./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0217_1.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_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/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_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0217_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/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_670ad50a-f9c0-4d93-bff2-286107ac1a35/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 e4aac8fd1b71e0bd84f9ab8e5c238dc6bf3a295fcb9cebe504ba6d0c9a6a7b7a
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:49:36,672 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:49:36,752 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-11-08 17:49:36,762 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:49:36,762 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:49:36,790 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:49:36,790 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:49:36,791 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:49:36,792 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:49:36,792 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 17:49:36,793 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:49:36,793 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:49:36,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:49:36,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 17:49:36,795 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 17:49:36,796 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:49:36,796 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 17:49:36,797 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 17:49:36,797 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 17:49:36,798 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 17:49:36,798 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-08 17:49:36,799 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-08 17:49:36,799 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-08 17:49:36,800 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:49:36,800 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-08 17:49:36,801 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 17:49:36,801 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 17:49:36,802 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 17:49:36,802 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 17:49:36,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:49:36,803 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 17:49:36,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:49:36,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 17:49:36,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:49:36,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:49:36,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:49:36,806 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 17:49:36,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 17:49:36,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:49:36,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:49:36,807 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:49:36,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:49:36,808 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_670ad50a-f9c0-4d93-bff2-286107ac1a35/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4aac8fd1b71e0bd84f9ab8e5c238dc6bf3a295fcb9cebe504ba6d0c9a6a7b7a
[2024-11-08 17:49:37,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:49:37,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:49:37,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:49:37,223 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 17:49:37,223 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 17:49:37,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/list-ext-properties/test-0217_1.i
Unable to find full path for "g++"
[2024-11-08 17:49:39,779 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:49:40,174 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 17:49:40,175 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/sv-benchmarks/c/list-ext-properties/test-0217_1.i
[2024-11-08 17:49:40,209 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/data/977c5849e/f9c1c9d4fe8e4526bd9aa6e346c1ffdd/FLAG546e6fa20
[2024-11-08 17:49:40,233 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/data/977c5849e/f9c1c9d4fe8e4526bd9aa6e346c1ffdd
[2024-11-08 17:49:40,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:49:40,239 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:49:40,240 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:49:40,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:49:40,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:49:40,252 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:49:40" (1/1) ...
[2024-11-08 17:49:40,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe0d02d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:49:40, skipping insertion in model container
[2024-11-08 17:49:40,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:49:40" (1/1) ...
[2024-11-08 17:49:40,340 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:49:40,998 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:49:41,020 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 17:49:41,099 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:49:41,147 INFO L204 MainTranslator]: Completed translation
[2024-11-08 17:49:41,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:49:41 WrapperNode
[2024-11-08 17:49:41,148 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:49:41,150 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:49:41,150 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:49:41,150 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:49:41,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:49:41" (1/1) ...
[2024-11-08 17:49:41,188 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:49:41" (1/1) ...
[2024-11-08 17:49:41,236 INFO L138 Inliner]: procedures = 181, calls = 47, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 249
[2024-11-08 17:49:41,236 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:49:41,237 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:49:41,238 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:49:41,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:49:41,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:49:41" (1/1) ...
[2024-11-08 17:49:41,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:49:41" (1/1) ...
[2024-11-08 17:49:41,270 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:49:41" (1/1) ...
[2024-11-08 17:49:41,345 INFO L175 MemorySlicer]: Split 32 memory accesses to 2 slices as follows [2, 30]. 94 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2]. The 11 writes are split as follows [0, 11].
[2024-11-08 17:49:41,349 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:49:41" (1/1) ...
[2024-11-08 17:49:41,350 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:49:41" (1/1) ...
[2024-11-08 17:49:41,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:49:41" (1/1) ...
[2024-11-08 17:49:41,392 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:49:41" (1/1) ...
[2024-11-08 17:49:41,398 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:49:41" (1/1) ...
[2024-11-08 17:49:41,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:49:41" (1/1) ...
[2024-11-08 17:49:41,406 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:49:41,407 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:49:41,407 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:49:41,411 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:49:41,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:49:41" (1/1) ...
[2024-11-08 17:49:41,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:49:41,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:49:41,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:49:41,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:49:41,499 INFO L130 BoogieDeclarations]: Found specification of procedure rand_end_point
[2024-11-08 17:49:41,499 INFO L138 BoogieDeclarations]: Found implementation of procedure rand_end_point
[2024-11-08 17:49:41,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-08 17:49:41,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-08 17:49:41,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-08 17:49:41,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:49:41,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-08 17:49:41,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-08 17:49:41,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-08 17:49:41,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-08 17:49:41,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-08 17:49:41,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-08 17:49:41,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-08 17:49:41,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 17:49:41,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-08 17:49:41,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:49:41,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:49:41,684 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 17:49:41,687 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:49:42,555 INFO L? ?]: Removed 187 outVars from TransFormulas that were not future-live.
[2024-11-08 17:49:42,555 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 17:49:42,584 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:49:42,584 INFO L316 CfgBuilder]: Removed 5 assume(true) statements.
[2024-11-08 17:49:42,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:49:42 BoogieIcfgContainer
[2024-11-08 17:49:42,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:49:42,589 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:49:42,590 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:49:42,595 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:49:42,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:49:40" (1/3) ...
[2024-11-08 17:49:42,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255a5495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:49:42, skipping insertion in model container
[2024-11-08 17:49:42,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:49:41" (2/3) ...
[2024-11-08 17:49:42,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255a5495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:49:42, skipping insertion in model container
[2024-11-08 17:49:42,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:49:42" (3/3) ...
[2024-11-08 17:49:42,600 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0217_1.i
[2024-11-08 17:49:42,618 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:49:42,619 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 67 error locations.
[2024-11-08 17:49:42,676 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:49:42,688 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;@68a4fc39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:49:42,688 INFO L334 AbstractCegarLoop]: Starting to check reachability of 67 error locations.
[2024-11-08 17:49:42,698 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 100 states have (on average 1.96) internal successors, (196), 167 states have internal predecessors, (196), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:49:42,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-08 17:49:42,712 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:42,712 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-08 17:49:42,713 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:42,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:42,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1045550986, now seen corresponding path program 1 times
[2024-11-08 17:49:42,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:42,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447155389]
[2024-11-08 17:49:42,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:42,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:42,966 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 17:49:42,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:42,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447155389]
[2024-11-08 17:49:42,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447155389] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:42,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:42,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:49:42,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653883438]
[2024-11-08 17:49:42,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:42,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 17:49:42,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:43,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 17:49:43,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:49:43,031 INFO L87 Difference]: Start difference. First operand has 171 states, 100 states have (on average 1.96) internal successors, (196), 167 states have internal predecessors, (196), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 17:49:43,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:43,083 INFO L93 Difference]: Finished difference Result 171 states and 194 transitions.
[2024-11-08 17:49:43,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 17:49:43,086 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 17:49:43,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:43,099 INFO L225 Difference]: With dead ends: 171
[2024-11-08 17:49:43,100 INFO L226 Difference]: Without dead ends: 169
[2024-11-08 17:49:43,102 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 17:49:43,109 INFO L432 NwaCegarLoop]: 194 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, 194 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 17:49:43,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:49:43,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states.
[2024-11-08 17:49:43,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169.
[2024-11-08 17:49:43,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 99 states have (on average 1.898989898989899) internal successors, (188), 165 states have internal predecessors, (188), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:49:43,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 192 transitions.
[2024-11-08 17:49:43,196 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 192 transitions. Word has length 6
[2024-11-08 17:49:43,196 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:43,196 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 192 transitions.
[2024-11-08 17:49:43,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 17:49:43,197 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 192 transitions.
[2024-11-08 17:49:43,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 17:49:43,198 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:43,198 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:49:43,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 17:49:43,199 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:43,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:43,200 INFO L85 PathProgramCache]: Analyzing trace with hash 564788077, now seen corresponding path program 1 times
[2024-11-08 17:49:43,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:43,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941331692]
[2024-11-08 17:49:43,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:43,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:43,422 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 17:49:43,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:43,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941331692]
[2024-11-08 17:49:43,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941331692] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:43,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:43,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:49:43,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838665292]
[2024-11-08 17:49:43,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:43,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:49:43,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:43,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:49:43,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:49:43,428 INFO L87 Difference]: Start difference. First operand 169 states and 192 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 17:49:43,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:43,527 INFO L93 Difference]: Finished difference Result 333 states and 379 transitions.
[2024-11-08 17:49:43,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:49:43,528 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 17:49:43,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:43,531 INFO L225 Difference]: With dead ends: 333
[2024-11-08 17:49:43,531 INFO L226 Difference]: Without dead ends: 333
[2024-11-08 17:49:43,532 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 17:49:43,533 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 182 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:43,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 701 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:49:43,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states.
[2024-11-08 17:49:43,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 171.
[2024-11-08 17:49:43,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 101 states have (on average 1.881188118811881) internal successors, (190), 167 states have internal predecessors, (190), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:49:43,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 194 transitions.
[2024-11-08 17:49:43,573 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 194 transitions. Word has length 8
[2024-11-08 17:49:43,573 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:43,573 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 194 transitions.
[2024-11-08 17:49:43,578 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 17:49:43,578 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 194 transitions.
[2024-11-08 17:49:43,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 17:49:43,578 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:43,579 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:49:43,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 17:49:43,579 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:43,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:43,581 INFO L85 PathProgramCache]: Analyzing trace with hash 562941035, now seen corresponding path program 1 times
[2024-11-08 17:49:43,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:43,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774764217]
[2024-11-08 17:49:43,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:43,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:43,770 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 17:49:43,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:43,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774764217]
[2024-11-08 17:49:43,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774764217] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:43,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:43,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-08 17:49:43,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114799854]
[2024-11-08 17:49:43,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:43,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:49:43,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:43,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:49:43,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:49:43,779 INFO L87 Difference]: Start difference. First operand 171 states and 194 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 17:49:44,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:44,238 INFO L93 Difference]: Finished difference Result 331 states and 376 transitions.
[2024-11-08 17:49:44,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:49:44,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 17:49:44,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:44,242 INFO L225 Difference]: With dead ends: 331
[2024-11-08 17:49:44,246 INFO L226 Difference]: Without dead ends: 331
[2024-11-08 17:49:44,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 17:49:44,248 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 172 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:44,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 251 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 17:49:44,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states.
[2024-11-08 17:49:44,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 238.
[2024-11-08 17:49:44,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 165 states have (on average 1.8666666666666667) internal successors, (308), 231 states have internal predecessors, (308), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 17:49:44,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 316 transitions.
[2024-11-08 17:49:44,271 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 316 transitions. Word has length 8
[2024-11-08 17:49:44,272 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:44,272 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 316 transitions.
[2024-11-08 17:49:44,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 17:49:44,273 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 316 transitions.
[2024-11-08 17:49:44,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 17:49:44,273 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:44,273 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:49:44,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 17:49:44,274 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:44,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:44,275 INFO L85 PathProgramCache]: Analyzing trace with hash 562941036, now seen corresponding path program 1 times
[2024-11-08 17:49:44,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:44,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985970946]
[2024-11-08 17:49:44,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:44,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:44,504 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 17:49:44,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:44,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985970946]
[2024-11-08 17:49:44,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985970946] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:44,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:44,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:49:44,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130730246]
[2024-11-08 17:49:44,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:44,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:49:44,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:44,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:49:44,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:49:44,508 INFO L87 Difference]: Start difference. First operand 238 states and 316 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 17:49:44,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:44,805 INFO L93 Difference]: Finished difference Result 371 states and 479 transitions.
[2024-11-08 17:49:44,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:49:44,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 17:49:44,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:44,810 INFO L225 Difference]: With dead ends: 371
[2024-11-08 17:49:44,811 INFO L226 Difference]: Without dead ends: 371
[2024-11-08 17:49:44,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:49:44,813 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 110 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:44,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 424 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:49:44,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states.
[2024-11-08 17:49:44,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 319.
[2024-11-08 17:49:44,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 240 states have (on average 1.8291666666666666) internal successors, (439), 308 states have internal predecessors, (439), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-08 17:49:44,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 455 transitions.
[2024-11-08 17:49:44,845 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 455 transitions. Word has length 8
[2024-11-08 17:49:44,845 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:44,845 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 455 transitions.
[2024-11-08 17:49:44,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 17:49:44,846 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 455 transitions.
[2024-11-08 17:49:44,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 17:49:44,847 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:44,847 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:49:44,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 17:49:44,847 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:44,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:44,848 INFO L85 PathProgramCache]: Analyzing trace with hash 562941098, now seen corresponding path program 1 times
[2024-11-08 17:49:44,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:44,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888163978]
[2024-11-08 17:49:44,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:44,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:45,044 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 17:49:45,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:45,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888163978]
[2024-11-08 17:49:45,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888163978] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:45,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:45,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:49:45,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017917592]
[2024-11-08 17:49:45,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:45,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:49:45,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:45,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:49:45,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:49:45,050 INFO L87 Difference]: Start difference. First operand 319 states and 455 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 17:49:45,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:45,268 INFO L93 Difference]: Finished difference Result 370 states and 477 transitions.
[2024-11-08 17:49:45,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:49:45,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 17:49:45,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:45,271 INFO L225 Difference]: With dead ends: 370
[2024-11-08 17:49:45,271 INFO L226 Difference]: Without dead ends: 370
[2024-11-08 17:49:45,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:49:45,273 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 108 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:45,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 379 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:49:45,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states.
[2024-11-08 17:49:45,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 319.
[2024-11-08 17:49:45,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 240 states have (on average 1.8291666666666666) internal successors, (439), 308 states have internal predecessors, (439), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-08 17:49:45,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 455 transitions.
[2024-11-08 17:49:45,307 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 455 transitions. Word has length 8
[2024-11-08 17:49:45,311 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:45,312 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 455 transitions.
[2024-11-08 17:49:45,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 17:49:45,312 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 455 transitions.
[2024-11-08 17:49:45,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-08 17:49:45,313 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:45,313 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:49:45,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 17:49:45,314 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:45,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:45,315 INFO L85 PathProgramCache]: Analyzing trace with hash -735842544, now seen corresponding path program 1 times
[2024-11-08 17:49:45,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:45,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294381726]
[2024-11-08 17:49:45,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:45,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:45,401 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 17:49:45,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:45,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294381726]
[2024-11-08 17:49:45,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294381726] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:45,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:45,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:49:45,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694619350]
[2024-11-08 17:49:45,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:45,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:49:45,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:45,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:49:45,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:49:45,408 INFO L87 Difference]: Start difference. First operand 319 states and 455 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:49:45,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:45,452 INFO L93 Difference]: Finished difference Result 457 states and 609 transitions.
[2024-11-08 17:49:45,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:49:45,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12
[2024-11-08 17:49:45,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:45,457 INFO L225 Difference]: With dead ends: 457
[2024-11-08 17:49:45,457 INFO L226 Difference]: Without dead ends: 457
[2024-11-08 17:49:45,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 17:49:45,463 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 158 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:45,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 372 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:49:45,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states.
[2024-11-08 17:49:45,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 321.
[2024-11-08 17:49:45,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 242 states have (on average 1.8140495867768596) internal successors, (439), 310 states have internal predecessors, (439), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-08 17:49:45,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 455 transitions.
[2024-11-08 17:49:45,488 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 455 transitions. Word has length 12
[2024-11-08 17:49:45,489 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:45,489 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 455 transitions.
[2024-11-08 17:49:45,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:49:45,490 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 455 transitions.
[2024-11-08 17:49:45,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-08 17:49:45,491 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:45,491 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:49:45,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-08 17:49:45,492 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:45,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:45,493 INFO L85 PathProgramCache]: Analyzing trace with hash -735825759, now seen corresponding path program 1 times
[2024-11-08 17:49:45,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:45,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258010823]
[2024-11-08 17:49:45,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:45,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:45,554 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 17:49:45,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:45,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258010823]
[2024-11-08 17:49:45,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258010823] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:45,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:45,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:49:45,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257540495]
[2024-11-08 17:49:45,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:45,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:49:45,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:45,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:49:45,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:49:45,557 INFO L87 Difference]: Start difference. First operand 321 states and 455 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:49:45,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:45,743 INFO L93 Difference]: Finished difference Result 372 states and 502 transitions.
[2024-11-08 17:49:45,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:49:45,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12
[2024-11-08 17:49:45,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:45,748 INFO L225 Difference]: With dead ends: 372
[2024-11-08 17:49:45,749 INFO L226 Difference]: Without dead ends: 365
[2024-11-08 17:49:45,749 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 17:49:45,750 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 71 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:45,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 289 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:49:45,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states.
[2024-11-08 17:49:45,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 318.
[2024-11-08 17:49:45,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 239 states have (on average 1.8158995815899581) internal successors, (434), 307 states have internal predecessors, (434), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-08 17:49:45,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 450 transitions.
[2024-11-08 17:49:45,771 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 450 transitions. Word has length 12
[2024-11-08 17:49:45,771 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:45,771 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 450 transitions.
[2024-11-08 17:49:45,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:49:45,772 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 450 transitions.
[2024-11-08 17:49:45,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-08 17:49:45,773 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:45,773 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 17:49:45,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-08 17:49:45,774 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:45,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:45,775 INFO L85 PathProgramCache]: Analyzing trace with hash -598836032, now seen corresponding path program 1 times
[2024-11-08 17:49:45,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:45,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096927193]
[2024-11-08 17:49:45,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:45,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:45,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2024-11-08 17:49:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:45,967 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 17:49:45,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:45,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096927193]
[2024-11-08 17:49:45,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096927193] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:45,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:45,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:49:45,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348497304]
[2024-11-08 17:49:45,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:45,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:49:45,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:45,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:49:45,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:49:45,972 INFO L87 Difference]: Start difference. First operand 318 states and 450 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:46,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:46,348 INFO L93 Difference]: Finished difference Result 427 states and 547 transitions.
[2024-11-08 17:49:46,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:49:46,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2024-11-08 17:49:46,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:46,351 INFO L225 Difference]: With dead ends: 427
[2024-11-08 17:49:46,351 INFO L226 Difference]: Without dead ends: 427
[2024-11-08 17:49:46,352 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 17:49:46,353 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 174 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:46,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 364 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:49:46,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states.
[2024-11-08 17:49:46,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 324.
[2024-11-08 17:49:46,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 245 states have (on average 1.7959183673469388) internal successors, (440), 313 states have internal predecessors, (440), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-08 17:49:46,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 456 transitions.
[2024-11-08 17:49:46,369 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 456 transitions. Word has length 17
[2024-11-08 17:49:46,370 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:46,371 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 456 transitions.
[2024-11-08 17:49:46,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:46,372 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 456 transitions.
[2024-11-08 17:49:46,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-08 17:49:46,373 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:46,373 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 17:49:46,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-08 17:49:46,373 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:46,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:46,374 INFO L85 PathProgramCache]: Analyzing trace with hash -598836031, now seen corresponding path program 1 times
[2024-11-08 17:49:46,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:46,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120162450]
[2024-11-08 17:49:46,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:46,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:46,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2024-11-08 17:49:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:46,573 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 17:49:46,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:46,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120162450]
[2024-11-08 17:49:46,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120162450] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:46,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:46,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:49:46,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975686385]
[2024-11-08 17:49:46,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:46,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:49:46,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:46,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:49:46,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:49:46,576 INFO L87 Difference]: Start difference. First operand 324 states and 456 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:46,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:46,847 INFO L93 Difference]: Finished difference Result 358 states and 456 transitions.
[2024-11-08 17:49:46,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:49:46,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2024-11-08 17:49:46,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:46,850 INFO L225 Difference]: With dead ends: 358
[2024-11-08 17:49:46,850 INFO L226 Difference]: Without dead ends: 358
[2024-11-08 17:49:46,851 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 17:49:46,851 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 94 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:46,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 438 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:49:46,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states.
[2024-11-08 17:49:46,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 324.
[2024-11-08 17:49:46,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 245 states have (on average 1.7714285714285714) internal successors, (434), 313 states have internal predecessors, (434), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-08 17:49:46,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 450 transitions.
[2024-11-08 17:49:46,877 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 450 transitions. Word has length 17
[2024-11-08 17:49:46,877 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:46,877 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 450 transitions.
[2024-11-08 17:49:46,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:46,877 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 450 transitions.
[2024-11-08 17:49:46,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2024-11-08 17:49:46,881 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:46,882 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:49:46,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-08 17:49:46,882 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:46,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:46,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1098166815, now seen corresponding path program 1 times
[2024-11-08 17:49:46,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:46,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38262948]
[2024-11-08 17:49:46,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:46,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:47,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:49:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:47,286 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 17:49:47,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:47,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38262948]
[2024-11-08 17:49:47,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38262948] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:47,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:47,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 17:49:47,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787335104]
[2024-11-08 17:49:47,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:47,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 17:49:47,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:47,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 17:49:47,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:49:47,291 INFO L87 Difference]: Start difference. First operand 324 states and 450 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:48,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:48,016 INFO L93 Difference]: Finished difference Result 460 states and 583 transitions.
[2024-11-08 17:49:48,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 17:49:48,017 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18
[2024-11-08 17:49:48,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:48,020 INFO L225 Difference]: With dead ends: 460
[2024-11-08 17:49:48,022 INFO L226 Difference]: Without dead ends: 460
[2024-11-08 17:49:48,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2024-11-08 17:49:48,024 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 276 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:48,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 492 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 17:49:48,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states.
[2024-11-08 17:49:48,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 345.
[2024-11-08 17:49:48,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 266 states have (on average 1.7894736842105263) internal successors, (476), 334 states have internal predecessors, (476), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-08 17:49:48,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 492 transitions.
[2024-11-08 17:49:48,040 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 492 transitions. Word has length 18
[2024-11-08 17:49:48,040 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:48,040 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 492 transitions.
[2024-11-08 17:49:48,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:48,041 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 492 transitions.
[2024-11-08 17:49:48,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2024-11-08 17:49:48,041 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:48,042 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:49:48,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-08 17:49:48,042 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:48,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:48,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1098166814, now seen corresponding path program 1 times
[2024-11-08 17:49:48,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:48,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689577351]
[2024-11-08 17:49:48,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:48,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:48,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:49:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:48,200 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 17:49:48,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:48,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689577351]
[2024-11-08 17:49:48,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689577351] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:48,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:48,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:49:48,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379062321]
[2024-11-08 17:49:48,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:48,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:49:48,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:48,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:49:48,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:49:48,204 INFO L87 Difference]: Start difference. First operand 345 states and 492 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:48,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:48,643 INFO L93 Difference]: Finished difference Result 444 states and 570 transitions.
[2024-11-08 17:49:48,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:49:48,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18
[2024-11-08 17:49:48,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:48,646 INFO L225 Difference]: With dead ends: 444
[2024-11-08 17:49:48,646 INFO L226 Difference]: Without dead ends: 444
[2024-11-08 17:49:48,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:49:48,647 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 299 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:48,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 440 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 17:49:48,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states.
[2024-11-08 17:49:48,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 341.
[2024-11-08 17:49:48,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 266 states have (on average 1.7406015037593985) internal successors, (463), 330 states have internal predecessors, (463), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-08 17:49:48,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 479 transitions.
[2024-11-08 17:49:48,661 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 479 transitions. Word has length 18
[2024-11-08 17:49:48,662 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:48,662 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 479 transitions.
[2024-11-08 17:49:48,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:48,662 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 479 transitions.
[2024-11-08 17:49:48,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-11-08 17:49:48,663 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:48,663 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]
[2024-11-08 17:49:48,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-08 17:49:48,664 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:48,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:48,664 INFO L85 PathProgramCache]: Analyzing trace with hash 897773476, now seen corresponding path program 1 times
[2024-11-08 17:49:48,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:48,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902357812]
[2024-11-08 17:49:48,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:48,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:49,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:49:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:49,091 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 17:49:49,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:49,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902357812]
[2024-11-08 17:49:49,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902357812] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:49,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:49,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-08 17:49:49,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786377489]
[2024-11-08 17:49:49,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:49,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 17:49:49,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:49,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 17:49:49,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:49:49,097 INFO L87 Difference]: Start difference. First operand 341 states and 479 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:49,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:49,627 INFO L93 Difference]: Finished difference Result 501 states and 680 transitions.
[2024-11-08 17:49:49,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-08 17:49:49,628 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22
[2024-11-08 17:49:49,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:49,631 INFO L225 Difference]: With dead ends: 501
[2024-11-08 17:49:49,631 INFO L226 Difference]: Without dead ends: 501
[2024-11-08 17:49:49,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182
[2024-11-08 17:49:49,632 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 131 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:49,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 1107 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:49:49,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states.
[2024-11-08 17:49:49,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 400.
[2024-11-08 17:49:49,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 322 states have (on average 1.7018633540372672) internal successors, (548), 385 states have internal predecessors, (548), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 17:49:49,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 568 transitions.
[2024-11-08 17:49:49,649 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 568 transitions. Word has length 22
[2024-11-08 17:49:49,650 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:49,650 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 568 transitions.
[2024-11-08 17:49:49,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:49,651 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 568 transitions.
[2024-11-08 17:49:49,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-11-08 17:49:49,651 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:49,652 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]
[2024-11-08 17:49:49,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-08 17:49:49,652 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:49,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:49,653 INFO L85 PathProgramCache]: Analyzing trace with hash 717929188, now seen corresponding path program 1 times
[2024-11-08 17:49:49,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:49,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626256783]
[2024-11-08 17:49:49,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:49,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:50,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2024-11-08 17:49:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:50,020 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 17:49:50,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:50,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626256783]
[2024-11-08 17:49:50,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626256783] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:50,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:50,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-08 17:49:50,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621671453]
[2024-11-08 17:49:50,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:50,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 17:49:50,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:50,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 17:49:50,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:49:50,024 INFO L87 Difference]: Start difference. First operand 400 states and 568 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:50,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:50,622 INFO L93 Difference]: Finished difference Result 483 states and 656 transitions.
[2024-11-08 17:49:50,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 17:49:50,623 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23
[2024-11-08 17:49:50,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:50,626 INFO L225 Difference]: With dead ends: 483
[2024-11-08 17:49:50,627 INFO L226 Difference]: Without dead ends: 483
[2024-11-08 17:49:50,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156
[2024-11-08 17:49:50,629 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 111 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:50,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1106 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:49:50,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states.
[2024-11-08 17:49:50,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 394.
[2024-11-08 17:49:50,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 316 states have (on average 1.6993670886075949) internal successors, (537), 379 states have internal predecessors, (537), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 17:49:50,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 557 transitions.
[2024-11-08 17:49:50,648 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 557 transitions. Word has length 23
[2024-11-08 17:49:50,648 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:50,648 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 557 transitions.
[2024-11-08 17:49:50,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:50,649 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 557 transitions.
[2024-11-08 17:49:50,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-11-08 17:49:50,650 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:50,650 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]
[2024-11-08 17:49:50,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-08 17:49:50,650 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:50,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:50,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1879402374, now seen corresponding path program 1 times
[2024-11-08 17:49:50,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:50,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420755310]
[2024-11-08 17:49:50,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:50,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:50,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:49:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:50,759 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 17:49:50,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:50,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420755310]
[2024-11-08 17:49:50,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420755310] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:50,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:50,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 17:49:50,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488388828]
[2024-11-08 17:49:50,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:50,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:49:50,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:50,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:49:50,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:49:50,762 INFO L87 Difference]: Start difference. First operand 394 states and 557 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:50,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:50,797 INFO L93 Difference]: Finished difference Result 392 states and 549 transitions.
[2024-11-08 17:49:50,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:49:50,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23
[2024-11-08 17:49:50,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:50,800 INFO L225 Difference]: With dead ends: 392
[2024-11-08 17:49:50,800 INFO L226 Difference]: Without dead ends: 392
[2024-11-08 17:49:50,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:49:50,801 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 50 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:50,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 853 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:49:50,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states.
[2024-11-08 17:49:50,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392.
[2024-11-08 17:49:50,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 314 states have (on average 1.6847133757961783) internal successors, (529), 377 states have internal predecessors, (529), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 17:49:50,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 549 transitions.
[2024-11-08 17:49:50,815 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 549 transitions. Word has length 23
[2024-11-08 17:49:50,815 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:50,816 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 549 transitions.
[2024-11-08 17:49:50,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:50,816 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 549 transitions.
[2024-11-08 17:49:50,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-08 17:49:50,817 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:50,817 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 17:49:50,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-08 17:49:50,818 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:50,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:50,819 INFO L85 PathProgramCache]: Analyzing trace with hash -519420613, now seen corresponding path program 1 times
[2024-11-08 17:49:50,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:50,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985626466]
[2024-11-08 17:49:50,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:50,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:50,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:49:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:50,876 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 17:49:50,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:50,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985626466]
[2024-11-08 17:49:50,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985626466] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:50,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:50,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:49:50,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703486258]
[2024-11-08 17:49:50,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:50,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:49:50,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:50,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:49:50,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:49:50,880 INFO L87 Difference]: Start difference. First operand 392 states and 549 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:51,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:51,007 INFO L93 Difference]: Finished difference Result 389 states and 540 transitions.
[2024-11-08 17:49:51,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:49:51,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24
[2024-11-08 17:49:51,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:51,010 INFO L225 Difference]: With dead ends: 389
[2024-11-08 17:49:51,010 INFO L226 Difference]: Without dead ends: 389
[2024-11-08 17:49:51,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 17:49:51,012 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 26 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:51,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 258 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:49:51,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states.
[2024-11-08 17:49:51,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389.
[2024-11-08 17:49:51,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 314 states have (on average 1.6560509554140128) internal successors, (520), 374 states have internal predecessors, (520), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 17:49:51,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 540 transitions.
[2024-11-08 17:49:51,026 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 540 transitions. Word has length 24
[2024-11-08 17:49:51,026 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:51,027 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 540 transitions.
[2024-11-08 17:49:51,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:51,027 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 540 transitions.
[2024-11-08 17:49:51,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-08 17:49:51,028 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:51,028 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 17:49:51,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-08 17:49:51,029 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:51,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:51,029 INFO L85 PathProgramCache]: Analyzing trace with hash -519420612, now seen corresponding path program 1 times
[2024-11-08 17:49:51,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:51,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684618701]
[2024-11-08 17:49:51,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:51,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:51,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:49:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:51,144 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 17:49:51,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:51,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684618701]
[2024-11-08 17:49:51,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684618701] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:51,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:51,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:49:51,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843855603]
[2024-11-08 17:49:51,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:51,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:49:51,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:51,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:49:51,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:49:51,147 INFO L87 Difference]: Start difference. First operand 389 states and 540 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:51,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:51,330 INFO L93 Difference]: Finished difference Result 387 states and 534 transitions.
[2024-11-08 17:49:51,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:49:51,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24
[2024-11-08 17:49:51,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:51,333 INFO L225 Difference]: With dead ends: 387
[2024-11-08 17:49:51,333 INFO L226 Difference]: Without dead ends: 387
[2024-11-08 17:49:51,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:49:51,334 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 26 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:51,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 372 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:49:51,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states.
[2024-11-08 17:49:51,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387.
[2024-11-08 17:49:51,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 314 states have (on average 1.6369426751592357) internal successors, (514), 372 states have internal predecessors, (514), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 17:49:51,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 534 transitions.
[2024-11-08 17:49:51,347 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 534 transitions. Word has length 24
[2024-11-08 17:49:51,348 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:51,348 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 534 transitions.
[2024-11-08 17:49:51,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 534 transitions.
[2024-11-08 17:49:51,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-11-08 17:49:51,349 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:51,349 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]
[2024-11-08 17:49:51,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-08 17:49:51,350 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:51,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:51,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1552143185, now seen corresponding path program 1 times
[2024-11-08 17:49:51,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:51,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898981002]
[2024-11-08 17:49:51,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:51,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:51,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2024-11-08 17:49:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:51,434 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 17:49:51,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:51,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898981002]
[2024-11-08 17:49:51,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898981002] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:51,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:51,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:49:51,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160355950]
[2024-11-08 17:49:51,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:51,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:49:51,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:51,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:49:51,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:49:51,437 INFO L87 Difference]: Start difference. First operand 387 states and 534 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:51,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:51,637 INFO L93 Difference]: Finished difference Result 392 states and 533 transitions.
[2024-11-08 17:49:51,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:49:51,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25
[2024-11-08 17:49:51,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:51,641 INFO L225 Difference]: With dead ends: 392
[2024-11-08 17:49:51,641 INFO L226 Difference]: Without dead ends: 392
[2024-11-08 17:49:51,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:49:51,643 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 30 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:51,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 485 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:49:51,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states.
[2024-11-08 17:49:51,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 386.
[2024-11-08 17:49:51,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 319 states have (on average 1.5830721003134796) internal successors, (505), 371 states have internal predecessors, (505), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 17:49:51,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 525 transitions.
[2024-11-08 17:49:51,661 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 525 transitions. Word has length 25
[2024-11-08 17:49:51,662 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:51,662 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 525 transitions.
[2024-11-08 17:49:51,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:51,662 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 525 transitions.
[2024-11-08 17:49:51,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-11-08 17:49:51,663 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:51,663 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]
[2024-11-08 17:49:51,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-08 17:49:51,663 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:51,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:51,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1552143184, now seen corresponding path program 1 times
[2024-11-08 17:49:51,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:51,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843901897]
[2024-11-08 17:49:51,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:51,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:51,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2024-11-08 17:49:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:51,956 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 17:49:51,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:51,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843901897]
[2024-11-08 17:49:51,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843901897] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:51,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:51,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-08 17:49:51,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475110691]
[2024-11-08 17:49:51,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:51,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 17:49:51,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:51,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 17:49:51,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:49:51,958 INFO L87 Difference]: Start difference. First operand 386 states and 525 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:52,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:52,250 INFO L93 Difference]: Finished difference Result 287 states and 369 transitions.
[2024-11-08 17:49:52,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 17:49:52,251 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25
[2024-11-08 17:49:52,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:52,253 INFO L225 Difference]: With dead ends: 287
[2024-11-08 17:49:52,253 INFO L226 Difference]: Without dead ends: 287
[2024-11-08 17:49:52,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156
[2024-11-08 17:49:52,254 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 39 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:52,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1079 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:49:52,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states.
[2024-11-08 17:49:52,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 283.
[2024-11-08 17:49:52,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 222 states have (on average 1.59009009009009) internal successors, (353), 273 states have internal predecessors, (353), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:49:52,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 365 transitions.
[2024-11-08 17:49:52,264 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 365 transitions. Word has length 25
[2024-11-08 17:49:52,264 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:52,264 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 365 transitions.
[2024-11-08 17:49:52,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:52,265 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 365 transitions.
[2024-11-08 17:49:52,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-08 17:49:52,265 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:52,266 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 17:49:52,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-08 17:49:52,266 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:52,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:52,267 INFO L85 PathProgramCache]: Analyzing trace with hash -947000130, now seen corresponding path program 1 times
[2024-11-08 17:49:52,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:52,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980103815]
[2024-11-08 17:49:52,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:52,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:52,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:49:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:52,412 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 17:49:52,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:52,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980103815]
[2024-11-08 17:49:52,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980103815] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:52,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:52,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:49:52,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221234906]
[2024-11-08 17:49:52,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:52,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:49:52,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:52,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:49:52,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:49:52,414 INFO L87 Difference]: Start difference. First operand 283 states and 365 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:52,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:52,553 INFO L93 Difference]: Finished difference Result 282 states and 362 transitions.
[2024-11-08 17:49:52,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:49:52,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26
[2024-11-08 17:49:52,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:52,556 INFO L225 Difference]: With dead ends: 282
[2024-11-08 17:49:52,556 INFO L226 Difference]: Without dead ends: 282
[2024-11-08 17:49:52,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 17:49:52,557 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 39 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:52,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 411 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:49:52,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states.
[2024-11-08 17:49:52,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282.
[2024-11-08 17:49:52,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 222 states have (on average 1.5765765765765767) internal successors, (350), 272 states have internal predecessors, (350), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:49:52,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 362 transitions.
[2024-11-08 17:49:52,565 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 362 transitions. Word has length 26
[2024-11-08 17:49:52,565 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:52,565 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 362 transitions.
[2024-11-08 17:49:52,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:52,566 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 362 transitions.
[2024-11-08 17:49:52,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-08 17:49:52,566 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:52,566 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 17:49:52,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-08 17:49:52,567 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:52,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:52,567 INFO L85 PathProgramCache]: Analyzing trace with hash -947000324, now seen corresponding path program 1 times
[2024-11-08 17:49:52,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:52,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063750737]
[2024-11-08 17:49:52,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:52,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:52,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:49:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:52,733 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 17:49:52,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:52,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063750737]
[2024-11-08 17:49:52,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063750737] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:52,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:52,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 17:49:52,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682873898]
[2024-11-08 17:49:52,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:52,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 17:49:52,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:52,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 17:49:52,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:49:52,736 INFO L87 Difference]: Start difference. First operand 282 states and 362 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:52,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:52,955 INFO L93 Difference]: Finished difference Result 312 states and 394 transitions.
[2024-11-08 17:49:52,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 17:49:52,956 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26
[2024-11-08 17:49:52,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:52,958 INFO L225 Difference]: With dead ends: 312
[2024-11-08 17:49:52,958 INFO L226 Difference]: Without dead ends: 312
[2024-11-08 17:49:52,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-08 17:49:52,959 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 12 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:52,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 735 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:49:52,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states.
[2024-11-08 17:49:52,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 309.
[2024-11-08 17:49:52,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 249 states have (on average 1.5220883534136547) internal successors, (379), 299 states have internal predecessors, (379), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:49:52,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 391 transitions.
[2024-11-08 17:49:52,977 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 391 transitions. Word has length 26
[2024-11-08 17:49:52,977 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:52,977 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 391 transitions.
[2024-11-08 17:49:52,978 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:52,978 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 391 transitions.
[2024-11-08 17:49:52,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2024-11-08 17:49:52,979 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:52,979 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, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:49:52,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-11-08 17:49:52,980 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:52,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:52,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1795288470, now seen corresponding path program 1 times
[2024-11-08 17:49:52,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:52,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746789837]
[2024-11-08 17:49:52,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:52,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:53,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:49:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:53,115 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 17:49:53,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:53,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746789837]
[2024-11-08 17:49:53,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746789837] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:53,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:53,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:49:53,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860798769]
[2024-11-08 17:49:53,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:53,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:49:53,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:53,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:49:53,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:49:53,117 INFO L87 Difference]: Start difference. First operand 309 states and 391 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:53,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:53,361 INFO L93 Difference]: Finished difference Result 310 states and 391 transitions.
[2024-11-08 17:49:53,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:49:53,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34
[2024-11-08 17:49:53,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:53,363 INFO L225 Difference]: With dead ends: 310
[2024-11-08 17:49:53,364 INFO L226 Difference]: Without dead ends: 310
[2024-11-08 17:49:53,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:49:53,365 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 49 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:53,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 566 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:49:53,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states.
[2024-11-08 17:49:53,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 308.
[2024-11-08 17:49:53,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 249 states have (on average 1.5140562248995983) internal successors, (377), 298 states have internal predecessors, (377), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:49:53,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 389 transitions.
[2024-11-08 17:49:53,374 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 389 transitions. Word has length 34
[2024-11-08 17:49:53,375 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:53,375 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 389 transitions.
[2024-11-08 17:49:53,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:53,375 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 389 transitions.
[2024-11-08 17:49:53,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2024-11-08 17:49:53,376 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:53,376 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, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:49:53,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-11-08 17:49:53,376 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:53,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:53,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1795288469, now seen corresponding path program 1 times
[2024-11-08 17:49:53,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:53,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747370245]
[2024-11-08 17:49:53,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:53,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:53,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:49:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:53,628 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 17:49:53,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:53,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747370245]
[2024-11-08 17:49:53,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747370245] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:53,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:53,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:49:53,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027961537]
[2024-11-08 17:49:53,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:53,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:49:53,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:53,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:49:53,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:49:53,631 INFO L87 Difference]: Start difference. First operand 308 states and 389 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:53,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:53,876 INFO L93 Difference]: Finished difference Result 309 states and 389 transitions.
[2024-11-08 17:49:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:49:53,877 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34
[2024-11-08 17:49:53,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:53,878 INFO L225 Difference]: With dead ends: 309
[2024-11-08 17:49:53,879 INFO L226 Difference]: Without dead ends: 309
[2024-11-08 17:49:53,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:49:53,880 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 39 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:53,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 570 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:49:53,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states.
[2024-11-08 17:49:53,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 307.
[2024-11-08 17:49:53,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 249 states have (on average 1.5060240963855422) internal successors, (375), 297 states have internal predecessors, (375), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:49:53,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 387 transitions.
[2024-11-08 17:49:53,890 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 387 transitions. Word has length 34
[2024-11-08 17:49:53,890 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:53,890 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 387 transitions.
[2024-11-08 17:49:53,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:53,891 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 387 transitions.
[2024-11-08 17:49:53,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2024-11-08 17:49:53,891 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:53,891 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, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:49:53,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-11-08 17:49:53,892 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:53,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:53,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1304637068, now seen corresponding path program 1 times
[2024-11-08 17:49:53,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:53,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987914748]
[2024-11-08 17:49:53,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:53,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:54,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:49:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:54,054 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 17:49:54,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:54,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987914748]
[2024-11-08 17:49:54,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987914748] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:54,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:54,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:49:54,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292364496]
[2024-11-08 17:49:54,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:54,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:49:54,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:54,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:49:54,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:49:54,058 INFO L87 Difference]: Start difference. First operand 307 states and 387 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:54,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:54,279 INFO L93 Difference]: Finished difference Result 345 states and 431 transitions.
[2024-11-08 17:49:54,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:49:54,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36
[2024-11-08 17:49:54,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:54,282 INFO L225 Difference]: With dead ends: 345
[2024-11-08 17:49:54,282 INFO L226 Difference]: Without dead ends: 345
[2024-11-08 17:49:54,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:49:54,283 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 62 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:54,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 469 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:49:54,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states.
[2024-11-08 17:49:54,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 304.
[2024-11-08 17:49:54,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 249 states have (on average 1.4819277108433735) internal successors, (369), 294 states have internal predecessors, (369), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:49:54,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 381 transitions.
[2024-11-08 17:49:54,293 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 381 transitions. Word has length 36
[2024-11-08 17:49:54,294 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:54,294 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 381 transitions.
[2024-11-08 17:49:54,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:54,294 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 381 transitions.
[2024-11-08 17:49:54,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2024-11-08 17:49:54,295 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:54,295 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, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:49:54,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-11-08 17:49:54,295 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:54,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:54,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1304637069, now seen corresponding path program 1 times
[2024-11-08 17:49:54,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:54,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348215849]
[2024-11-08 17:49:54,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:54,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:54,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:49:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:54,751 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 17:49:54,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:54,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348215849]
[2024-11-08 17:49:54,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348215849] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:54,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:54,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:49:54,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975777194]
[2024-11-08 17:49:54,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:54,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:49:54,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:54,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:49:54,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:49:54,754 INFO L87 Difference]: Start difference. First operand 304 states and 381 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:55,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:55,129 INFO L93 Difference]: Finished difference Result 372 states and 433 transitions.
[2024-11-08 17:49:55,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:49:55,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36
[2024-11-08 17:49:55,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:55,131 INFO L225 Difference]: With dead ends: 372
[2024-11-08 17:49:55,131 INFO L226 Difference]: Without dead ends: 372
[2024-11-08 17:49:55,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:49:55,132 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 194 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:55,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 302 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:49:55,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states.
[2024-11-08 17:49:55,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 304.
[2024-11-08 17:49:55,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 249 states have (on average 1.4698795180722892) internal successors, (366), 294 states have internal predecessors, (366), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:49:55,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 378 transitions.
[2024-11-08 17:49:55,145 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 378 transitions. Word has length 36
[2024-11-08 17:49:55,145 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:55,145 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 378 transitions.
[2024-11-08 17:49:55,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:55,145 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 378 transitions.
[2024-11-08 17:49:55,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-11-08 17:49:55,146 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:55,147 INFO L215 NwaCegarLoop]: trace histogram [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]
[2024-11-08 17:49:55,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-11-08 17:49:55,147 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:55,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:55,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1602110178, now seen corresponding path program 1 times
[2024-11-08 17:49:55,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:55,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541722724]
[2024-11-08 17:49:55,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:55,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:55,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:49:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:55,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2024-11-08 17:49:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:55,489 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:49:55,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:55,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541722724]
[2024-11-08 17:49:55,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541722724] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:49:55,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956398383]
[2024-11-08 17:49:55,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:55,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:49:55,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:49:55,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:49:55,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 17:49:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:55,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 27 conjuncts are in the unsatisfiable core
[2024-11-08 17:49:55,741 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:49:56,338 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:49:56,338 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:49:56,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956398383] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:56,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:49:56,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9
[2024-11-08 17:49:56,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620027634]
[2024-11-08 17:49:56,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:56,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:49:56,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:56,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:49:56,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-11-08 17:49:56,340 INFO L87 Difference]: Start difference. First operand 304 states and 378 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:49:56,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:56,587 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions.
[2024-11-08 17:49:56,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:49:56,588 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50
[2024-11-08 17:49:56,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:56,590 INFO L225 Difference]: With dead ends: 304
[2024-11-08 17:49:56,590 INFO L226 Difference]: Without dead ends: 304
[2024-11-08 17:49:56,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132
[2024-11-08 17:49:56,591 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 286 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:56,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 286 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:49:56,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states.
[2024-11-08 17:49:56,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 302.
[2024-11-08 17:49:56,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 249 states have (on average 1.4578313253012047) internal successors, (363), 292 states have internal predecessors, (363), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:49:56,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 375 transitions.
[2024-11-08 17:49:56,600 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 375 transitions. Word has length 50
[2024-11-08 17:49:56,600 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:56,600 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 375 transitions.
[2024-11-08 17:49:56,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:49:56,601 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 375 transitions.
[2024-11-08 17:49:56,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2024-11-08 17:49:56,601 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:56,602 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:49:56,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 17:49:56,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24
[2024-11-08 17:49:56,803 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:56,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:56,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1746892735, now seen corresponding path program 1 times
[2024-11-08 17:49:56,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:56,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760775697]
[2024-11-08 17:49:56,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:56,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:56,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:49:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:56,934 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:49:56,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:56,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760775697]
[2024-11-08 17:49:56,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760775697] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:49:56,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658541545]
[2024-11-08 17:49:56,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:56,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:49:56,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:49:56,937 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:49:56,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 17:49:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:57,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 17:49:57,157 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:49:57,254 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:49:57,254 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:49:57,369 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:49:57,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658541545] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:49:57,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:49:57,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7
[2024-11-08 17:49:57,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186143837]
[2024-11-08 17:49:57,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:49:57,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 17:49:57,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:57,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 17:49:57,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:49:57,374 INFO L87 Difference]: Start difference. First operand 302 states and 375 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-08 17:49:57,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:57,484 INFO L93 Difference]: Finished difference Result 1083 states and 1346 transitions.
[2024-11-08 17:49:57,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 17:49:57,485 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 51
[2024-11-08 17:49:57,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:57,489 INFO L225 Difference]: With dead ends: 1083
[2024-11-08 17:49:57,490 INFO L226 Difference]: Without dead ends: 1083
[2024-11-08 17:49:57,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90
[2024-11-08 17:49:57,491 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 369 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:57,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 1113 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:49:57,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states.
[2024-11-08 17:49:57,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 707.
[2024-11-08 17:49:57,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 643 states have (on average 1.4432348367029548) internal successors, (928), 686 states have internal predecessors, (928), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2024-11-08 17:49:57,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 962 transitions.
[2024-11-08 17:49:57,516 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 962 transitions. Word has length 51
[2024-11-08 17:49:57,516 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:57,516 INFO L471 AbstractCegarLoop]: Abstraction has 707 states and 962 transitions.
[2024-11-08 17:49:57,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-08 17:49:57,517 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 962 transitions.
[2024-11-08 17:49:57,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2024-11-08 17:49:57,518 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:57,518 INFO L215 NwaCegarLoop]: trace histogram [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]
[2024-11-08 17:49:57,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 17:49:57,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25
[2024-11-08 17:49:57,722 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:57,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:57,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1748739777, now seen corresponding path program 1 times
[2024-11-08 17:49:57,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:57,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796410272]
[2024-11-08 17:49:57,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:57,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:57,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:49:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:57,969 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:49:57,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:57,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796410272]
[2024-11-08 17:49:57,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796410272] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:57,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:49:57,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:49:57,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581171611]
[2024-11-08 17:49:57,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:57,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:49:57,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:57,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:49:57,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:49:57,973 INFO L87 Difference]: Start difference. First operand 707 states and 962 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:58,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:49:58,196 INFO L93 Difference]: Finished difference Result 715 states and 970 transitions.
[2024-11-08 17:49:58,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 17:49:58,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51
[2024-11-08 17:49:58,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:49:58,200 INFO L225 Difference]: With dead ends: 715
[2024-11-08 17:49:58,201 INFO L226 Difference]: Without dead ends: 715
[2024-11-08 17:49:58,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:49:58,202 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 133 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:49:58,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 296 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:49:58,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states.
[2024-11-08 17:49:58,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 709.
[2024-11-08 17:49:58,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 645 states have (on average 1.4434108527131784) internal successors, (931), 688 states have internal predecessors, (931), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2024-11-08 17:49:58,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 965 transitions.
[2024-11-08 17:49:58,221 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 965 transitions. Word has length 51
[2024-11-08 17:49:58,221 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:49:58,221 INFO L471 AbstractCegarLoop]: Abstraction has 709 states and 965 transitions.
[2024-11-08 17:49:58,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:49:58,222 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 965 transitions.
[2024-11-08 17:49:58,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2024-11-08 17:49:58,223 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:49:58,223 INFO L215 NwaCegarLoop]: trace histogram [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]
[2024-11-08 17:49:58,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2024-11-08 17:49:58,223 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:49:58,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:49:58,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1748739715, now seen corresponding path program 1 times
[2024-11-08 17:49:58,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:49:58,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797457310]
[2024-11-08 17:49:58,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:58,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:49:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:58,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:49:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:49:58,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:49:58,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797457310]
[2024-11-08 17:49:58,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797457310] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:49:58,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946890147]
[2024-11-08 17:49:58,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:49:58,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:49:58,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:49:58,657 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:49:58,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 17:49:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:49:58,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-08 17:49:58,897 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:49:59,641 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:49:59,641 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:49:59,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946890147] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:49:59,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:49:59,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 15
[2024-11-08 17:49:59,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267851967]
[2024-11-08 17:49:59,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:49:59,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-08 17:49:59,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:49:59,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-08 17:49:59,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240
[2024-11-08 17:49:59,643 INFO L87 Difference]: Start difference. First operand 709 states and 965 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:50:00,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:50:00,153 INFO L93 Difference]: Finished difference Result 783 states and 1064 transitions.
[2024-11-08 17:50:00,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 17:50:00,154 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51
[2024-11-08 17:50:00,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:50:00,157 INFO L225 Difference]: With dead ends: 783
[2024-11-08 17:50:00,157 INFO L226 Difference]: Without dead ends: 783
[2024-11-08 17:50:00,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380
[2024-11-08 17:50:00,158 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 461 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:50:00,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 499 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 17:50:00,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states.
[2024-11-08 17:50:00,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 706.
[2024-11-08 17:50:00,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 643 states have (on average 1.4401244167962675) internal successors, (926), 685 states have internal predecessors, (926), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2024-11-08 17:50:00,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 960 transitions.
[2024-11-08 17:50:00,177 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 960 transitions. Word has length 51
[2024-11-08 17:50:00,177 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:50:00,177 INFO L471 AbstractCegarLoop]: Abstraction has 706 states and 960 transitions.
[2024-11-08 17:50:00,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:50:00,178 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 960 transitions.
[2024-11-08 17:50:00,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2024-11-08 17:50:00,179 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:50:00,179 INFO L215 NwaCegarLoop]: trace histogram [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 17:50:00,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-08 17:50:00,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27
[2024-11-08 17:50:00,380 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:50:00,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:50:00,380 INFO L85 PathProgramCache]: Analyzing trace with hash -2029585121, now seen corresponding path program 1 times
[2024-11-08 17:50:00,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:50:00,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149633791]
[2024-11-08 17:50:00,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:50:00,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:50:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:50:00,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:50:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:50:00,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2024-11-08 17:50:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:50:00,715 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:50:00,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:50:00,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149633791]
[2024-11-08 17:50:00,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149633791] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:50:00,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:50:00,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:50:00,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017098538]
[2024-11-08 17:50:00,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:50:00,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:50:00,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:50:00,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:50:00,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:50:00,718 INFO L87 Difference]: Start difference. First operand 706 states and 960 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:50:00,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:50:00,954 INFO L93 Difference]: Finished difference Result 710 states and 959 transitions.
[2024-11-08 17:50:00,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 17:50:00,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52
[2024-11-08 17:50:00,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:50:00,958 INFO L225 Difference]: With dead ends: 710
[2024-11-08 17:50:00,958 INFO L226 Difference]: Without dead ends: 710
[2024-11-08 17:50:00,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-11-08 17:50:00,959 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 143 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:50:00,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 335 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:50:00,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states.
[2024-11-08 17:50:00,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 705.
[2024-11-08 17:50:00,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 643 states have (on average 1.4307931570762054) internal successors, (920), 684 states have internal predecessors, (920), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2024-11-08 17:50:00,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 954 transitions.
[2024-11-08 17:50:00,979 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 954 transitions. Word has length 52
[2024-11-08 17:50:00,979 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:50:00,979 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 954 transitions.
[2024-11-08 17:50:00,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:50:00,980 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 954 transitions.
[2024-11-08 17:50:00,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-11-08 17:50:00,981 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:50:00,981 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:50:00,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2024-11-08 17:50:00,981 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:50:00,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:50:00,982 INFO L85 PathProgramCache]: Analyzing trace with hash -301309593, now seen corresponding path program 1 times
[2024-11-08 17:50:00,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:50:00,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416260622]
[2024-11-08 17:50:00,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:50:00,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:50:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:50:03,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:50:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:50:03,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2024-11-08 17:50:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:50:03,557 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:50:03,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:50:03,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416260622]
[2024-11-08 17:50:03,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416260622] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:50:03,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605216587]
[2024-11-08 17:50:03,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:50:03,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:50:03,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:50:03,561 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:50:03,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 17:50:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:50:03,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 61 conjuncts are in the unsatisfiable core
[2024-11-08 17:50:03,787 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:50:03,923 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-08 17:50:03,924 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 17:50:04,229 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 17:50:04,239 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 17:50:04,321 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 17:50:04,334 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 27 treesize of output 11
[2024-11-08 17:50:04,440 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 17:50:04,450 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 17:50:04,678 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:50:04,678 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:50:04,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605216587] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:50:04,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:50:04,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 23
[2024-11-08 17:50:04,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439079100]
[2024-11-08 17:50:04,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:50:04,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 17:50:04,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:50:04,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 17:50:04,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506
[2024-11-08 17:50:04,681 INFO L87 Difference]: Start difference. First operand 705 states and 954 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:50:05,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:50:05,550 INFO L93 Difference]: Finished difference Result 828 states and 1097 transitions.
[2024-11-08 17:50:05,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-08 17:50:05,551 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 55
[2024-11-08 17:50:05,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:50:05,556 INFO L225 Difference]: With dead ends: 828
[2024-11-08 17:50:05,556 INFO L226 Difference]: Without dead ends: 828
[2024-11-08 17:50:05,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=110, Invalid=882, Unknown=0, NotChecked=0, Total=992
[2024-11-08 17:50:05,558 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 204 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 17:50:05,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 883 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 17:50:05,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states.
[2024-11-08 17:50:05,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 720.
[2024-11-08 17:50:05,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 658 states have (on average 1.4209726443768997) internal successors, (935), 699 states have internal predecessors, (935), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2024-11-08 17:50:05,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 969 transitions.
[2024-11-08 17:50:05,583 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 969 transitions. Word has length 55
[2024-11-08 17:50:05,584 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:50:05,584 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 969 transitions.
[2024-11-08 17:50:05,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:50:05,584 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 969 transitions.
[2024-11-08 17:50:05,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-08 17:50:05,587 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:50:05,587 INFO L215 NwaCegarLoop]: trace histogram [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]
[2024-11-08 17:50:05,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-08 17:50:05,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:50:05,788 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:50:05,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:50:05,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1035322375, now seen corresponding path program 1 times
[2024-11-08 17:50:05,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:50:05,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179365183]
[2024-11-08 17:50:05,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:50:05,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:50:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:50:08,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:50:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:50:08,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42
[2024-11-08 17:50:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:50:08,048 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:50:08,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:50:08,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179365183]
[2024-11-08 17:50:08,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179365183] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:50:08,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759100872]
[2024-11-08 17:50:08,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:50:08,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:50:08,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:50:08,052 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:50:08,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 17:50:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:50:08,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 48 conjuncts are in the unsatisfiable core
[2024-11-08 17:50:08,291 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:50:08,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-08 17:50:08,798 INFO L349 Elim1Store]: treesize reduction 44, result has 37.1 percent of original size
[2024-11-08 17:50:08,798 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 27 treesize of output 32
[2024-11-08 17:50:09,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9
[2024-11-08 17:50:09,081 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:50:09,082 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:50:09,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759100872] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:50:09,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 17:50:09,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 8] total 24
[2024-11-08 17:50:09,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747214132]
[2024-11-08 17:50:09,360 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:50:09,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-11-08 17:50:09,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:50:09,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-08 17:50:09,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=675, Unknown=0, NotChecked=0, Total=756
[2024-11-08 17:50:09,362 INFO L87 Difference]: Start difference. First operand 720 states and 969 transitions. Second operand has 24 states, 24 states have (on average 4.333333333333333) internal successors, (104), 23 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 17:50:11,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:50:11,790 INFO L93 Difference]: Finished difference Result 1202 states and 1611 transitions.
[2024-11-08 17:50:11,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states.
[2024-11-08 17:50:11,790 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.333333333333333) internal successors, (104), 23 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 56
[2024-11-08 17:50:11,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:50:11,795 INFO L225 Difference]: With dead ends: 1202
[2024-11-08 17:50:11,795 INFO L226 Difference]: Without dead ends: 1202
[2024-11-08 17:50:11,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 59 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=257, Invalid=1905, Unknown=0, NotChecked=0, Total=2162
[2024-11-08 17:50:11,796 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 507 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:50:11,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 1838 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-08 17:50:11,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states.
[2024-11-08 17:50:11,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 963.
[2024-11-08 17:50:11,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 889 states have (on average 1.3869516310461192) internal successors, (1233), 930 states have internal predecessors, (1233), 27 states have call successors, (27), 5 states have call predecessors, (27), 5 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-08 17:50:11,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1287 transitions.
[2024-11-08 17:50:11,827 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1287 transitions. Word has length 56
[2024-11-08 17:50:11,827 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:50:11,827 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1287 transitions.
[2024-11-08 17:50:11,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.333333333333333) internal successors, (104), 23 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 17:50:11,828 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1287 transitions.
[2024-11-08 17:50:11,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-08 17:50:11,829 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:50:11,829 INFO L215 NwaCegarLoop]: trace histogram [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]
[2024-11-08 17:50:11,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-08 17:50:12,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30
[2024-11-08 17:50:12,030 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:50:12,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:50:12,031 INFO L85 PathProgramCache]: Analyzing trace with hash 522765408, now seen corresponding path program 1 times
[2024-11-08 17:50:12,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:50:12,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546621233]
[2024-11-08 17:50:12,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:50:12,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:50:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:50:14,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:50:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:50:14,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-08 17:50:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:50:14,502 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:50:14,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:50:14,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546621233]
[2024-11-08 17:50:14,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546621233] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:50:14,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449583278]
[2024-11-08 17:50:14,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:50:14,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:50:14,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:50:14,506 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:50:14,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-08 17:50:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:50:14,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 85 conjuncts are in the unsatisfiable core
[2024-11-08 17:50:14,765 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:50:14,831 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 17:50:14,840 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 17:50:15,462 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 17:50:15,471 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 17:50:15,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20
[2024-11-08 17:50:15,637 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 36 treesize of output 27
[2024-11-08 17:50:15,929 INFO L349 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size
[2024-11-08 17:50:15,930 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 19 treesize of output 19
[2024-11-08 17:50:15,940 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 22 treesize of output 17
[2024-11-08 17:50:20,385 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 30 treesize of output 12
[2024-11-08 17:50:20,436 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:50:20,436 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:50:20,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449583278] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:50:20,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 17:50:20,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11] total 32
[2024-11-08 17:50:20,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324459966]
[2024-11-08 17:50:20,969 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:50:20,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states
[2024-11-08 17:50:20,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:50:20,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants.
[2024-11-08 17:50:20,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1279, Unknown=1, NotChecked=0, Total=1406
[2024-11-08 17:50:20,974 INFO L87 Difference]: Start difference. First operand 963 states and 1287 transitions. Second operand has 33 states, 32 states have (on average 3.25) internal successors, (104), 30 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 17:50:30,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:50:38,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:50:50,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:51:03,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:51:07,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:51:11,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:51:15,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:51:19,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:51:31,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:51:35,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:51:39,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:51:43,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:51:47,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:51:51,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:52:01,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:52:25,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:52:37,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:52:50,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:52:54,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:52:58,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:53:02,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:53:06,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:53:18,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:53:22,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:53:26,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:53:30,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:53:34,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:53:38,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:53:40,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:53:40,100 INFO L93 Difference]: Finished difference Result 2326 states and 3156 transitions.
[2024-11-08 17:53:40,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states.
[2024-11-08 17:53:40,100 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.25) internal successors, (104), 30 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 57
[2024-11-08 17:53:40,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:53:40,110 INFO L225 Difference]: With dead ends: 2326
[2024-11-08 17:53:40,110 INFO L226 Difference]: Without dead ends: 2326
[2024-11-08 17:53:40,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1778 ImplicationChecksByTransitivity, 89.5s TimeCoverageRelationStatistics Valid=859, Invalid=6092, Unknown=21, NotChecked=0, Total=6972
[2024-11-08 17:53:40,113 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 1081 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 27 mSolverCounterUnsat, 28 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 114.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 2520 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 28 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 115.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:53:40,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 2520 Invalid, 2566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2511 Invalid, 28 Unknown, 0 Unchecked, 115.1s Time]
[2024-11-08 17:53:40,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2326 states.
[2024-11-08 17:53:40,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2326 to 1232.
[2024-11-08 17:53:40,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1146 states have (on average 1.3865619546247818) internal successors, (1589), 1187 states have internal predecessors, (1589), 37 states have call successors, (37), 7 states have call predecessors, (37), 7 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37)
[2024-11-08 17:53:40,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1663 transitions.
[2024-11-08 17:53:40,157 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1663 transitions. Word has length 57
[2024-11-08 17:53:40,158 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:53:40,158 INFO L471 AbstractCegarLoop]: Abstraction has 1232 states and 1663 transitions.
[2024-11-08 17:53:40,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.25) internal successors, (104), 30 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 17:53:40,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1663 transitions.
[2024-11-08 17:53:40,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-08 17:53:40,160 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:53:40,160 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:53:40,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-08 17:53:40,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:53:40,365 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:53:40,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:53:40,366 INFO L85 PathProgramCache]: Analyzing trace with hash 821050715, now seen corresponding path program 1 times
[2024-11-08 17:53:40,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:53:40,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275695804]
[2024-11-08 17:53:40,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:53:40,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:53:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:41,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:53:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:41,676 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:53:41,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:53:41,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275695804]
[2024-11-08 17:53:41,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275695804] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:53:41,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:53:41,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2024-11-08 17:53:41,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010012934]
[2024-11-08 17:53:41,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:53:41,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-08 17:53:41,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:53:41,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-08 17:53:41,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272
[2024-11-08 17:53:41,679 INFO L87 Difference]: Start difference. First operand 1232 states and 1663 transitions. Second operand has 17 states, 16 states have (on average 3.4375) internal successors, (55), 15 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:42,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:53:42,651 INFO L93 Difference]: Finished difference Result 1854 states and 2509 transitions.
[2024-11-08 17:53:42,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2024-11-08 17:53:42,652 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.4375) internal successors, (55), 15 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57
[2024-11-08 17:53:42,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:53:42,658 INFO L225 Difference]: With dead ends: 1854
[2024-11-08 17:53:42,659 INFO L226 Difference]: Without dead ends: 1854
[2024-11-08 17:53:42,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552
[2024-11-08 17:53:42,660 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 480 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 17:53:42,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 1447 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 17:53:42,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states.
[2024-11-08 17:53:42,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1509.
[2024-11-08 17:53:42,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1400 states have (on average 1.387857142857143) internal successors, (1943), 1450 states have internal predecessors, (1943), 57 states have call successors, (57), 11 states have call predecessors, (57), 11 states have return successors, (57), 47 states have call predecessors, (57), 57 states have call successors, (57)
[2024-11-08 17:53:42,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2057 transitions.
[2024-11-08 17:53:42,703 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2057 transitions. Word has length 57
[2024-11-08 17:53:42,704 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:53:42,704 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 2057 transitions.
[2024-11-08 17:53:42,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.4375) internal successors, (55), 15 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:42,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2057 transitions.
[2024-11-08 17:53:42,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-08 17:53:42,706 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:53:42,706 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:53:42,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2024-11-08 17:53:42,706 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:53:42,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:53:42,707 INFO L85 PathProgramCache]: Analyzing trace with hash 821050716, now seen corresponding path program 1 times
[2024-11-08 17:53:42,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:53:42,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912670121]
[2024-11-08 17:53:42,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:53:42,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:53:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:44,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:53:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:44,624 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:53:44,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:53:44,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912670121]
[2024-11-08 17:53:44,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912670121] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:53:44,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:53:44,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17
[2024-11-08 17:53:44,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905705368]
[2024-11-08 17:53:44,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:53:44,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-11-08 17:53:44,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:53:44,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-11-08 17:53:44,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306
[2024-11-08 17:53:44,628 INFO L87 Difference]: Start difference. First operand 1509 states and 2057 transitions. Second operand has 18 states, 17 states have (on average 3.235294117647059) internal successors, (55), 16 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:46,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:53:46,174 INFO L93 Difference]: Finished difference Result 1957 states and 2660 transitions.
[2024-11-08 17:53:46,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2024-11-08 17:53:46,175 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.235294117647059) internal successors, (55), 16 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57
[2024-11-08 17:53:46,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:53:46,182 INFO L225 Difference]: With dead ends: 1957
[2024-11-08 17:53:46,182 INFO L226 Difference]: Without dead ends: 1957
[2024-11-08 17:53:46,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=115, Invalid=697, Unknown=0, NotChecked=0, Total=812
[2024-11-08 17:53:46,184 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 473 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1958 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:53:46,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1958 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-08 17:53:46,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1957 states.
[2024-11-08 17:53:46,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1957 to 1639.
[2024-11-08 17:53:46,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1524 states have (on average 1.4028871391076116) internal successors, (2138), 1576 states have internal predecessors, (2138), 62 states have call successors, (62), 12 states have call predecessors, (62), 12 states have return successors, (62), 50 states have call predecessors, (62), 62 states have call successors, (62)
[2024-11-08 17:53:46,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2262 transitions.
[2024-11-08 17:53:46,228 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2262 transitions. Word has length 57
[2024-11-08 17:53:46,228 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:53:46,228 INFO L471 AbstractCegarLoop]: Abstraction has 1639 states and 2262 transitions.
[2024-11-08 17:53:46,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.235294117647059) internal successors, (55), 16 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:46,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2262 transitions.
[2024-11-08 17:53:46,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-08 17:53:46,230 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:53:46,230 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:53:46,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2024-11-08 17:53:46,231 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:53:46,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:53:46,231 INFO L85 PathProgramCache]: Analyzing trace with hash 821067500, now seen corresponding path program 1 times
[2024-11-08 17:53:46,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:53:46,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789212708]
[2024-11-08 17:53:46,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:53:46,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:53:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:46,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:53:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:46,354 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:53:46,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:53:46,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789212708]
[2024-11-08 17:53:46,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789212708] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:53:46,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385402076]
[2024-11-08 17:53:46,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:53:46,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:53:46,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:53:46,357 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:53:46,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-08 17:53:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:46,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 17:53:46,615 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:53:46,710 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:53:46,710 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:53:46,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385402076] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:53:46,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:53:46,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5
[2024-11-08 17:53:46,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034109407]
[2024-11-08 17:53:46,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:53:46,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:53:46,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:53:46,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:53:46,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:53:46,713 INFO L87 Difference]: Start difference. First operand 1639 states and 2262 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:46,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:53:46,768 INFO L93 Difference]: Finished difference Result 2817 states and 3909 transitions.
[2024-11-08 17:53:46,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:53:46,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57
[2024-11-08 17:53:46,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:53:46,780 INFO L225 Difference]: With dead ends: 2817
[2024-11-08 17:53:46,780 INFO L226 Difference]: Without dead ends: 2817
[2024-11-08 17:53:46,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 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 17:53:46,781 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 238 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:53:46,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 371 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:53:46,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states.
[2024-11-08 17:53:46,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 2311.
[2024-11-08 17:53:46,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2311 states, 2171 states have (on average 1.4122524182404421) internal successors, (3066), 2223 states have internal predecessors, (3066), 87 states have call successors, (87), 12 states have call predecessors, (87), 12 states have return successors, (87), 75 states have call predecessors, (87), 87 states have call successors, (87)
[2024-11-08 17:53:46,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2311 states to 2311 states and 3240 transitions.
[2024-11-08 17:53:46,845 INFO L78 Accepts]: Start accepts. Automaton has 2311 states and 3240 transitions. Word has length 57
[2024-11-08 17:53:46,845 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:53:46,845 INFO L471 AbstractCegarLoop]: Abstraction has 2311 states and 3240 transitions.
[2024-11-08 17:53:46,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:46,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2311 states and 3240 transitions.
[2024-11-08 17:53:46,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-08 17:53:46,847 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:53:46,847 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:53:46,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-08 17:53:47,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:53:47,048 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:53:47,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:53:47,049 INFO L85 PathProgramCache]: Analyzing trace with hash 878309017, now seen corresponding path program 1 times
[2024-11-08 17:53:47,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:53:47,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272292038]
[2024-11-08 17:53:47,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:53:47,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:53:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:47,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:53:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:47,527 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:53:47,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:53:47,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272292038]
[2024-11-08 17:53:47,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272292038] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:53:47,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:53:47,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-11-08 17:53:47,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261777892]
[2024-11-08 17:53:47,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:53:47,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-08 17:53:47,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:53:47,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-08 17:53:47,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110
[2024-11-08 17:53:47,530 INFO L87 Difference]: Start difference. First operand 2311 states and 3240 transitions. Second operand has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:48,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:53:48,123 INFO L93 Difference]: Finished difference Result 3456 states and 4865 transitions.
[2024-11-08 17:53:48,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-08 17:53:48,123 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57
[2024-11-08 17:53:48,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:53:48,138 INFO L225 Difference]: With dead ends: 3456
[2024-11-08 17:53:48,139 INFO L226 Difference]: Without dead ends: 3456
[2024-11-08 17:53:48,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182
[2024-11-08 17:53:48,140 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 206 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 17:53:48,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 1005 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 17:53:48,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3456 states.
[2024-11-08 17:53:48,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3456 to 3015.
[2024-11-08 17:53:48,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3015 states, 2824 states have (on average 1.4008498583569404) internal successors, (3956), 2891 states have internal predecessors, (3956), 132 states have call successors, (132), 18 states have call predecessors, (132), 18 states have return successors, (132), 105 states have call predecessors, (132), 132 states have call successors, (132)
[2024-11-08 17:53:48,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 3015 states and 4220 transitions.
[2024-11-08 17:53:48,219 INFO L78 Accepts]: Start accepts. Automaton has 3015 states and 4220 transitions. Word has length 57
[2024-11-08 17:53:48,219 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:53:48,219 INFO L471 AbstractCegarLoop]: Abstraction has 3015 states and 4220 transitions.
[2024-11-08 17:53:48,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:48,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3015 states and 4220 transitions.
[2024-11-08 17:53:48,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-08 17:53:48,221 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:53:48,221 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:53:48,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2024-11-08 17:53:48,221 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:53:48,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:53:48,222 INFO L85 PathProgramCache]: Analyzing trace with hash 878309018, now seen corresponding path program 1 times
[2024-11-08 17:53:48,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:53:48,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434333960]
[2024-11-08 17:53:48,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:53:48,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:53:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:48,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:53:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:48,985 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:53:48,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:53:48,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434333960]
[2024-11-08 17:53:48,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434333960] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:53:48,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:53:48,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-08 17:53:48,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420011783]
[2024-11-08 17:53:48,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:53:48,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 17:53:48,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:53:48,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 17:53:48,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90
[2024-11-08 17:53:48,991 INFO L87 Difference]: Start difference. First operand 3015 states and 4220 transitions. Second operand has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:49,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:53:49,685 INFO L93 Difference]: Finished difference Result 3717 states and 5260 transitions.
[2024-11-08 17:53:49,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-08 17:53:49,685 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57
[2024-11-08 17:53:49,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:53:49,699 INFO L225 Difference]: With dead ends: 3717
[2024-11-08 17:53:49,699 INFO L226 Difference]: Without dead ends: 3717
[2024-11-08 17:53:49,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156
[2024-11-08 17:53:49,700 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 155 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 17:53:49,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1156 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 17:53:49,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states.
[2024-11-08 17:53:49,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3371.
[2024-11-08 17:53:49,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3371 states, 3168 states have (on average 1.4255050505050506) internal successors, (4516), 3239 states have internal predecessors, (4516), 142 states have call successors, (142), 20 states have call predecessors, (142), 20 states have return successors, (142), 111 states have call predecessors, (142), 142 states have call successors, (142)
[2024-11-08 17:53:49,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3371 states to 3371 states and 4800 transitions.
[2024-11-08 17:53:49,799 INFO L78 Accepts]: Start accepts. Automaton has 3371 states and 4800 transitions. Word has length 57
[2024-11-08 17:53:49,800 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:53:49,800 INFO L471 AbstractCegarLoop]: Abstraction has 3371 states and 4800 transitions.
[2024-11-08 17:53:49,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:49,800 INFO L276 IsEmpty]: Start isEmpty. Operand 3371 states and 4800 transitions.
[2024-11-08 17:53:49,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2024-11-08 17:53:49,802 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:53:49,802 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:53:49,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36
[2024-11-08 17:53:49,802 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:53:49,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:53:49,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1977580937, now seen corresponding path program 1 times
[2024-11-08 17:53:49,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:53:49,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875370843]
[2024-11-08 17:53:49,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:53:49,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:53:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:50,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:53:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:50,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-11-08 17:53:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:50,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:53:50,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:53:50,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875370843]
[2024-11-08 17:53:50,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875370843] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:53:50,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:53:50,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2024-11-08 17:53:50,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084057330]
[2024-11-08 17:53:50,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:53:50,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-08 17:53:50,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:53:50,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-08 17:53:50,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210
[2024-11-08 17:53:50,736 INFO L87 Difference]: Start difference. First operand 3371 states and 4800 transitions. Second operand has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:53:51,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:53:51,635 INFO L93 Difference]: Finished difference Result 3974 states and 5682 transitions.
[2024-11-08 17:53:51,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-11-08 17:53:51,636 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 58
[2024-11-08 17:53:51,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:53:51,658 INFO L225 Difference]: With dead ends: 3974
[2024-11-08 17:53:51,658 INFO L226 Difference]: Without dead ends: 3962
[2024-11-08 17:53:51,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462
[2024-11-08 17:53:51,659 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 276 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 17:53:51,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 1584 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 17:53:51,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3962 states.
[2024-11-08 17:53:51,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3962 to 3649.
[2024-11-08 17:53:51,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3649 states, 3434 states have (on average 1.4344787419918463) internal successors, (4926), 3509 states have internal predecessors, (4926), 152 states have call successors, (152), 22 states have call predecessors, (152), 22 states have return successors, (152), 117 states have call predecessors, (152), 152 states have call successors, (152)
[2024-11-08 17:53:51,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3649 states to 3649 states and 5230 transitions.
[2024-11-08 17:53:51,757 INFO L78 Accepts]: Start accepts. Automaton has 3649 states and 5230 transitions. Word has length 58
[2024-11-08 17:53:51,757 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:53:51,757 INFO L471 AbstractCegarLoop]: Abstraction has 3649 states and 5230 transitions.
[2024-11-08 17:53:51,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:53:51,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3649 states and 5230 transitions.
[2024-11-08 17:53:51,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-11-08 17:53:51,760 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:53:51,760 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:53:51,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37
[2024-11-08 17:53:51,761 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:53:51,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:53:51,761 INFO L85 PathProgramCache]: Analyzing trace with hash 2087377429, now seen corresponding path program 1 times
[2024-11-08 17:53:51,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:53:51,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935128160]
[2024-11-08 17:53:51,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:53:51,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:53:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:52,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:53:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:52,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-11-08 17:53:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:52,099 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:53:52,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:53:52,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935128160]
[2024-11-08 17:53:52,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935128160] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:53:52,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:53:52,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 17:53:52,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61847692]
[2024-11-08 17:53:52,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:53:52,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 17:53:52,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:53:52,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 17:53:52,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:53:52,103 INFO L87 Difference]: Start difference. First operand 3649 states and 5230 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:53:52,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:53:52,333 INFO L93 Difference]: Finished difference Result 3675 states and 5120 transitions.
[2024-11-08 17:53:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:53:52,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 60
[2024-11-08 17:53:52,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:53:52,345 INFO L225 Difference]: With dead ends: 3675
[2024-11-08 17:53:52,345 INFO L226 Difference]: Without dead ends: 3675
[2024-11-08 17:53:52,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:53:52,346 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 199 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:53:52,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 314 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:53:52,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3675 states.
[2024-11-08 17:53:52,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3675 to 3645.
[2024-11-08 17:53:52,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3645 states, 3434 states have (on average 1.3937099592312172) internal successors, (4786), 3505 states have internal predecessors, (4786), 152 states have call successors, (152), 22 states have call predecessors, (152), 22 states have return successors, (152), 117 states have call predecessors, (152), 152 states have call successors, (152)
[2024-11-08 17:53:52,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3645 states to 3645 states and 5090 transitions.
[2024-11-08 17:53:52,424 INFO L78 Accepts]: Start accepts. Automaton has 3645 states and 5090 transitions. Word has length 60
[2024-11-08 17:53:52,425 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:53:52,425 INFO L471 AbstractCegarLoop]: Abstraction has 3645 states and 5090 transitions.
[2024-11-08 17:53:52,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:53:52,425 INFO L276 IsEmpty]: Start isEmpty. Operand 3645 states and 5090 transitions.
[2024-11-08 17:53:52,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-11-08 17:53:52,426 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:53:52,427 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:53:52,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38
[2024-11-08 17:53:52,427 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:53:52,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:53:52,427 INFO L85 PathProgramCache]: Analyzing trace with hash 83367026, now seen corresponding path program 1 times
[2024-11-08 17:53:52,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:53:52,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514207809]
[2024-11-08 17:53:52,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:53:52,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:53:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:53,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:53:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:53,649 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:53:53,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:53:53,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514207809]
[2024-11-08 17:53:53,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514207809] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:53:53,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:53:53,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2024-11-08 17:53:53,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672108011]
[2024-11-08 17:53:53,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:53:53,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-11-08 17:53:53,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:53:53,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-11-08 17:53:53,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240
[2024-11-08 17:53:53,654 INFO L87 Difference]: Start difference. First operand 3645 states and 5090 transitions. Second operand has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:54,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:53:54,600 INFO L93 Difference]: Finished difference Result 4003 states and 5559 transitions.
[2024-11-08 17:53:54,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2024-11-08 17:53:54,601 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60
[2024-11-08 17:53:54,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:53:54,610 INFO L225 Difference]: With dead ends: 4003
[2024-11-08 17:53:54,610 INFO L226 Difference]: Without dead ends: 4003
[2024-11-08 17:53:54,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506
[2024-11-08 17:53:54,611 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 312 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 17:53:54,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 1427 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 17:53:54,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4003 states.
[2024-11-08 17:53:54,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4003 to 3663.
[2024-11-08 17:53:54,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3663 states, 3452 states have (on average 1.3933951332560834) internal successors, (4810), 3523 states have internal predecessors, (4810), 152 states have call successors, (152), 22 states have call predecessors, (152), 22 states have return successors, (152), 117 states have call predecessors, (152), 152 states have call successors, (152)
[2024-11-08 17:53:54,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3663 states to 3663 states and 5114 transitions.
[2024-11-08 17:53:54,693 INFO L78 Accepts]: Start accepts. Automaton has 3663 states and 5114 transitions. Word has length 60
[2024-11-08 17:53:54,693 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:53:54,694 INFO L471 AbstractCegarLoop]: Abstraction has 3663 states and 5114 transitions.
[2024-11-08 17:53:54,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:54,694 INFO L276 IsEmpty]: Start isEmpty. Operand 3663 states and 5114 transitions.
[2024-11-08 17:53:54,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-11-08 17:53:54,695 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:53:54,695 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:53:54,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39
[2024-11-08 17:53:54,696 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:53:54,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:53:54,697 INFO L85 PathProgramCache]: Analyzing trace with hash 763425396, now seen corresponding path program 1 times
[2024-11-08 17:53:54,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:53:54,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719081620]
[2024-11-08 17:53:54,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:53:54,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:53:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:55,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:53:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:55,139 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:53:55,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:53:55,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719081620]
[2024-11-08 17:53:55,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719081620] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:53:55,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:53:55,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-08 17:53:55,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484594609]
[2024-11-08 17:53:55,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:53:55,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 17:53:55,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:53:55,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 17:53:55,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90
[2024-11-08 17:53:55,141 INFO L87 Difference]: Start difference. First operand 3663 states and 5114 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:55,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:53:55,637 INFO L93 Difference]: Finished difference Result 3991 states and 5553 transitions.
[2024-11-08 17:53:55,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-08 17:53:55,638 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60
[2024-11-08 17:53:55,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:53:55,648 INFO L225 Difference]: With dead ends: 3991
[2024-11-08 17:53:55,648 INFO L226 Difference]: Without dead ends: 3991
[2024-11-08 17:53:55,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156
[2024-11-08 17:53:55,649 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 152 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:53:55,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1033 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 17:53:55,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3991 states.
[2024-11-08 17:53:55,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3991 to 3646.
[2024-11-08 17:53:55,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3435 states have (on average 1.3935953420669578) internal successors, (4787), 3506 states have internal predecessors, (4787), 152 states have call successors, (152), 22 states have call predecessors, (152), 22 states have return successors, (152), 117 states have call predecessors, (152), 152 states have call successors, (152)
[2024-11-08 17:53:55,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 5091 transitions.
[2024-11-08 17:53:55,747 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 5091 transitions. Word has length 60
[2024-11-08 17:53:55,747 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:53:55,748 INFO L471 AbstractCegarLoop]: Abstraction has 3646 states and 5091 transitions.
[2024-11-08 17:53:55,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:55,748 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 5091 transitions.
[2024-11-08 17:53:55,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-11-08 17:53:55,750 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:53:55,750 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:53:55,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40
[2024-11-08 17:53:55,750 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:53:55,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:53:55,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1770339612, now seen corresponding path program 1 times
[2024-11-08 17:53:55,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:53:55,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026048461]
[2024-11-08 17:53:55,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:53:55,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:53:55,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:55,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:53:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:55,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-11-08 17:53:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:55,989 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 17:53:55,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:53:55,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026048461]
[2024-11-08 17:53:55,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026048461] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:53:55,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:53:55,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 17:53:55,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127895406]
[2024-11-08 17:53:55,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:53:55,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 17:53:55,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:53:55,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 17:53:55,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:53:55,992 INFO L87 Difference]: Start difference. First operand 3646 states and 5091 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-08 17:53:56,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:53:56,061 INFO L93 Difference]: Finished difference Result 3650 states and 5085 transitions.
[2024-11-08 17:53:56,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 17:53:56,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 63
[2024-11-08 17:53:56,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:53:56,070 INFO L225 Difference]: With dead ends: 3650
[2024-11-08 17:53:56,070 INFO L226 Difference]: Without dead ends: 3650
[2024-11-08 17:53:56,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:53:56,071 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 48 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:53:56,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 673 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:53:56,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3650 states.
[2024-11-08 17:53:56,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3650 to 3644.
[2024-11-08 17:53:56,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3644 states, 3435 states have (on average 1.3901018922852983) internal successors, (4775), 3504 states have internal predecessors, (4775), 152 states have call successors, (152), 22 states have call predecessors, (152), 22 states have return successors, (152), 117 states have call predecessors, (152), 152 states have call successors, (152)
[2024-11-08 17:53:56,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3644 states to 3644 states and 5079 transitions.
[2024-11-08 17:53:56,139 INFO L78 Accepts]: Start accepts. Automaton has 3644 states and 5079 transitions. Word has length 63
[2024-11-08 17:53:56,139 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:53:56,139 INFO L471 AbstractCegarLoop]: Abstraction has 3644 states and 5079 transitions.
[2024-11-08 17:53:56,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-08 17:53:56,140 INFO L276 IsEmpty]: Start isEmpty. Operand 3644 states and 5079 transitions.
[2024-11-08 17:53:56,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-11-08 17:53:56,141 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:53:56,141 INFO L215 NwaCegarLoop]: trace histogram [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 17:53:56,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41
[2024-11-08 17:53:56,142 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:53:56,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:53:56,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1472470063, now seen corresponding path program 1 times
[2024-11-08 17:53:56,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:53:56,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094587194]
[2024-11-08 17:53:56,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:53:56,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:53:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:56,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:53:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:56,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-08 17:53:56,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:56,265 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-08 17:53:56,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:53:56,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094587194]
[2024-11-08 17:53:56,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094587194] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:53:56,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:53:56,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:53:56,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841690050]
[2024-11-08 17:53:56,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:53:56,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:53:56,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:53:56,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:53:56,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:53:56,269 INFO L87 Difference]: Start difference. First operand 3644 states and 5079 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:56,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:53:56,304 INFO L93 Difference]: Finished difference Result 3850 states and 5348 transitions.
[2024-11-08 17:53:56,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:53:56,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63
[2024-11-08 17:53:56,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:53:56,314 INFO L225 Difference]: With dead ends: 3850
[2024-11-08 17:53:56,314 INFO L226 Difference]: Without dead ends: 3850
[2024-11-08 17:53:56,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:53:56,315 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 69 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:53:56,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 501 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:53:56,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states.
[2024-11-08 17:53:56,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 3656.
[2024-11-08 17:53:56,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3656 states, 3447 states have (on average 1.3893240498984625) internal successors, (4789), 3516 states have internal predecessors, (4789), 152 states have call successors, (152), 22 states have call predecessors, (152), 22 states have return successors, (152), 117 states have call predecessors, (152), 152 states have call successors, (152)
[2024-11-08 17:53:56,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 5093 transitions.
[2024-11-08 17:53:56,388 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 5093 transitions. Word has length 63
[2024-11-08 17:53:56,388 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:53:56,390 INFO L471 AbstractCegarLoop]: Abstraction has 3656 states and 5093 transitions.
[2024-11-08 17:53:56,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:56,391 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 5093 transitions.
[2024-11-08 17:53:56,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-11-08 17:53:56,392 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:53:56,392 INFO L215 NwaCegarLoop]: trace histogram [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 17:53:56,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42
[2024-11-08 17:53:56,393 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:53:56,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:53:56,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1472470125, now seen corresponding path program 1 times
[2024-11-08 17:53:56,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:53:56,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752067016]
[2024-11-08 17:53:56,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:53:56,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:53:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:56,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:53:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:56,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-08 17:53:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:56,696 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-11-08 17:53:56,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:53:56,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752067016]
[2024-11-08 17:53:56,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752067016] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:53:56,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:53:56,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:53:56,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418466624]
[2024-11-08 17:53:56,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:53:56,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:53:56,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:53:56,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:53:56,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:53:56,699 INFO L87 Difference]: Start difference. First operand 3656 states and 5093 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:57,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:53:57,023 INFO L93 Difference]: Finished difference Result 3652 states and 5049 transitions.
[2024-11-08 17:53:57,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:53:57,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63
[2024-11-08 17:53:57,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:53:57,032 INFO L225 Difference]: With dead ends: 3652
[2024-11-08 17:53:57,032 INFO L226 Difference]: Without dead ends: 3652
[2024-11-08 17:53:57,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:53:57,033 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 32 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:53:57,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 556 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:53:57,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states.
[2024-11-08 17:53:57,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3652.
[2024-11-08 17:53:57,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 3447 states have (on average 1.376559326950972) internal successors, (4745), 3512 states have internal predecessors, (4745), 152 states have call successors, (152), 22 states have call predecessors, (152), 22 states have return successors, (152), 117 states have call predecessors, (152), 152 states have call successors, (152)
[2024-11-08 17:53:57,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5049 transitions.
[2024-11-08 17:53:57,102 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5049 transitions. Word has length 63
[2024-11-08 17:53:57,102 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:53:57,103 INFO L471 AbstractCegarLoop]: Abstraction has 3652 states and 5049 transitions.
[2024-11-08 17:53:57,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:57,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5049 transitions.
[2024-11-08 17:53:57,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-11-08 17:53:57,105 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:53:57,106 INFO L215 NwaCegarLoop]: trace histogram [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 17:53:57,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43
[2024-11-08 17:53:57,106 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:53:57,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:53:57,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1472470124, now seen corresponding path program 1 times
[2024-11-08 17:53:57,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:53:57,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517685864]
[2024-11-08 17:53:57,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:53:57,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:53:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:57,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:53:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:57,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-08 17:53:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:57,259 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-11-08 17:53:57,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:53:57,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517685864]
[2024-11-08 17:53:57,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517685864] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:53:57,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:53:57,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:53:57,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017055616]
[2024-11-08 17:53:57,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:53:57,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:53:57,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:53:57,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:53:57,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:53:57,262 INFO L87 Difference]: Start difference. First operand 3652 states and 5049 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:57,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:53:57,528 INFO L93 Difference]: Finished difference Result 3652 states and 5044 transitions.
[2024-11-08 17:53:57,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:53:57,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63
[2024-11-08 17:53:57,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:53:57,537 INFO L225 Difference]: With dead ends: 3652
[2024-11-08 17:53:57,537 INFO L226 Difference]: Without dead ends: 3652
[2024-11-08 17:53:57,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:53:57,538 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 32 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:53:57,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 532 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:53:57,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states.
[2024-11-08 17:53:57,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3652.
[2024-11-08 17:53:57,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 3447 states have (on average 1.3751087902523933) internal successors, (4740), 3512 states have internal predecessors, (4740), 152 states have call successors, (152), 22 states have call predecessors, (152), 22 states have return successors, (152), 117 states have call predecessors, (152), 152 states have call successors, (152)
[2024-11-08 17:53:57,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5044 transitions.
[2024-11-08 17:53:57,605 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5044 transitions. Word has length 63
[2024-11-08 17:53:57,605 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:53:57,605 INFO L471 AbstractCegarLoop]: Abstraction has 3652 states and 5044 transitions.
[2024-11-08 17:53:57,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:53:57,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5044 transitions.
[2024-11-08 17:53:57,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-08 17:53:57,607 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:53:57,607 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:53:57,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44
[2024-11-08 17:53:57,608 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:53:57,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:53:57,609 INFO L85 PathProgramCache]: Analyzing trace with hash 954024219, now seen corresponding path program 1 times
[2024-11-08 17:53:57,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:53:57,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134976020]
[2024-11-08 17:53:57,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:53:57,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:53:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:58,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:53:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:58,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-11-08 17:53:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:58,287 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:53:58,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:53:58,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134976020]
[2024-11-08 17:53:58,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134976020] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:53:58,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936945981]
[2024-11-08 17:53:58,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:53:58,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:53:58,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:53:58,291 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:53:58,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-08 17:53:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:53:58,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 33 conjuncts are in the unsatisfiable core
[2024-11-08 17:53:58,607 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:53:59,001 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 17:53:59,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20
[2024-11-08 17:53:59,338 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:53:59,338 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:53:59,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936945981] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:53:59,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:53:59,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 18
[2024-11-08 17:53:59,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754954367]
[2024-11-08 17:53:59,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:53:59,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-08 17:53:59,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:53:59,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-08 17:53:59,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342
[2024-11-08 17:53:59,341 INFO L87 Difference]: Start difference. First operand 3652 states and 5044 transitions. Second operand has 11 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:53:59,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:53:59,765 INFO L93 Difference]: Finished difference Result 3982 states and 5439 transitions.
[2024-11-08 17:53:59,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-08 17:53:59,766 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64
[2024-11-08 17:53:59,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:53:59,776 INFO L225 Difference]: With dead ends: 3982
[2024-11-08 17:53:59,776 INFO L226 Difference]: Without dead ends: 3982
[2024-11-08 17:53:59,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462
[2024-11-08 17:53:59,777 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 247 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:53:59,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 857 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:53:59,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3982 states.
[2024-11-08 17:53:59,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3982 to 3652.
[2024-11-08 17:53:59,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 3447 states have (on average 1.371627502175805) internal successors, (4728), 3512 states have internal predecessors, (4728), 152 states have call successors, (152), 22 states have call predecessors, (152), 22 states have return successors, (152), 117 states have call predecessors, (152), 152 states have call successors, (152)
[2024-11-08 17:53:59,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5032 transitions.
[2024-11-08 17:53:59,841 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5032 transitions. Word has length 64
[2024-11-08 17:53:59,842 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:53:59,842 INFO L471 AbstractCegarLoop]: Abstraction has 3652 states and 5032 transitions.
[2024-11-08 17:53:59,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:53:59,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5032 transitions.
[2024-11-08 17:53:59,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-08 17:53:59,844 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:53:59,844 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:53:59,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-08 17:54:00,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45
[2024-11-08 17:54:00,048 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:54:00,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:54:00,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1642921568, now seen corresponding path program 1 times
[2024-11-08 17:54:00,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:54:00,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301012468]
[2024-11-08 17:54:00,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:54:00,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:54:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:54:00,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:54:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:54:00,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-08 17:54:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:54:00,248 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-11-08 17:54:00,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:54:00,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301012468]
[2024-11-08 17:54:00,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301012468] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:54:00,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:54:00,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:54:00,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416711601]
[2024-11-08 17:54:00,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:54:00,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:54:00,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:54:00,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:54:00,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:54:00,251 INFO L87 Difference]: Start difference. First operand 3652 states and 5032 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:54:00,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:54:00,516 INFO L93 Difference]: Finished difference Result 3700 states and 5062 transitions.
[2024-11-08 17:54:00,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 17:54:00,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64
[2024-11-08 17:54:00,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:54:00,528 INFO L225 Difference]: With dead ends: 3700
[2024-11-08 17:54:00,528 INFO L226 Difference]: Without dead ends: 3700
[2024-11-08 17:54:00,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:54:00,529 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 16 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:54:00,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 540 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:54:00,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3700 states.
[2024-11-08 17:54:00,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3700 to 3650.
[2024-11-08 17:54:00,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3650 states, 3447 states have (on average 1.3658253553814912) internal successors, (4708), 3510 states have internal predecessors, (4708), 152 states have call successors, (152), 22 states have call predecessors, (152), 22 states have return successors, (152), 117 states have call predecessors, (152), 152 states have call successors, (152)
[2024-11-08 17:54:00,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 5012 transitions.
[2024-11-08 17:54:00,600 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 5012 transitions. Word has length 64
[2024-11-08 17:54:00,601 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:54:00,601 INFO L471 AbstractCegarLoop]: Abstraction has 3650 states and 5012 transitions.
[2024-11-08 17:54:00,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:54:00,601 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 5012 transitions.
[2024-11-08 17:54:00,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-08 17:54:00,603 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:54:00,603 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:54:00,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46
[2024-11-08 17:54:00,603 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:54:00,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:54:00,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1642921567, now seen corresponding path program 1 times
[2024-11-08 17:54:00,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:54:00,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219162558]
[2024-11-08 17:54:00,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:54:00,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:54:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:54:02,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:54:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:54:02,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-08 17:54:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:54:02,248 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:54:02,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:54:02,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219162558]
[2024-11-08 17:54:02,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219162558] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:54:02,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385330592]
[2024-11-08 17:54:02,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:54:02,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:54:02,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:54:02,251 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:54:02,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-08 17:54:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:54:02,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 72 conjuncts are in the unsatisfiable core
[2024-11-08 17:54:02,579 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:54:03,012 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 17:54:03,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20
[2024-11-08 17:54:14,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9
[2024-11-08 17:54:14,546 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:54:14,546 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:54:14,778 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:54:14,778 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 41 treesize of output 45
[2024-11-08 17:54:15,232 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 86 treesize of output 82
[2024-11-08 17:54:16,019 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:54:16,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385330592] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:54:16,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:54:16,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14, 14] total 47
[2024-11-08 17:54:16,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533642625]
[2024-11-08 17:54:16,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:54:16,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states
[2024-11-08 17:54:16,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:54:16,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants.
[2024-11-08 17:54:16,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=2084, Unknown=2, NotChecked=0, Total=2256
[2024-11-08 17:54:16,023 INFO L87 Difference]: Start difference. First operand 3650 states and 5012 transitions. Second operand has 48 states, 47 states have (on average 3.74468085106383) internal successors, (176), 47 states have internal predecessors, (176), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:54:20,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:54:32,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:54:36,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:54:40,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:54:44,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:54:48,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:54:52,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:54:56,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:55:01,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:55:05,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:55:17,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:55:29,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:55:33,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:55:37,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:55:41,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:55:54,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:56:14,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:56:18,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:56:22,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:56:26,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:56:32,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:56:36,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:56:37,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:56:37,071 INFO L93 Difference]: Finished difference Result 5004 states and 6767 transitions.
[2024-11-08 17:56:37,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states.
[2024-11-08 17:56:37,072 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.74468085106383) internal successors, (176), 47 states have internal predecessors, (176), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 64
[2024-11-08 17:56:37,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:56:37,081 INFO L225 Difference]: With dead ends: 5004
[2024-11-08 17:56:37,081 INFO L226 Difference]: Without dead ends: 5004
[2024-11-08 17:56:37,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2452 ImplicationChecksByTransitivity, 63.7s TimeCoverageRelationStatistics Valid=1186, Invalid=8306, Unknown=14, NotChecked=0, Total=9506
[2024-11-08 17:56:37,084 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 1298 mSDsluCounter, 2876 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 58 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.6s IncrementalHoareTripleChecker+Time
[2024-11-08 17:56:37,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 2998 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1582 Invalid, 22 Unknown, 0 Unchecked, 89.6s Time]
[2024-11-08 17:56:37,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5004 states.
[2024-11-08 17:56:37,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5004 to 4066.
[2024-11-08 17:56:37,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4066 states, 3852 states have (on average 1.374091381100727) internal successors, (5293), 3916 states have internal predecessors, (5293), 162 states have call successors, (162), 24 states have call predecessors, (162), 24 states have return successors, (162), 125 states have call predecessors, (162), 162 states have call successors, (162)
[2024-11-08 17:56:37,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4066 states to 4066 states and 5617 transitions.
[2024-11-08 17:56:37,146 INFO L78 Accepts]: Start accepts. Automaton has 4066 states and 5617 transitions. Word has length 64
[2024-11-08 17:56:37,147 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:56:37,147 INFO L471 AbstractCegarLoop]: Abstraction has 4066 states and 5617 transitions.
[2024-11-08 17:56:37,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.74468085106383) internal successors, (176), 47 states have internal predecessors, (176), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:56:37,147 INFO L276 IsEmpty]: Start isEmpty. Operand 4066 states and 5617 transitions.
[2024-11-08 17:56:37,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-08 17:56:37,149 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:56:37,149 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:56:37,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2024-11-08 17:56:37,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47
[2024-11-08 17:56:37,350 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:56:37,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:56:37,351 INFO L85 PathProgramCache]: Analyzing trace with hash -374231642, now seen corresponding path program 1 times
[2024-11-08 17:56:37,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:56:37,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860023499]
[2024-11-08 17:56:37,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:56:37,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:56:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:56:37,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:56:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:56:37,453 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:56:37,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:56:37,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860023499]
[2024-11-08 17:56:37,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860023499] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:56:37,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382457724]
[2024-11-08 17:56:37,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:56:37,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:56:37,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:56:37,457 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:56:37,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-08 17:56:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:56:37,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 17:56:37,706 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:56:37,797 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:56:37,797 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:56:37,899 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:56:37,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382457724] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:56:37,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:56:37,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 5
[2024-11-08 17:56:37,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376213266]
[2024-11-08 17:56:37,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:56:37,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:56:37,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:56:37,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:56:37,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:56:37,902 INFO L87 Difference]: Start difference. First operand 4066 states and 5617 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:56:37,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:56:37,968 INFO L93 Difference]: Finished difference Result 10061 states and 13796 transitions.
[2024-11-08 17:56:37,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:56:37,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64
[2024-11-08 17:56:37,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:56:37,987 INFO L225 Difference]: With dead ends: 10061
[2024-11-08 17:56:37,988 INFO L226 Difference]: Without dead ends: 10061
[2024-11-08 17:56:37,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 128 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:56:37,988 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 385 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:56:37,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 723 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:56:37,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10061 states.
[2024-11-08 17:56:38,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10061 to 7405.
[2024-11-08 17:56:38,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7405 states, 7057 states have (on average 1.3749468612724953) internal successors, (9703), 7148 states have internal predecessors, (9703), 296 states have call successors, (296), 24 states have call predecessors, (296), 24 states have return successors, (296), 232 states have call predecessors, (296), 296 states have call successors, (296)
[2024-11-08 17:56:38,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7405 states to 7405 states and 10295 transitions.
[2024-11-08 17:56:38,121 INFO L78 Accepts]: Start accepts. Automaton has 7405 states and 10295 transitions. Word has length 64
[2024-11-08 17:56:38,122 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:56:38,122 INFO L471 AbstractCegarLoop]: Abstraction has 7405 states and 10295 transitions.
[2024-11-08 17:56:38,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:56:38,122 INFO L276 IsEmpty]: Start isEmpty. Operand 7405 states and 10295 transitions.
[2024-11-08 17:56:38,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-08 17:56:38,124 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:56:38,124 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:56:38,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-11-08 17:56:38,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48
[2024-11-08 17:56:38,325 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:56:38,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:56:38,325 INFO L85 PathProgramCache]: Analyzing trace with hash -374214857, now seen corresponding path program 1 times
[2024-11-08 17:56:38,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:56:38,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884066090]
[2024-11-08 17:56:38,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:56:38,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:56:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:56:39,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:56:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:56:39,385 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:56:39,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:56:39,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884066090]
[2024-11-08 17:56:39,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884066090] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:56:39,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114490757]
[2024-11-08 17:56:39,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:56:39,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:56:39,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:56:39,388 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:56:39,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-08 17:56:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:56:39,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 34 conjuncts are in the unsatisfiable core
[2024-11-08 17:56:39,653 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:56:40,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:56:40,445 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 30
[2024-11-08 17:56:41,047 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:56:41,048 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:56:41,049 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 20
[2024-11-08 17:56:41,084 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 13 treesize of output 9
[2024-11-08 17:56:41,135 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:56:41,135 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:56:41,288 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 106 treesize of output 102
[2024-11-08 17:56:43,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114490757] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:56:43,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 17:56:43,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12] total 27
[2024-11-08 17:56:43,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979038721]
[2024-11-08 17:56:43,684 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:56:43,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states
[2024-11-08 17:56:43,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:56:43,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2024-11-08 17:56:43,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1123, Unknown=0, NotChecked=0, Total=1260
[2024-11-08 17:56:43,686 INFO L87 Difference]: Start difference. First operand 7405 states and 10295 transitions. Second operand has 28 states, 27 states have (on average 4.333333333333333) internal successors, (117), 26 states have internal predecessors, (117), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:56:50,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:56:56,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:56:56,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:56:56,824 INFO L93 Difference]: Finished difference Result 7625 states and 10583 transitions.
[2024-11-08 17:56:56,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-08 17:56:56,825 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 4.333333333333333) internal successors, (117), 26 states have internal predecessors, (117), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64
[2024-11-08 17:56:56,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:56:56,840 INFO L225 Difference]: With dead ends: 7625
[2024-11-08 17:56:56,841 INFO L226 Difference]: Without dead ends: 7613
[2024-11-08 17:56:56,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=256, Invalid=2000, Unknown=0, NotChecked=0, Total=2256
[2024-11-08 17:56:56,842 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 441 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 23 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time
[2024-11-08 17:56:56,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 2392 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1384 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time]
[2024-11-08 17:56:56,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7613 states.
[2024-11-08 17:56:56,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7613 to 7430.
[2024-11-08 17:56:56,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7430 states, 7082 states have (on average 1.3750353007624965) internal successors, (9738), 7173 states have internal predecessors, (9738), 296 states have call successors, (296), 24 states have call predecessors, (296), 24 states have return successors, (296), 232 states have call predecessors, (296), 296 states have call successors, (296)
[2024-11-08 17:56:56,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 10330 transitions.
[2024-11-08 17:56:56,964 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 10330 transitions. Word has length 64
[2024-11-08 17:56:56,964 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:56:56,965 INFO L471 AbstractCegarLoop]: Abstraction has 7430 states and 10330 transitions.
[2024-11-08 17:56:56,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 4.333333333333333) internal successors, (117), 26 states have internal predecessors, (117), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:56:56,965 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 10330 transitions.
[2024-11-08 17:56:56,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-08 17:56:56,966 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:56:56,967 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:56:56,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2024-11-08 17:56:57,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49
[2024-11-08 17:56:57,168 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:56:57,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:56:57,168 INFO L85 PathProgramCache]: Analyzing trace with hash -961020871, now seen corresponding path program 1 times
[2024-11-08 17:56:57,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:56:57,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118890021]
[2024-11-08 17:56:57,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:56:57,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:56:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:56:57,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:56:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:56:57,786 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:56:57,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:56:57,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118890021]
[2024-11-08 17:56:57,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118890021] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:56:57,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200580438]
[2024-11-08 17:56:57,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:56:57,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:56:57,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:56:57,788 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:56:57,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-08 17:56:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:56:58,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 40 conjuncts are in the unsatisfiable core
[2024-11-08 17:56:58,055 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:56:58,802 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 17:56:59,214 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:56:59,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 17
[2024-11-08 17:56:59,255 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 13 treesize of output 9
[2024-11-08 17:56:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:56:59,307 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:56:59,437 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 44 treesize of output 38
[2024-11-08 17:57:05,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200580438] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:57:05,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 17:57:05,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20
[2024-11-08 17:57:05,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775268601]
[2024-11-08 17:57:05,279 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:57:05,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2024-11-08 17:57:05,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:57:05,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2024-11-08 17:57:05,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=670, Unknown=1, NotChecked=0, Total=756
[2024-11-08 17:57:05,280 INFO L87 Difference]: Start difference. First operand 7430 states and 10330 transitions. Second operand has 21 states, 20 states have (on average 5.85) internal successors, (117), 21 states have internal predecessors, (117), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:57:06,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:57:06,940 INFO L93 Difference]: Finished difference Result 7616 states and 10573 transitions.
[2024-11-08 17:57:06,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-11-08 17:57:06,941 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 5.85) internal successors, (117), 21 states have internal predecessors, (117), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64
[2024-11-08 17:57:06,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:57:06,956 INFO L225 Difference]: With dead ends: 7616
[2024-11-08 17:57:06,956 INFO L226 Difference]: Without dead ends: 7602
[2024-11-08 17:57:06,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=132, Invalid=1057, Unknown=1, NotChecked=0, Total=1190
[2024-11-08 17:57:06,957 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 242 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:57:06,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 2083 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-08 17:57:06,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7602 states.
[2024-11-08 17:57:07,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7602 to 7428.
[2024-11-08 17:57:07,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7428 states, 7080 states have (on average 1.3748587570621469) internal successors, (9734), 7171 states have internal predecessors, (9734), 296 states have call successors, (296), 24 states have call predecessors, (296), 24 states have return successors, (296), 232 states have call predecessors, (296), 296 states have call successors, (296)
[2024-11-08 17:57:07,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7428 states to 7428 states and 10326 transitions.
[2024-11-08 17:57:07,064 INFO L78 Accepts]: Start accepts. Automaton has 7428 states and 10326 transitions. Word has length 64
[2024-11-08 17:57:07,064 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:57:07,064 INFO L471 AbstractCegarLoop]: Abstraction has 7428 states and 10326 transitions.
[2024-11-08 17:57:07,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 5.85) internal successors, (117), 21 states have internal predecessors, (117), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:57:07,064 INFO L276 IsEmpty]: Start isEmpty. Operand 7428 states and 10326 transitions.
[2024-11-08 17:57:07,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2024-11-08 17:57:07,065 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:57:07,066 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:57:07,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-11-08 17:57:07,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50
[2024-11-08 17:57:07,267 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:57:07,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:57:07,267 INFO L85 PathProgramCache]: Analyzing trace with hash -489312028, now seen corresponding path program 1 times
[2024-11-08 17:57:07,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:57:07,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565271287]
[2024-11-08 17:57:07,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:57:07,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:57:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:08,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:57:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:08,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-11-08 17:57:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:08,746 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:57:08,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:57:08,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565271287]
[2024-11-08 17:57:08,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565271287] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:57:08,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390408901]
[2024-11-08 17:57:08,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:57:08,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:57:08,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:57:08,749 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:57:08,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-08 17:57:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:09,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 35 conjuncts are in the unsatisfiable core
[2024-11-08 17:57:09,063 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:57:09,335 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 17:57:09,345 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 11 treesize of output 7
[2024-11-08 17:57:09,439 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 17 treesize of output 17
[2024-11-08 17:57:09,449 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 17 treesize of output 17
[2024-11-08 17:57:09,811 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 30 treesize of output 10
[2024-11-08 17:57:09,818 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:57:09,819 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 30 treesize of output 10
[2024-11-08 17:57:09,909 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:57:09,909 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:57:09,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390408901] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:57:09,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:57:09,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 25
[2024-11-08 17:57:09,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686602816]
[2024-11-08 17:57:09,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:57:09,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-08 17:57:09,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:57:09,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-08 17:57:09,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600
[2024-11-08 17:57:09,911 INFO L87 Difference]: Start difference. First operand 7428 states and 10326 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:57:10,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:57:10,536 INFO L93 Difference]: Finished difference Result 7914 states and 10891 transitions.
[2024-11-08 17:57:10,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-08 17:57:10,537 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65
[2024-11-08 17:57:10,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:57:10,552 INFO L225 Difference]: With dead ends: 7914
[2024-11-08 17:57:10,552 INFO L226 Difference]: Without dead ends: 7914
[2024-11-08 17:57:10,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812
[2024-11-08 17:57:10,553 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 227 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:57:10,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 784 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 17:57:10,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7914 states.
[2024-11-08 17:57:10,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7914 to 7417.
[2024-11-08 17:57:10,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7417 states, 7069 states have (on average 1.3711981892771254) internal successors, (9693), 7160 states have internal predecessors, (9693), 296 states have call successors, (296), 24 states have call predecessors, (296), 24 states have return successors, (296), 232 states have call predecessors, (296), 296 states have call successors, (296)
[2024-11-08 17:57:10,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7417 states to 7417 states and 10285 transitions.
[2024-11-08 17:57:10,671 INFO L78 Accepts]: Start accepts. Automaton has 7417 states and 10285 transitions. Word has length 65
[2024-11-08 17:57:10,671 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:57:10,671 INFO L471 AbstractCegarLoop]: Abstraction has 7417 states and 10285 transitions.
[2024-11-08 17:57:10,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:57:10,672 INFO L276 IsEmpty]: Start isEmpty. Operand 7417 states and 10285 transitions.
[2024-11-08 17:57:10,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2024-11-08 17:57:10,673 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:57:10,673 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:57:10,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2024-11-08 17:57:10,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51
[2024-11-08 17:57:10,874 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:57:10,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:57:10,875 INFO L85 PathProgramCache]: Analyzing trace with hash -490020029, now seen corresponding path program 1 times
[2024-11-08 17:57:10,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:57:10,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233677022]
[2024-11-08 17:57:10,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:57:10,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:57:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:11,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:57:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:11,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-11-08 17:57:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:11,556 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:57:11,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:57:11,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233677022]
[2024-11-08 17:57:11,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233677022] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:57:11,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967099207]
[2024-11-08 17:57:11,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:57:11,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:57:11,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:57:11,559 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:57:11,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-11-08 17:57:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:11,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 36 conjuncts are in the unsatisfiable core
[2024-11-08 17:57:11,891 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:57:12,418 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 17:57:12,539 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 22
[2024-11-08 17:57:12,952 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:57:12,952 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 32 treesize of output 12
[2024-11-08 17:57:12,960 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:57:12,960 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:57:12,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967099207] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:57:12,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:57:12,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 18
[2024-11-08 17:57:12,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825150695]
[2024-11-08 17:57:12,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:57:12,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-08 17:57:12,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:57:12,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-08 17:57:12,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342
[2024-11-08 17:57:12,963 INFO L87 Difference]: Start difference. First operand 7417 states and 10285 transitions. Second operand has 11 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:57:13,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:57:13,596 INFO L93 Difference]: Finished difference Result 7913 states and 10868 transitions.
[2024-11-08 17:57:13,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-08 17:57:13,597 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65
[2024-11-08 17:57:13,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:57:13,608 INFO L225 Difference]: With dead ends: 7913
[2024-11-08 17:57:13,609 INFO L226 Difference]: Without dead ends: 7913
[2024-11-08 17:57:13,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506
[2024-11-08 17:57:13,609 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 259 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 17:57:13,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 914 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 17:57:13,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7913 states.
[2024-11-08 17:57:13,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7913 to 7417.
[2024-11-08 17:57:13,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7417 states, 7069 states have (on average 1.3679445466119677) internal successors, (9670), 7160 states have internal predecessors, (9670), 296 states have call successors, (296), 24 states have call predecessors, (296), 24 states have return successors, (296), 232 states have call predecessors, (296), 296 states have call successors, (296)
[2024-11-08 17:57:13,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7417 states to 7417 states and 10262 transitions.
[2024-11-08 17:57:13,713 INFO L78 Accepts]: Start accepts. Automaton has 7417 states and 10262 transitions. Word has length 65
[2024-11-08 17:57:13,714 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:57:13,714 INFO L471 AbstractCegarLoop]: Abstraction has 7417 states and 10262 transitions.
[2024-11-08 17:57:13,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:57:13,714 INFO L276 IsEmpty]: Start isEmpty. Operand 7417 states and 10262 transitions.
[2024-11-08 17:57:13,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2024-11-08 17:57:13,715 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:57:13,715 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:57:13,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-11-08 17:57:13,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52
[2024-11-08 17:57:13,920 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:57:13,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:57:13,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1989248541, now seen corresponding path program 1 times
[2024-11-08 17:57:13,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:57:13,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224805393]
[2024-11-08 17:57:13,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:57:13,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:57:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:14,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:57:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:14,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-11-08 17:57:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:57:14,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:57:14,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224805393]
[2024-11-08 17:57:14,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224805393] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:57:14,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:57:14,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-11-08 17:57:14,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838167158]
[2024-11-08 17:57:14,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:57:14,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 17:57:14,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:57:14,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 17:57:14,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2024-11-08 17:57:14,530 INFO L87 Difference]: Start difference. First operand 7417 states and 10262 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:57:15,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:57:15,350 INFO L93 Difference]: Finished difference Result 8066 states and 11089 transitions.
[2024-11-08 17:57:15,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-08 17:57:15,351 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 66
[2024-11-08 17:57:15,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:57:15,362 INFO L225 Difference]: With dead ends: 8066
[2024-11-08 17:57:15,363 INFO L226 Difference]: Without dead ends: 8066
[2024-11-08 17:57:15,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272
[2024-11-08 17:57:15,363 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 191 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1330 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 17:57:15,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 1330 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 17:57:15,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8066 states.
[2024-11-08 17:57:15,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8066 to 7645.
[2024-11-08 17:57:15,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7645 states, 7297 states have (on average 1.3639851993970125) internal successors, (9953), 7388 states have internal predecessors, (9953), 296 states have call successors, (296), 24 states have call predecessors, (296), 24 states have return successors, (296), 232 states have call predecessors, (296), 296 states have call successors, (296)
[2024-11-08 17:57:15,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7645 states to 7645 states and 10545 transitions.
[2024-11-08 17:57:15,467 INFO L78 Accepts]: Start accepts. Automaton has 7645 states and 10545 transitions. Word has length 66
[2024-11-08 17:57:15,467 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:57:15,467 INFO L471 AbstractCegarLoop]: Abstraction has 7645 states and 10545 transitions.
[2024-11-08 17:57:15,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:57:15,467 INFO L276 IsEmpty]: Start isEmpty. Operand 7645 states and 10545 transitions.
[2024-11-08 17:57:15,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2024-11-08 17:57:15,468 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:57:15,469 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:57:15,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53
[2024-11-08 17:57:15,469 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:57:15,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:57:15,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1537162885, now seen corresponding path program 1 times
[2024-11-08 17:57:15,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:57:15,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754407073]
[2024-11-08 17:57:15,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:57:15,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:57:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:16,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:57:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:16,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-11-08 17:57:16,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:16,275 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:57:16,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:57:16,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754407073]
[2024-11-08 17:57:16,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754407073] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:57:16,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205552360]
[2024-11-08 17:57:16,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:57:16,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:57:16,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:57:16,278 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:57:16,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-11-08 17:57:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:16,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 46 conjuncts are in the unsatisfiable core
[2024-11-08 17:57:16,563 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:57:16,631 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-08 17:57:16,631 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 17:57:17,014 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 17:57:17,106 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 26 treesize of output 21
[2024-11-08 17:57:17,485 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:57:17,485 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 31 treesize of output 11
[2024-11-08 17:57:17,555 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 17:57:17,600 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:57:17,601 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:57:17,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205552360] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:57:17,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:57:17,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 23
[2024-11-08 17:57:17,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517046537]
[2024-11-08 17:57:17,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:57:17,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 17:57:17,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:57:17,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 17:57:17,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552
[2024-11-08 17:57:17,603 INFO L87 Difference]: Start difference. First operand 7645 states and 10545 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:57:18,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:57:18,833 INFO L93 Difference]: Finished difference Result 11737 states and 16048 transitions.
[2024-11-08 17:57:18,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-11-08 17:57:18,834 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 67
[2024-11-08 17:57:18,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:57:18,851 INFO L225 Difference]: With dead ends: 11737
[2024-11-08 17:57:18,851 INFO L226 Difference]: Without dead ends: 11737
[2024-11-08 17:57:18,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=130, Invalid=992, Unknown=0, NotChecked=0, Total=1122
[2024-11-08 17:57:18,852 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 345 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 17:57:18,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1133 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 17:57:18,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11737 states.
[2024-11-08 17:57:18,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11737 to 10122.
[2024-11-08 17:57:18,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10122 states, 9653 states have (on average 1.3561587071376775) internal successors, (13091), 9763 states have internal predecessors, (13091), 406 states have call successors, (406), 35 states have call predecessors, (406), 35 states have return successors, (406), 323 states have call predecessors, (406), 406 states have call successors, (406)
[2024-11-08 17:57:19,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10122 states to 10122 states and 13903 transitions.
[2024-11-08 17:57:19,015 INFO L78 Accepts]: Start accepts. Automaton has 10122 states and 13903 transitions. Word has length 67
[2024-11-08 17:57:19,015 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:57:19,015 INFO L471 AbstractCegarLoop]: Abstraction has 10122 states and 13903 transitions.
[2024-11-08 17:57:19,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:57:19,016 INFO L276 IsEmpty]: Start isEmpty. Operand 10122 states and 13903 transitions.
[2024-11-08 17:57:19,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2024-11-08 17:57:19,017 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:57:19,017 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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]
[2024-11-08 17:57:19,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2024-11-08 17:57:19,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:57:19,218 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 17:57:19,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:57:19,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1717076722, now seen corresponding path program 1 times
[2024-11-08 17:57:19,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:57:19,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148080766]
[2024-11-08 17:57:19,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:57:19,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:57:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:23,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:57:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:23,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-11-08 17:57:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:23,792 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:57:23,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:57:23,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148080766]
[2024-11-08 17:57:23,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148080766] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:57:23,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125066970]
[2024-11-08 17:57:23,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:57:23,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:57:23,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:57:23,795 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:57:23,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-11-08 17:57:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:57:24,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 119 conjuncts are in the unsatisfiable core
[2024-11-08 17:57:24,086 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:57:24,183 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-08 17:57:24,183 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 17:57:24,536 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 17:57:24,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 17:57:24,845 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:57:24,846 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 27 treesize of output 11
[2024-11-08 17:57:24,856 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:57:24,857 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 27 treesize of output 11
[2024-11-08 17:57:25,068 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 17:57:25,095 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 17:57:25,294 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 17:57:25,305 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 16 treesize of output 11
[2024-11-08 17:57:25,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-11-08 17:57:25,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-11-08 17:57:25,956 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size
[2024-11-08 17:57:25,956 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 48 treesize of output 41
[2024-11-08 17:57:25,967 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 32 treesize of output 34
[2024-11-08 17:57:43,454 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:57:43,454 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:57:45,849 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_create_item_~item~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_append_one_~list#1.offset| 4)) (.cse6 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base|)) (.cse4 (+ |c_ULTIMATE.start_create_item_~item~0#1.offset| 8))) (and (forall ((v_ArrVal_1924 (Array Int Int))) (or (forall ((v_ArrVal_1925 Int) (v_ArrVal_1928 (Array Int Int)) (v_ArrVal_1927 (Array Int Int))) (= 0 (let ((.cse0 (let ((.cse5 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_1924) |c_ULTIMATE.start_create_item_~cursor#1.base| v_ArrVal_1928))) (store .cse5 |c_ULTIMATE.start_append_one_~list#1.base| (store (store (select .cse5 |c_ULTIMATE.start_append_one_~list#1.base|) |c_ULTIMATE.start_append_one_~list#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.offset|) .cse2 |c_ULTIMATE.start_create_item_~item~0#1.offset|))))) (select (select .cse0 (select (select (let ((.cse1 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_create_item_~item~0#1.base| (store .cse3 .cse4 v_ArrVal_1925)) |c_ULTIMATE.start_create_item_~cursor#1.base| v_ArrVal_1927))) (store .cse1 |c_ULTIMATE.start_append_one_~list#1.base| (store (store (select .cse1 |c_ULTIMATE.start_append_one_~list#1.base|) |c_ULTIMATE.start_append_one_~list#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base|) .cse2 |c_ULTIMATE.start_create_item_~item~0#1.base|))) |c_~#list~0.base|) |c_~#list~0.offset|)) (+ (select (select .cse0 |c_~#list~0.base|) |c_~#list~0.offset|) 4))))) (not (= v_ArrVal_1924 (store .cse6 .cse4 (select v_ArrVal_1924 .cse4)))))) (forall ((v_ArrVal_1924 (Array Int Int))) (or (forall ((v_ArrVal_1925 Int) (v_ArrVal_1928 (Array Int Int)) (v_ArrVal_1927 (Array Int Int))) (= (select (let ((.cse7 (let ((.cse8 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_create_item_~item~0#1.base| (store .cse3 .cse4 v_ArrVal_1925)) |c_ULTIMATE.start_create_item_~cursor#1.base| v_ArrVal_1927))) (store .cse8 |c_ULTIMATE.start_append_one_~list#1.base| (store (store (select .cse8 |c_ULTIMATE.start_append_one_~list#1.base|) |c_ULTIMATE.start_append_one_~list#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base|) .cse2 |c_ULTIMATE.start_create_item_~item~0#1.base|))))) (select .cse7 (select (select .cse7 |c_~#list~0.base|) |c_~#list~0.offset|))) (+ (select (select (let ((.cse9 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_1924) |c_ULTIMATE.start_create_item_~cursor#1.base| v_ArrVal_1928))) (store .cse9 |c_ULTIMATE.start_append_one_~list#1.base| (store (store (select .cse9 |c_ULTIMATE.start_append_one_~list#1.base|) |c_ULTIMATE.start_append_one_~list#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.offset|) .cse2 |c_ULTIMATE.start_create_item_~item~0#1.offset|))) |c_~#list~0.base|) |c_~#list~0.offset|) 4)) 0)) (not (= v_ArrVal_1924 (store .cse6 .cse4 (select v_ArrVal_1924 .cse4)))))))) is different from false
[2024-11-08 17:57:46,012 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (= 2 |c_ULTIMATE.start_create_item_~term_field~0#1|))) (let ((.cse5 (+ |c_ULTIMATE.start_create_item_~item~0#1.offset| (* |c_ULTIMATE.start_create_item_~term_field~0#1| 4))) (.cse9 (not .cse0)) (.cse4 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_create_item_~item~0#1.base|)) (.cse3 (+ |c_ULTIMATE.start_append_one_~list#1.offset| 4)) (.cse8 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base|)) (.cse6 (+ |c_ULTIMATE.start_create_item_~item~0#1.offset| 8))) (and (or .cse0 (forall ((v_ArrVal_1925 Int) (|ULTIMATE.start_create_item_#t~ite15#1.base| Int) (v_ArrVal_1928 (Array Int Int)) (v_ArrVal_1927 (Array Int Int)) (v_ArrVal_1924 (Array Int Int))) (or (= (select (let ((.cse1 (let ((.cse2 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_create_item_~item~0#1.base| (store (store .cse4 .cse5 |ULTIMATE.start_create_item_#t~ite15#1.base|) .cse6 v_ArrVal_1925)) |c_ULTIMATE.start_create_item_~cursor#1.base| v_ArrVal_1927))) (store .cse2 |c_ULTIMATE.start_append_one_~list#1.base| (store (store (select .cse2 |c_ULTIMATE.start_append_one_~list#1.base|) |c_ULTIMATE.start_append_one_~list#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base|) .cse3 |c_ULTIMATE.start_create_item_~item~0#1.base|))))) (select .cse1 (select (select .cse1 |c_~#list~0.base|) |c_~#list~0.offset|))) (+ (select (select (let ((.cse7 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_1924) |c_ULTIMATE.start_create_item_~cursor#1.base| v_ArrVal_1928))) (store .cse7 |c_ULTIMATE.start_append_one_~list#1.base| (store (store (select .cse7 |c_ULTIMATE.start_append_one_~list#1.base|) |c_ULTIMATE.start_append_one_~list#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.offset|) .cse3 |c_ULTIMATE.start_create_item_~item~0#1.offset|))) |c_~#list~0.base|) |c_~#list~0.offset|) 4)) 0) (not (= (store (store .cse8 .cse5 (select v_ArrVal_1924 .cse5)) .cse6 (select v_ArrVal_1924 .cse6)) v_ArrVal_1924))))) (or .cse9 (forall ((v_ArrVal_1925 Int) (v_ArrVal_1928 (Array Int Int)) (v_ArrVal_1927 (Array Int Int)) (v_ArrVal_1924 (Array Int Int))) (or (= 0 (let ((.cse10 (let ((.cse12 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_1924) |c_ULTIMATE.start_create_item_~cursor#1.base| v_ArrVal_1928))) (store .cse12 |c_ULTIMATE.start_append_one_~list#1.base| (store (store (select .cse12 |c_ULTIMATE.start_append_one_~list#1.base|) |c_ULTIMATE.start_append_one_~list#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.offset|) .cse3 |c_ULTIMATE.start_create_item_~item~0#1.offset|))))) (select (select .cse10 (select (select (let ((.cse11 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_create_item_~item~0#1.base| (store .cse4 .cse6 v_ArrVal_1925)) |c_ULTIMATE.start_create_item_~cursor#1.base| v_ArrVal_1927))) (store .cse11 |c_ULTIMATE.start_append_one_~list#1.base| (store (store (select .cse11 |c_ULTIMATE.start_append_one_~list#1.base|) |c_ULTIMATE.start_append_one_~list#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base|) .cse3 |c_ULTIMATE.start_create_item_~item~0#1.base|))) |c_~#list~0.base|) |c_~#list~0.offset|)) (+ (select (select .cse10 |c_~#list~0.base|) |c_~#list~0.offset|) 4)))) (not (= v_ArrVal_1924 (store .cse8 .cse6 (select v_ArrVal_1924 .cse6))))))) (or .cse0 (forall ((v_ArrVal_1925 Int) (|ULTIMATE.start_create_item_#t~ite15#1.base| Int) (v_ArrVal_1928 (Array Int Int)) (v_ArrVal_1927 (Array Int Int)) (v_ArrVal_1924 (Array Int Int))) (or (not (= (store (store .cse8 .cse5 (select v_ArrVal_1924 .cse5)) .cse6 (select v_ArrVal_1924 .cse6)) v_ArrVal_1924)) (= (let ((.cse13 (let ((.cse15 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_1924) |c_ULTIMATE.start_create_item_~cursor#1.base| v_ArrVal_1928))) (store .cse15 |c_ULTIMATE.start_append_one_~list#1.base| (store (store (select .cse15 |c_ULTIMATE.start_append_one_~list#1.base|) |c_ULTIMATE.start_append_one_~list#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.offset|) .cse3 |c_ULTIMATE.start_create_item_~item~0#1.offset|))))) (select (select .cse13 (select (select (let ((.cse14 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_create_item_~item~0#1.base| (store (store .cse4 .cse5 |ULTIMATE.start_create_item_#t~ite15#1.base|) .cse6 v_ArrVal_1925)) |c_ULTIMATE.start_create_item_~cursor#1.base| v_ArrVal_1927))) (store .cse14 |c_ULTIMATE.start_append_one_~list#1.base| (store (store (select .cse14 |c_ULTIMATE.start_append_one_~list#1.base|) |c_ULTIMATE.start_append_one_~list#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base|) .cse3 |c_ULTIMATE.start_create_item_~item~0#1.base|))) |c_~#list~0.base|) |c_~#list~0.offset|)) (+ (select (select .cse13 |c_~#list~0.base|) |c_~#list~0.offset|) 4))) 0)))) (or .cse9 (forall ((v_ArrVal_1925 Int) (v_ArrVal_1928 (Array Int Int)) (v_ArrVal_1927 (Array Int Int)) (v_ArrVal_1924 (Array Int Int))) (or (= (select (let ((.cse16 (let ((.cse17 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_create_item_~item~0#1.base| (store .cse4 .cse6 v_ArrVal_1925)) |c_ULTIMATE.start_create_item_~cursor#1.base| v_ArrVal_1927))) (store .cse17 |c_ULTIMATE.start_append_one_~list#1.base| (store (store (select .cse17 |c_ULTIMATE.start_append_one_~list#1.base|) |c_ULTIMATE.start_append_one_~list#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base|) .cse3 |c_ULTIMATE.start_create_item_~item~0#1.base|))))) (select .cse16 (select (select .cse16 |c_~#list~0.base|) |c_~#list~0.offset|))) (+ (select (select (let ((.cse18 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_1924) |c_ULTIMATE.start_create_item_~cursor#1.base| v_ArrVal_1928))) (store .cse18 |c_ULTIMATE.start_append_one_~list#1.base| (store (store (select .cse18 |c_ULTIMATE.start_append_one_~list#1.base|) |c_ULTIMATE.start_append_one_~list#1.offset| |c_ULTIMATE.start_create_item_~item~0#1.offset|) .cse3 |c_ULTIMATE.start_create_item_~item~0#1.offset|))) |c_~#list~0.base|) |c_~#list~0.offset|) 4)) 0) (not (= v_ArrVal_1924 (store .cse8 .cse6 (select v_ArrVal_1924 .cse6)))))))))) is different from false
[2024-11-08 17:57:47,924 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 17:57:48,049 INFO L349 Elim1Store]: treesize reduction 36, result has 55.0 percent of original size
[2024-11-08 17:57:48,050 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 3 case distinctions, treesize of input 176 treesize of output 124
[2024-11-08 17:57:48,116 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:57:48,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2185 treesize of output 2191
[2024-11-08 17:57:48,820 INFO L349 Elim1Store]: treesize reduction 82, result has 66.0 percent of original size
[2024-11-08 17:57:48,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 178315 treesize of output 161851
[2024-11-08 17:57:50,629 INFO L349 Elim1Store]: treesize reduction 263, result has 57.9 percent of original size
[2024-11-08 17:57:50,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 9895 treesize of output 9180
[2024-11-08 17:57:51,319 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 9643 treesize of output 9387
[2024-11-08 17:57:52,269 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 4
[2024-11-08 17:59:05,763 INFO L349 Elim1Store]: treesize reduction 46, result has 2.1 percent of original size
[2024-11-08 17:59:05,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1328 treesize of output 1
[2024-11-08 17:59:06,079 INFO L349 Elim1Store]: treesize reduction 46, result has 2.1 percent of original size
[2024-11-08 17:59:06,080 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 1328 treesize of output 1
[2024-11-08 17:59:27,854 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:59:27,855 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 936 treesize of output 926
[2024-11-08 17:59:55,551 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 1223 treesize of output 1219
[2024-11-08 17:59:56,112 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 1291 treesize of output 1287
[2024-11-08 18:00:21,563 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 18:00:21,616 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 18:00:21,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 2005 treesize of output 1953
[2024-11-08 18:01:43,973 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/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 18:01:43,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101
[2024-11-08 18:01:43,975 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception
[2024-11-08 18:01:43,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0
[2024-11-08 18:01:44,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55
[2024-11-08 18:01:44,177 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_670ad50a-f9c0-4d93-bff2-286107ac1a35/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.push(Scriptor.java:133)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107)
at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:324)
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)
... 69 more
[2024-11-08 18:01:44,184 INFO L158 Benchmark]: Toolchain (without parser) took 723945.69ms. Allocated memory was 155.2MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 121.3MB in the beginning and 849.5MB in the end (delta: -728.2MB). Peak memory consumption was 935.8MB. Max. memory is 16.1GB.
[2024-11-08 18:01:44,184 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 100.7MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 18:01:44,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 908.48ms. Allocated memory is still 155.2MB. Free memory was 121.3MB in the beginning and 96.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-08 18:01:44,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.07ms. Allocated memory is still 155.2MB. Free memory was 96.1MB in the beginning and 93.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:01:44,185 INFO L158 Benchmark]: Boogie Preprocessor took 168.46ms. Allocated memory is still 155.2MB. Free memory was 93.0MB in the beginning and 88.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-11-08 18:01:44,185 INFO L158 Benchmark]: RCFGBuilder took 1177.88ms. Allocated memory is still 155.2MB. Free memory was 88.8MB in the beginning and 101.8MB in the end (delta: -13.0MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB.
[2024-11-08 18:01:44,185 INFO L158 Benchmark]: TraceAbstraction took 721594.07ms. Allocated memory was 155.2MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 101.8MB in the beginning and 849.5MB in the end (delta: -747.8MB). Peak memory consumption was 915.1MB. Max. memory is 16.1GB.
[2024-11-08 18:01:44,186 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.39ms. Allocated memory is still 100.7MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 908.48ms. Allocated memory is still 155.2MB. Free memory was 121.3MB in the beginning and 96.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 87.07ms. Allocated memory is still 155.2MB. Free memory was 96.1MB in the beginning and 93.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 168.46ms. Allocated memory is still 155.2MB. Free memory was 93.0MB in the beginning and 88.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* RCFGBuilder took 1177.88ms. Allocated memory is still 155.2MB. Free memory was 88.8MB in the beginning and 101.8MB in the end (delta: -13.0MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB.
* TraceAbstraction took 721594.07ms. Allocated memory was 155.2MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 101.8MB in the beginning and 849.5MB in the end (delta: -747.8MB). Peak memory consumption was 915.1MB. 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_670ad50a-f9c0-4d93-bff2-286107ac1a35/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_670ad50a-f9c0-4d93-bff2-286107ac1a35/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_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/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_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0217_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/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_670ad50a-f9c0-4d93-bff2-286107ac1a35/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 e4aac8fd1b71e0bd84f9ab8e5c238dc6bf3a295fcb9cebe504ba6d0c9a6a7b7a
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 18:01:47,088 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 18:01:47,232 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2024-11-08 18:01:47,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 18:01:47,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 18:01:47,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 18:01:47,288 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 18:01:47,289 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 18:01:47,290 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 18:01:47,290 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 18:01:47,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 18:01:47,291 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 18:01:47,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 18:01:47,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 18:01:47,293 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 18:01:47,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 18:01:47,295 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 18:01:47,295 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 18:01:47,296 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 18:01:47,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 18:01:47,297 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-08 18:01:47,297 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-08 18:01:47,298 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-08 18:01:47,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 18:01:47,299 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-08 18:01:47,299 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-08 18:01:47,300 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 18:01:47,300 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-08 18:01:47,301 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 18:01:47,301 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 18:01:47,301 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 18:01:47,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 18:01:47,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 18:01:47,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 18:01:47,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 18:01:47,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:01:47,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 18:01:47,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 18:01:47,305 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-08 18:01:47,305 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-08 18:01:47,306 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 18:01:47,306 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 18:01:47,306 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 18:01:47,307 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 18:01:47,307 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_670ad50a-f9c0-4d93-bff2-286107ac1a35/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4aac8fd1b71e0bd84f9ab8e5c238dc6bf3a295fcb9cebe504ba6d0c9a6a7b7a
[2024-11-08 18:01:47,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 18:01:47,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 18:01:47,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 18:01:47,888 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 18:01:47,889 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 18:01:47,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/list-ext-properties/test-0217_1.i
Unable to find full path for "g++"
[2024-11-08 18:01:50,408 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 18:01:50,891 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 18:01:50,892 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/sv-benchmarks/c/list-ext-properties/test-0217_1.i
[2024-11-08 18:01:50,914 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/data/6e4d6e71c/323f745f805a4ec9be54ebb6702f678a/FLAG848df17ed
[2024-11-08 18:01:50,950 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/data/6e4d6e71c/323f745f805a4ec9be54ebb6702f678a
[2024-11-08 18:01:50,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 18:01:50,959 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 18:01:50,961 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 18:01:50,961 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 18:01:50,970 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 18:01:50,971 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:01:50" (1/1) ...
[2024-11-08 18:01:50,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b723371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:50, skipping insertion in model container
[2024-11-08 18:01:50,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:01:50" (1/1) ...
[2024-11-08 18:01:51,062 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 18:01:51,816 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:01:51,843 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 18:01:51,962 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:01:52,051 INFO L204 MainTranslator]: Completed translation
[2024-11-08 18:01:52,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:52 WrapperNode
[2024-11-08 18:01:52,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 18:01:52,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 18:01:52,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 18:01:52,055 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 18:01:52,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:52" (1/1) ...
[2024-11-08 18:01:52,103 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:52" (1/1) ...
[2024-11-08 18:01:52,158 INFO L138 Inliner]: procedures = 182, calls = 47, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 243
[2024-11-08 18:01:52,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 18:01:52,159 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 18:01:52,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 18:01:52,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 18:01:52,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:52" (1/1) ...
[2024-11-08 18:01:52,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:52" (1/1) ...
[2024-11-08 18:01:52,193 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:52" (1/1) ...
[2024-11-08 18:01:52,248 INFO L175 MemorySlicer]: Split 32 memory accesses to 2 slices as follows [2, 30]. 94 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2]. The 11 writes are split as follows [0, 11].
[2024-11-08 18:01:52,248 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:52" (1/1) ...
[2024-11-08 18:01:52,249 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:52" (1/1) ...
[2024-11-08 18:01:52,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:52" (1/1) ...
[2024-11-08 18:01:52,292 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:52" (1/1) ...
[2024-11-08 18:01:52,296 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:52" (1/1) ...
[2024-11-08 18:01:52,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:52" (1/1) ...
[2024-11-08 18:01:52,305 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 18:01:52,311 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 18:01:52,311 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 18:01:52,311 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 18:01:52,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:52" (1/1) ...
[2024-11-08 18:01:52,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:01:52,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:01:52,358 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 18:01:52,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 18:01:52,394 INFO L130 BoogieDeclarations]: Found specification of procedure rand_end_point
[2024-11-08 18:01:52,395 INFO L138 BoogieDeclarations]: Found implementation of procedure rand_end_point
[2024-11-08 18:01:52,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-08 18:01:52,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 18:01:52,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-08 18:01:52,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-08 18:01:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-08 18:01:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-08 18:01:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0
[2024-11-08 18:01:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1
[2024-11-08 18:01:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-08 18:01:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-08 18:01:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-08 18:01:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-08 18:01:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-08 18:01:52,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 18:01:52,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 18:01:52,629 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 18:01:52,632 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 18:01:53,869 INFO L? ?]: Removed 187 outVars from TransFormulas that were not future-live.
[2024-11-08 18:01:53,873 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 18:01:53,901 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 18:01:53,904 INFO L316 CfgBuilder]: Removed 5 assume(true) statements.
[2024-11-08 18:01:53,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:01:53 BoogieIcfgContainer
[2024-11-08 18:01:53,905 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 18:01:53,909 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 18:01:53,909 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 18:01:53,914 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 18:01:53,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:01:50" (1/3) ...
[2024-11-08 18:01:53,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65089f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:01:53, skipping insertion in model container
[2024-11-08 18:01:53,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:52" (2/3) ...
[2024-11-08 18:01:53,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65089f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:01:53, skipping insertion in model container
[2024-11-08 18:01:53,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:01:53" (3/3) ...
[2024-11-08 18:01:53,920 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0217_1.i
[2024-11-08 18:01:53,944 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 18:01:53,945 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 67 error locations.
[2024-11-08 18:01:54,010 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 18:01:54,017 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;@2e63cc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 18:01:54,018 INFO L334 AbstractCegarLoop]: Starting to check reachability of 67 error locations.
[2024-11-08 18:01:54,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 100 states have (on average 1.96) internal successors, (196), 167 states have internal predecessors, (196), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:01:54,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-08 18:01:54,038 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:01:54,039 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-08 18:01:54,039 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:01:54,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:01:54,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1045550986, now seen corresponding path program 1 times
[2024-11-08 18:01:54,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:01:54,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1434069559]
[2024-11-08 18:01:54,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:01:54,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:01:54,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:01:54,068 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:01:54,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 18:01:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:01:54,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-08 18:01:54,239 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:01:54,262 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 18:01:54,262 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:01:54,263 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:01:54,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434069559]
[2024-11-08 18:01:54,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434069559] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:01:54,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:01:54,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:01:54,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225852697]
[2024-11-08 18:01:54,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:01:54,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 18:01:54,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:01:54,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 18:01:54,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 18:01:54,311 INFO L87 Difference]: Start difference. First operand has 171 states, 100 states have (on average 1.96) internal successors, (196), 167 states have internal predecessors, (196), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 18:01:54,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:01:54,347 INFO L93 Difference]: Finished difference Result 171 states and 194 transitions.
[2024-11-08 18:01:54,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 18:01:54,352 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 18:01:54,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:01:54,366 INFO L225 Difference]: With dead ends: 171
[2024-11-08 18:01:54,367 INFO L226 Difference]: Without dead ends: 169
[2024-11-08 18:01:54,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 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 18:01:54,377 INFO L432 NwaCegarLoop]: 194 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, 194 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 18:01:54,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 18:01:54,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states.
[2024-11-08 18:01:54,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169.
[2024-11-08 18:01:54,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 99 states have (on average 1.898989898989899) internal successors, (188), 165 states have internal predecessors, (188), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:01:54,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 192 transitions.
[2024-11-08 18:01:54,460 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 192 transitions. Word has length 6
[2024-11-08 18:01:54,461 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:01:54,462 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 192 transitions.
[2024-11-08 18:01:54,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 18:01:54,463 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 192 transitions.
[2024-11-08 18:01:54,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 18:01:54,464 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:01:54,464 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:01:54,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 18:01:54,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:01:54,665 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:01:54,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:01:54,666 INFO L85 PathProgramCache]: Analyzing trace with hash 564788077, now seen corresponding path program 1 times
[2024-11-08 18:01:54,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:01:54,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [309618797]
[2024-11-08 18:01:54,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:01:54,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:01:54,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:01:54,670 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:01:54,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 18:01:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:01:54,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 18:01:54,812 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:01:54,955 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 18:01:54,955 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:01:54,958 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:01:54,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309618797]
[2024-11-08 18:01:54,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309618797] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:01:54,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:01:54,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-08 18:01:54,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321682638]
[2024-11-08 18:01:54,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:01:54,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 18:01:54,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:01:54,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 18:01:54,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 18:01:54,967 INFO L87 Difference]: Start difference. First operand 169 states and 192 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 18:01:55,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:01:55,614 INFO L93 Difference]: Finished difference Result 329 states and 374 transitions.
[2024-11-08 18:01:55,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 18:01:55,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 18:01:55,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:01:55,620 INFO L225 Difference]: With dead ends: 329
[2024-11-08 18:01:55,623 INFO L226 Difference]: Without dead ends: 329
[2024-11-08 18:01:55,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 18:01:55,626 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 172 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 18:01:55,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 251 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 18:01:55,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states.
[2024-11-08 18:01:55,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 236.
[2024-11-08 18:01:55,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 163 states have (on average 1.8773006134969326) internal successors, (306), 229 states have internal predecessors, (306), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 18:01:55,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 314 transitions.
[2024-11-08 18:01:55,670 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 314 transitions. Word has length 8
[2024-11-08 18:01:55,676 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:01:55,677 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 314 transitions.
[2024-11-08 18:01:55,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 18:01:55,677 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 314 transitions.
[2024-11-08 18:01:55,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 18:01:55,678 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:01:55,678 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:01:55,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 18:01:55,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:01:55,879 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:01:55,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:01:55,881 INFO L85 PathProgramCache]: Analyzing trace with hash 564788078, now seen corresponding path program 1 times
[2024-11-08 18:01:55,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:01:55,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [400521580]
[2024-11-08 18:01:55,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:01:55,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:01:55,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:01:55,886 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:01:55,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 18:01:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:01:56,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 18:01:56,009 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:01:56,056 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 18:01:56,067 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:01:56,068 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:01:56,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400521580]
[2024-11-08 18:01:56,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400521580] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:01:56,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:01:56,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 18:01:56,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787414846]
[2024-11-08 18:01:56,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:01:56,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:01:56,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:01:56,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:01:56,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:01:56,077 INFO L87 Difference]: Start difference. First operand 236 states and 314 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 18:01:56,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:01:56,158 INFO L93 Difference]: Finished difference Result 415 states and 526 transitions.
[2024-11-08 18:01:56,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 18:01:56,159 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 18:01:56,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:01:56,162 INFO L225 Difference]: With dead ends: 415
[2024-11-08 18:01:56,164 INFO L226 Difference]: Without dead ends: 415
[2024-11-08 18:01:56,164 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 18:01:56,166 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 181 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 18:01:56,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 701 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 18:01:56,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states.
[2024-11-08 18:01:56,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 238.
[2024-11-08 18:01:56,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 165 states have (on average 1.8666666666666667) internal successors, (308), 231 states have internal predecessors, (308), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 18:01:56,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 316 transitions.
[2024-11-08 18:01:56,193 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 316 transitions. Word has length 8
[2024-11-08 18:01:56,194 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:01:56,194 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 316 transitions.
[2024-11-08 18:01:56,194 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 18:01:56,195 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 316 transitions.
[2024-11-08 18:01:56,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 18:01:56,195 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:01:56,196 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:01:56,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-08 18:01:56,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:01:56,400 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:01:56,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:01:56,401 INFO L85 PathProgramCache]: Analyzing trace with hash 562941036, now seen corresponding path program 1 times
[2024-11-08 18:01:56,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:01:56,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1835286632]
[2024-11-08 18:01:56,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:01:56,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:01:56,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:01:56,405 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:01:56,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 18:01:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:01:56,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 18:01:56,513 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:01:56,740 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 18:01:56,741 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:01:56,741 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:01:56,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835286632]
[2024-11-08 18:01:56,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835286632] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:01:56,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:01:56,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:01:56,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952549602]
[2024-11-08 18:01:56,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:01:56,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:01:56,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:01:56,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:01:56,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:01:56,747 INFO L87 Difference]: Start difference. First operand 238 states and 316 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 18:01:57,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:01:57,568 INFO L93 Difference]: Finished difference Result 371 states and 479 transitions.
[2024-11-08 18:01:57,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 18:01:57,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 18:01:57,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:01:57,583 INFO L225 Difference]: With dead ends: 371
[2024-11-08 18:01:57,583 INFO L226 Difference]: Without dead ends: 371
[2024-11-08 18:01:57,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:01:57,585 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 110 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 18:01:57,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 424 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 18:01:57,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states.
[2024-11-08 18:01:57,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 319.
[2024-11-08 18:01:57,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 240 states have (on average 1.8291666666666666) internal successors, (439), 308 states have internal predecessors, (439), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-08 18:01:57,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 455 transitions.
[2024-11-08 18:01:57,608 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 455 transitions. Word has length 8
[2024-11-08 18:01:57,609 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:01:57,609 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 455 transitions.
[2024-11-08 18:01:57,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 18:01:57,610 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 455 transitions.
[2024-11-08 18:01:57,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 18:01:57,610 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:01:57,611 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:01:57,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-08 18:01:57,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:01:57,812 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:01:57,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:01:57,812 INFO L85 PathProgramCache]: Analyzing trace with hash 562941098, now seen corresponding path program 1 times
[2024-11-08 18:01:57,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:01:57,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1362651254]
[2024-11-08 18:01:57,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:01:57,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:01:57,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:01:57,814 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:01:57,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 18:01:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:01:57,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 18:01:57,904 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:01:58,056 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 18:01:58,057 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:01:58,057 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:01:58,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362651254]
[2024-11-08 18:01:58,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362651254] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:01:58,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:01:58,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:01:58,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748291524]
[2024-11-08 18:01:58,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:01:58,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:01:58,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:01:58,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:01:58,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:01:58,060 INFO L87 Difference]: Start difference. First operand 319 states and 455 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 18:01:58,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:01:58,799 INFO L93 Difference]: Finished difference Result 370 states and 477 transitions.
[2024-11-08 18:01:58,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 18:01:58,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 18:01:58,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:01:58,807 INFO L225 Difference]: With dead ends: 370
[2024-11-08 18:01:58,807 INFO L226 Difference]: Without dead ends: 370
[2024-11-08 18:01:58,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:01:58,809 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 108 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 18:01:58,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 425 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 18:01:58,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states.
[2024-11-08 18:01:58,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 319.
[2024-11-08 18:01:58,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 240 states have (on average 1.8291666666666666) internal successors, (439), 308 states have internal predecessors, (439), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-08 18:01:58,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 455 transitions.
[2024-11-08 18:01:58,837 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 455 transitions. Word has length 8
[2024-11-08 18:01:58,837 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:01:58,837 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 455 transitions.
[2024-11-08 18:01:58,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 18:01:58,838 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 455 transitions.
[2024-11-08 18:01:58,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-08 18:01:58,846 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:01:58,846 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:01:58,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-08 18:01:59,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:01:59,047 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:01:59,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:01:59,048 INFO L85 PathProgramCache]: Analyzing trace with hash -735842544, now seen corresponding path program 1 times
[2024-11-08 18:01:59,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:01:59,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1759380668]
[2024-11-08 18:01:59,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:01:59,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:01:59,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:01:59,050 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:01:59,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-08 18:01:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:01:59,143 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-08 18:01:59,144 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:01:59,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:01:59,190 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:01:59,190 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:01:59,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759380668]
[2024-11-08 18:01:59,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759380668] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:01:59,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:01:59,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 18:01:59,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093299667]
[2024-11-08 18:01:59,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:01:59,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 18:01:59,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:01:59,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 18:01:59,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 18:01:59,193 INFO L87 Difference]: Start difference. First operand 319 states and 455 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:01:59,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:01:59,230 INFO L93 Difference]: Finished difference Result 457 states and 609 transitions.
[2024-11-08 18:01:59,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 18:01:59,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12
[2024-11-08 18:01:59,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:01:59,233 INFO L225 Difference]: With dead ends: 457
[2024-11-08 18:01:59,233 INFO L226 Difference]: Without dead ends: 457
[2024-11-08 18:01:59,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 18:01:59,235 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 158 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 18:01:59,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 372 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 18:01:59,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states.
[2024-11-08 18:01:59,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 321.
[2024-11-08 18:01:59,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 242 states have (on average 1.8140495867768596) internal successors, (439), 310 states have internal predecessors, (439), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-08 18:01:59,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 455 transitions.
[2024-11-08 18:01:59,271 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 455 transitions. Word has length 12
[2024-11-08 18:01:59,271 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:01:59,271 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 455 transitions.
[2024-11-08 18:01:59,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:01:59,272 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 455 transitions.
[2024-11-08 18:01:59,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-08 18:01:59,272 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:01:59,273 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:01:59,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-08 18:01:59,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:01:59,474 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:01:59,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:01:59,475 INFO L85 PathProgramCache]: Analyzing trace with hash -735825759, now seen corresponding path program 1 times
[2024-11-08 18:01:59,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:01:59,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [509903986]
[2024-11-08 18:01:59,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:01:59,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:01:59,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:01:59,477 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:01:59,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-08 18:01:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:01:59,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-08 18:01:59,569 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:01:59,607 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 18:01:59,607 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:01:59,607 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:01:59,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509903986]
[2024-11-08 18:01:59,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509903986] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:01:59,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:01:59,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:01:59,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203862779]
[2024-11-08 18:01:59,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:01:59,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 18:01:59,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:01:59,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 18:01:59,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 18:01:59,610 INFO L87 Difference]: Start difference. First operand 321 states and 455 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:01:59,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:01:59,966 INFO L93 Difference]: Finished difference Result 372 states and 502 transitions.
[2024-11-08 18:01:59,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 18:01:59,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12
[2024-11-08 18:01:59,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:01:59,970 INFO L225 Difference]: With dead ends: 372
[2024-11-08 18:01:59,971 INFO L226 Difference]: Without dead ends: 365
[2024-11-08 18:01:59,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 18:01:59,972 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 71 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 18:01:59,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 289 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 18:01:59,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states.
[2024-11-08 18:01:59,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 318.
[2024-11-08 18:01:59,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 239 states have (on average 1.8158995815899581) internal successors, (434), 307 states have internal predecessors, (434), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-08 18:01:59,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 450 transitions.
[2024-11-08 18:01:59,985 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 450 transitions. Word has length 12
[2024-11-08 18:01:59,986 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:01:59,986 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 450 transitions.
[2024-11-08 18:01:59,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:01:59,986 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 450 transitions.
[2024-11-08 18:01:59,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-08 18:01:59,987 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:01:59,987 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 18:02:00,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-08 18:02:00,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:00,192 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:00,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:00,192 INFO L85 PathProgramCache]: Analyzing trace with hash -598836032, now seen corresponding path program 1 times
[2024-11-08 18:02:00,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:00,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [607155564]
[2024-11-08 18:02:00,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:00,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:00,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:00,196 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:00,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-08 18:02:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:00,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:00,314 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:00,510 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 18:02:00,511 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:00,512 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:00,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607155564]
[2024-11-08 18:02:00,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607155564] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:00,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:00,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:02:00,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780364860]
[2024-11-08 18:02:00,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:00,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:02:00,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:00,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:02:00,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:02:00,515 INFO L87 Difference]: Start difference. First operand 318 states and 450 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:01,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:01,275 INFO L93 Difference]: Finished difference Result 427 states and 547 transitions.
[2024-11-08 18:02:01,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 18:02:01,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2024-11-08 18:02:01,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:01,279 INFO L225 Difference]: With dead ends: 427
[2024-11-08 18:02:01,279 INFO L226 Difference]: Without dead ends: 427
[2024-11-08 18:02:01,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 18:02:01,281 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 171 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:01,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 364 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 18:02:01,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states.
[2024-11-08 18:02:01,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 324.
[2024-11-08 18:02:01,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 245 states have (on average 1.7959183673469388) internal successors, (440), 313 states have internal predecessors, (440), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-08 18:02:01,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 456 transitions.
[2024-11-08 18:02:01,299 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 456 transitions. Word has length 17
[2024-11-08 18:02:01,300 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:01,300 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 456 transitions.
[2024-11-08 18:02:01,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:01,301 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 456 transitions.
[2024-11-08 18:02:01,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-08 18:02:01,302 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:01,302 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 18:02:01,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-08 18:02:01,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:01,503 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:01,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:01,504 INFO L85 PathProgramCache]: Analyzing trace with hash -598836031, now seen corresponding path program 1 times
[2024-11-08 18:02:01,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:01,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1209022451]
[2024-11-08 18:02:01,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:01,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:01,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:01,508 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:01,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-08 18:02:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:01,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:01,610 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:01,870 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 18:02:01,870 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:01,870 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:01,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209022451]
[2024-11-08 18:02:01,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209022451] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:01,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:01,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:02:01,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714084934]
[2024-11-08 18:02:01,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:01,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:02:01,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:01,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:02:01,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:02:01,873 INFO L87 Difference]: Start difference. First operand 324 states and 456 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:02,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:02,630 INFO L93 Difference]: Finished difference Result 358 states and 456 transitions.
[2024-11-08 18:02:02,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 18:02:02,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2024-11-08 18:02:02,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:02,633 INFO L225 Difference]: With dead ends: 358
[2024-11-08 18:02:02,633 INFO L226 Difference]: Without dead ends: 358
[2024-11-08 18:02:02,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 18:02:02,634 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 91 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:02,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 438 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 18:02:02,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states.
[2024-11-08 18:02:02,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 324.
[2024-11-08 18:02:02,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 245 states have (on average 1.7714285714285714) internal successors, (434), 313 states have internal predecessors, (434), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-08 18:02:02,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 450 transitions.
[2024-11-08 18:02:02,665 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 450 transitions. Word has length 17
[2024-11-08 18:02:02,666 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:02,666 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 450 transitions.
[2024-11-08 18:02:02,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:02,666 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 450 transitions.
[2024-11-08 18:02:02,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2024-11-08 18:02:02,668 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:02,668 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:02:02,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2024-11-08 18:02:02,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:02,872 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:02,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:02,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1098166815, now seen corresponding path program 1 times
[2024-11-08 18:02:02,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:02,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1395986929]
[2024-11-08 18:02:02,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:02,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:02,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:02,879 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:02,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-08 18:02:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:02,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:03,000 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:03,451 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 18:02:03,463 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 18:02:03,555 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 18:02:03,556 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:03,556 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:03,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395986929]
[2024-11-08 18:02:03,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395986929] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:03,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:03,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 18:02:03,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975736596]
[2024-11-08 18:02:03,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:03,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:02:03,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:03,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:02:03,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:02:03,560 INFO L87 Difference]: Start difference. First operand 324 states and 450 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:05,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:05,115 INFO L93 Difference]: Finished difference Result 460 states and 578 transitions.
[2024-11-08 18:02:05,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:02:05,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18
[2024-11-08 18:02:05,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:05,118 INFO L225 Difference]: With dead ends: 460
[2024-11-08 18:02:05,118 INFO L226 Difference]: Without dead ends: 460
[2024-11-08 18:02:05,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-08 18:02:05,120 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 238 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:05,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 477 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-08 18:02:05,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states.
[2024-11-08 18:02:05,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 345.
[2024-11-08 18:02:05,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 266 states have (on average 1.7706766917293233) internal successors, (471), 334 states have internal predecessors, (471), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-08 18:02:05,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 487 transitions.
[2024-11-08 18:02:05,134 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 487 transitions. Word has length 18
[2024-11-08 18:02:05,134 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:05,134 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 487 transitions.
[2024-11-08 18:02:05,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:05,135 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 487 transitions.
[2024-11-08 18:02:05,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-11-08 18:02:05,139 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:05,139 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]
[2024-11-08 18:02:05,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-11-08 18:02:05,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:05,343 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:05,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:05,343 INFO L85 PathProgramCache]: Analyzing trace with hash 897773476, now seen corresponding path program 1 times
[2024-11-08 18:02:05,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:05,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [406573873]
[2024-11-08 18:02:05,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:05,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:05,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:05,346 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:05,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-08 18:02:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:05,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:05,462 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:05,868 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 18:02:05,868 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:05,868 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:05,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406573873]
[2024-11-08 18:02:05,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406573873] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:05,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:05,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 18:02:05,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462648641]
[2024-11-08 18:02:05,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:05,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 18:02:05,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:05,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 18:02:05,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-11-08 18:02:05,871 INFO L87 Difference]: Start difference. First operand 345 states and 487 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:06,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:06,839 INFO L93 Difference]: Finished difference Result 458 states and 617 transitions.
[2024-11-08 18:02:06,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 18:02:06,839 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22
[2024-11-08 18:02:06,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:06,842 INFO L225 Difference]: With dead ends: 458
[2024-11-08 18:02:06,842 INFO L226 Difference]: Without dead ends: 458
[2024-11-08 18:02:06,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110
[2024-11-08 18:02:06,843 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 107 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:06,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1010 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 18:02:06,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states.
[2024-11-08 18:02:06,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 406.
[2024-11-08 18:02:06,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 324 states have (on average 1.728395061728395) internal successors, (560), 391 states have internal predecessors, (560), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 18:02:06,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 580 transitions.
[2024-11-08 18:02:06,872 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 580 transitions. Word has length 22
[2024-11-08 18:02:06,872 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:06,873 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 580 transitions.
[2024-11-08 18:02:06,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:06,873 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 580 transitions.
[2024-11-08 18:02:06,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-11-08 18:02:06,876 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:06,877 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]
[2024-11-08 18:02:06,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-11-08 18:02:07,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:07,078 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:07,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:07,078 INFO L85 PathProgramCache]: Analyzing trace with hash 717929188, now seen corresponding path program 1 times
[2024-11-08 18:02:07,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:07,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [686306675]
[2024-11-08 18:02:07,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:07,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:07,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:07,080 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:07,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-08 18:02:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:07,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:07,195 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:07,929 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 18:02:07,929 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:07,930 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:07,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686306675]
[2024-11-08 18:02:07,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686306675] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:07,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:07,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 18:02:07,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945368982]
[2024-11-08 18:02:07,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:07,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 18:02:07,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:07,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 18:02:07,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-11-08 18:02:07,933 INFO L87 Difference]: Start difference. First operand 406 states and 580 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:09,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:09,062 INFO L93 Difference]: Finished difference Result 450 states and 606 transitions.
[2024-11-08 18:02:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 18:02:09,065 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23
[2024-11-08 18:02:09,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:09,067 INFO L225 Difference]: With dead ends: 450
[2024-11-08 18:02:09,067 INFO L226 Difference]: Without dead ends: 450
[2024-11-08 18:02:09,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156
[2024-11-08 18:02:09,068 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 94 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:09,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 859 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 18:02:09,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states.
[2024-11-08 18:02:09,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 400.
[2024-11-08 18:02:09,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 318 states have (on average 1.7264150943396226) internal successors, (549), 385 states have internal predecessors, (549), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 18:02:09,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 569 transitions.
[2024-11-08 18:02:09,085 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 569 transitions. Word has length 23
[2024-11-08 18:02:09,086 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:09,086 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 569 transitions.
[2024-11-08 18:02:09,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:09,087 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 569 transitions.
[2024-11-08 18:02:09,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-08 18:02:09,087 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:09,088 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 18:02:09,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-11-08 18:02:09,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:09,289 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:09,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:09,290 INFO L85 PathProgramCache]: Analyzing trace with hash -519420613, now seen corresponding path program 1 times
[2024-11-08 18:02:09,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:09,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [960819488]
[2024-11-08 18:02:09,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:09,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:09,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:09,293 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:09,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-08 18:02:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:09,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:09,415 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:09,427 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 18:02:09,466 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 18:02:09,466 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:09,466 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:09,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960819488]
[2024-11-08 18:02:09,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960819488] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:09,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:09,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:02:09,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053835493]
[2024-11-08 18:02:09,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:09,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 18:02:09,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:09,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 18:02:09,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 18:02:09,469 INFO L87 Difference]: Start difference. First operand 400 states and 569 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:09,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:09,760 INFO L93 Difference]: Finished difference Result 397 states and 560 transitions.
[2024-11-08 18:02:09,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 18:02:09,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24
[2024-11-08 18:02:09,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:09,763 INFO L225 Difference]: With dead ends: 397
[2024-11-08 18:02:09,766 INFO L226 Difference]: Without dead ends: 397
[2024-11-08 18:02:09,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 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 18:02:09,768 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 32 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:09,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 262 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 18:02:09,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states.
[2024-11-08 18:02:09,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397.
[2024-11-08 18:02:09,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 318 states have (on average 1.6981132075471699) internal successors, (540), 382 states have internal predecessors, (540), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 18:02:09,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 560 transitions.
[2024-11-08 18:02:09,783 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 560 transitions. Word has length 24
[2024-11-08 18:02:09,783 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:09,783 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 560 transitions.
[2024-11-08 18:02:09,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:09,784 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 560 transitions.
[2024-11-08 18:02:09,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-08 18:02:09,785 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:09,785 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 18:02:09,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2024-11-08 18:02:09,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:09,986 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:09,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:09,986 INFO L85 PathProgramCache]: Analyzing trace with hash -519420612, now seen corresponding path program 1 times
[2024-11-08 18:02:09,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:09,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [368390006]
[2024-11-08 18:02:09,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:09,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:09,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:09,988 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:09,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-11-08 18:02:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:10,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:10,132 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:10,140 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 18:02:10,279 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 18:02:10,279 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:10,279 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:10,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368390006]
[2024-11-08 18:02:10,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368390006] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:10,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:10,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 18:02:10,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419010710]
[2024-11-08 18:02:10,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:10,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:02:10,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:10,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:02:10,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:02:10,282 INFO L87 Difference]: Start difference. First operand 397 states and 560 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:10,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:10,842 INFO L93 Difference]: Finished difference Result 455 states and 639 transitions.
[2024-11-08 18:02:10,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 18:02:10,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24
[2024-11-08 18:02:10,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:10,845 INFO L225 Difference]: With dead ends: 455
[2024-11-08 18:02:10,845 INFO L226 Difference]: Without dead ends: 455
[2024-11-08 18:02:10,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:02:10,846 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 59 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:10,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 398 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 18:02:10,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states.
[2024-11-08 18:02:10,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 446.
[2024-11-08 18:02:10,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 368 states have (on average 1.6820652173913044) internal successors, (619), 431 states have internal predecessors, (619), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 18:02:10,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 639 transitions.
[2024-11-08 18:02:10,864 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 639 transitions. Word has length 24
[2024-11-08 18:02:10,864 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:10,864 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 639 transitions.
[2024-11-08 18:02:10,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:10,865 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 639 transitions.
[2024-11-08 18:02:10,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-11-08 18:02:10,867 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:10,867 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]
[2024-11-08 18:02:10,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-11-08 18:02:11,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:11,068 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:11,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:11,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1552143185, now seen corresponding path program 1 times
[2024-11-08 18:02:11,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:11,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1306299912]
[2024-11-08 18:02:11,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:11,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:11,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:11,072 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:11,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-11-08 18:02:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:11,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:11,191 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:11,232 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 18:02:11,233 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:11,233 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:11,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306299912]
[2024-11-08 18:02:11,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306299912] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:11,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:11,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 18:02:11,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412279223]
[2024-11-08 18:02:11,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:11,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:02:11,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:11,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:02:11,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:02:11,236 INFO L87 Difference]: Start difference. First operand 446 states and 639 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:11,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:11,621 INFO L93 Difference]: Finished difference Result 451 states and 638 transitions.
[2024-11-08 18:02:11,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 18:02:11,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25
[2024-11-08 18:02:11,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:11,625 INFO L225 Difference]: With dead ends: 451
[2024-11-08 18:02:11,625 INFO L226 Difference]: Without dead ends: 451
[2024-11-08 18:02:11,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 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 18:02:11,629 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 36 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:11,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 403 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 18:02:11,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states.
[2024-11-08 18:02:11,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 445.
[2024-11-08 18:02:11,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 373 states have (on average 1.6353887399463807) internal successors, (610), 430 states have internal predecessors, (610), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 18:02:11,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 630 transitions.
[2024-11-08 18:02:11,647 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 630 transitions. Word has length 25
[2024-11-08 18:02:11,648 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:11,648 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 630 transitions.
[2024-11-08 18:02:11,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:11,649 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 630 transitions.
[2024-11-08 18:02:11,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-11-08 18:02:11,651 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:11,651 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]
[2024-11-08 18:02:11,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2024-11-08 18:02:11,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:11,856 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:11,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:11,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1552143184, now seen corresponding path program 1 times
[2024-11-08 18:02:11,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:11,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369812541]
[2024-11-08 18:02:11,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:11,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:11,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:11,860 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:11,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-11-08 18:02:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:11,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:11,975 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:12,308 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 18:02:12,308 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:12,308 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:12,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369812541]
[2024-11-08 18:02:12,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369812541] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:12,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:12,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:02:12,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557895565]
[2024-11-08 18:02:12,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:12,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:02:12,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:12,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:02:12,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:02:12,313 INFO L87 Difference]: Start difference. First operand 445 states and 630 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:12,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:12,899 INFO L93 Difference]: Finished difference Result 469 states and 628 transitions.
[2024-11-08 18:02:12,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 18:02:12,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25
[2024-11-08 18:02:12,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:12,902 INFO L225 Difference]: With dead ends: 469
[2024-11-08 18:02:12,902 INFO L226 Difference]: Without dead ends: 469
[2024-11-08 18:02:12,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 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 18:02:12,903 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 100 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:12,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 420 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 18:02:12,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states.
[2024-11-08 18:02:12,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 445.
[2024-11-08 18:02:12,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 373 states have (on average 1.616621983914209) internal successors, (603), 430 states have internal predecessors, (603), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 18:02:12,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 623 transitions.
[2024-11-08 18:02:12,918 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 623 transitions. Word has length 25
[2024-11-08 18:02:12,918 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:12,918 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 623 transitions.
[2024-11-08 18:02:12,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:12,919 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 623 transitions.
[2024-11-08 18:02:12,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-11-08 18:02:12,920 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:12,920 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]
[2024-11-08 18:02:12,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2024-11-08 18:02:13,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:13,121 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:13,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:13,121 INFO L85 PathProgramCache]: Analyzing trace with hash -2066854754, now seen corresponding path program 1 times
[2024-11-08 18:02:13,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:13,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [14857061]
[2024-11-08 18:02:13,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:13,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:13,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:13,123 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:13,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-11-08 18:02:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:13,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:13,240 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:13,292 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 18:02:13,292 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:13,292 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:13,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14857061]
[2024-11-08 18:02:13,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14857061] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:13,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:13,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 18:02:13,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120311448]
[2024-11-08 18:02:13,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:13,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:02:13,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:13,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:02:13,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:02:13,297 INFO L87 Difference]: Start difference. First operand 445 states and 623 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:13,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:13,345 INFO L93 Difference]: Finished difference Result 496 states and 678 transitions.
[2024-11-08 18:02:13,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:02:13,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25
[2024-11-08 18:02:13,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:13,349 INFO L225 Difference]: With dead ends: 496
[2024-11-08 18:02:13,349 INFO L226 Difference]: Without dead ends: 496
[2024-11-08 18:02:13,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:02:13,350 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 48 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:13,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 874 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 18:02:13,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states.
[2024-11-08 18:02:13,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 445.
[2024-11-08 18:02:13,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 373 states have (on average 1.6058981233243967) internal successors, (599), 430 states have internal predecessors, (599), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 18:02:13,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 619 transitions.
[2024-11-08 18:02:13,364 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 619 transitions. Word has length 25
[2024-11-08 18:02:13,364 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:13,365 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 619 transitions.
[2024-11-08 18:02:13,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:13,365 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 619 transitions.
[2024-11-08 18:02:13,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-11-08 18:02:13,366 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:13,366 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]
[2024-11-08 18:02:13,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0
[2024-11-08 18:02:13,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:13,567 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:13,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:13,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1386796384, now seen corresponding path program 1 times
[2024-11-08 18:02:13,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:13,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747823773]
[2024-11-08 18:02:13,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:13,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:13,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:13,570 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:13,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2024-11-08 18:02:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:13,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:13,689 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:13,745 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 18:02:13,746 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:13,746 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:13,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747823773]
[2024-11-08 18:02:13,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747823773] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:13,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:13,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 18:02:13,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587174883]
[2024-11-08 18:02:13,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:13,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:02:13,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:13,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:02:13,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:02:13,752 INFO L87 Difference]: Start difference. First operand 445 states and 619 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:13,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:13,797 INFO L93 Difference]: Finished difference Result 390 states and 526 transitions.
[2024-11-08 18:02:13,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:02:13,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25
[2024-11-08 18:02:13,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:13,800 INFO L225 Difference]: With dead ends: 390
[2024-11-08 18:02:13,800 INFO L226 Difference]: Without dead ends: 390
[2024-11-08 18:02:13,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-08 18:02:13,801 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 49 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:13,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 819 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 18:02:13,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states.
[2024-11-08 18:02:13,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390.
[2024-11-08 18:02:13,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 319 states have (on average 1.5862068965517242) internal successors, (506), 375 states have internal predecessors, (506), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 18:02:13,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 526 transitions.
[2024-11-08 18:02:13,813 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 526 transitions. Word has length 25
[2024-11-08 18:02:13,813 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:13,813 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 526 transitions.
[2024-11-08 18:02:13,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:13,814 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 526 transitions.
[2024-11-08 18:02:13,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-08 18:02:13,814 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:13,815 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 18:02:13,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0
[2024-11-08 18:02:14,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:14,019 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:14,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:14,019 INFO L85 PathProgramCache]: Analyzing trace with hash -947000130, now seen corresponding path program 1 times
[2024-11-08 18:02:14,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:14,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [722807313]
[2024-11-08 18:02:14,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:14,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:14,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:14,023 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:14,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2024-11-08 18:02:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:14,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:14,162 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:14,169 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 18:02:14,339 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 18:02:14,340 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:14,340 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:14,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722807313]
[2024-11-08 18:02:14,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722807313] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:14,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:14,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 18:02:14,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053226344]
[2024-11-08 18:02:14,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:14,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:02:14,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:14,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:02:14,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:02:14,342 INFO L87 Difference]: Start difference. First operand 390 states and 526 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:14,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:14,675 INFO L93 Difference]: Finished difference Result 389 states and 523 transitions.
[2024-11-08 18:02:14,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 18:02:14,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26
[2024-11-08 18:02:14,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:14,678 INFO L225 Difference]: With dead ends: 389
[2024-11-08 18:02:14,678 INFO L226 Difference]: Without dead ends: 389
[2024-11-08 18:02:14,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:02:14,678 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 53 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:14,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 258 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 18:02:14,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states.
[2024-11-08 18:02:14,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389.
[2024-11-08 18:02:14,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 319 states have (on average 1.5768025078369905) internal successors, (503), 374 states have internal predecessors, (503), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 18:02:14,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 523 transitions.
[2024-11-08 18:02:14,690 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 523 transitions. Word has length 26
[2024-11-08 18:02:14,690 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:14,690 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 523 transitions.
[2024-11-08 18:02:14,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:14,691 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 523 transitions.
[2024-11-08 18:02:14,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-08 18:02:14,691 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:14,692 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 18:02:14,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0
[2024-11-08 18:02:14,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:14,892 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:14,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:14,893 INFO L85 PathProgramCache]: Analyzing trace with hash -947000324, now seen corresponding path program 1 times
[2024-11-08 18:02:14,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:14,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1500536408]
[2024-11-08 18:02:14,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:14,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:14,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:14,895 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:14,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2024-11-08 18:02:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:15,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:15,014 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:15,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:02:15,179 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:15,179 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:15,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500536408]
[2024-11-08 18:02:15,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500536408] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:15,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:15,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 18:02:15,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499424605]
[2024-11-08 18:02:15,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:15,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 18:02:15,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:15,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 18:02:15,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-08 18:02:15,181 INFO L87 Difference]: Start difference. First operand 389 states and 523 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:15,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:15,889 INFO L93 Difference]: Finished difference Result 419 states and 557 transitions.
[2024-11-08 18:02:15,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 18:02:15,890 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26
[2024-11-08 18:02:15,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:15,891 INFO L225 Difference]: With dead ends: 419
[2024-11-08 18:02:15,891 INFO L226 Difference]: Without dead ends: 419
[2024-11-08 18:02:15,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2024-11-08 18:02:15,892 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 10 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:15,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 871 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 18:02:15,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states.
[2024-11-08 18:02:15,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 416.
[2024-11-08 18:02:15,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 346 states have (on average 1.5433526011560694) internal successors, (534), 401 states have internal predecessors, (534), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 18:02:15,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 554 transitions.
[2024-11-08 18:02:15,903 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 554 transitions. Word has length 26
[2024-11-08 18:02:15,904 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:15,904 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 554 transitions.
[2024-11-08 18:02:15,904 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:15,904 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 554 transitions.
[2024-11-08 18:02:15,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2024-11-08 18:02:15,906 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:15,906 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 18:02:15,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0
[2024-11-08 18:02:16,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:16,107 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:16,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:16,109 INFO L85 PathProgramCache]: Analyzing trace with hash -279533975, now seen corresponding path program 1 times
[2024-11-08 18:02:16,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:16,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1090614303]
[2024-11-08 18:02:16,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:16,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:16,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:16,114 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:16,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2024-11-08 18:02:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:16,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:16,245 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:16,705 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 18:02:16,706 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:16,706 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:16,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090614303]
[2024-11-08 18:02:16,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090614303] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:16,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:16,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 18:02:16,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919406506]
[2024-11-08 18:02:16,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:16,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:02:16,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:16,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:02:16,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:02:16,708 INFO L87 Difference]: Start difference. First operand 416 states and 554 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:17,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:17,440 INFO L93 Difference]: Finished difference Result 438 states and 557 transitions.
[2024-11-08 18:02:17,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:02:17,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28
[2024-11-08 18:02:17,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:17,443 INFO L225 Difference]: With dead ends: 438
[2024-11-08 18:02:17,443 INFO L226 Difference]: Without dead ends: 438
[2024-11-08 18:02:17,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-08 18:02:17,444 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 94 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:17,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 591 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 18:02:17,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states.
[2024-11-08 18:02:17,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 416.
[2024-11-08 18:02:17,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 346 states have (on average 1.5375722543352601) internal successors, (532), 401 states have internal predecessors, (532), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 18:02:17,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 552 transitions.
[2024-11-08 18:02:17,456 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 552 transitions. Word has length 28
[2024-11-08 18:02:17,456 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:17,456 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 552 transitions.
[2024-11-08 18:02:17,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:17,457 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 552 transitions.
[2024-11-08 18:02:17,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2024-11-08 18:02:17,457 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:17,458 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, 1]
[2024-11-08 18:02:17,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0
[2024-11-08 18:02:17,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:17,659 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:17,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:17,659 INFO L85 PathProgramCache]: Analyzing trace with hash -75641290, now seen corresponding path program 1 times
[2024-11-08 18:02:17,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:17,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1672351276]
[2024-11-08 18:02:17,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:17,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:17,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:17,661 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:17,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2024-11-08 18:02:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:17,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:17,771 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:17,881 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 18:02:17,882 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:17,882 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:17,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672351276]
[2024-11-08 18:02:17,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672351276] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:17,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:17,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 18:02:17,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464191201]
[2024-11-08 18:02:17,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:17,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 18:02:17,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:17,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 18:02:17,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 18:02:17,884 INFO L87 Difference]: Start difference. First operand 416 states and 552 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:18,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:18,353 INFO L93 Difference]: Finished difference Result 453 states and 581 transitions.
[2024-11-08 18:02:18,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 18:02:18,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29
[2024-11-08 18:02:18,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:18,358 INFO L225 Difference]: With dead ends: 453
[2024-11-08 18:02:18,358 INFO L226 Difference]: Without dead ends: 453
[2024-11-08 18:02:18,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-08 18:02:18,359 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 87 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:18,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 630 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 18:02:18,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states.
[2024-11-08 18:02:18,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 416.
[2024-11-08 18:02:18,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 346 states have (on average 1.5346820809248556) internal successors, (531), 401 states have internal predecessors, (531), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-08 18:02:18,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 551 transitions.
[2024-11-08 18:02:18,369 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 551 transitions. Word has length 29
[2024-11-08 18:02:18,369 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:18,370 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 551 transitions.
[2024-11-08 18:02:18,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:18,370 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 551 transitions.
[2024-11-08 18:02:18,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2024-11-08 18:02:18,371 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:18,371 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, 1, 1]
[2024-11-08 18:02:18,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0
[2024-11-08 18:02:18,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:18,572 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:18,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:18,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1950795561, now seen corresponding path program 1 times
[2024-11-08 18:02:18,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:18,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1236802875]
[2024-11-08 18:02:18,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:18,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:18,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:18,574 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:18,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2024-11-08 18:02:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:18,706 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:18,708 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:18,974 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 18:02:18,974 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:18,975 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:18,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236802875]
[2024-11-08 18:02:18,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236802875] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:18,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:18,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 18:02:18,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286763180]
[2024-11-08 18:02:18,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:18,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 18:02:18,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:18,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 18:02:18,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-08 18:02:18,978 INFO L87 Difference]: Start difference. First operand 416 states and 551 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:19,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:19,608 INFO L93 Difference]: Finished difference Result 317 states and 405 transitions.
[2024-11-08 18:02:19,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 18:02:19,608 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30
[2024-11-08 18:02:19,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:19,610 INFO L225 Difference]: With dead ends: 317
[2024-11-08 18:02:19,610 INFO L226 Difference]: Without dead ends: 317
[2024-11-08 18:02:19,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156
[2024-11-08 18:02:19,611 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 36 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:19,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 1100 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 18:02:19,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states.
[2024-11-08 18:02:19,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 313.
[2024-11-08 18:02:19,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 249 states have (on average 1.5622489959839359) internal successors, (389), 303 states have internal predecessors, (389), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 18:02:19,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 401 transitions.
[2024-11-08 18:02:19,620 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 401 transitions. Word has length 30
[2024-11-08 18:02:19,620 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:19,620 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 401 transitions.
[2024-11-08 18:02:19,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:19,620 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 401 transitions.
[2024-11-08 18:02:19,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2024-11-08 18:02:19,621 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:19,621 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, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:02:19,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0
[2024-11-08 18:02:19,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:19,822 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:19,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:19,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1795288470, now seen corresponding path program 1 times
[2024-11-08 18:02:19,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:19,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725585135]
[2024-11-08 18:02:19,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:19,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:19,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:19,825 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:19,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2024-11-08 18:02:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:19,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:19,964 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:20,014 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 18:02:20,014 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:20,014 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:20,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725585135]
[2024-11-08 18:02:20,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725585135] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:20,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:20,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 18:02:20,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94816830]
[2024-11-08 18:02:20,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:20,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:02:20,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:20,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:02:20,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:02:20,016 INFO L87 Difference]: Start difference. First operand 313 states and 401 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:20,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:20,563 INFO L93 Difference]: Finished difference Result 314 states and 401 transitions.
[2024-11-08 18:02:20,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:02:20,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34
[2024-11-08 18:02:20,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:20,565 INFO L225 Difference]: With dead ends: 314
[2024-11-08 18:02:20,565 INFO L226 Difference]: Without dead ends: 314
[2024-11-08 18:02:20,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:02:20,566 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 53 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:20,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 566 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 18:02:20,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states.
[2024-11-08 18:02:20,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 312.
[2024-11-08 18:02:20,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 249 states have (on average 1.5542168674698795) internal successors, (387), 302 states have internal predecessors, (387), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 18:02:20,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 399 transitions.
[2024-11-08 18:02:20,574 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 399 transitions. Word has length 34
[2024-11-08 18:02:20,575 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:20,575 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 399 transitions.
[2024-11-08 18:02:20,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:20,575 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 399 transitions.
[2024-11-08 18:02:20,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2024-11-08 18:02:20,576 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:20,576 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, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:02:20,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0
[2024-11-08 18:02:20,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:20,777 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:20,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:20,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1795288469, now seen corresponding path program 1 times
[2024-11-08 18:02:20,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:20,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021081473]
[2024-11-08 18:02:20,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:20,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:20,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:20,780 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:20,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process
[2024-11-08 18:02:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:20,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:20,935 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:20,944 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 18:02:21,133 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 18:02:21,134 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:21,134 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:21,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021081473]
[2024-11-08 18:02:21,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021081473] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:21,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:21,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 18:02:21,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556945585]
[2024-11-08 18:02:21,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:21,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:02:21,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:21,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:02:21,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:02:21,137 INFO L87 Difference]: Start difference. First operand 312 states and 399 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:21,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:21,789 INFO L93 Difference]: Finished difference Result 313 states and 399 transitions.
[2024-11-08 18:02:21,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:02:21,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34
[2024-11-08 18:02:21,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:21,792 INFO L225 Difference]: With dead ends: 313
[2024-11-08 18:02:21,792 INFO L226 Difference]: Without dead ends: 313
[2024-11-08 18:02:21,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:02:21,793 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 43 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:21,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 586 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 18:02:21,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states.
[2024-11-08 18:02:21,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 311.
[2024-11-08 18:02:21,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 249 states have (on average 1.5461847389558232) internal successors, (385), 301 states have internal predecessors, (385), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 18:02:21,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 397 transitions.
[2024-11-08 18:02:21,800 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 397 transitions. Word has length 34
[2024-11-08 18:02:21,800 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:21,801 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 397 transitions.
[2024-11-08 18:02:21,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:21,801 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 397 transitions.
[2024-11-08 18:02:21,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2024-11-08 18:02:21,802 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:21,802 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, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:02:21,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0
[2024-11-08 18:02:22,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:22,003 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:22,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:22,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1304637068, now seen corresponding path program 1 times
[2024-11-08 18:02:22,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:22,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [615087705]
[2024-11-08 18:02:22,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:22,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:22,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:22,006 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:22,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process
[2024-11-08 18:02:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:22,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:22,154 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:22,233 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 18:02:22,233 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:22,233 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:22,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615087705]
[2024-11-08 18:02:22,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615087705] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:22,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:22,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 18:02:22,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617520940]
[2024-11-08 18:02:22,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:22,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:02:22,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:22,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:02:22,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:02:22,237 INFO L87 Difference]: Start difference. First operand 311 states and 397 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:22,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:22,738 INFO L93 Difference]: Finished difference Result 349 states and 441 transitions.
[2024-11-08 18:02:22,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 18:02:22,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36
[2024-11-08 18:02:22,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:22,740 INFO L225 Difference]: With dead ends: 349
[2024-11-08 18:02:22,740 INFO L226 Difference]: Without dead ends: 349
[2024-11-08 18:02:22,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 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 18:02:22,741 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 82 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:22,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 362 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 18:02:22,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states.
[2024-11-08 18:02:22,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 339.
[2024-11-08 18:02:22,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 280 states have (on average 1.525) internal successors, (427), 329 states have internal predecessors, (427), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 18:02:22,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 439 transitions.
[2024-11-08 18:02:22,751 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 439 transitions. Word has length 36
[2024-11-08 18:02:22,751 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:22,751 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 439 transitions.
[2024-11-08 18:02:22,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:22,752 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 439 transitions.
[2024-11-08 18:02:22,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2024-11-08 18:02:22,753 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:22,753 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, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:02:22,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0
[2024-11-08 18:02:22,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:22,954 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:22,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:22,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1304637069, now seen corresponding path program 1 times
[2024-11-08 18:02:22,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:22,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1753935124]
[2024-11-08 18:02:22,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:22,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:22,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:22,958 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:22,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process
[2024-11-08 18:02:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:23,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:23,091 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:23,323 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 18:02:23,324 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 18:02:23,551 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 18:02:23,551 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:23,551 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:23,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753935124]
[2024-11-08 18:02:23,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753935124] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:23,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:23,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 18:02:23,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794026665]
[2024-11-08 18:02:23,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:23,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 18:02:23,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:23,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 18:02:23,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-08 18:02:23,553 INFO L87 Difference]: Start difference. First operand 339 states and 439 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:24,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:24,625 INFO L93 Difference]: Finished difference Result 417 states and 491 transitions.
[2024-11-08 18:02:24,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 18:02:24,626 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36
[2024-11-08 18:02:24,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:24,627 INFO L225 Difference]: With dead ends: 417
[2024-11-08 18:02:24,627 INFO L226 Difference]: Without dead ends: 417
[2024-11-08 18:02:24,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-11-08 18:02:24,628 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 255 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:24,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 501 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-08 18:02:24,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states.
[2024-11-08 18:02:24,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 339.
[2024-11-08 18:02:24,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 280 states have (on average 1.5142857142857142) internal successors, (424), 329 states have internal predecessors, (424), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 18:02:24,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 436 transitions.
[2024-11-08 18:02:24,637 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 436 transitions. Word has length 36
[2024-11-08 18:02:24,637 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:24,638 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 436 transitions.
[2024-11-08 18:02:24,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:24,638 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 436 transitions.
[2024-11-08 18:02:24,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-11-08 18:02:24,639 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:24,639 INFO L215 NwaCegarLoop]: trace histogram [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]
[2024-11-08 18:02:24,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0
[2024-11-08 18:02:24,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:24,840 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:24,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:24,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1602110178, now seen corresponding path program 1 times
[2024-11-08 18:02:24,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:24,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1347330166]
[2024-11-08 18:02:24,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:24,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:24,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:24,843 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:24,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process
[2024-11-08 18:02:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:25,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:25,035 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:25,371 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:02:25,372 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:25,372 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:25,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347330166]
[2024-11-08 18:02:25,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347330166] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:25,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:25,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 18:02:25,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980506699]
[2024-11-08 18:02:25,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:25,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:02:25,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:25,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:02:25,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:02:25,374 INFO L87 Difference]: Start difference. First operand 339 states and 436 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:02:25,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:25,901 INFO L93 Difference]: Finished difference Result 335 states and 430 transitions.
[2024-11-08 18:02:25,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 18:02:25,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50
[2024-11-08 18:02:25,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:25,903 INFO L225 Difference]: With dead ends: 335
[2024-11-08 18:02:25,904 INFO L226 Difference]: Without dead ends: 335
[2024-11-08 18:02:25,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2024-11-08 18:02:25,905 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 195 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:25,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 294 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 18:02:25,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states.
[2024-11-08 18:02:25,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 333.
[2024-11-08 18:02:25,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 280 states have (on average 1.4857142857142858) internal successors, (416), 323 states have internal predecessors, (416), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 18:02:25,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 428 transitions.
[2024-11-08 18:02:25,911 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 428 transitions. Word has length 50
[2024-11-08 18:02:25,911 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:25,912 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 428 transitions.
[2024-11-08 18:02:25,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:02:25,912 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 428 transitions.
[2024-11-08 18:02:25,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2024-11-08 18:02:25,913 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:25,913 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:02:25,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0
[2024-11-08 18:02:26,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:26,114 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:26,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:26,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1746892735, now seen corresponding path program 1 times
[2024-11-08 18:02:26,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:26,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1739985762]
[2024-11-08 18:02:26,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:26,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:26,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:26,116 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:26,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process
[2024-11-08 18:02:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:26,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:26,287 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:26,384 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 18:02:26,385 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:02:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 18:02:26,544 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:26,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739985762]
[2024-11-08 18:02:26,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739985762] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:02:26,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 18:02:26,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-08 18:02:26,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781525202]
[2024-11-08 18:02:26,545 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:02:26,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 18:02:26,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:26,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 18:02:26,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-08 18:02:26,547 INFO L87 Difference]: Start difference. First operand 333 states and 428 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:02:26,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:26,661 INFO L93 Difference]: Finished difference Result 1179 states and 1508 transitions.
[2024-11-08 18:02:26,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 18:02:26,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51
[2024-11-08 18:02:26,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:26,667 INFO L225 Difference]: With dead ends: 1179
[2024-11-08 18:02:26,668 INFO L226 Difference]: Without dead ends: 1179
[2024-11-08 18:02:26,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2024-11-08 18:02:26,670 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 624 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:26,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 1340 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 18:02:26,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states.
[2024-11-08 18:02:26,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 769.
[2024-11-08 18:02:26,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 705 states have (on average 1.4709219858156029) internal successors, (1037), 748 states have internal predecessors, (1037), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2024-11-08 18:02:26,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1071 transitions.
[2024-11-08 18:02:26,691 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1071 transitions. Word has length 51
[2024-11-08 18:02:26,692 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:26,692 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 1071 transitions.
[2024-11-08 18:02:26,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:02:26,692 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1071 transitions.
[2024-11-08 18:02:26,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2024-11-08 18:02:26,693 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:26,694 INFO L215 NwaCegarLoop]: trace histogram [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]
[2024-11-08 18:02:26,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0
[2024-11-08 18:02:26,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:26,894 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:26,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:26,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1748739777, now seen corresponding path program 1 times
[2024-11-08 18:02:26,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:26,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [753893677]
[2024-11-08 18:02:26,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:26,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:26,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:26,896 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:26,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process
[2024-11-08 18:02:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:27,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:27,053 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:27,439 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:02:27,439 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:27,440 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:27,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753893677]
[2024-11-08 18:02:27,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753893677] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:27,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:27,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 18:02:27,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756667257]
[2024-11-08 18:02:27,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:27,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:02:27,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:27,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:02:27,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:02:27,442 INFO L87 Difference]: Start difference. First operand 769 states and 1071 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:27,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:27,891 INFO L93 Difference]: Finished difference Result 777 states and 1079 transitions.
[2024-11-08 18:02:27,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 18:02:27,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51
[2024-11-08 18:02:27,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:27,894 INFO L225 Difference]: With dead ends: 777
[2024-11-08 18:02:27,894 INFO L226 Difference]: Without dead ends: 777
[2024-11-08 18:02:27,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-08 18:02:27,895 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 307 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:27,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 304 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 18:02:27,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states.
[2024-11-08 18:02:27,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 771.
[2024-11-08 18:02:27,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 707 states have (on average 1.471004243281471) internal successors, (1040), 750 states have internal predecessors, (1040), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2024-11-08 18:02:27,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1074 transitions.
[2024-11-08 18:02:27,916 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1074 transitions. Word has length 51
[2024-11-08 18:02:27,916 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:27,917 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 1074 transitions.
[2024-11-08 18:02:27,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:27,917 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1074 transitions.
[2024-11-08 18:02:27,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2024-11-08 18:02:27,918 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:27,918 INFO L215 NwaCegarLoop]: trace histogram [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]
[2024-11-08 18:02:27,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0
[2024-11-08 18:02:28,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:28,119 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:28,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:28,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1748739715, now seen corresponding path program 1 times
[2024-11-08 18:02:28,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:28,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [911859876]
[2024-11-08 18:02:28,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:28,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:28,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:28,123 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:28,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process
[2024-11-08 18:02:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:28,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:28,274 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:28,581 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:02:28,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:28,581 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:28,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911859876]
[2024-11-08 18:02:28,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911859876] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:28,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:28,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 18:02:28,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731700774]
[2024-11-08 18:02:28,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:28,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:02:28,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:28,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:02:28,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:02:28,583 INFO L87 Difference]: Start difference. First operand 771 states and 1074 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:29,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:29,018 INFO L93 Difference]: Finished difference Result 776 states and 1077 transitions.
[2024-11-08 18:02:29,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 18:02:29,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51
[2024-11-08 18:02:29,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:29,021 INFO L225 Difference]: With dead ends: 776
[2024-11-08 18:02:29,021 INFO L226 Difference]: Without dead ends: 776
[2024-11-08 18:02:29,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-08 18:02:29,022 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 268 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:29,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 304 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 18:02:29,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states.
[2024-11-08 18:02:29,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 768.
[2024-11-08 18:02:29,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 705 states have (on average 1.4680851063829787) internal successors, (1035), 747 states have internal predecessors, (1035), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2024-11-08 18:02:29,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1069 transitions.
[2024-11-08 18:02:29,036 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1069 transitions. Word has length 51
[2024-11-08 18:02:29,036 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:29,036 INFO L471 AbstractCegarLoop]: Abstraction has 768 states and 1069 transitions.
[2024-11-08 18:02:29,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:02:29,037 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1069 transitions.
[2024-11-08 18:02:29,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-11-08 18:02:29,037 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:29,038 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:02:29,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0
[2024-11-08 18:02:29,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:29,238 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:29,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:29,239 INFO L85 PathProgramCache]: Analyzing trace with hash -301309593, now seen corresponding path program 1 times
[2024-11-08 18:02:29,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:29,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1742670866]
[2024-11-08 18:02:29,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:29,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:29,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:29,241 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:29,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process
[2024-11-08 18:02:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:29,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 37 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:29,432 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:29,716 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 18:02:29,956 INFO L349 Elim1Store]: treesize reduction 36, result has 35.7 percent of original size
[2024-11-08 18:02:29,957 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 25 treesize of output 28
[2024-11-08 18:02:30,048 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 18:02:30,065 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:02:30,065 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:02:30,304 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:30,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742670866]
[2024-11-08 18:02:30,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742670866] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:02:30,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [941877072]
[2024-11-08 18:02:30,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:30,305 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-08 18:02:30,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/cvc4
[2024-11-08 18:02:30,306 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-08 18:02:30,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process
[2024-11-08 18:02:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:30,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 51 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:30,693 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:31,447 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-08 18:02:31,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15
[2024-11-08 18:02:31,500 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-08 18:02:31,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15
[2024-11-08 18:02:31,668 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-08 18:02:31,669 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 20 treesize of output 19
[2024-11-08 18:02:31,710 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-08 18:02:31,710 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 20 treesize of output 19
[2024-11-08 18:02:31,859 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-08 18:02:31,860 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 20 treesize of output 19
[2024-11-08 18:02:31,897 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-08 18:02:31,897 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 20 treesize of output 19
[2024-11-08 18:02:32,109 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 19
[2024-11-08 18:02:32,130 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 19
[2024-11-08 18:02:32,371 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 15
[2024-11-08 18:02:33,001 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 18:02:33,001 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:02:33,083 INFO L349 Elim1Store]: treesize reduction 7, result has 50.0 percent of original size
[2024-11-08 18:02:33,083 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 20 treesize of output 19
[2024-11-08 18:02:34,890 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv4 32) |c_ULTIMATE.start_append_one_~list#1.offset|))) (and (forall ((|ULTIMATE.start_create_item_~item~0#1.base| (_ BitVec 32)) (v_ArrVal_305 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_305))) (store .cse2 |c_ULTIMATE.start_create_item_~cursor#1.base| (store (select .cse2 |c_ULTIMATE.start_create_item_~cursor#1.base|) |c_ULTIMATE.start_create_item_~cursor#1.offset| |ULTIMATE.start_create_item_~item~0#1.base|))))) (or (= (select (select .cse0 |c_ULTIMATE.start_append_one_~list#1.base|) .cse1) (_ bv0 32)) (= (select (select .cse0 |c_~#list~0.base|) |c_~#list~0.offset|) |c_~#list~0.base|)))) (forall ((|ULTIMATE.start_create_item_~item~0#1.base| (_ BitVec 32))) (or (forall ((|ULTIMATE.start_create_item_~head~0#1.offset| (_ BitVec 32)) (v_ArrVal_306 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (let ((.cse3 (store |c_#memory_$Pointer$#1.offset| |ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_306))) (store .cse3 |c_ULTIMATE.start_create_item_~cursor#1.base| (store (select .cse3 |c_ULTIMATE.start_create_item_~cursor#1.base|) |c_ULTIMATE.start_create_item_~cursor#1.offset| |ULTIMATE.start_create_item_~head~0#1.offset|))) |c_ULTIMATE.start_append_one_~list#1.base|) .cse1) (_ bv0 32))) (forall ((v_ArrVal_305 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_305))) (store .cse4 |c_ULTIMATE.start_create_item_~cursor#1.base| (store (select .cse4 |c_ULTIMATE.start_create_item_~cursor#1.base|) |c_ULTIMATE.start_create_item_~cursor#1.offset| |ULTIMATE.start_create_item_~item~0#1.base|))) |c_~#list~0.base|) |c_~#list~0.offset|) |c_~#list~0.base|)))))) is different from false
[2024-11-08 18:02:35,511 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv4 32) |c_~#list~0.offset|)) (.cse2 (bvadd (bvmul (_ bv4 32) |c_ULTIMATE.start_main_#t~ret30#1|) |c_~#list~0.offset|))) (and (forall ((|ULTIMATE.start_create_item_~item~0#1.base| (_ BitVec 32)) (v_ArrVal_305 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store (select (store |c_#memory_$Pointer$#1.base| |ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_305) |c_~#list~0.base|) .cse2 |ULTIMATE.start_create_item_~item~0#1.base|))) (or (= (select .cse0 .cse1) (_ bv0 32)) (= |c_~#list~0.base| (select .cse0 |c_~#list~0.offset|))))) (forall ((|ULTIMATE.start_create_item_~item~0#1.base| (_ BitVec 32))) (or (forall ((|ULTIMATE.start_create_item_~head~0#1.offset| (_ BitVec 32)) (v_ArrVal_306 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 32) (select (store (select (store |c_#memory_$Pointer$#1.offset| |ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_306) |c_~#list~0.base|) .cse2 |ULTIMATE.start_create_item_~head~0#1.offset|) .cse1))) (forall ((v_ArrVal_305 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_~#list~0.base| (select (store (select (store |c_#memory_$Pointer$#1.base| |ULTIMATE.start_create_item_~item~0#1.base| v_ArrVal_305) |c_~#list~0.base|) .cse2 |ULTIMATE.start_create_item_~item~0#1.base|) |c_~#list~0.offset|))))))) is different from false
[2024-11-08 18:02:35,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [941877072] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:02:35,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 18:02:35,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14] total 25
[2024-11-08 18:02:35,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311078152]
[2024-11-08 18:02:35,767 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:02:35,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2024-11-08 18:02:35,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:35,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2024-11-08 18:02:35,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1462, Unknown=18, NotChecked=158, Total=1806
[2024-11-08 18:02:35,769 INFO L87 Difference]: Start difference. First operand 768 states and 1069 transitions. Second operand has 27 states, 26 states have (on average 3.923076923076923) internal successors, (102), 22 states have internal predecessors, (102), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 18:02:39,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:39,739 INFO L93 Difference]: Finished difference Result 1791 states and 2491 transitions.
[2024-11-08 18:02:39,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states.
[2024-11-08 18:02:39,739 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.923076923076923) internal successors, (102), 22 states have internal predecessors, (102), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 55
[2024-11-08 18:02:39,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:39,743 INFO L225 Difference]: With dead ends: 1791
[2024-11-08 18:02:39,743 INFO L226 Difference]: Without dead ends: 1791
[2024-11-08 18:02:39,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=363, Invalid=2707, Unknown=18, NotChecked=218, Total=3306
[2024-11-08 18:02:39,745 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 811 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:39,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 2175 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2024-11-08 18:02:39,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states.
[2024-11-08 18:02:39,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1221.
[2024-11-08 18:02:39,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 1133 states have (on average 1.4368932038834952) internal successors, (1628), 1180 states have internal predecessors, (1628), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 33 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-08 18:02:39,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1704 transitions.
[2024-11-08 18:02:39,776 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1704 transitions. Word has length 55
[2024-11-08 18:02:39,777 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:39,777 INFO L471 AbstractCegarLoop]: Abstraction has 1221 states and 1704 transitions.
[2024-11-08 18:02:39,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.923076923076923) internal successors, (102), 22 states have internal predecessors, (102), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 18:02:39,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1704 transitions.
[2024-11-08 18:02:39,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-11-08 18:02:39,779 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:39,779 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:02:39,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0
[2024-11-08 18:02:39,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (34)] Forceful destruction successful, exit code 0
[2024-11-08 18:02:40,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt
[2024-11-08 18:02:40,184 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:40,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:40,185 INFO L85 PathProgramCache]: Analyzing trace with hash -301309592, now seen corresponding path program 1 times
[2024-11-08 18:02:40,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:40,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1693135617]
[2024-11-08 18:02:40,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:40,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:40,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:40,187 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:40,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process
[2024-11-08 18:02:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:40,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 33 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:40,421 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:40,791 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-08 18:02:40,791 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 18:02:41,193 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 18:02:41,215 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 16 treesize of output 11
[2024-11-08 18:02:41,278 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 18:02:41,297 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 18:02:41,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-08 18:02:41,374 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 18:02:41,502 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 18:02:41,511 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 18:02:41,646 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:02:41,646 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:41,646 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:41,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693135617]
[2024-11-08 18:02:41,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693135617] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:41,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:41,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-08 18:02:41,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563343146]
[2024-11-08 18:02:41,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:41,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-08 18:02:41,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:41,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-08 18:02:41,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2024-11-08 18:02:41,649 INFO L87 Difference]: Start difference. First operand 1221 states and 1704 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:02:42,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:42,789 INFO L93 Difference]: Finished difference Result 1038 states and 1418 transitions.
[2024-11-08 18:02:42,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 18:02:42,790 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 55
[2024-11-08 18:02:42,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:42,792 INFO L225 Difference]: With dead ends: 1038
[2024-11-08 18:02:42,792 INFO L226 Difference]: Without dead ends: 1038
[2024-11-08 18:02:42,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156
[2024-11-08 18:02:42,793 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 45 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:42,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 786 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-11-08 18:02:42,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states.
[2024-11-08 18:02:42,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1035.
[2024-11-08 18:02:42,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 960 states have (on average 1.4177083333333333) internal successors, (1361), 1002 states have internal predecessors, (1361), 27 states have call successors, (27), 5 states have call predecessors, (27), 5 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-08 18:02:42,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1415 transitions.
[2024-11-08 18:02:42,820 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1415 transitions. Word has length 55
[2024-11-08 18:02:42,821 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:42,821 INFO L471 AbstractCegarLoop]: Abstraction has 1035 states and 1415 transitions.
[2024-11-08 18:02:42,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:02:42,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1415 transitions.
[2024-11-08 18:02:42,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-08 18:02:42,825 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:42,826 INFO L215 NwaCegarLoop]: trace histogram [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]
[2024-11-08 18:02:42,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0
[2024-11-08 18:02:43,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:43,027 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:43,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:43,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2036847360, now seen corresponding path program 1 times
[2024-11-08 18:02:43,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:43,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [654543419]
[2024-11-08 18:02:43,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:43,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:43,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:43,029 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:43,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process
[2024-11-08 18:02:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:43,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 31 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:43,233 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:43,348 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2024-11-08 18:02:43,348 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 18:02:43,576 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 18:02:43,586 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 18:02:43,659 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 18:02:43,671 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 18:02:43,754 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 18:02:43,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-08 18:02:43,913 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:02:43,913 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:02:43,914 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:43,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654543419]
[2024-11-08 18:02:43,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654543419] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:02:43,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:02:43,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-11-08 18:02:43,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327588476]
[2024-11-08 18:02:43,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:02:43,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 18:02:43,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:43,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 18:02:43,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132
[2024-11-08 18:02:43,917 INFO L87 Difference]: Start difference. First operand 1035 states and 1415 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:02:45,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:45,393 INFO L93 Difference]: Finished difference Result 1153 states and 1546 transitions.
[2024-11-08 18:02:45,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-08 18:02:45,393 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56
[2024-11-08 18:02:45,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:45,396 INFO L225 Difference]: With dead ends: 1153
[2024-11-08 18:02:45,396 INFO L226 Difference]: Without dead ends: 1153
[2024-11-08 18:02:45,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420
[2024-11-08 18:02:45,397 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 208 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:45,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 788 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-08 18:02:45,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states.
[2024-11-08 18:02:45,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1041.
[2024-11-08 18:02:45,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 966 states have (on average 1.412008281573499) internal successors, (1364), 1008 states have internal predecessors, (1364), 27 states have call successors, (27), 5 states have call predecessors, (27), 5 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-08 18:02:45,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1418 transitions.
[2024-11-08 18:02:45,417 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1418 transitions. Word has length 56
[2024-11-08 18:02:45,417 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:45,418 INFO L471 AbstractCegarLoop]: Abstraction has 1041 states and 1418 transitions.
[2024-11-08 18:02:45,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:02:45,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1418 transitions.
[2024-11-08 18:02:45,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-08 18:02:45,419 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:45,420 INFO L215 NwaCegarLoop]: trace histogram [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]
[2024-11-08 18:02:45,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0
[2024-11-08 18:02:45,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:45,620 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:45,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:45,621 INFO L85 PathProgramCache]: Analyzing trace with hash 522765407, now seen corresponding path program 1 times
[2024-11-08 18:02:45,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:45,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [979683644]
[2024-11-08 18:02:45,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:45,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:45,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:45,623 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:45,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process
[2024-11-08 18:02:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:45,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 33 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:45,836 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:45,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2024-11-08 18:02:46,357 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 18:02:46,440 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 18:02:46,629 INFO L349 Elim1Store]: treesize reduction 36, result has 35.7 percent of original size
[2024-11-08 18:02:46,630 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 25 treesize of output 28
[2024-11-08 18:02:46,709 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 18:02:46,728 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:02:46,728 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:02:46,940 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:46,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979683644]
[2024-11-08 18:02:46,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979683644] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:02:46,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [655255050]
[2024-11-08 18:02:46,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:46,941 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-08 18:02:46,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/cvc4
[2024-11-08 18:02:46,942 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-08 18:02:46,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process
[2024-11-08 18:02:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:47,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 41 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:47,500 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:47,722 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2024-11-08 18:02:47,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20
[2024-11-08 18:02:48,419 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 18:02:48,569 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 18:02:48,973 INFO L349 Elim1Store]: treesize reduction 74, result has 29.5 percent of original size
[2024-11-08 18:02:48,973 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 32 treesize of output 44
[2024-11-08 18:02:49,140 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 18:02:49,195 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:02:49,195 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:02:49,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [655255050] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:02:49,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 18:02:49,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 24
[2024-11-08 18:02:49,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723020254]
[2024-11-08 18:02:49,343 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:02:49,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states
[2024-11-08 18:02:49,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:49,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants.
[2024-11-08 18:02:49,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812
[2024-11-08 18:02:49,345 INFO L87 Difference]: Start difference. First operand 1041 states and 1418 transitions. Second operand has 26 states, 25 states have (on average 4.24) internal successors, (106), 22 states have internal predecessors, (106), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 18:02:52,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:02:52,834 INFO L93 Difference]: Finished difference Result 1641 states and 2217 transitions.
[2024-11-08 18:02:52,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states.
[2024-11-08 18:02:52,835 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.24) internal successors, (106), 22 states have internal predecessors, (106), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 57
[2024-11-08 18:02:52,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:02:52,841 INFO L225 Difference]: With dead ends: 1641
[2024-11-08 18:02:52,841 INFO L226 Difference]: Without dead ends: 1641
[2024-11-08 18:02:52,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=215, Invalid=1117, Unknown=0, NotChecked=0, Total=1332
[2024-11-08 18:02:52,843 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 783 mSDsluCounter, 2106 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 2255 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-11-08 18:02:52,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 2255 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-11-08 18:02:52,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states.
[2024-11-08 18:02:52,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1056.
[2024-11-08 18:02:52,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 981 states have (on average 1.4108053007135577) internal successors, (1384), 1023 states have internal predecessors, (1384), 27 states have call successors, (27), 5 states have call predecessors, (27), 5 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-08 18:02:52,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1438 transitions.
[2024-11-08 18:02:52,913 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1438 transitions. Word has length 57
[2024-11-08 18:02:52,914 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:02:52,914 INFO L471 AbstractCegarLoop]: Abstraction has 1056 states and 1438 transitions.
[2024-11-08 18:02:52,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.24) internal successors, (106), 22 states have internal predecessors, (106), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 18:02:52,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1438 transitions.
[2024-11-08 18:02:52,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-08 18:02:52,916 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:02:52,916 INFO L215 NwaCegarLoop]: trace histogram [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]
[2024-11-08 18:02:52,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0
[2024-11-08 18:02:53,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0
[2024-11-08 18:02:53,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt
[2024-11-08 18:02:53,317 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:02:53,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:02:53,317 INFO L85 PathProgramCache]: Analyzing trace with hash 522765408, now seen corresponding path program 1 times
[2024-11-08 18:02:53,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:02:53,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [979846010]
[2024-11-08 18:02:53,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:53,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:02:53,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:02:53,319 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:02:53,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process
[2024-11-08 18:02:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:53,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 45 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:53,554 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:53,591 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 18:02:53,601 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 18:02:54,453 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 18:02:54,463 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 18:02:54,589 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 36 treesize of output 20
[2024-11-08 18:02:54,608 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 18:02:54,922 INFO L349 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size
[2024-11-08 18:02:54,922 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 17 treesize of output 17
[2024-11-08 18:02:54,929 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 18 treesize of output 13
[2024-11-08 18:02:55,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9
[2024-11-08 18:02:55,137 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:02:55,137 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:02:55,875 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:02:55,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979846010]
[2024-11-08 18:02:55,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979846010] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:02:55,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1489991086]
[2024-11-08 18:02:55,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:02:55,876 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-08 18:02:55,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/cvc4
[2024-11-08 18:02:55,877 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-08 18:02:55,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process
[2024-11-08 18:02:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:02:56,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 51 conjuncts are in the unsatisfiable core
[2024-11-08 18:02:56,497 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:02:56,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-08 18:02:56,791 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 18:02:57,862 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 18:02:57,878 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 18:02:58,053 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 18:02:58,063 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 36 treesize of output 20
[2024-11-08 18:02:58,573 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 18:02:58,574 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 18 treesize of output 13
[2024-11-08 18:02:58,592 INFO L349 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size
[2024-11-08 18:02:58,592 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 17 treesize of output 17
[2024-11-08 18:02:58,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9
[2024-11-08 18:02:58,892 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:02:58,892 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:02:59,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1489991086] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:02:59,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 18:02:59,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 25
[2024-11-08 18:02:59,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137514874]
[2024-11-08 18:02:59,241 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:02:59,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2024-11-08 18:02:59,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:02:59,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2024-11-08 18:02:59,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=861, Unknown=0, NotChecked=0, Total=992
[2024-11-08 18:02:59,243 INFO L87 Difference]: Start difference. First operand 1056 states and 1438 transitions. Second operand has 27 states, 26 states have (on average 4.038461538461538) internal successors, (105), 23 states have internal predecessors, (105), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 18:03:02,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:03:02,852 INFO L93 Difference]: Finished difference Result 1498 states and 2059 transitions.
[2024-11-08 18:03:02,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-08 18:03:02,853 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.038461538461538) internal successors, (105), 23 states have internal predecessors, (105), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 57
[2024-11-08 18:03:02,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:03:02,857 INFO L225 Difference]: With dead ends: 1498
[2024-11-08 18:03:02,857 INFO L226 Difference]: Without dead ends: 1498
[2024-11-08 18:03:02,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=209, Invalid=1123, Unknown=0, NotChecked=0, Total=1332
[2024-11-08 18:03:02,858 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 619 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2024-11-08 18:03:02,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 1697 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2024-11-08 18:03:02,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states.
[2024-11-08 18:03:02,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1230.
[2024-11-08 18:03:02,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 1143 states have (on average 1.398950131233596) internal successors, (1599), 1185 states have internal predecessors, (1599), 37 states have call successors, (37), 7 states have call predecessors, (37), 7 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37)
[2024-11-08 18:03:02,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1673 transitions.
[2024-11-08 18:03:02,876 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1673 transitions. Word has length 57
[2024-11-08 18:03:02,877 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:03:02,877 INFO L471 AbstractCegarLoop]: Abstraction has 1230 states and 1673 transitions.
[2024-11-08 18:03:02,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.038461538461538) internal successors, (105), 23 states have internal predecessors, (105), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 18:03:02,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1673 transitions.
[2024-11-08 18:03:02,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-08 18:03:02,878 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:03:02,878 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:03:02,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0
[2024-11-08 18:03:03,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0
[2024-11-08 18:03:03,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/cvc4 --incremental --print-success --lang smt,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:03:03,279 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:03:03,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:03:03,280 INFO L85 PathProgramCache]: Analyzing trace with hash 821050715, now seen corresponding path program 1 times
[2024-11-08 18:03:03,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:03:03,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1460220071]
[2024-11-08 18:03:03,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:03:03,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:03:03,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:03:03,283 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:03:03,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process
[2024-11-08 18:03:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:03:03,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-11-08 18:03:03,513 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:03:03,554 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 18:03:03,993 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 15 treesize of output 1
[2024-11-08 18:03:04,070 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 18:03:04,231 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 18:03:04,272 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:03:04,272 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:03:04,272 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:03:04,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460220071]
[2024-11-08 18:03:04,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460220071] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:03:04,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:03:04,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-11-08 18:03:04,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784355592]
[2024-11-08 18:03:04,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:03:04,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 18:03:04,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:03:04,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 18:03:04,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2024-11-08 18:03:04,274 INFO L87 Difference]: Start difference. First operand 1230 states and 1673 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:03:05,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:03:05,888 INFO L93 Difference]: Finished difference Result 1474 states and 2024 transitions.
[2024-11-08 18:03:05,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-11-08 18:03:05,888 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57
[2024-11-08 18:03:05,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:03:05,892 INFO L225 Difference]: With dead ends: 1474
[2024-11-08 18:03:05,892 INFO L226 Difference]: Without dead ends: 1474
[2024-11-08 18:03:05,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272
[2024-11-08 18:03:05,893 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 420 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-08 18:03:05,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 1129 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-08 18:03:05,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states.
[2024-11-08 18:03:05,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1239.
[2024-11-08 18:03:05,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 1153 states have (on average 1.3998265394622724) internal successors, (1614), 1194 states have internal predecessors, (1614), 37 states have call successors, (37), 7 states have call predecessors, (37), 7 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37)
[2024-11-08 18:03:05,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1688 transitions.
[2024-11-08 18:03:05,911 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1688 transitions. Word has length 57
[2024-11-08 18:03:05,911 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:03:05,911 INFO L471 AbstractCegarLoop]: Abstraction has 1239 states and 1688 transitions.
[2024-11-08 18:03:05,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:03:05,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1688 transitions.
[2024-11-08 18:03:05,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-08 18:03:05,913 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:03:05,913 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:03:05,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0
[2024-11-08 18:03:06,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:03:06,114 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:03:06,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:03:06,114 INFO L85 PathProgramCache]: Analyzing trace with hash 821050716, now seen corresponding path program 1 times
[2024-11-08 18:03:06,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:03:06,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1189734036]
[2024-11-08 18:03:06,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:03:06,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:03:06,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:03:06,116 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:03:06,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process
[2024-11-08 18:03:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:03:06,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 30 conjuncts are in the unsatisfiable core
[2024-11-08 18:03:06,351 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:03:06,386 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 18:03:07,042 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 18:03:07,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-08 18:03:07,155 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 18:03:07,164 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 18:03:07,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9
[2024-11-08 18:03:07,509 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:03:07,510 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:03:07,510 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:03:07,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189734036]
[2024-11-08 18:03:07,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189734036] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:03:07,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:03:07,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-11-08 18:03:07,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020323758]
[2024-11-08 18:03:07,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:03:07,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 18:03:07,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:03:07,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 18:03:07,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2024-11-08 18:03:07,512 INFO L87 Difference]: Start difference. First operand 1239 states and 1688 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:03:09,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:03:09,572 INFO L93 Difference]: Finished difference Result 1597 states and 2207 transitions.
[2024-11-08 18:03:09,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-08 18:03:09,573 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57
[2024-11-08 18:03:09,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:03:09,577 INFO L225 Difference]: With dead ends: 1597
[2024-11-08 18:03:09,577 INFO L226 Difference]: Without dead ends: 1597
[2024-11-08 18:03:09,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240
[2024-11-08 18:03:09,577 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 435 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2024-11-08 18:03:09,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 1235 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2024-11-08 18:03:09,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1597 states.
[2024-11-08 18:03:09,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1597 to 1369.
[2024-11-08 18:03:09,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 1277 states have (on average 1.4166014095536414) internal successors, (1809), 1320 states have internal predecessors, (1809), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42)
[2024-11-08 18:03:09,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1893 transitions.
[2024-11-08 18:03:09,592 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1893 transitions. Word has length 57
[2024-11-08 18:03:09,592 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:03:09,592 INFO L471 AbstractCegarLoop]: Abstraction has 1369 states and 1893 transitions.
[2024-11-08 18:03:09,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:03:09,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1893 transitions.
[2024-11-08 18:03:09,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-08 18:03:09,593 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:03:09,594 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:03:09,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0
[2024-11-08 18:03:09,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:03:09,794 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:03:09,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:03:09,795 INFO L85 PathProgramCache]: Analyzing trace with hash 821067500, now seen corresponding path program 1 times
[2024-11-08 18:03:09,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:03:09,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1409358597]
[2024-11-08 18:03:09,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:03:09,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:03:09,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:03:09,797 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:03:09,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process
[2024-11-08 18:03:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:03:10,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 18:03:10,021 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:03:10,119 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:03:10,119 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:03:10,290 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:03:10,290 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:03:10,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409358597]
[2024-11-08 18:03:10,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409358597] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:03:10,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 18:03:10,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6
[2024-11-08 18:03:10,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637322891]
[2024-11-08 18:03:10,291 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:03:10,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:03:10,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:03:10,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:03:10,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:03:10,292 INFO L87 Difference]: Start difference. First operand 1369 states and 1893 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:03:10,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:03:10,461 INFO L93 Difference]: Finished difference Result 6646 states and 9356 transitions.
[2024-11-08 18:03:10,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 18:03:10,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 57
[2024-11-08 18:03:10,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:03:10,486 INFO L225 Difference]: With dead ends: 6646
[2024-11-08 18:03:10,487 INFO L226 Difference]: Without dead ends: 6646
[2024-11-08 18:03:10,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-08 18:03:10,487 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 825 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 18:03:10,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1240 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 18:03:10,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6646 states.
[2024-11-08 18:03:10,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6646 to 5057.
[2024-11-08 18:03:10,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5057 states, 4857 states have (on average 1.4482190652666256) internal successors, (7034), 4904 states have internal predecessors, (7034), 150 states have call successors, (150), 8 states have call predecessors, (150), 8 states have return successors, (150), 144 states have call predecessors, (150), 150 states have call successors, (150)
[2024-11-08 18:03:10,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5057 states to 5057 states and 7334 transitions.
[2024-11-08 18:03:10,618 INFO L78 Accepts]: Start accepts. Automaton has 5057 states and 7334 transitions. Word has length 57
[2024-11-08 18:03:10,619 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:03:10,619 INFO L471 AbstractCegarLoop]: Abstraction has 5057 states and 7334 transitions.
[2024-11-08 18:03:10,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:03:10,619 INFO L276 IsEmpty]: Start isEmpty. Operand 5057 states and 7334 transitions.
[2024-11-08 18:03:10,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-08 18:03:10,620 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:03:10,621 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:03:10,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0
[2024-11-08 18:03:10,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:03:10,821 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:03:10,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:03:10,822 INFO L85 PathProgramCache]: Analyzing trace with hash 878309017, now seen corresponding path program 1 times
[2024-11-08 18:03:10,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:03:10,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [943051042]
[2024-11-08 18:03:10,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:03:10,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:03:10,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:03:10,824 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:03:10,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process
[2024-11-08 18:03:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:03:11,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-08 18:03:11,061 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:03:11,094 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 18:03:11,561 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 18:03:11,702 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 18:03:11,758 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:03:11,759 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:03:11,759 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:03:11,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943051042]
[2024-11-08 18:03:11,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943051042] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:03:11,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:03:11,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-08 18:03:11,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903108515]
[2024-11-08 18:03:11,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:03:11,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-08 18:03:11,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:03:11,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-08 18:03:11,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2024-11-08 18:03:11,760 INFO L87 Difference]: Start difference. First operand 5057 states and 7334 transitions. Second operand has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:03:13,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:03:13,584 INFO L93 Difference]: Finished difference Result 7540 states and 11020 transitions.
[2024-11-08 18:03:13,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-08 18:03:13,584 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57
[2024-11-08 18:03:13,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:03:13,607 INFO L225 Difference]: With dead ends: 7540
[2024-11-08 18:03:13,607 INFO L226 Difference]: Without dead ends: 7540
[2024-11-08 18:03:13,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210
[2024-11-08 18:03:13,608 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 288 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2024-11-08 18:03:13,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 1110 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2024-11-08 18:03:13,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7540 states.
[2024-11-08 18:03:13,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7540 to 6289.
[2024-11-08 18:03:13,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6289 states, 6003 states have (on average 1.4339496918207564) internal successors, (8608), 6084 states have internal predecessors, (8608), 232 states have call successors, (232), 12 states have call predecessors, (232), 12 states have return successors, (232), 192 states have call predecessors, (232), 232 states have call successors, (232)
[2024-11-08 18:03:13,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6289 states to 6289 states and 9072 transitions.
[2024-11-08 18:03:13,766 INFO L78 Accepts]: Start accepts. Automaton has 6289 states and 9072 transitions. Word has length 57
[2024-11-08 18:03:13,766 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:03:13,767 INFO L471 AbstractCegarLoop]: Abstraction has 6289 states and 9072 transitions.
[2024-11-08 18:03:13,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:03:13,767 INFO L276 IsEmpty]: Start isEmpty. Operand 6289 states and 9072 transitions.
[2024-11-08 18:03:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-08 18:03:13,768 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:03:13,768 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:03:13,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0
[2024-11-08 18:03:13,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:03:13,969 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:03:13,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:03:13,970 INFO L85 PathProgramCache]: Analyzing trace with hash 878309018, now seen corresponding path program 1 times
[2024-11-08 18:03:13,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:03:13,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1713270665]
[2024-11-08 18:03:13,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:03:13,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:03:13,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:03:13,978 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:03:13,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process
[2024-11-08 18:03:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:03:14,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 27 conjuncts are in the unsatisfiable core
[2024-11-08 18:03:14,239 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:03:14,291 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 18:03:14,940 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 18:03:14,948 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 18:03:15,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9
[2024-11-08 18:03:15,247 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:03:15,247 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:03:15,247 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 18:03:15,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713270665]
[2024-11-08 18:03:15,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713270665] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:03:15,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:03:15,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-08 18:03:15,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680829873]
[2024-11-08 18:03:15,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:03:15,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-08 18:03:15,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 18:03:15,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-08 18:03:15,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2024-11-08 18:03:15,249 INFO L87 Difference]: Start difference. First operand 6289 states and 9072 transitions. Second operand has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:03:17,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:03:17,300 INFO L93 Difference]: Finished difference Result 8221 states and 12058 transitions.
[2024-11-08 18:03:17,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-08 18:03:17,301 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57
[2024-11-08 18:03:17,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:03:17,319 INFO L225 Difference]: With dead ends: 8221
[2024-11-08 18:03:17,319 INFO L226 Difference]: Without dead ends: 8221
[2024-11-08 18:03:17,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182
[2024-11-08 18:03:17,320 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 355 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2024-11-08 18:03:17,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1230 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2024-11-08 18:03:17,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8221 states.
[2024-11-08 18:03:17,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8221 to 7191.
[2024-11-08 18:03:17,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7191 states, 6873 states have (on average 1.4564236868907319) internal successors, (10010), 6966 states have internal predecessors, (10010), 262 states have call successors, (262), 14 states have call predecessors, (262), 14 states have return successors, (262), 210 states have call predecessors, (262), 262 states have call successors, (262)
[2024-11-08 18:03:17,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7191 states to 7191 states and 10534 transitions.
[2024-11-08 18:03:17,472 INFO L78 Accepts]: Start accepts. Automaton has 7191 states and 10534 transitions. Word has length 57
[2024-11-08 18:03:17,472 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:03:17,472 INFO L471 AbstractCegarLoop]: Abstraction has 7191 states and 10534 transitions.
[2024-11-08 18:03:17,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:03:17,473 INFO L276 IsEmpty]: Start isEmpty. Operand 7191 states and 10534 transitions.
[2024-11-08 18:03:17,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2024-11-08 18:03:17,474 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:03:17,474 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:03:17,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0
[2024-11-08 18:03:17,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:03:17,675 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 64 more)] ===
[2024-11-08 18:03:17,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:03:17,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1977580937, now seen corresponding path program 1 times
[2024-11-08 18:03:17,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 18:03:17,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1381598400]
[2024-11-08 18:03:17,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:03:17,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:03:17,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:03:17,678 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:03:17,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670ad50a-f9c0-4d93-bff2-286107ac1a35/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process
[2024-11-08 18:03:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:03:17,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-11-08 18:03:17,909 INFO L278 TraceCheckSpWp]: Computing forward predicates...