-11-08 17:06:44,702 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~item~0#1.offset| 4))) (and (forall ((v_arrayElimArr_10 (Array Int Int)) (v_ArrVal_3907 (Array Int Int)) (|v_ULTIMATE.start_main_#t~mem12#1.offset_26| Int)) (let ((.cse2 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~item~0#1.base| (store v_ArrVal_3907 .cse3 |c_ULTIMATE.start_main_~data~0#1.base|)))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~data~0#1.base|) |v_ULTIMATE.start_main_#t~mem12#1.offset_26|)) (.cse1 (+ 4 (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_arrayElimArr_10) |c_ULTIMATE.start_main_~data~0#1.base|) |v_ULTIMATE.start_main_#t~mem12#1.offset_26|)))) (or (< |c_ULTIMATE.start_main_~data~0#1.offset| |v_ULTIMATE.start_main_#t~mem12#1.offset_26|) (= (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_3907) .cse0) .cse1) 0) (= (select (select .cse2 .cse0) .cse1) |c_ULTIMATE.start_main_~data~0#1.base|) (< |v_ULTIMATE.start_main_#t~mem12#1.offset_26| 0) (not (= |c_ULTIMATE.start_main_~data~0#1.offset| (select v_arrayElimArr_10 .cse3))))))) (forall ((v_arrayElimArr_11 (Array Int Int)) (v_ArrVal_3906 (Array Int Int)) (|v_ULTIMATE.start_main_#t~mem12#1.offset_26| Int)) (let ((.cse4 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~item~0#1.base| v_arrayElimArr_11))) (let ((.cse5 (select (select .cse4 |c_ULTIMATE.start_main_~data~0#1.base|) |v_ULTIMATE.start_main_#t~mem12#1.offset_26|)) (.cse6 (+ (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_~item~0#1.base| (store v_ArrVal_3906 .cse3 |c_ULTIMATE.start_main_~data~0#1.offset|)) |c_ULTIMATE.start_main_~data~0#1.base|) |v_ULTIMATE.start_main_#t~mem12#1.offset_26|) 4))) (or (< |c_ULTIMATE.start_main_~data~0#1.offset| |v_ULTIMATE.start_main_#t~mem12#1.offset_26|) (not (= (select v_arrayElimArr_11 .cse3) |c_ULTIMATE.start_main_~data~0#1.base|)) (= (select (select .cse4 .cse5) .cse6) |c_ULTIMATE.start_main_~data~0#1.base|) (< |v_ULTIMATE.start_main_#t~mem12#1.offset_26| 0) (= (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_3906) .cse5) .cse6) 0))))))) is different from false
[2024-11-08 17:08:03,137 INFO L349 Elim1Store]: treesize reduction 120, result has 34.4 percent of original size
[2024-11-08 17:08:03,138 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 333 treesize of output 272
[2024-11-08 17:08:03,164 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:08:03,374 INFO L349 Elim1Store]: treesize reduction 120, result has 34.4 percent of original size
[2024-11-08 17:08:03,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 210 treesize of output 149
[2024-11-08 17:08:03,389 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:08:03,390 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:08:03,402 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:08:03,407 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:08:03,510 INFO L349 Elim1Store]: treesize reduction 98, result has 13.3 percent of original size
[2024-11-08 17:08:03,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 450 treesize of output 308
[2024-11-08 17:08:03,539 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:08:03,540 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:08:03,554 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:08:03,622 INFO L349 Elim1Store]: treesize reduction 45, result has 25.0 percent of original size
[2024-11-08 17:08:03,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 309 treesize of output 235
[2024-11-08 17:08:03,669 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 29 treesize of output 25
[2024-11-08 17:08:03,697 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:08:03,698 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 175 treesize of output 149
[2024-11-08 17:08:03,725 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 25 treesize of output 21
[2024-11-08 17:08:03,743 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 28 treesize of output 20
[2024-11-08 17:08:04,167 INFO L349 Elim1Store]: treesize reduction 104, result has 34.6 percent of original size
[2024-11-08 17:08:04,168 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 302 treesize of output 208
[2024-11-08 17:08:04,311 INFO L349 Elim1Store]: treesize reduction 104, result has 34.6 percent of original size
[2024-11-08 17:08:04,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 154 treesize of output 134
[2024-11-08 17:08:04,324 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:08:04,325 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:08:04,334 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:08:04,334 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:08:04,393 INFO L349 Elim1Store]: treesize reduction 79, result has 14.1 percent of original size
[2024-11-08 17:08:04,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 453 treesize of output 315
[2024-11-08 17:08:04,418 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:08:04,419 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:08:04,430 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:08:04,472 INFO L349 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size
[2024-11-08 17:08:04,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 183 treesize of output 153
[2024-11-08 17:08:04,508 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 100 treesize of output 84
[2024-11-08 17:08:04,529 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 54 treesize of output 46
[2024-11-08 17:08:09,543 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked.
[2024-11-08 17:08:09,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104567804] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:08:09,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:08:09,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 29] total 70
[2024-11-08 17:08:09,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60318330]
[2024-11-08 17:08:09,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:08:09,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 70 states
[2024-11-08 17:08:09,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:08:09,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants.
[2024-11-08 17:08:09,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=4430, Unknown=29, NotChecked=134, Total=4830
[2024-11-08 17:08:09,546 INFO L87 Difference]: Start difference. First operand 506 states and 623 transitions. Second operand has 70 states, 70 states have (on average 2.557142857142857) internal successors, (179), 70 states have internal predecessors, (179), 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)
[2024-11-08 17:08:27,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:08:27,061 INFO L93 Difference]: Finished difference Result 500 states and 606 transitions.
[2024-11-08 17:08:27,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states.
[2024-11-08 17:08:27,062 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 2.557142857142857) internal successors, (179), 70 states have internal predecessors, (179), 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 65
[2024-11-08 17:08:27,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:08:27,063 INFO L225 Difference]: With dead ends: 500
[2024-11-08 17:08:27,063 INFO L226 Difference]: Without dead ends: 500
[2024-11-08 17:08:27,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1543 ImplicationChecksByTransitivity, 93.4s TimeCoverageRelationStatistics Valid=686, Invalid=8219, Unknown=29, NotChecked=186, Total=9120
[2024-11-08 17:08:27,064 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 586 mSDsluCounter, 7163 mSDsCounter, 0 mSdLazyCounter, 4599 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 7404 SdHoareTripleChecker+Invalid, 4791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 4599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 170 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:08:27,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 7404 Invalid, 4791 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 4599 Invalid, 0 Unknown, 170 Unchecked, 11.2s Time]
[2024-11-08 17:08:27,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states.
[2024-11-08 17:08:27,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 490.
[2024-11-08 17:08:27,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 421 states have (on average 1.4133016627078385) internal successors, (595), 489 states have internal predecessors, (595), 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)
[2024-11-08 17:08:27,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 595 transitions.
[2024-11-08 17:08:27,073 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 595 transitions. Word has length 65
[2024-11-08 17:08:27,074 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:08:27,074 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 595 transitions.
[2024-11-08 17:08:27,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 2.557142857142857) internal successors, (179), 70 states have internal predecessors, (179), 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)
[2024-11-08 17:08:27,074 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 595 transitions.
[2024-11-08 17:08:27,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2024-11-08 17:08:27,075 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:08:27,076 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:08:27,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2024-11-08 17:08:27,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:08:27,277 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr123REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:08:27,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:08:27,277 INFO L85 PathProgramCache]: Analyzing trace with hash 611935625, now seen corresponding path program 1 times
[2024-11-08 17:08:27,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:08:27,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937979089]
[2024-11-08 17:08:27,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:08:27,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:08:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:08:28,679 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:08:28,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:08:28,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937979089]
[2024-11-08 17:08:28,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937979089] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:08:28,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:08:28,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20
[2024-11-08 17:08:28,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507663884]
[2024-11-08 17:08:28,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:08:28,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-11-08 17:08:28,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:08:28,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-11-08 17:08:28,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380
[2024-11-08 17:08:28,682 INFO L87 Difference]: Start difference. First operand 490 states and 595 transitions. Second operand has 20 states, 20 states have (on average 3.3) internal successors, (66), 20 states have internal predecessors, (66), 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)
[2024-11-08 17:08:30,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:08:30,508 INFO L93 Difference]: Finished difference Result 543 states and 637 transitions.
[2024-11-08 17:08:30,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states.
[2024-11-08 17:08:30,509 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.3) internal successors, (66), 20 states have internal predecessors, (66), 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 66
[2024-11-08 17:08:30,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:08:30,510 INFO L225 Difference]: With dead ends: 543
[2024-11-08 17:08:30,510 INFO L226 Difference]: Without dead ends: 543
[2024-11-08 17:08:30,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=122, Invalid=870, Unknown=0, NotChecked=0, Total=992
[2024-11-08 17:08:30,511 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 186 mSDsluCounter, 3224 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:08:30,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 3428 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-08 17:08:30,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states.
[2024-11-08 17:08:30,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 490.
[2024-11-08 17:08:30,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 421 states have (on average 1.4085510688836105) internal successors, (593), 489 states have internal predecessors, (593), 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)
[2024-11-08 17:08:30,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 593 transitions.
[2024-11-08 17:08:30,521 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 593 transitions. Word has length 66
[2024-11-08 17:08:30,521 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:08:30,521 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 593 transitions.
[2024-11-08 17:08:30,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.3) internal successors, (66), 20 states have internal predecessors, (66), 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)
[2024-11-08 17:08:30,522 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 593 transitions.
[2024-11-08 17:08:30,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2024-11-08 17:08:30,523 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:08:30,523 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:08:30,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53
[2024-11-08 17:08:30,523 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:08:30,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:08:30,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1630940205, now seen corresponding path program 1 times
[2024-11-08 17:08:30,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:08:30,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455160806]
[2024-11-08 17:08:30,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:08:30,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:08:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:08:30,808 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-11-08 17:08:30,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:08:30,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455160806]
[2024-11-08 17:08:30,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455160806] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:08:30,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:08:30,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:08:30,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745385671]
[2024-11-08 17:08:30,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:08:30,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:08:30,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:08:30,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:08:30,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:08:30,810 INFO L87 Difference]: Start difference. First operand 490 states and 593 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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)
[2024-11-08 17:08:30,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:08:30,908 INFO L93 Difference]: Finished difference Result 491 states and 592 transitions.
[2024-11-08 17:08:30,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:08:30,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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 67
[2024-11-08 17:08:30,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:08:30,910 INFO L225 Difference]: With dead ends: 491
[2024-11-08 17:08:30,910 INFO L226 Difference]: Without dead ends: 491
[2024-11-08 17:08:30,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:08:30,910 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 8 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:08:30,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 990 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:08:30,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states.
[2024-11-08 17:08:30,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 490.
[2024-11-08 17:08:30,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 421 states have (on average 1.4038004750593824) internal successors, (591), 489 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:08:30,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 591 transitions.
[2024-11-08 17:08:30,918 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 591 transitions. Word has length 67
[2024-11-08 17:08:30,918 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:08:30,918 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 591 transitions.
[2024-11-08 17:08:30,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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)
[2024-11-08 17:08:30,919 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 591 transitions.
[2024-11-08 17:08:30,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71
[2024-11-08 17:08:30,920 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:08:30,920 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:08:30,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54
[2024-11-08 17:08:30,921 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:08:30,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:08:30,921 INFO L85 PathProgramCache]: Analyzing trace with hash -2104321142, now seen corresponding path program 1 times
[2024-11-08 17:08:30,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:08:30,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632426197]
[2024-11-08 17:08:30,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:08:30,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:08:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:08:31,231 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-11-08 17:08:31,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:08:31,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632426197]
[2024-11-08 17:08:31,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632426197] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:08:31,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:08:31,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:08:31,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130681706]
[2024-11-08 17:08:31,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:08:31,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:08:31,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:08:31,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:08:31,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:08:31,233 INFO L87 Difference]: Start difference. First operand 490 states and 591 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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)
[2024-11-08 17:08:31,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:08:31,329 INFO L93 Difference]: Finished difference Result 498 states and 601 transitions.
[2024-11-08 17:08:31,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:08:31,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 70
[2024-11-08 17:08:31,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:08:31,331 INFO L225 Difference]: With dead ends: 498
[2024-11-08 17:08:31,332 INFO L226 Difference]: Without dead ends: 498
[2024-11-08 17:08:31,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:08:31,332 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 4 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:08:31,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1002 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:08:31,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states.
[2024-11-08 17:08:31,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 496.
[2024-11-08 17:08:31,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 427 states have (on average 1.4028103044496487) internal successors, (599), 495 states have internal predecessors, (599), 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)
[2024-11-08 17:08:31,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 599 transitions.
[2024-11-08 17:08:31,341 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 599 transitions. Word has length 70
[2024-11-08 17:08:31,341 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:08:31,342 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 599 transitions.
[2024-11-08 17:08:31,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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)
[2024-11-08 17:08:31,342 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 599 transitions.
[2024-11-08 17:08:31,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72
[2024-11-08 17:08:31,343 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:08:31,343 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:08:31,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55
[2024-11-08 17:08:31,344 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr123REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:08:31,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:08:31,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1347763917, now seen corresponding path program 1 times
[2024-11-08 17:08:31,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:08:31,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778805210]
[2024-11-08 17:08:31,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:08:31,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:08:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:08:31,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:08:31,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:08:31,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778805210]
[2024-11-08 17:08:31,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778805210] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:08:31,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:08:31,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:08:31,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404363911]
[2024-11-08 17:08:31,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:08:31,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:08:31,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:08:31,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:08:31,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:08:31,582 INFO L87 Difference]: Start difference. First operand 496 states and 599 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:08:31,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:08:31,673 INFO L93 Difference]: Finished difference Result 512 states and 619 transitions.
[2024-11-08 17:08:31,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:08:31,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71
[2024-11-08 17:08:31,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:08:31,675 INFO L225 Difference]: With dead ends: 512
[2024-11-08 17:08:31,675 INFO L226 Difference]: Without dead ends: 512
[2024-11-08 17:08:31,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:08:31,676 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 4 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:08:31,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 988 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:08:31,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states.
[2024-11-08 17:08:31,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 508.
[2024-11-08 17:08:31,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 439 states have (on average 1.4009111617312073) internal successors, (615), 507 states have internal predecessors, (615), 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)
[2024-11-08 17:08:31,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 615 transitions.
[2024-11-08 17:08:31,683 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 615 transitions. Word has length 71
[2024-11-08 17:08:31,683 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:08:31,683 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 615 transitions.
[2024-11-08 17:08:31,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:08:31,684 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 615 transitions.
[2024-11-08 17:08:31,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-08 17:08:31,685 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:08:31,685 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:08:31,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56
[2024-11-08 17:08:31,686 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:08:31,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:08:31,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1367847919, now seen corresponding path program 2 times
[2024-11-08 17:08:31,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:08:31,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150695381]
[2024-11-08 17:08:31,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:08:31,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:08:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:08:37,432 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 10 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:08:37,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:08:37,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150695381]
[2024-11-08 17:08:37,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150695381] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:08:37,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182439376]
[2024-11-08 17:08:37,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 17:08:37,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:08:37,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:08:37,434 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:08:37,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-11-08 17:08:38,067 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 17:08:38,067 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 17:08:38,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 120 conjuncts are in the unsatisfiable core
[2024-11-08 17:08:38,080 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:08:38,085 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
[2024-11-08 17:08:38,137 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size
[2024-11-08 17:08:38,137 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 16
[2024-11-08 17:08:38,164 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2024-11-08 17:08:38,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14
[2024-11-08 17:08:38,283 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
[2024-11-08 17:08:38,525 INFO L349 Elim1Store]: treesize reduction 60, result has 31.0 percent of original size
[2024-11-08 17:08:38,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 41
[2024-11-08 17:08:38,689 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 26 treesize of output 19
[2024-11-08 17:08:38,723 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 26 treesize of output 19
[2024-11-08 17:08:38,816 INFO L349 Elim1Store]: treesize reduction 84, result has 30.0 percent of original size
[2024-11-08 17:08:38,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 33 treesize of output 48
[2024-11-08 17:08:39,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25
[2024-11-08 17:08:39,248 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 86 treesize of output 49
[2024-11-08 17:08:39,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-08 17:08:39,718 INFO L349 Elim1Store]: treesize reduction 88, result has 40.5 percent of original size
[2024-11-08 17:08:39,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 69
[2024-11-08 17:08:39,967 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:08:39,993 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
[2024-11-08 17:08:40,507 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
[2024-11-08 17:08:40,514 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 205 treesize of output 140
[2024-11-08 17:08:41,841 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:08:41,841 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 204 treesize of output 120
[2024-11-08 17:08:41,893 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
[2024-11-08 17:08:42,450 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 23 treesize of output 7
[2024-11-08 17:08:42,809 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 23 treesize of output 3
[2024-11-08 17:08:42,817 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 0 case distinctions, treesize of input 178 treesize of output 114
[2024-11-08 17:08:44,958 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
[2024-11-08 17:08:44,970 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 364 treesize of output 332
[2024-11-08 17:08:47,588 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 372 treesize of output 340
[2024-11-08 17:08:47,738 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
[2024-11-08 17:08:48,493 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 7 treesize of output 3
[2024-11-08 17:08:49,925 INFO L349 Elim1Store]: treesize reduction 48, result has 87.0 percent of original size
[2024-11-08 17:08:49,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 1 disjoint index pairs (out of 78 index pairs), introduced 17 new quantified variables, introduced 78 case distinctions, treesize of input 355 treesize of output 491
[2024-11-08 17:10:09,240 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 1076 treesize of output 949
[2024-11-08 17:10:13,109 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 931 treesize of output 723
[2024-11-08 17:10:15,384 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 27 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:10:15,385 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:10:19,481 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 14 treesize of output 12
[2024-11-08 17:10:19,491 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 20 treesize of output 16
[2024-11-08 17:10:23,329 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:10:23,329 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 57 treesize of output 48
[2024-11-08 17:10:23,333 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:10:23,351 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:10:23,351 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 130 treesize of output 130
[2024-11-08 17:10:23,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52
[2024-11-08 17:10:23,424 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:10:23,424 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 32 treesize of output 32
[2024-11-08 17:10:23,461 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:10:23,478 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:10:23,478 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 192 treesize of output 184
[2024-11-08 17:10:38,872 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 16 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:10:38,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182439376] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:10:38,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:10:38,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 30, 30] total 88
[2024-11-08 17:10:38,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285982518]
[2024-11-08 17:10:38,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:10:38,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 89 states
[2024-11-08 17:10:38,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:10:38,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants.
[2024-11-08 17:10:38,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=7440, Unknown=4, NotChecked=0, Total=7832
[2024-11-08 17:10:38,876 INFO L87 Difference]: Start difference. First operand 508 states and 615 transitions. Second operand has 89 states, 88 states have (on average 2.3068181818181817) internal successors, (203), 89 states have internal predecessors, (203), 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)
[2024-11-08 17:11:20,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:11:20,789 INFO L93 Difference]: Finished difference Result 580 states and 700 transitions.
[2024-11-08 17:11:20,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states.
[2024-11-08 17:11:20,790 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 88 states have (on average 2.3068181818181817) internal successors, (203), 89 states have internal predecessors, (203), 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 74
[2024-11-08 17:11:20,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:11:20,792 INFO L225 Difference]: With dead ends: 580
[2024-11-08 17:11:20,792 INFO L226 Difference]: Without dead ends: 580
[2024-11-08 17:11:20,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2818 ImplicationChecksByTransitivity, 50.9s TimeCoverageRelationStatistics Valid=1279, Invalid=12997, Unknown=4, NotChecked=0, Total=14280
[2024-11-08 17:11:20,793 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 684 mSDsluCounter, 9152 mSDsCounter, 0 mSdLazyCounter, 10400 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 9399 SdHoareTripleChecker+Invalid, 10457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 10400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:11:20,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 9399 Invalid, 10457 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 10400 Invalid, 0 Unknown, 0 Unchecked, 21.2s Time]
[2024-11-08 17:11:20,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states.
[2024-11-08 17:11:20,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 512.
[2024-11-08 17:11:20,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 443 states have (on average 1.4018058690744921) internal successors, (621), 511 states have internal predecessors, (621), 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)
[2024-11-08 17:11:20,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 621 transitions.
[2024-11-08 17:11:20,801 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 621 transitions. Word has length 74
[2024-11-08 17:11:20,801 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:11:20,802 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 621 transitions.
[2024-11-08 17:11:20,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 88 states have (on average 2.3068181818181817) internal successors, (203), 89 states have internal predecessors, (203), 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)
[2024-11-08 17:11:20,802 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 621 transitions.
[2024-11-08 17:11:20,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-08 17:11:20,803 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:11:20,804 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:11:20,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0
[2024-11-08 17:11:21,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:11:21,005 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr51REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:11:21,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:11:21,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1367847918, now seen corresponding path program 2 times
[2024-11-08 17:11:21,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:11:21,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865951297]
[2024-11-08 17:11:21,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:11:21,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:11:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:11:46,292 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:11:46,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:11:46,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865951297]
[2024-11-08 17:11:46,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865951297] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:11:46,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403625818]
[2024-11-08 17:11:46,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 17:11:46,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:11:46,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:11:46,295 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:11:46,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-11-08 17:11:47,000 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 17:11:47,000 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 17:11:47,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 149 conjuncts are in the unsatisfiable core
[2024-11-08 17:11:47,021 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:11:47,043 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
[2024-11-08 17:11:47,049 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
[2024-11-08 17:11:47,284 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:11:47,288 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
[2024-11-08 17:11:47,336 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size
[2024-11-08 17:11:47,337 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 16
[2024-11-08 17:11:47,461 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-08 17:11:47,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-11-08 17:11:47,513 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size
[2024-11-08 17:11:47,514 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
[2024-11-08 17:11:47,720 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
[2024-11-08 17:11:47,733 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 11 treesize of output 7
[2024-11-08 17:11:48,012 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size
[2024-11-08 17:11:48,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22
[2024-11-08 17:11:48,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18
[2024-11-08 17:11:48,206 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
[2024-11-08 17:11:48,215 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 43 treesize of output 32
[2024-11-08 17:11:48,290 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
[2024-11-08 17:11:48,306 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 43 treesize of output 32
[2024-11-08 17:11:48,389 INFO L349 Elim1Store]: treesize reduction 32, result has 45.8 percent of original size
[2024-11-08 17:11:48,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33
[2024-11-08 17:11:48,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 30
[2024-11-08 17:11:48,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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
[2024-11-08 17:11:48,912 INFO L349 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size
[2024-11-08 17:11:48,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 66
[2024-11-08 17:11:48,992 INFO L349 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size
[2024-11-08 17:11:48,992 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 2 case distinctions, treesize of input 30 treesize of output 32
[2024-11-08 17:11:49,796 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:11:49,892 INFO L349 Elim1Store]: treesize reduction 144, result has 26.5 percent of original size
[2024-11-08 17:11:49,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 125 treesize of output 153
[2024-11-08 17:11:50,602 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
[2024-11-08 17:11:50,616 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
[2024-11-08 17:11:51,995 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 450 treesize of output 309
[2024-11-08 17:11:52,187 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
[2024-11-08 17:11:55,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 468 treesize of output 315
[2024-11-08 17:11:55,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 29
[2024-11-08 17:11:58,252 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 19 treesize of output 11
[2024-11-08 17:11:58,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 466 treesize of output 317
[2024-11-08 17:12:03,207 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:12:03,208 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 813 treesize of output 767
[2024-11-08 17:12:03,629 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
[2024-11-08 17:12:09,243 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 738 treesize of output 698
[2024-11-08 17:12:09,543 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
[2024-11-08 17:12:13,745 INFO L349 Elim1Store]: treesize reduction 36, result has 94.5 percent of original size
[2024-11-08 17:12:13,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 1 disjoint index pairs (out of 153 index pairs), introduced 21 new quantified variables, introduced 153 case distinctions, treesize of input 730 treesize of output 1079
[2024-11-08 17:12:16,947 INFO L349 Elim1Store]: treesize reduction 36, result has 94.5 percent of original size
[2024-11-08 17:12:16,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 1 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 146 case distinctions, treesize of input 466 treesize of output 986
[2024-11-08 17:13:28,675 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory")
[2024-11-08 17:13:28,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101
[2024-11-08 17:13:28,677 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception
[2024-11-08 17:13:28,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:28,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58
[2024-11-08 17:13:28,878 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_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/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:133)
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.QuantifierPusher.pushInner(QuantifierPusher.java:274)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:194)
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.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:290)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:180)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.<init>(TraceCheckSpWp.java:159)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108)
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:302)
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:426)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273)
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:143)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124)
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)
... 67 more
[2024-11-08 17:13:28,885 INFO L158 Benchmark]: Toolchain (without parser) took 749281.81ms. Allocated memory was 186.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 155.9MB in the beginning and 1.0GB in the end (delta: -890.2MB). Peak memory consumption was 946.7MB. Max. memory is 16.1GB.
[2024-11-08 17:13:28,885 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 130.0MB. Free memory was 98.7MB in the beginning and 98.5MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:13:28,885 INFO L158 Benchmark]: CACSL2BoogieTranslator took 767.38ms. Allocated memory is still 186.6MB. Free memory was 155.8MB in the beginning and 139.8MB in the end (delta: 15.9MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB.
[2024-11-08 17:13:28,885 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.59ms. Allocated memory is still 186.6MB. Free memory was 139.8MB in the beginning and 136.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-11-08 17:13:28,885 INFO L158 Benchmark]: Boogie Preprocessor took 136.26ms. Allocated memory is still 186.6MB. Free memory was 136.7MB in the beginning and 129.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2024-11-08 17:13:28,885 INFO L158 Benchmark]: RCFGBuilder took 1545.87ms. Allocated memory is still 186.6MB. Free memory was 129.4MB in the beginning and 144.8MB in the end (delta: -15.3MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB.
[2024-11-08 17:13:28,885 INFO L158 Benchmark]: TraceAbstraction took 746747.17ms. Allocated memory was 186.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 144.8MB in the beginning and 1.0GB in the end (delta: -901.3MB). Peak memory consumption was 935.3MB. Max. memory is 16.1GB.
[2024-11-08 17:13:28,886 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.35ms. Allocated memory is still 130.0MB. Free memory was 98.7MB in the beginning and 98.5MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 767.38ms. Allocated memory is still 186.6MB. Free memory was 155.8MB in the beginning and 139.8MB in the end (delta: 15.9MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 76.59ms. Allocated memory is still 186.6MB. Free memory was 139.8MB in the beginning and 136.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 136.26ms. Allocated memory is still 186.6MB. Free memory was 136.7MB in the beginning and 129.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
* RCFGBuilder took 1545.87ms. Allocated memory is still 186.6MB. Free memory was 129.4MB in the beginning and 144.8MB in the end (delta: -15.3MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB.
* TraceAbstraction took 746747.17ms. Allocated memory was 186.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 144.8MB in the beginning and 1.0GB in the end (delta: -901.3MB). Peak memory consumption was 935.3MB. 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_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/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_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0521.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX --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 aa94cb741c9c7eaa2ca9bb871f44dd4c619faf21975944b61e221a61ad9730d7
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:13:31,811 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:13:31,950 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2024-11-08 17:13:31,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:13:31,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:13:32,015 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:13:32,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:13:32,019 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:13:32,020 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:13:32,022 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 17:13:32,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:13:32,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:13:32,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:13:32,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 17:13:32,025 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 17:13:32,028 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:13:32,028 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 17:13:32,029 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 17:13:32,029 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 17:13:32,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 17:13:32,034 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-08 17:13:32,034 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-08 17:13:32,035 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-08 17:13:32,035 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:13:32,035 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-08 17:13:32,036 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-08 17:13:32,036 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 17:13:32,036 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-08 17:13:32,037 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 17:13:32,040 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 17:13:32,041 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 17:13:32,041 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:13:32,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 17:13:32,042 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:13:32,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 17:13:32,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:13:32,044 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:13:32,044 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:13:32,046 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-08 17:13:32,046 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-08 17:13:32,046 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:13:32,047 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:13:32,047 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:13:32,047 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:13:32,048 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa94cb741c9c7eaa2ca9bb871f44dd4c619faf21975944b61e221a61ad9730d7
[2024-11-08 17:13:32,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:13:32,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:13:32,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:13:32,627 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 17:13:32,628 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 17:13:32,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/memsafety/test-0521.i
Unable to find full path for "g++"
[2024-11-08 17:13:35,201 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:13:35,604 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 17:13:35,605 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/sv-benchmarks/c/memsafety/test-0521.i
[2024-11-08 17:13:35,622 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/data/3eace194f/0eaa3b07945c4fe4b8fe720017311bcd/FLAGa574544f6
[2024-11-08 17:13:35,641 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/data/3eace194f/0eaa3b07945c4fe4b8fe720017311bcd
[2024-11-08 17:13:35,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:13:35,648 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:13:35,649 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:13:35,650 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:13:35,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:13:35,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:13:35" (1/1) ...
[2024-11-08 17:13:35,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a9e9124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:35, skipping insertion in model container
[2024-11-08 17:13:35,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:13:35" (1/1) ...
[2024-11-08 17:13:35,735 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:13:36,393 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:13:36,419 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 17:13:36,584 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:13:36,643 INFO L204 MainTranslator]: Completed translation
[2024-11-08 17:13:36,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:36 WrapperNode
[2024-11-08 17:13:36,644 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:13:36,646 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:13:36,646 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:13:36,646 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:13:36,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:36" (1/1) ...
[2024-11-08 17:13:36,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:36" (1/1) ...
[2024-11-08 17:13:36,762 INFO L138 Inliner]: procedures = 128, calls = 95, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 303
[2024-11-08 17:13:36,763 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:13:36,767 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:13:36,767 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:13:36,767 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:13:36,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:36" (1/1) ...
[2024-11-08 17:13:36,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:36" (1/1) ...
[2024-11-08 17:13:36,790 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:36" (1/1) ...
[2024-11-08 17:13:36,861 INFO L175 MemorySlicer]: Split 76 memory accesses to 6 slices as follows [31, 2, 16, 8, 3, 16]. 41 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [0, 2, 0, 2, 1, 0]. The 26 writes are split as follows [8, 0, 8, 1, 1, 8].
[2024-11-08 17:13:36,861 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:36" (1/1) ...
[2024-11-08 17:13:36,862 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:36" (1/1) ...
[2024-11-08 17:13:36,882 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:36" (1/1) ...
[2024-11-08 17:13:36,892 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:36" (1/1) ...
[2024-11-08 17:13:36,896 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:36" (1/1) ...
[2024-11-08 17:13:36,899 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:36" (1/1) ...
[2024-11-08 17:13:36,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:13:36,907 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:13:36,907 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:13:36,907 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:13:36,912 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:36" (1/1) ...
[2024-11-08 17:13:36,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:13:36,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:36,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:36,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:13:37,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-08 17:13:37,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:13:37,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-08 17:13:37,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-08 17:13:37,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-08 17:13:37,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-11-08 17:13:37,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3
[2024-11-08 17:13:37,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4
[2024-11-08 17:13:37,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5
[2024-11-08 17:13:37,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-08 17:13:37,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-08 17:13:37,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-08 17:13:37,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3
[2024-11-08 17:13:37,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4
[2024-11-08 17:13:37,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5
[2024-11-08 17:13:37,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-08 17:13:37,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-11-08 17:13:37,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-11-08 17:13:37,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2
[2024-11-08 17:13:37,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3
[2024-11-08 17:13:37,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4
[2024-11-08 17:13:37,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5
[2024-11-08 17:13:37,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-08 17:13:37,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-08 17:13:37,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-11-08 17:13:37,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3
[2024-11-08 17:13:37,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4
[2024-11-08 17:13:37,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5
[2024-11-08 17:13:37,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-08 17:13:37,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-08 17:13:37,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-11-08 17:13:37,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3
[2024-11-08 17:13:37,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4
[2024-11-08 17:13:37,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5
[2024-11-08 17:13:37,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:13:37,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:13:37,353 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 17:13:37,358 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:13:39,335 INFO L? ?]: Removed 347 outVars from TransFormulas that were not future-live.
[2024-11-08 17:13:39,335 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 17:13:39,373 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:13:39,373 INFO L316 CfgBuilder]: Removed 3 assume(true) statements.
[2024-11-08 17:13:39,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:39 BoogieIcfgContainer
[2024-11-08 17:13:39,374 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:13:39,380 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:13:39,380 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:13:39,385 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:13:39,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:13:35" (1/3) ...
[2024-11-08 17:13:39,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bfb230e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:13:39, skipping insertion in model container
[2024-11-08 17:13:39,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:36" (2/3) ...
[2024-11-08 17:13:39,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bfb230e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:13:39, skipping insertion in model container
[2024-11-08 17:13:39,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:39" (3/3) ...
[2024-11-08 17:13:39,391 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0521.i
[2024-11-08 17:13:39,417 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:13:39,417 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 152 error locations.
[2024-11-08 17:13:39,506 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:13:39,516 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;@3fed138a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:13:39,517 INFO L334 AbstractCegarLoop]: Starting to check reachability of 152 error locations.
[2024-11-08 17:13:39,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 317 states, 164 states have (on average 2.158536585365854) internal successors, (354), 316 states have internal predecessors, (354), 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)
[2024-11-08 17:13:39,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-11-08 17:13:39,535 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:39,536 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-11-08 17:13:39,536 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:39,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:39,548 INFO L85 PathProgramCache]: Analyzing trace with hash 28728519, now seen corresponding path program 1 times
[2024-11-08 17:13:39,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:39,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1966915388]
[2024-11-08 17:13:39,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:39,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:39,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:39,572 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:39,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 17:13:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:39,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:39,752 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:39,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:39,775 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:39,776 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:39,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966915388]
[2024-11-08 17:13:39,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966915388] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:39,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:39,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:13:39,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473972554]
[2024-11-08 17:13:39,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:39,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 17:13:39,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:39,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 17:13:39,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:13:39,828 INFO L87 Difference]: Start difference. First operand has 317 states, 164 states have (on average 2.158536585365854) internal successors, (354), 316 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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)
[2024-11-08 17:13:39,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:39,869 INFO L93 Difference]: Finished difference Result 317 states and 349 transitions.
[2024-11-08 17:13:39,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 17:13:39,874 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5
[2024-11-08 17:13:39,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:39,890 INFO L225 Difference]: With dead ends: 317
[2024-11-08 17:13:39,890 INFO L226 Difference]: Without dead ends: 315
[2024-11-08 17:13:39,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:13:39,898 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:39,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:13:39,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states.
[2024-11-08 17:13:39,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315.
[2024-11-08 17:13:39,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 163 states have (on average 2.128834355828221) internal successors, (347), 314 states have internal predecessors, (347), 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)
[2024-11-08 17:13:39,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 347 transitions.
[2024-11-08 17:13:39,985 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 347 transitions. Word has length 5
[2024-11-08 17:13:39,986 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:39,986 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 347 transitions.
[2024-11-08 17:13:39,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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)
[2024-11-08 17:13:39,987 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 347 transitions.
[2024-11-08 17:13:39,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-08 17:13:39,988 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:39,988 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:40,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:40,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:40,193 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:40,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:40,194 INFO L85 PathProgramCache]: Analyzing trace with hash 889539464, now seen corresponding path program 1 times
[2024-11-08 17:13:40,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:40,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1405152304]
[2024-11-08 17:13:40,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:40,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:40,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:40,199 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:40,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 17:13:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:40,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:40,344 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:40,417 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
[2024-11-08 17:13:40,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:40,441 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:40,442 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:40,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405152304]
[2024-11-08 17:13:40,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405152304] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:40,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:40,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:13:40,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336491930]
[2024-11-08 17:13:40,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:40,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:13:40,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:40,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:13:40,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:40,451 INFO L87 Difference]: Start difference. First operand 315 states and 347 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-08 17:13:41,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:41,387 INFO L93 Difference]: Finished difference Result 299 states and 331 transitions.
[2024-11-08 17:13:41,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:13:41,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6
[2024-11-08 17:13:41,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:41,391 INFO L225 Difference]: With dead ends: 299
[2024-11-08 17:13:41,391 INFO L226 Difference]: Without dead ends: 299
[2024-11-08 17:13:41,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:41,393 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 62 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:41,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 423 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-08 17:13:41,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states.
[2024-11-08 17:13:41,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299.
[2024-11-08 17:13:41,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 163 states have (on average 2.0306748466257667) internal successors, (331), 298 states have internal predecessors, (331), 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)
[2024-11-08 17:13:41,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 331 transitions.
[2024-11-08 17:13:41,415 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 331 transitions. Word has length 6
[2024-11-08 17:13:41,415 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:41,416 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 331 transitions.
[2024-11-08 17:13:41,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-08 17:13:41,416 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 331 transitions.
[2024-11-08 17:13:41,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-08 17:13:41,417 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:41,417 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:41,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:41,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:41,618 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:41,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:41,621 INFO L85 PathProgramCache]: Analyzing trace with hash 889539465, now seen corresponding path program 1 times
[2024-11-08 17:13:41,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:41,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [324436642]
[2024-11-08 17:13:41,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:41,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:41,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:41,625 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:41,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 17:13:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:41,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:41,797 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:41,816 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
[2024-11-08 17:13:41,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:41,835 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:41,835 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:41,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324436642]
[2024-11-08 17:13:41,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324436642] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:41,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:41,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:13:41,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893219286]
[2024-11-08 17:13:41,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:41,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:13:41,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:41,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:13:41,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:41,839 INFO L87 Difference]: Start difference. First operand 299 states and 331 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-08 17:13:42,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:42,829 INFO L93 Difference]: Finished difference Result 283 states and 315 transitions.
[2024-11-08 17:13:42,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:13:42,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6
[2024-11-08 17:13:42,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:42,834 INFO L225 Difference]: With dead ends: 283
[2024-11-08 17:13:42,834 INFO L226 Difference]: Without dead ends: 283
[2024-11-08 17:13:42,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:42,836 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 62 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:42,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 432 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-08 17:13:42,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states.
[2024-11-08 17:13:42,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283.
[2024-11-08 17:13:42,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 163 states have (on average 1.9325153374233128) internal successors, (315), 282 states have internal predecessors, (315), 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)
[2024-11-08 17:13:42,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 315 transitions.
[2024-11-08 17:13:42,853 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 315 transitions. Word has length 6
[2024-11-08 17:13:42,853 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:42,853 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 315 transitions.
[2024-11-08 17:13:42,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-08 17:13:42,854 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 315 transitions.
[2024-11-08 17:13:42,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-08 17:13:42,854 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:42,855 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:42,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-08 17:13:43,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:43,060 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:43,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:43,061 INFO L85 PathProgramCache]: Analyzing trace with hash 889540555, now seen corresponding path program 1 times
[2024-11-08 17:13:43,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:43,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1976850905]
[2024-11-08 17:13:43,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:43,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:43,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:43,065 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:43,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 17:13:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:43,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:43,190 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:43,197 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
[2024-11-08 17:13:43,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:43,218 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:43,218 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:43,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976850905]
[2024-11-08 17:13:43,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976850905] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:43,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:43,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:13:43,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714385673]
[2024-11-08 17:13:43,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:43,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:13:43,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:43,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:13:43,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:43,221 INFO L87 Difference]: Start difference. First operand 283 states and 315 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-08 17:13:43,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:43,891 INFO L93 Difference]: Finished difference Result 281 states and 313 transitions.
[2024-11-08 17:13:43,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:13:43,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6
[2024-11-08 17:13:43,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:43,893 INFO L225 Difference]: With dead ends: 281
[2024-11-08 17:13:43,893 INFO L226 Difference]: Without dead ends: 281
[2024-11-08 17:13:43,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:43,895 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 6 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:43,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 469 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 17:13:43,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states.
[2024-11-08 17:13:43,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281.
[2024-11-08 17:13:43,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 163 states have (on average 1.9202453987730062) internal successors, (313), 280 states have internal predecessors, (313), 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)
[2024-11-08 17:13:43,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 313 transitions.
[2024-11-08 17:13:43,910 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 313 transitions. Word has length 6
[2024-11-08 17:13:43,911 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:43,911 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 313 transitions.
[2024-11-08 17:13:43,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-08 17:13:43,912 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 313 transitions.
[2024-11-08 17:13:43,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-08 17:13:43,912 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:43,912 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:43,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-08 17:13:44,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:44,114 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:44,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:44,114 INFO L85 PathProgramCache]: Analyzing trace with hash 889540556, now seen corresponding path program 1 times
[2024-11-08 17:13:44,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:44,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [909709734]
[2024-11-08 17:13:44,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:44,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:44,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:44,118 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:44,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 17:13:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:44,254 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:44,257 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:44,268 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
[2024-11-08 17:13:44,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:44,301 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:44,301 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:44,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909709734]
[2024-11-08 17:13:44,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909709734] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:44,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:44,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:13:44,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980623183]
[2024-11-08 17:13:44,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:44,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:13:44,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:44,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:13:44,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:44,306 INFO L87 Difference]: Start difference. First operand 281 states and 313 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-08 17:13:45,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:45,063 INFO L93 Difference]: Finished difference Result 279 states and 311 transitions.
[2024-11-08 17:13:45,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:13:45,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6
[2024-11-08 17:13:45,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:45,066 INFO L225 Difference]: With dead ends: 279
[2024-11-08 17:13:45,066 INFO L226 Difference]: Without dead ends: 279
[2024-11-08 17:13:45,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:45,068 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 6 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:45,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 479 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 17:13:45,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states.
[2024-11-08 17:13:45,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279.
[2024-11-08 17:13:45,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 163 states have (on average 1.9079754601226995) internal successors, (311), 278 states have internal predecessors, (311), 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)
[2024-11-08 17:13:45,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 311 transitions.
[2024-11-08 17:13:45,081 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 311 transitions. Word has length 6
[2024-11-08 17:13:45,081 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:45,082 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 311 transitions.
[2024-11-08 17:13:45,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-08 17:13:45,082 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 311 transitions.
[2024-11-08 17:13:45,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 17:13:45,083 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:45,083 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:45,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:45,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:45,284 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:45,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:45,285 INFO L85 PathProgramCache]: Analyzing trace with hash 148933577, now seen corresponding path program 1 times
[2024-11-08 17:13:45,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:45,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [949918199]
[2024-11-08 17:13:45,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:45,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:45,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:45,288 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:45,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-08 17:13:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:45,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:45,413 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:45,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:45,534 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:45,535 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:45,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949918199]
[2024-11-08 17:13:45,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949918199] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:45,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:45,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:13:45,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866182638]
[2024-11-08 17:13:45,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:45,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:13:45,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:45,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:13:45,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:13:45,541 INFO L87 Difference]: Start difference. First operand 279 states and 311 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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)
[2024-11-08 17:13:45,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:45,739 INFO L93 Difference]: Finished difference Result 344 states and 385 transitions.
[2024-11-08 17:13:45,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:13:45,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8
[2024-11-08 17:13:45,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:45,745 INFO L225 Difference]: With dead ends: 344
[2024-11-08 17:13:45,745 INFO L226 Difference]: Without dead ends: 344
[2024-11-08 17:13:45,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:13:45,749 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 70 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:45,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 895 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:13:45,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states.
[2024-11-08 17:13:45,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 284.
[2024-11-08 17:13:45,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 168 states have (on average 1.8869047619047619) internal successors, (317), 283 states have internal predecessors, (317), 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)
[2024-11-08 17:13:45,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 317 transitions.
[2024-11-08 17:13:45,765 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 317 transitions. Word has length 8
[2024-11-08 17:13:45,766 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:45,766 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 317 transitions.
[2024-11-08 17:13:45,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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)
[2024-11-08 17:13:45,767 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 317 transitions.
[2024-11-08 17:13:45,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-08 17:13:45,767 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:45,767 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:45,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:45,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:45,969 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:45,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:45,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1322864081, now seen corresponding path program 1 times
[2024-11-08 17:13:45,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:45,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2077634123]
[2024-11-08 17:13:45,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:45,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:45,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:45,972 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:45,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-08 17:13:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:46,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:46,114 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:46,127 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
[2024-11-08 17:13:46,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:46,141 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:46,142 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:46,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077634123]
[2024-11-08 17:13:46,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077634123] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:46,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:46,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:13:46,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585291918]
[2024-11-08 17:13:46,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:46,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:13:46,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:46,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:13:46,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:46,146 INFO L87 Difference]: Start difference. First operand 284 states and 317 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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)
[2024-11-08 17:13:46,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:46,778 INFO L93 Difference]: Finished difference Result 282 states and 315 transitions.
[2024-11-08 17:13:46,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:13:46,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2024-11-08 17:13:46,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:46,781 INFO L225 Difference]: With dead ends: 282
[2024-11-08 17:13:46,781 INFO L226 Difference]: Without dead ends: 282
[2024-11-08 17:13:46,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:46,782 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 2 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:46,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 468 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 17:13:46,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states.
[2024-11-08 17:13:46,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282.
[2024-11-08 17:13:46,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 168 states have (on average 1.875) internal successors, (315), 281 states have internal predecessors, (315), 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)
[2024-11-08 17:13:46,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 315 transitions.
[2024-11-08 17:13:46,791 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 315 transitions. Word has length 11
[2024-11-08 17:13:46,791 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:46,791 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 315 transitions.
[2024-11-08 17:13:46,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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)
[2024-11-08 17:13:46,791 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 315 transitions.
[2024-11-08 17:13:46,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-08 17:13:46,792 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:46,793 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:46,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:46,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:46,994 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:46,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:46,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1322864082, now seen corresponding path program 1 times
[2024-11-08 17:13:46,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:46,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1771204411]
[2024-11-08 17:13:46,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:46,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:46,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:46,997 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:47,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-08 17:13:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:47,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:47,141 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:47,152 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
[2024-11-08 17:13:47,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:47,180 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:47,180 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:47,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771204411]
[2024-11-08 17:13:47,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771204411] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:47,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:47,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:13:47,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404156001]
[2024-11-08 17:13:47,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:47,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:13:47,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:47,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:13:47,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:47,183 INFO L87 Difference]: Start difference. First operand 282 states and 315 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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)
[2024-11-08 17:13:47,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:47,896 INFO L93 Difference]: Finished difference Result 280 states and 313 transitions.
[2024-11-08 17:13:47,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:13:47,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2024-11-08 17:13:47,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:47,898 INFO L225 Difference]: With dead ends: 280
[2024-11-08 17:13:47,898 INFO L226 Difference]: Without dead ends: 280
[2024-11-08 17:13:47,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:47,899 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 2 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:47,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 478 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 17:13:47,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states.
[2024-11-08 17:13:47,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280.
[2024-11-08 17:13:47,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 168 states have (on average 1.8630952380952381) internal successors, (313), 279 states have internal predecessors, (313), 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)
[2024-11-08 17:13:47,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 313 transitions.
[2024-11-08 17:13:47,908 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 313 transitions. Word has length 11
[2024-11-08 17:13:47,909 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:47,909 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 313 transitions.
[2024-11-08 17:13:47,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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)
[2024-11-08 17:13:47,909 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 313 transitions.
[2024-11-08 17:13:47,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-08 17:13:47,910 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:47,910 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:47,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:48,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:48,115 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:48,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:48,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1007454123, now seen corresponding path program 1 times
[2024-11-08 17:13:48,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:48,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1092411705]
[2024-11-08 17:13:48,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:48,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:48,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:48,117 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:48,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-08 17:13:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:48,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:48,246 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:48,334 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:13:48,343 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
[2024-11-08 17:13:48,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:48,430 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:48,430 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:48,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092411705]
[2024-11-08 17:13:48,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092411705] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:48,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:48,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 17:13:48,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611315451]
[2024-11-08 17:13:48,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:48,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:13:48,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:48,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:13:48,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:13:48,433 INFO L87 Difference]: Start difference. First operand 280 states and 313 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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)
[2024-11-08 17:13:48,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:48,948 INFO L93 Difference]: Finished difference Result 334 states and 376 transitions.
[2024-11-08 17:13:48,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 17:13:48,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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
[2024-11-08 17:13:48,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:48,951 INFO L225 Difference]: With dead ends: 334
[2024-11-08 17:13:48,951 INFO L226 Difference]: Without dead ends: 334
[2024-11-08 17:13:48,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2024-11-08 17:13:48,952 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 86 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:48,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 1464 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 17:13:48,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states.
[2024-11-08 17:13:48,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 283.
[2024-11-08 17:13:48,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 171 states have (on average 1.847953216374269) internal successors, (316), 282 states have internal predecessors, (316), 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)
[2024-11-08 17:13:48,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 316 transitions.
[2024-11-08 17:13:48,962 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 316 transitions. Word has length 13
[2024-11-08 17:13:48,962 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:48,963 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 316 transitions.
[2024-11-08 17:13:48,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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)
[2024-11-08 17:13:48,963 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 316 transitions.
[2024-11-08 17:13:48,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-08 17:13:48,964 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:48,964 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:48,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:49,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:49,165 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:49,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:49,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1754761886, now seen corresponding path program 1 times
[2024-11-08 17:13:49,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:49,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1286454307]
[2024-11-08 17:13:49,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:49,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:49,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:49,168 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:49,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-08 17:13:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:49,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:49,310 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:49,496 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:49,497 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:49,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286454307]
[2024-11-08 17:13:49,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286454307] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:49,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:49,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:13:49,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143728509]
[2024-11-08 17:13:49,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:49,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:13:49,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:49,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:13:49,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:13:49,499 INFO L87 Difference]: Start difference. First operand 283 states and 316 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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)
[2024-11-08 17:13:49,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:49,754 INFO L93 Difference]: Finished difference Result 408 states and 455 transitions.
[2024-11-08 17:13:49,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:13:49,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15
[2024-11-08 17:13:49,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:49,757 INFO L225 Difference]: With dead ends: 408
[2024-11-08 17:13:49,758 INFO L226 Difference]: Without dead ends: 408
[2024-11-08 17:13:49,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:13:49,760 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 135 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:49,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1151 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:13:49,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states.
[2024-11-08 17:13:49,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 348.
[2024-11-08 17:13:49,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 236 states have (on average 1.8940677966101696) internal successors, (447), 347 states have internal predecessors, (447), 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)
[2024-11-08 17:13:49,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 447 transitions.
[2024-11-08 17:13:49,774 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 447 transitions. Word has length 15
[2024-11-08 17:13:49,774 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:49,774 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 447 transitions.
[2024-11-08 17:13:49,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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)
[2024-11-08 17:13:49,775 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 447 transitions.
[2024-11-08 17:13:49,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-08 17:13:49,777 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:49,778 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:49,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-11-08 17:13:49,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:49,982 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:49,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:49,983 INFO L85 PathProgramCache]: Analyzing trace with hash 30543974, now seen corresponding path program 1 times
[2024-11-08 17:13:49,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:49,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [607739315]
[2024-11-08 17:13:49,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:49,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:49,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:49,986 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:49,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-08 17:13:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:50,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:50,133 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:50,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:50,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:50,156 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:50,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607739315]
[2024-11-08 17:13:50,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607739315] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:50,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:50,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:13:50,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212559562]
[2024-11-08 17:13:50,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:50,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:13:50,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:50,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:13:50,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:50,159 INFO L87 Difference]: Start difference. First operand 348 states and 447 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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)
[2024-11-08 17:13:50,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:50,194 INFO L93 Difference]: Finished difference Result 332 states and 420 transitions.
[2024-11-08 17:13:50,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:13:50,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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
[2024-11-08 17:13:50,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:50,196 INFO L225 Difference]: With dead ends: 332
[2024-11-08 17:13:50,197 INFO L226 Difference]: Without dead ends: 332
[2024-11-08 17:13:50,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:50,198 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 0 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:50,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 600 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:13:50,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states.
[2024-11-08 17:13:50,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332.
[2024-11-08 17:13:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 220 states have (on average 1.9090909090909092) internal successors, (420), 331 states have internal predecessors, (420), 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)
[2024-11-08 17:13:50,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 420 transitions.
[2024-11-08 17:13:50,209 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 420 transitions. Word has length 17
[2024-11-08 17:13:50,209 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:50,209 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 420 transitions.
[2024-11-08 17:13:50,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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)
[2024-11-08 17:13:50,210 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 420 transitions.
[2024-11-08 17:13:50,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-08 17:13:50,210 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:50,210 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:50,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-11-08 17:13:50,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:50,412 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:50,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:50,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1596171590, now seen corresponding path program 1 times
[2024-11-08 17:13:50,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:50,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [437297275]
[2024-11-08 17:13:50,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:50,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:50,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:50,416 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:50,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-08 17:13:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:50,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:50,554 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:50,572 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
[2024-11-08 17:13:50,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:50,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:50,582 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:50,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437297275]
[2024-11-08 17:13:50,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437297275] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:50,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:50,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:13:50,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218787770]
[2024-11-08 17:13:50,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:50,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:13:50,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:50,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:13:50,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:50,585 INFO L87 Difference]: Start difference. First operand 332 states and 420 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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)
[2024-11-08 17:13:51,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:51,293 INFO L93 Difference]: Finished difference Result 316 states and 388 transitions.
[2024-11-08 17:13:51,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:13:51,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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
[2024-11-08 17:13:51,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:51,296 INFO L225 Difference]: With dead ends: 316
[2024-11-08 17:13:51,296 INFO L226 Difference]: Without dead ends: 316
[2024-11-08 17:13:51,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:51,297 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 62 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:51,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 363 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 17:13:51,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states.
[2024-11-08 17:13:51,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316.
[2024-11-08 17:13:51,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 220 states have (on average 1.7636363636363637) internal successors, (388), 315 states have internal predecessors, (388), 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)
[2024-11-08 17:13:51,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 388 transitions.
[2024-11-08 17:13:51,307 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 388 transitions. Word has length 17
[2024-11-08 17:13:51,307 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:51,308 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 388 transitions.
[2024-11-08 17:13:51,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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)
[2024-11-08 17:13:51,308 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 388 transitions.
[2024-11-08 17:13:51,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-08 17:13:51,309 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:51,309 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:51,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:51,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:51,510 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr94REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:51,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:51,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1596171591, now seen corresponding path program 1 times
[2024-11-08 17:13:51,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:51,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1092250621]
[2024-11-08 17:13:51,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:51,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:51,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:51,514 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:51,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-08 17:13:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:51,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:51,668 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:51,681 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
[2024-11-08 17:13:51,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:51,695 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:51,695 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:51,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092250621]
[2024-11-08 17:13:51,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092250621] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:51,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:51,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:13:51,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410369971]
[2024-11-08 17:13:51,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:51,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:13:51,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:51,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:13:51,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:51,698 INFO L87 Difference]: Start difference. First operand 316 states and 388 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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)
[2024-11-08 17:13:52,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:52,490 INFO L93 Difference]: Finished difference Result 300 states and 356 transitions.
[2024-11-08 17:13:52,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:13:52,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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
[2024-11-08 17:13:52,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:52,493 INFO L225 Difference]: With dead ends: 300
[2024-11-08 17:13:52,493 INFO L226 Difference]: Without dead ends: 300
[2024-11-08 17:13:52,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:13:52,494 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 62 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:52,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 372 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 17:13:52,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states.
[2024-11-08 17:13:52,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300.
[2024-11-08 17:13:52,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 220 states have (on average 1.6181818181818182) internal successors, (356), 299 states have internal predecessors, (356), 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)
[2024-11-08 17:13:52,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 356 transitions.
[2024-11-08 17:13:52,504 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 356 transitions. Word has length 17
[2024-11-08 17:13:52,504 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:52,504 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 356 transitions.
[2024-11-08 17:13:52,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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)
[2024-11-08 17:13:52,505 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 356 transitions.
[2024-11-08 17:13:52,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-11-08 17:13:52,506 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:52,506 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:52,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2024-11-08 17:13:52,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:52,711 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr95REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:52,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:52,711 INFO L85 PathProgramCache]: Analyzing trace with hash 617582823, now seen corresponding path program 1 times
[2024-11-08 17:13:52,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:52,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1029643209]
[2024-11-08 17:13:52,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:52,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:52,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:52,715 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:52,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-11-08 17:13:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:52,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:52,864 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:53,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:53,031 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:53,031 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:53,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029643209]
[2024-11-08 17:13:53,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029643209] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:53,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:53,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:13:53,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950839716]
[2024-11-08 17:13:53,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:53,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:13:53,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:53,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:13:53,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:13:53,034 INFO L87 Difference]: Start difference. First operand 300 states and 356 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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)
[2024-11-08 17:13:53,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:53,304 INFO L93 Difference]: Finished difference Result 318 states and 359 transitions.
[2024-11-08 17:13:53,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:13:53,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 19
[2024-11-08 17:13:53,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:53,307 INFO L225 Difference]: With dead ends: 318
[2024-11-08 17:13:53,307 INFO L226 Difference]: Without dead ends: 318
[2024-11-08 17:13:53,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:13:53,308 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 66 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:53,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1022 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:13:53,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states.
[2024-11-08 17:13:53,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 298.
[2024-11-08 17:13:53,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 218 states have (on average 1.610091743119266) internal successors, (351), 297 states have internal predecessors, (351), 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)
[2024-11-08 17:13:53,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 351 transitions.
[2024-11-08 17:13:53,318 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 351 transitions. Word has length 19
[2024-11-08 17:13:53,319 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:53,319 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 351 transitions.
[2024-11-08 17:13:53,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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)
[2024-11-08 17:13:53,319 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 351 transitions.
[2024-11-08 17:13:53,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-11-08 17:13:53,320 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:53,320 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:53,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-11-08 17:13:53,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:53,521 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:53,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:53,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1952705991, now seen corresponding path program 1 times
[2024-11-08 17:13:53,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:53,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [922353161]
[2024-11-08 17:13:53,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:53,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:53,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:53,525 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:53,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-11-08 17:13:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:53,695 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:53,697 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:53,702 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
[2024-11-08 17:13:53,794 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size
[2024-11-08 17:13:53,795 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
[2024-11-08 17:13:53,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:53,823 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:53,823 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:53,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922353161]
[2024-11-08 17:13:53,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922353161] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:53,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:53,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:13:53,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994030471]
[2024-11-08 17:13:53,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:53,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:13:53,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:53,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:13:53,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:13:53,826 INFO L87 Difference]: Start difference. First operand 298 states and 351 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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)
[2024-11-08 17:13:55,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:55,308 INFO L93 Difference]: Finished difference Result 320 states and 376 transitions.
[2024-11-08 17:13:55,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:13:55,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 19
[2024-11-08 17:13:55,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:55,311 INFO L225 Difference]: With dead ends: 320
[2024-11-08 17:13:55,311 INFO L226 Difference]: Without dead ends: 320
[2024-11-08 17:13:55,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:13:55,313 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 86 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:55,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 648 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-08 17:13:55,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states.
[2024-11-08 17:13:55,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 301.
[2024-11-08 17:13:55,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 223 states have (on average 1.6053811659192825) internal successors, (358), 300 states have internal predecessors, (358), 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)
[2024-11-08 17:13:55,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 358 transitions.
[2024-11-08 17:13:55,328 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 358 transitions. Word has length 19
[2024-11-08 17:13:55,328 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:55,329 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 358 transitions.
[2024-11-08 17:13:55,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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)
[2024-11-08 17:13:55,329 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 358 transitions.
[2024-11-08 17:13:55,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-11-08 17:13:55,330 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:55,330 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:55,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:55,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:55,531 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:55,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:55,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1952705990, now seen corresponding path program 1 times
[2024-11-08 17:13:55,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:55,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [409236578]
[2024-11-08 17:13:55,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:55,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:55,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:55,535 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:55,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-11-08 17:13:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:55,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:55,710 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:55,729 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
[2024-11-08 17:13:55,741 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
[2024-11-08 17:13:55,929 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:13:55,931 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
[2024-11-08 17:13:55,953 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-08 17:13:55,953 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
[2024-11-08 17:13:55,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:55,990 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:55,990 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:55,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409236578]
[2024-11-08 17:13:55,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409236578] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:55,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:55,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:13:55,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808410468]
[2024-11-08 17:13:55,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:55,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:13:55,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:55,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:13:55,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:13:55,993 INFO L87 Difference]: Start difference. First operand 301 states and 358 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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)
[2024-11-08 17:13:57,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:57,870 INFO L93 Difference]: Finished difference Result 308 states and 365 transitions.
[2024-11-08 17:13:57,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:13:57,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 19
[2024-11-08 17:13:57,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:57,873 INFO L225 Difference]: With dead ends: 308
[2024-11-08 17:13:57,873 INFO L226 Difference]: Without dead ends: 308
[2024-11-08 17:13:57,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:13:57,874 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 66 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:57,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 600 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2024-11-08 17:13:57,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states.
[2024-11-08 17:13:57,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 300.
[2024-11-08 17:13:57,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 223 states have (on average 1.600896860986547) internal successors, (357), 299 states have internal predecessors, (357), 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)
[2024-11-08 17:13:57,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 357 transitions.
[2024-11-08 17:13:57,888 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 357 transitions. Word has length 19
[2024-11-08 17:13:57,889 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:57,889 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 357 transitions.
[2024-11-08 17:13:57,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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)
[2024-11-08 17:13:57,889 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 357 transitions.
[2024-11-08 17:13:57,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-08 17:13:57,890 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:57,890 INFO L215 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]
[2024-11-08 17:13:57,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2024-11-08 17:13:58,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:58,094 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr104REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:58,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:58,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1867538097, now seen corresponding path program 1 times
[2024-11-08 17:13:58,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:58,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [594497655]
[2024-11-08 17:13:58,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:58,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:58,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:58,097 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:58,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-11-08 17:13:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:58,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:58,272 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:58,422 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
[2024-11-08 17:13:58,431 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
[2024-11-08 17:13:58,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:58,503 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:58,503 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:58,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594497655]
[2024-11-08 17:13:58,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594497655] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:58,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:58,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 17:13:58,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24555524]
[2024-11-08 17:13:58,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:58,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 17:13:58,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:58,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 17:13:58,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:13:58,506 INFO L87 Difference]: Start difference. First operand 300 states and 357 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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)
[2024-11-08 17:13:59,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:59,128 INFO L93 Difference]: Finished difference Result 318 states and 364 transitions.
[2024-11-08 17:13:59,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 17:13:59,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 24
[2024-11-08 17:13:59,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:59,131 INFO L225 Difference]: With dead ends: 318
[2024-11-08 17:13:59,131 INFO L226 Difference]: Without dead ends: 318
[2024-11-08 17:13:59,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110
[2024-11-08 17:13:59,132 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 87 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:59,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1504 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 17:13:59,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states.
[2024-11-08 17:13:59,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 286.
[2024-11-08 17:13:59,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 209 states have (on average 1.5980861244019138) internal successors, (334), 285 states have internal predecessors, (334), 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)
[2024-11-08 17:13:59,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 334 transitions.
[2024-11-08 17:13:59,141 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 334 transitions. Word has length 24
[2024-11-08 17:13:59,142 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:59,142 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 334 transitions.
[2024-11-08 17:13:59,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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)
[2024-11-08 17:13:59,142 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 334 transitions.
[2024-11-08 17:13:59,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-08 17:13:59,143 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:59,143 INFO L215 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]
[2024-11-08 17:13:59,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0
[2024-11-08 17:13:59,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:59,348 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:59,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:59,348 INFO L85 PathProgramCache]: Analyzing trace with hash 647657445, now seen corresponding path program 1 times
[2024-11-08 17:13:59,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:59,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [144862321]
[2024-11-08 17:13:59,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:59,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:59,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:59,351 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:59,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2024-11-08 17:13:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:59,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:59,519 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:59,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:59,568 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:13:59,568 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:13:59,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144862321]
[2024-11-08 17:13:59,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144862321] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:59,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:59,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:13:59,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291891524]
[2024-11-08 17:13:59,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:59,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:13:59,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:13:59,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:13:59,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:13:59,571 INFO L87 Difference]: Start difference. First operand 286 states and 334 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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)
[2024-11-08 17:13:59,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:59,782 INFO L93 Difference]: Finished difference Result 294 states and 341 transitions.
[2024-11-08 17:13:59,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:13:59,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 24
[2024-11-08 17:13:59,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:13:59,785 INFO L225 Difference]: With dead ends: 294
[2024-11-08 17:13:59,785 INFO L226 Difference]: Without dead ends: 294
[2024-11-08 17:13:59,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:13:59,786 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 69 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:13:59,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1022 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:13:59,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states.
[2024-11-08 17:13:59,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 286.
[2024-11-08 17:13:59,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 209 states have (on average 1.5933014354066986) internal successors, (333), 285 states have internal predecessors, (333), 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)
[2024-11-08 17:13:59,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 333 transitions.
[2024-11-08 17:13:59,795 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 333 transitions. Word has length 24
[2024-11-08 17:13:59,795 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:13:59,795 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 333 transitions.
[2024-11-08 17:13:59,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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)
[2024-11-08 17:13:59,796 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 333 transitions.
[2024-11-08 17:13:59,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-08 17:13:59,797 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:13:59,797 INFO L215 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]
[2024-11-08 17:13:59,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0
[2024-11-08 17:13:59,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:59,998 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr151ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:13:59,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:59,998 INFO L85 PathProgramCache]: Analyzing trace with hash 633277862, now seen corresponding path program 1 times
[2024-11-08 17:13:59,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:13:59,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43250878]
[2024-11-08 17:13:59,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:59,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:59,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:14:00,002 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:14:00,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2024-11-08 17:14:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:14:00,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-08 17:14:00,174 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:14:00,267 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#iter~0#1.base_55| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#iter~0#1.base_55|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#iter~0#1.base_55| (_ bv0 1))))) is different from true
[2024-11-08 17:14:00,320 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#iter~0#1.base_55| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#iter~0#1.base_55| (_ bv0 1)))) (and (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#iter~1#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#iter~0#1.base_55|)) (= |c_#valid| (store .cse0 |c_ULTIMATE.start_main_~#iter~1#1.base| (select |c_#valid| |c_ULTIMATE.start_main_~#iter~1#1.base|)))))) is different from true
[2024-11-08 17:14:00,473 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#iter~1#1.base_55| (_ BitVec 32)) (|v_ULTIMATE.start_main_~#iter~0#1.base_55| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#iter~0#1.base_55| (_ bv0 1)))) (and (= (_ bv0 1) (select .cse0 |v_ULTIMATE.start_main_~#iter~1#1.base_55|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#iter~0#1.base_55|)) (= (store .cse0 |v_ULTIMATE.start_main_~#iter~1#1.base_55| (_ bv0 1)) |c_#valid|)))) is different from true
[2024-11-08 17:14:00,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:14:00,515 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:14:00,515 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:14:00,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43250878]
[2024-11-08 17:14:00,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43250878] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:14:00,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:14:00,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 17:14:00,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095886202]
[2024-11-08 17:14:00,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:14:00,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 17:14:00,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:14:00,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 17:14:00,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=10, Unknown=3, NotChecked=18, Total=42
[2024-11-08 17:14:00,518 INFO L87 Difference]: Start difference. First operand 286 states and 333 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 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)
[2024-11-08 17:14:01,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:14:01,513 INFO L93 Difference]: Finished difference Result 291 states and 338 transitions.
[2024-11-08 17:14:01,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 17:14:01,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 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
[2024-11-08 17:14:01,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:14:01,515 INFO L225 Difference]: With dead ends: 291
[2024-11-08 17:14:01,515 INFO L226 Difference]: Without dead ends: 287
[2024-11-08 17:14:01,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=15, Unknown=3, NotChecked=24, Total=56
[2024-11-08 17:14:01,517 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 3 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 897 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-08 17:14:01,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 565 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 249 Invalid, 0 Unknown, 897 Unchecked, 0.9s Time]
[2024-11-08 17:14:01,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states.
[2024-11-08 17:14:01,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287.
[2024-11-08 17:14:01,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 210 states have (on average 1.5904761904761904) internal successors, (334), 286 states have internal predecessors, (334), 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)
[2024-11-08 17:14:01,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 334 transitions.
[2024-11-08 17:14:01,526 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 334 transitions. Word has length 26
[2024-11-08 17:14:01,526 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:14:01,526 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 334 transitions.
[2024-11-08 17:14:01,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 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)
[2024-11-08 17:14:01,527 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 334 transitions.
[2024-11-08 17:14:01,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-08 17:14:01,527 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:14:01,528 INFO L215 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]
[2024-11-08 17:14:01,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0
[2024-11-08 17:14:01,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:01,729 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:14:01,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:14:01,729 INFO L85 PathProgramCache]: Analyzing trace with hash 543755136, now seen corresponding path program 1 times
[2024-11-08 17:14:01,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:14:01,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1379819539]
[2024-11-08 17:14:01,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:14:01,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:01,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:14:01,733 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:14:01,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2024-11-08 17:14:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:14:01,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-08 17:14:01,935 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:14:01,940 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
[2024-11-08 17:14:02,007 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size
[2024-11-08 17:14:02,008 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
[2024-11-08 17:14:02,067 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
[2024-11-08 17:14:02,106 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 39 treesize of output 19
[2024-11-08 17:14:02,226 INFO L349 Elim1Store]: treesize reduction 36, result has 35.7 percent of original size
[2024-11-08 17:14:02,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 28
[2024-11-08 17:14:02,339 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 35 treesize of output 19
[2024-11-08 17:14:02,386 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 19 treesize of output 1
[2024-11-08 17:14:02,477 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 33 treesize of output 15
[2024-11-08 17:14:02,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:14:02,538 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:14:02,538 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:14:02,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379819539]
[2024-11-08 17:14:02,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379819539] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:14:02,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:14:02,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-11-08 17:14:02,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055595522]
[2024-11-08 17:14:02,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:14:02,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-08 17:14:02,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:14:02,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-08 17:14:02,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-11-08 17:14:02,542 INFO L87 Difference]: Start difference. First operand 287 states and 334 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)
[2024-11-08 17:14:05,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:14:05,933 INFO L93 Difference]: Finished difference Result 290 states and 337 transitions.
[2024-11-08 17:14:05,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-08 17:14:05,934 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
[2024-11-08 17:14:05,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:14:05,935 INFO L225 Difference]: With dead ends: 290
[2024-11-08 17:14:05,936 INFO L226 Difference]: Without dead ends: 290
[2024-11-08 17:14:05,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306
[2024-11-08 17:14:05,937 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 81 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:14:05,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1364 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2024-11-08 17:14:05,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states.
[2024-11-08 17:14:05,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 286.
[2024-11-08 17:14:05,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 210 states have (on average 1.5857142857142856) internal successors, (333), 285 states have internal predecessors, (333), 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)
[2024-11-08 17:14:05,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 333 transitions.
[2024-11-08 17:14:05,972 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 333 transitions. Word has length 26
[2024-11-08 17:14:05,973 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:14:05,973 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 333 transitions.
[2024-11-08 17:14:05,974 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)
[2024-11-08 17:14:05,974 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 333 transitions.
[2024-11-08 17:14:05,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-08 17:14:05,974 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:14:05,975 INFO L215 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]
[2024-11-08 17:14:06,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0
[2024-11-08 17:14:06,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:06,176 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:14:06,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:14:06,176 INFO L85 PathProgramCache]: Analyzing trace with hash 543755137, now seen corresponding path program 1 times
[2024-11-08 17:14:06,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:14:06,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097689379]
[2024-11-08 17:14:06,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:14:06,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:06,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:14:06,178 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:14:06,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2024-11-08 17:14:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:14:06,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 32 conjuncts are in the unsatisfiable core
[2024-11-08 17:14:06,377 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:14:06,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-08 17:14:06,502 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-08 17:14:06,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-11-08 17:14:06,528 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-08 17:14:06,528 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
[2024-11-08 17:14:06,576 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
[2024-11-08 17:14:06,590 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
[2024-11-08 17:14:06,626 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 37 treesize of output 17
[2024-11-08 17:14:06,640 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
[2024-11-08 17:14:06,734 INFO L349 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size
[2024-11-08 17:14:06,735 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 1 case distinctions, treesize of input 16 treesize of output 18
[2024-11-08 17:14:06,849 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
[2024-11-08 17:14:06,856 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
[2024-11-08 17:14:06,909 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 13 treesize of output 9
[2024-11-08 17:14:06,922 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 19 treesize of output 1
[2024-11-08 17:14:07,025 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 21 treesize of output 9
[2024-11-08 17:14:07,031 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 9 treesize of output 3
[2024-11-08 17:14:07,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:14:07,154 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:14:07,154 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:14:07,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097689379]
[2024-11-08 17:14:07,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097689379] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:14:07,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:14:07,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-11-08 17:14:07,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011109868]
[2024-11-08 17:14:07,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:14:07,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 17:14:07,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:14:07,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 17:14:07,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132
[2024-11-08 17:14:07,159 INFO L87 Difference]: Start difference. First operand 286 states and 333 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 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)
[2024-11-08 17:14:10,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:14:10,911 INFO L93 Difference]: Finished difference Result 289 states and 336 transitions.
[2024-11-08 17:14:10,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-08 17:14:10,912 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 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
[2024-11-08 17:14:10,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:14:10,913 INFO L225 Difference]: With dead ends: 289
[2024-11-08 17:14:10,913 INFO L226 Difference]: Without dead ends: 289
[2024-11-08 17:14:10,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380
[2024-11-08 17:14:10,915 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 81 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:14:10,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1431 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2024-11-08 17:14:10,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states.
[2024-11-08 17:14:10,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 285.
[2024-11-08 17:14:10,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 210 states have (on average 1.5809523809523809) internal successors, (332), 284 states have internal predecessors, (332), 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)
[2024-11-08 17:14:10,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 332 transitions.
[2024-11-08 17:14:10,922 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 332 transitions. Word has length 26
[2024-11-08 17:14:10,922 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:14:10,922 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 332 transitions.
[2024-11-08 17:14:10,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 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)
[2024-11-08 17:14:10,923 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 332 transitions.
[2024-11-08 17:14:10,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2024-11-08 17:14:10,923 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:14:10,924 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:14:10,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0
[2024-11-08 17:14:11,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:11,124 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr151ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:14:11,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:14:11,125 INFO L85 PathProgramCache]: Analyzing trace with hash 737211424, now seen corresponding path program 1 times
[2024-11-08 17:14:11,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:14:11,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [354709544]
[2024-11-08 17:14:11,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:14:11,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:11,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:14:11,127 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:14:11,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2024-11-08 17:14:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:14:11,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 17:14:11,274 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:14:11,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:14:11,291 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:14:11,292 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:14:11,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354709544]
[2024-11-08 17:14:11,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354709544] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:14:11,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:14:11,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:14:11,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881856992]
[2024-11-08 17:14:11,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:14:11,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:14:11,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:14:11,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:14:11,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:14:11,294 INFO L87 Difference]: Start difference. First operand 285 states and 332 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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)
[2024-11-08 17:14:11,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:14:11,324 INFO L93 Difference]: Finished difference Result 266 states and 301 transitions.
[2024-11-08 17:14:11,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:14:11,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27
[2024-11-08 17:14:11,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:14:11,326 INFO L225 Difference]: With dead ends: 266
[2024-11-08 17:14:11,326 INFO L226 Difference]: Without dead ends: 248
[2024-11-08 17:14:11,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:14:11,327 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 0 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:14:11,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 526 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:14:11,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states.
[2024-11-08 17:14:11,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248.
[2024-11-08 17:14:11,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 173 states have (on average 1.6358381502890174) internal successors, (283), 247 states have internal predecessors, (283), 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)
[2024-11-08 17:14:11,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 283 transitions.
[2024-11-08 17:14:11,353 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 283 transitions. Word has length 27
[2024-11-08 17:14:11,353 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:14:11,355 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 283 transitions.
[2024-11-08 17:14:11,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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)
[2024-11-08 17:14:11,356 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 283 transitions.
[2024-11-08 17:14:11,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2024-11-08 17:14:11,357 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:14:11,357 INFO L215 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]
[2024-11-08 17:14:11,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0
[2024-11-08 17:14:11,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:11,557 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:14:11,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:14:11,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1396315699, now seen corresponding path program 1 times
[2024-11-08 17:14:11,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:14:11,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [449884902]
[2024-11-08 17:14:11,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:14:11,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:11,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:14:11,561 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:14:11,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2024-11-08 17:14:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:14:11,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-08 17:14:11,742 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:14:11,793 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
[2024-11-08 17:14:11,818 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 28 treesize of output 12
[2024-11-08 17:14:11,833 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 16 treesize of output 8
[2024-11-08 17:14:11,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:14:11,848 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:14:11,848 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:14:11,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449884902]
[2024-11-08 17:14:11,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449884902] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:14:11,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:14:11,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 17:14:11,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867844938]
[2024-11-08 17:14:11,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:14:11,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 17:14:11,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:14:11,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 17:14:11,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:14:11,850 INFO L87 Difference]: Start difference. First operand 248 states and 283 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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)
[2024-11-08 17:14:12,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:14:12,384 INFO L93 Difference]: Finished difference Result 276 states and 314 transitions.
[2024-11-08 17:14:12,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 17:14:12,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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 28
[2024-11-08 17:14:12,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:14:12,386 INFO L225 Difference]: With dead ends: 276
[2024-11-08 17:14:12,386 INFO L226 Difference]: Without dead ends: 276
[2024-11-08 17:14:12,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132
[2024-11-08 17:14:12,387 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 120 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:14:12,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1441 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 17:14:12,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states.
[2024-11-08 17:14:12,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 248.
[2024-11-08 17:14:12,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 173 states have (on average 1.630057803468208) internal successors, (282), 247 states have internal predecessors, (282), 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)
[2024-11-08 17:14:12,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 282 transitions.
[2024-11-08 17:14:12,394 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 282 transitions. Word has length 28
[2024-11-08 17:14:12,394 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:14:12,394 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 282 transitions.
[2024-11-08 17:14:12,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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)
[2024-11-08 17:14:12,395 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 282 transitions.
[2024-11-08 17:14:12,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2024-11-08 17:14:12,396 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:14:12,396 INFO L215 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]
[2024-11-08 17:14:12,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0
[2024-11-08 17:14:12,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:12,596 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:14:12,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:14:12,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1712067018, now seen corresponding path program 1 times
[2024-11-08 17:14:12,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:14:12,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261192131]
[2024-11-08 17:14:12,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:14:12,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:12,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:14:12,600 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:14:12,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2024-11-08 17:14:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:14:12,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-08 17:14:12,781 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:14:12,794 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
[2024-11-08 17:14:12,830 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 31 treesize of output 15
[2024-11-08 17:14:12,863 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 31 treesize of output 15
[2024-11-08 17:14:12,876 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
[2024-11-08 17:14:12,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-08 17:14:12,890 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:14:12,890 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:14:12,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261192131]
[2024-11-08 17:14:12,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261192131] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:14:12,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:14:12,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:14:12,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369839787]
[2024-11-08 17:14:12,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:14:12,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:14:12,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:14:12,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:14:12,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:14:12,892 INFO L87 Difference]: Start difference. First operand 248 states and 282 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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)
[2024-11-08 17:14:13,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:14:13,704 INFO L93 Difference]: Finished difference Result 267 states and 305 transitions.
[2024-11-08 17:14:13,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:14:13,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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
[2024-11-08 17:14:13,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:14:13,705 INFO L225 Difference]: With dead ends: 267
[2024-11-08 17:14:13,705 INFO L226 Difference]: Without dead ends: 267
[2024-11-08 17:14:13,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:14:13,706 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 24 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 17:14:13,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 767 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 17:14:13,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states.
[2024-11-08 17:14:13,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 247.
[2024-11-08 17:14:13,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 173 states have (on average 1.6242774566473988) internal successors, (281), 246 states have internal predecessors, (281), 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)
[2024-11-08 17:14:13,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 281 transitions.
[2024-11-08 17:14:13,712 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 281 transitions. Word has length 30
[2024-11-08 17:14:13,712 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:14:13,713 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 281 transitions.
[2024-11-08 17:14:13,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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)
[2024-11-08 17:14:13,713 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 281 transitions.
[2024-11-08 17:14:13,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2024-11-08 17:14:13,713 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:14:13,714 INFO L215 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]
[2024-11-08 17:14:13,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0
[2024-11-08 17:14:13,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:13,914 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:14:13,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:14:13,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1712067019, now seen corresponding path program 1 times
[2024-11-08 17:14:13,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:14:13,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1449824846]
[2024-11-08 17:14:13,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:14:13,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:13,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:14:13,917 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:14:13,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process
[2024-11-08 17:14:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:14:14,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-11-08 17:14:14,104 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:14:14,111 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
[2024-11-08 17:14:14,224 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-08 17:14:14,224 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 13 treesize of output 13
[2024-11-08 17:14:14,233 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
[2024-11-08 17:14:14,263 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 11 treesize of output 7
[2024-11-08 17:14:14,275 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 11 treesize of output 7
[2024-11-08 17:14:14,383 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
[2024-11-08 17:14:14,391 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 37 treesize of output 17
[2024-11-08 17:14:14,473 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 0 case distinctions, treesize of input 37 treesize of output 17
[2024-11-08 17:14:14,485 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
[2024-11-08 17:14:14,510 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
[2024-11-08 17:14:14,517 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
[2024-11-08 17:14:14,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:14:14,538 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:14:14,538 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:14:14,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449824846]
[2024-11-08 17:14:14,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449824846] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:14:14,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:14:14,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-08 17:14:14,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321368008]
[2024-11-08 17:14:14,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:14:14,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-08 17:14:14,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:14:14,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-08 17:14:14,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-11-08 17:14:14,540 INFO L87 Difference]: Start difference. First operand 247 states and 281 transitions. Second operand has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 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)
[2024-11-08 17:14:17,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:14:17,172 INFO L93 Difference]: Finished difference Result 274 states and 312 transitions.
[2024-11-08 17:14:17,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 17:14:17,173 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 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
[2024-11-08 17:14:17,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:14:17,175 INFO L225 Difference]: With dead ends: 274
[2024-11-08 17:14:17,175 INFO L226 Difference]: Without dead ends: 274
[2024-11-08 17:14:17,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182
[2024-11-08 17:14:17,176 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 106 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2024-11-08 17:14:17,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1166 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2024-11-08 17:14:17,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states.
[2024-11-08 17:14:17,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 246.
[2024-11-08 17:14:17,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 173 states have (on average 1.6184971098265897) internal successors, (280), 245 states have internal predecessors, (280), 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)
[2024-11-08 17:14:17,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 280 transitions.
[2024-11-08 17:14:17,182 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 280 transitions. Word has length 30
[2024-11-08 17:14:17,182 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:14:17,182 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 280 transitions.
[2024-11-08 17:14:17,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 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)
[2024-11-08 17:14:17,183 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 280 transitions.
[2024-11-08 17:14:17,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2024-11-08 17:14:17,183 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:14:17,184 INFO L215 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]
[2024-11-08 17:14:17,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0
[2024-11-08 17:14:17,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:17,388 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:14:17,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:14:17,388 INFO L85 PathProgramCache]: Analyzing trace with hash 2060807890, now seen corresponding path program 1 times
[2024-11-08 17:14:17,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:14:17,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241179096]
[2024-11-08 17:14:17,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:14:17,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:17,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:14:17,391 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:14:17,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process
[2024-11-08 17:14:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:14:17,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 31 conjuncts are in the unsatisfiable core
[2024-11-08 17:14:17,569 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:14:17,656 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
[2024-11-08 17:14:17,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:14:17,773 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
[2024-11-08 17:14:17,783 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
[2024-11-08 17:14:17,847 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 42 treesize of output 22
[2024-11-08 17:14:17,861 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
[2024-11-08 17:14:17,948 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
[2024-11-08 17:14:17,957 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 42 treesize of output 22
[2024-11-08 17:14:17,988 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 30 treesize of output 18
[2024-11-08 17:14:18,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:14:18,057 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:14:18,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:14:18,450 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:14:18,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241179096]
[2024-11-08 17:14:18,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241179096] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:14:18,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 17:14:18,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 15
[2024-11-08 17:14:18,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322083590]
[2024-11-08 17:14:18,451 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:14:18,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-08 17:14:18,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:14:18,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-08 17:14:18,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210
[2024-11-08 17:14:18,452 INFO L87 Difference]: Start difference. First operand 246 states and 280 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:14:20,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:14:20,166 INFO L93 Difference]: Finished difference Result 326 states and 371 transitions.
[2024-11-08 17:14:20,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-08 17:14:20,167 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34
[2024-11-08 17:14:20,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:14:20,168 INFO L225 Difference]: With dead ends: 326
[2024-11-08 17:14:20,168 INFO L226 Difference]: Without dead ends: 326
[2024-11-08 17:14:20,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420
[2024-11-08 17:14:20,169 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 175 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:14:20,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2022 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-08 17:14:20,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states.
[2024-11-08 17:14:20,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 274.
[2024-11-08 17:14:20,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 201 states have (on average 1.5422885572139304) internal successors, (310), 273 states have internal predecessors, (310), 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)
[2024-11-08 17:14:20,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 310 transitions.
[2024-11-08 17:14:20,175 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 310 transitions. Word has length 34
[2024-11-08 17:14:20,175 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:14:20,175 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 310 transitions.
[2024-11-08 17:14:20,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:14:20,176 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 310 transitions.
[2024-11-08 17:14:20,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2024-11-08 17:14:20,176 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:14:20,176 INFO L215 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]
[2024-11-08 17:14:20,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0
[2024-11-08 17:14:20,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:20,377 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:14:20,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:14:20,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1111242664, now seen corresponding path program 1 times
[2024-11-08 17:14:20,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:14:20,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1483104912]
[2024-11-08 17:14:20,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:14:20,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:20,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:14:20,382 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:14:20,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process
[2024-11-08 17:14:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:14:20,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-08 17:14:20,593 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:14:20,622 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
[2024-11-08 17:14:20,635 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 28 treesize of output 12
[2024-11-08 17:14:20,689 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 16 treesize of output 8
[2024-11-08 17:14:20,719 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 19 treesize of output 1
[2024-11-08 17:14:20,760 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 20 treesize of output 8
[2024-11-08 17:14:20,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:14:20,826 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:14:20,826 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:14:20,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483104912]
[2024-11-08 17:14:20,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483104912] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:14:20,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:14:20,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-11-08 17:14:20,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978676563]
[2024-11-08 17:14:20,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:14:20,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-08 17:14:20,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:14:20,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-08 17:14:20,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110
[2024-11-08 17:14:20,829 INFO L87 Difference]: Start difference. First operand 274 states and 310 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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)
[2024-11-08 17:14:22,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:14:22,034 INFO L93 Difference]: Finished difference Result 276 states and 312 transitions.
[2024-11-08 17:14:22,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-08 17:14:22,035 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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 34
[2024-11-08 17:14:22,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:14:22,036 INFO L225 Difference]: With dead ends: 276
[2024-11-08 17:14:22,036 INFO L226 Difference]: Without dead ends: 276
[2024-11-08 17:14:22,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342
[2024-11-08 17:14:22,037 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 74 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:14:22,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 2260 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-08 17:14:22,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states.
[2024-11-08 17:14:22,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276.
[2024-11-08 17:14:22,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 203 states have (on average 1.5369458128078817) internal successors, (312), 275 states have internal predecessors, (312), 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)
[2024-11-08 17:14:22,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 312 transitions.
[2024-11-08 17:14:22,050 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 312 transitions. Word has length 34
[2024-11-08 17:14:22,050 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:14:22,050 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 312 transitions.
[2024-11-08 17:14:22,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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)
[2024-11-08 17:14:22,051 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 312 transitions.
[2024-11-08 17:14:22,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2024-11-08 17:14:22,052 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:14:22,052 INFO L215 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]
[2024-11-08 17:14:22,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0
[2024-11-08 17:14:22,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:22,257 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 149 more)] ===
[2024-11-08 17:14:22,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:14:22,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1186879788, now seen corresponding path program 1 times
[2024-11-08 17:14:22,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:14:22,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1200189026]
[2024-11-08 17:14:22,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:14:22,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:14:22,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:14:22,259 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:14:22,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df13d943-fc3d-4d3c-962c-76a2bb0dbcd9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process
[2024-11-08 17:14:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:14:22,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 38 conjuncts are in the unsatisfiable core
[2024-11-08 17:14:22,456 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:14:22,461 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
[2024-11-08 17:14:22,495 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
[2024-11-08 17:14:22,510 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
[2024-11-08 17:14:22,576 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
[2024-11-08 17:14:22,587 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
[2024-11-08 17:14:22,613 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-08 17:14:22,614 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
[2024-11-08 17:14:22,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15
[2024-11-08 17:14:22,695 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 22
[2024-11-08 17:14:22,784 INFO L349 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size
[2024-11-08 17:14:22,785 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 2 case distinctions, treesize of input 50 treesize of output 32
[2024-11-08 17:14:22,806 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 38 treesize of output 25
[2024-11-08 17:14:23,091 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 13 treesize of output 9
[2024-11-08 17:14:23,101 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 17 treesize of output 13
[2024-11-08 17:14:23,315 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 23 treesize of output 11
[2024-11-08 17:14:23,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:14:23,553 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:14:23,553 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:14:23,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200189026]
[2024-11-08 17:14:23,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200189026] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:14:23,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:14:23,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2024-11-08 17:14:23,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126262289]
[2024-11-08 17:14:23,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:14:23,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-08 17:14:23,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:14:23,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-08 17:14:23,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156
[2024-11-08 17:14:23,556 INFO L87 Difference]: Start difference. First operand 276 states and 312 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 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)