./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/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_30212f09-718e-4dba-bf2e-5b0e22babfec/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 15d1d7d49ed223522c6431664b8ff836ebc81296f5e11773e2197361bd8b13cf
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:09:30,868 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:09:30,999 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 17:09:31,011 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:09:31,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:09:31,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:09:31,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:09:31,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:09:31,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:09:31,074 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 17:09:31,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:09:31,075 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:09:31,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:09:31,080 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 17:09:31,080 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 17:09:31,081 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:09:31,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 17:09:31,081 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 17:09:31,082 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 17:09:31,082 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 17:09:31,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 17:09:31,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 17:09:31,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:09:31,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 17:09:31,102 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 17:09:31,102 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 17:09:31,103 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 17:09:31,103 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 17:09:31,103 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:09:31,104 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 17:09:31,104 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:09:31,104 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 17:09:31,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:09:31,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:09:31,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:09:31,108 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 17:09:31,109 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 17:09:31,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 17:09:31,110 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:09:31,111 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:09:31,111 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:09:31,111 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:09:31,112 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_30212f09-718e-4dba-bf2e-5b0e22babfec/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15d1d7d49ed223522c6431664b8ff836ebc81296f5e11773e2197361bd8b13cf
[2024-11-08 17:09:31,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:09:31,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:09:31,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:09:31,506 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 17:09:31,507 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 17:09:31,510 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i
Unable to find full path for "g++"
[2024-11-08 17:09:33,755 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:09:34,026 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 17:09:34,027 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/sv-benchmarks/c/heap-manipulation/merge_sort-1.i
[2024-11-08 17:09:34,043 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/bin/uautomizer-verify-jihMAELWvX/data/aacc98b69/662cf59530024b2fbaf48ceaba1b1404/FLAG548dcbca6
[2024-11-08 17:09:34,330 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/bin/uautomizer-verify-jihMAELWvX/data/aacc98b69/662cf59530024b2fbaf48ceaba1b1404
[2024-11-08 17:09:34,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:09:34,352 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:09:34,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:09:34,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:09:34,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:09:34,365 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:09:34" (1/1) ...
[2024-11-08 17:09:34,366 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@532c48d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:09:34, skipping insertion in model container
[2024-11-08 17:09:34,367 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:09:34" (1/1) ...
[2024-11-08 17:09:34,424 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:09:34,822 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/sv-benchmarks/c/heap-manipulation/merge_sort-1.i[22632,22645]
[2024-11-08 17:09:34,873 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:09:34,885 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 17:09:34,936 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/sv-benchmarks/c/heap-manipulation/merge_sort-1.i[22632,22645]
[2024-11-08 17:09:34,966 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:09:35,003 INFO L204 MainTranslator]: Completed translation
[2024-11-08 17:09:35,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:09:35 WrapperNode
[2024-11-08 17:09:35,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:09:35,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:09:35,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:09:35,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:09:35,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:09:35" (1/1) ...
[2024-11-08 17:09:35,031 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:09:35" (1/1) ...
[2024-11-08 17:09:35,074 INFO L138 Inliner]: procedures = 125, calls = 83, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 268
[2024-11-08 17:09:35,075 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:09:35,076 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:09:35,076 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:09:35,076 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:09:35,091 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:09:35" (1/1) ...
[2024-11-08 17:09:35,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:09:35" (1/1) ...
[2024-11-08 17:09:35,098 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:09:35" (1/1) ...
[2024-11-08 17:09:35,174 INFO L175 MemorySlicer]: Split 49 memory accesses to 4 slices as follows [2, 10, 34, 3]. 69 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 13 writes are split as follows [0, 3, 8, 2].
[2024-11-08 17:09:35,175 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:09:35" (1/1) ...
[2024-11-08 17:09:35,175 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:09:35" (1/1) ...
[2024-11-08 17:09:35,192 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:09:35" (1/1) ...
[2024-11-08 17:09:35,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:09:35" (1/1) ...
[2024-11-08 17:09:35,212 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:09:35" (1/1) ...
[2024-11-08 17:09:35,218 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:09:35" (1/1) ...
[2024-11-08 17:09:35,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:09:35,231 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:09:35,232 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:09:35,232 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:09:35,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:09:35" (1/1) ...
[2024-11-08 17:09:35,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:09:35,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:09:35,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:09:35,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:09:35,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-08 17:09:35,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-08 17:09:35,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-08 17:09:35,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-11-08 17:09:35,378 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node
[2024-11-08 17:09:35,378 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node
[2024-11-08 17:09:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure fail
[2024-11-08 17:09:35,379 INFO L138 BoogieDeclarations]: Found implementation of procedure fail
[2024-11-08 17:09:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-08 17:09:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-08 17:09:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-08 17:09:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-11-08 17:09:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-08 17:09:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:09:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-08 17:09:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-08 17:09:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-08 17:09:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-11-08 17:09:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3
[2024-11-08 17:09:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-08 17:09:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-08 17:09:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-08 17:09:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3
[2024-11-08 17:09:35,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-08 17:09:35,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 17:09:35,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-08 17:09:35,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-08 17:09:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-11-08 17:09:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:09:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:09:35,609 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 17:09:35,611 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:09:36,146 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live.
[2024-11-08 17:09:36,147 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 17:09:36,166 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:09:36,166 INFO L316 CfgBuilder]: Removed 31 assume(true) statements.
[2024-11-08 17:09:36,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:09:36 BoogieIcfgContainer
[2024-11-08 17:09:36,167 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:09:36,174 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:09:36,174 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:09:36,179 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:09:36,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:09:34" (1/3) ...
[2024-11-08 17:09:36,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4615766d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:09:36, skipping insertion in model container
[2024-11-08 17:09:36,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:09:35" (2/3) ...
[2024-11-08 17:09:36,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4615766d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:09:36, skipping insertion in model container
[2024-11-08 17:09:36,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:09:36" (3/3) ...
[2024-11-08 17:09:36,187 INFO L112 eAbstractionObserver]: Analyzing ICFG merge_sort-1.i
[2024-11-08 17:09:36,213 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:09:36,213 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 17:09:36,303 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:09:36,312 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@664db7eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:09:36,313 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 17:09:36,319 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 78 states have (on average 1.794871794871795) internal successors, (140), 94 states have internal predecessors, (140), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-08 17:09:36,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-08 17:09:36,329 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:09:36,330 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:09:36,331 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:09:36,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:09:36,344 INFO L85 PathProgramCache]: Analyzing trace with hash 2116504204, now seen corresponding path program 1 times
[2024-11-08 17:09:36,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:09:36,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107830973]
[2024-11-08 17:09:36,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:09:36,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:09:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:09:36,557 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 17:09:36,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:09:36,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107830973]
[2024-11-08 17:09:36,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107830973] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:09:36,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:09:36,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:09:36,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108139554]
[2024-11-08 17:09:36,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:09:36,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 17:09:36,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:09:36,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 17:09:36,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:09:36,613 INFO L87 Difference]: Start difference. First operand has 97 states, 78 states have (on average 1.794871794871795) internal successors, (140), 94 states have internal predecessors, (140), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:09:36,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:09:36,680 INFO L93 Difference]: Finished difference Result 190 states and 337 transitions.
[2024-11-08 17:09:36,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 17:09:36,685 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-11-08 17:09:36,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:09:36,699 INFO L225 Difference]: With dead ends: 190
[2024-11-08 17:09:36,700 INFO L226 Difference]: Without dead ends: 87
[2024-11-08 17:09:36,705 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 17:09:36,714 INFO L432 NwaCegarLoop]: 122 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, 122 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 17:09:36,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:09:36,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states.
[2024-11-08 17:09:36,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87.
[2024-11-08 17:09:36,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 84 states have internal predecessors, (94), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:09:36,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 111 transitions.
[2024-11-08 17:09:36,795 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 111 transitions. Word has length 7
[2024-11-08 17:09:36,798 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:09:36,798 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 111 transitions.
[2024-11-08 17:09:36,799 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:09:36,799 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 111 transitions.
[2024-11-08 17:09:36,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 17:09:36,800 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:09:36,800 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:09:36,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 17:09:36,801 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:09:36,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:09:36,802 INFO L85 PathProgramCache]: Analyzing trace with hash 563257077, now seen corresponding path program 1 times
[2024-11-08 17:09:36,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:09:36,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533494156]
[2024-11-08 17:09:36,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:09:36,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:09:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:09:36,955 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 17:09:36,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:09:36,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533494156]
[2024-11-08 17:09:36,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533494156] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:09:36,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:09:36,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:09:36,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961135280]
[2024-11-08 17:09:36,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:09:36,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:09:36,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:09:36,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:09:36,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:09:36,962 INFO L87 Difference]: Start difference. First operand 87 states and 111 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:09:37,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:09:37,040 INFO L93 Difference]: Finished difference Result 172 states and 220 transitions.
[2024-11-08 17:09:37,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:09:37,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2024-11-08 17:09:37,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:09:37,044 INFO L225 Difference]: With dead ends: 172
[2024-11-08 17:09:37,047 INFO L226 Difference]: Without dead ends: 93
[2024-11-08 17:09:37,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:09:37,050 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 4 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:09:37,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 214 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:09:37,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2024-11-08 17:09:37,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 89.
[2024-11-08 17:09:37,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 72 states have (on average 1.3333333333333333) internal successors, (96), 86 states have internal predecessors, (96), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:09:37,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 113 transitions.
[2024-11-08 17:09:37,082 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 113 transitions. Word has length 8
[2024-11-08 17:09:37,082 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:09:37,082 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 113 transitions.
[2024-11-08 17:09:37,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:09:37,083 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 113 transitions.
[2024-11-08 17:09:37,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-08 17:09:37,084 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:09:37,084 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:09:37,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 17:09:37,085 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:09:37,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:09:37,086 INFO L85 PathProgramCache]: Analyzing trace with hash -350774658, now seen corresponding path program 1 times
[2024-11-08 17:09:37,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:09:37,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248715863]
[2024-11-08 17:09:37,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:09:37,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:09:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:09:37,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:09:37,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:09:37,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248715863]
[2024-11-08 17:09:37,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248715863] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:09:37,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:09:37,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:09:37,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637677457]
[2024-11-08 17:09:37,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:09:37,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:09:37,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:09:37,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:09:37,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:09:37,519 INFO L87 Difference]: Start difference. First operand 89 states and 113 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:09:37,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:09:37,691 INFO L93 Difference]: Finished difference Result 145 states and 182 transitions.
[2024-11-08 17:09:37,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:09:37,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14
[2024-11-08 17:09:37,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:09:37,694 INFO L225 Difference]: With dead ends: 145
[2024-11-08 17:09:37,695 INFO L226 Difference]: Without dead ends: 140
[2024-11-08 17:09:37,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:09:37,697 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 128 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:09:37,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 329 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:09:37,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states.
[2024-11-08 17:09:37,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 92.
[2024-11-08 17:09:37,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 76 states have (on average 1.3157894736842106) internal successors, (100), 89 states have internal predecessors, (100), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:09:37,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 116 transitions.
[2024-11-08 17:09:37,737 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 116 transitions. Word has length 14
[2024-11-08 17:09:37,738 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:09:37,738 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 116 transitions.
[2024-11-08 17:09:37,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:09:37,739 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 116 transitions.
[2024-11-08 17:09:37,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2024-11-08 17:09:37,743 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:09:37,744 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:09:37,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 17:09:37,745 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:09:37,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:09:37,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1324015454, now seen corresponding path program 1 times
[2024-11-08 17:09:37,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:09:37,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291271138]
[2024-11-08 17:09:37,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:09:37,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:09:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:09:38,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-08 17:09:38,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:09:38,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291271138]
[2024-11-08 17:09:38,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291271138] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:09:38,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:09:38,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:09:38,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570715099]
[2024-11-08 17:09:38,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:09:38,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:09:38,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:09:38,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:09:38,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:09:38,066 INFO L87 Difference]: Start difference. First operand 92 states and 116 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:09:38,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:09:38,373 INFO L93 Difference]: Finished difference Result 94 states and 117 transitions.
[2024-11-08 17:09:38,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:09:38,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2024-11-08 17:09:38,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:09:38,379 INFO L225 Difference]: With dead ends: 94
[2024-11-08 17:09:38,380 INFO L226 Difference]: Without dead ends: 91
[2024-11-08 17:09:38,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:09:38,382 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 12 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:09:38,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 332 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:09:38,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states.
[2024-11-08 17:09:38,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91.
[2024-11-08 17:09:38,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 76 states have (on average 1.3026315789473684) internal successors, (99), 88 states have internal predecessors, (99), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:09:38,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 114 transitions.
[2024-11-08 17:09:38,409 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 114 transitions. Word has length 21
[2024-11-08 17:09:38,409 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:09:38,412 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 114 transitions.
[2024-11-08 17:09:38,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:09:38,413 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 114 transitions.
[2024-11-08 17:09:38,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2024-11-08 17:09:38,414 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:09:38,414 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:09:38,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 17:09:38,415 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:09:38,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:09:38,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1649431444, now seen corresponding path program 1 times
[2024-11-08 17:09:38,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:09:38,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85683615]
[2024-11-08 17:09:38,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:09:38,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:09:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:09:38,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-08 17:09:38,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:09:38,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85683615]
[2024-11-08 17:09:38,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85683615] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:09:38,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:09:38,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:09:38,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121161367]
[2024-11-08 17:09:38,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:09:38,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:09:38,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:09:38,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:09:38,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:09:38,646 INFO L87 Difference]: Start difference. First operand 91 states and 114 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:09:38,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:09:38,906 INFO L93 Difference]: Finished difference Result 93 states and 115 transitions.
[2024-11-08 17:09:38,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:09:38,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2024-11-08 17:09:38,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:09:38,908 INFO L225 Difference]: With dead ends: 93
[2024-11-08 17:09:38,909 INFO L226 Difference]: Without dead ends: 90
[2024-11-08 17:09:38,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:09:38,912 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 12 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:09:38,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 322 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:09:38,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states.
[2024-11-08 17:09:38,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90.
[2024-11-08 17:09:38,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 76 states have (on average 1.2894736842105263) internal successors, (98), 87 states have internal predecessors, (98), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:09:38,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 112 transitions.
[2024-11-08 17:09:38,937 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 112 transitions. Word has length 21
[2024-11-08 17:09:38,937 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:09:38,937 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 112 transitions.
[2024-11-08 17:09:38,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:09:38,938 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 112 transitions.
[2024-11-08 17:09:38,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-08 17:09:38,939 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:09:38,939 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:09:38,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 17:09:38,940 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:09:38,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:09:38,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1118565594, now seen corresponding path program 1 times
[2024-11-08 17:09:38,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:09:38,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205755111]
[2024-11-08 17:09:38,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:09:38,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:09:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:09:39,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:09:39,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:09:39,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205755111]
[2024-11-08 17:09:39,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205755111] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:09:39,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:09:39,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 17:09:39,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088017584]
[2024-11-08 17:09:39,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:09:39,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:09:39,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:09:39,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:09:39,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:09:39,270 INFO L87 Difference]: Start difference. First operand 90 states and 112 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:09:39,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:09:39,749 INFO L93 Difference]: Finished difference Result 140 states and 170 transitions.
[2024-11-08 17:09:39,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 17:09:39,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24
[2024-11-08 17:09:39,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:09:39,752 INFO L225 Difference]: With dead ends: 140
[2024-11-08 17:09:39,752 INFO L226 Difference]: Without dead ends: 137
[2024-11-08 17:09:39,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-11-08 17:09:39,756 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 109 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:09:39,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 343 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 17:09:39,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states.
[2024-11-08 17:09:39,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 96.
[2024-11-08 17:09:39,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 82 states have (on average 1.2682926829268293) internal successors, (104), 93 states have internal predecessors, (104), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:09:39,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 118 transitions.
[2024-11-08 17:09:39,781 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 118 transitions. Word has length 24
[2024-11-08 17:09:39,781 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:09:39,781 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 118 transitions.
[2024-11-08 17:09:39,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:09:39,782 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 118 transitions.
[2024-11-08 17:09:39,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-08 17:09:39,783 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:09:39,784 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:09:39,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-08 17:09:39,784 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:09:39,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:09:39,786 INFO L85 PathProgramCache]: Analyzing trace with hash 331629113, now seen corresponding path program 1 times
[2024-11-08 17:09:39,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:09:39,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078056972]
[2024-11-08 17:09:39,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:09:39,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:09:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:09:39,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:09:39,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:09:39,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078056972]
[2024-11-08 17:09:39,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078056972] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:09:39,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:09:39,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 17:09:39,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966014266]
[2024-11-08 17:09:39,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:09:39,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:09:39,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:09:39,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:09:39,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:09:39,994 INFO L87 Difference]: Start difference. First operand 96 states and 118 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:09:40,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:09:40,355 INFO L93 Difference]: Finished difference Result 139 states and 168 transitions.
[2024-11-08 17:09:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 17:09:40,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24
[2024-11-08 17:09:40,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:09:40,358 INFO L225 Difference]: With dead ends: 139
[2024-11-08 17:09:40,358 INFO L226 Difference]: Without dead ends: 136
[2024-11-08 17:09:40,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-11-08 17:09:40,360 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 107 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:09:40,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 343 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:09:40,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states.
[2024-11-08 17:09:40,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 102.
[2024-11-08 17:09:40,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 88 states have (on average 1.25) internal successors, (110), 99 states have internal predecessors, (110), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:09:40,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 124 transitions.
[2024-11-08 17:09:40,380 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 124 transitions. Word has length 24
[2024-11-08 17:09:40,381 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:09:40,381 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 124 transitions.
[2024-11-08 17:09:40,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:09:40,381 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 124 transitions.
[2024-11-08 17:09:40,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2024-11-08 17:09:40,382 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:09:40,383 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:09:40,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-08 17:09:40,383 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:09:40,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:09:40,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1565953905, now seen corresponding path program 1 times
[2024-11-08 17:09:40,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:09:40,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892944176]
[2024-11-08 17:09:40,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:09:40,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:09:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:09:40,414 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 17:09:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:09:40,456 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 17:09:40,456 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 17:09:40,458 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-08 17:09:40,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-08 17:09:40,464 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:09:40,497 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 17:09:40,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:09:40 BoogieIcfgContainer
[2024-11-08 17:09:40,502 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 17:09:40,503 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 17:09:40,503 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 17:09:40,503 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 17:09:40,504 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:09:36" (3/4) ...
[2024-11-08 17:09:40,505 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample
[2024-11-08 17:09:40,562 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/bin/uautomizer-verify-jihMAELWvX/witness.graphml
[2024-11-08 17:09:40,562 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 17:09:40,562 INFO L158 Benchmark]: Toolchain (without parser) took 6210.90ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 141.0MB in the beginning and 96.9MB in the end (delta: 44.0MB). Peak memory consumption was 76.7MB. Max. memory is 16.1GB.
[2024-11-08 17:09:40,563 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 127.9MB. Free memory is still 100.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:09:40,563 INFO L158 Benchmark]: CACSL2BoogieTranslator took 649.47ms. Allocated memory is still 169.9MB. Free memory was 140.8MB in the beginning and 121.1MB in the end (delta: 19.6MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB.
[2024-11-08 17:09:40,563 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.54ms. Allocated memory is still 169.9MB. Free memory was 121.1MB in the beginning and 118.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 17:09:40,564 INFO L158 Benchmark]: Boogie Preprocessor took 154.53ms. Allocated memory is still 169.9MB. Free memory was 118.2MB in the beginning and 136.2MB in the end (delta: -18.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-08 17:09:40,564 INFO L158 Benchmark]: RCFGBuilder took 935.88ms. Allocated memory is still 169.9MB. Free memory was 136.2MB in the beginning and 105.9MB in the end (delta: 30.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB.
[2024-11-08 17:09:40,565 INFO L158 Benchmark]: TraceAbstraction took 4328.53ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 105.9MB in the beginning and 99.0MB in the end (delta: 6.9MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB.
[2024-11-08 17:09:40,566 INFO L158 Benchmark]: Witness Printer took 59.09ms. Allocated memory is still 205.5MB. Free memory was 99.0MB in the beginning and 96.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 17:09:40,569 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.38ms. Allocated memory is still 127.9MB. Free memory is still 100.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 649.47ms. Allocated memory is still 169.9MB. Free memory was 140.8MB in the beginning and 121.1MB in the end (delta: 19.6MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 69.54ms. Allocated memory is still 169.9MB. Free memory was 121.1MB in the beginning and 118.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 154.53ms. Allocated memory is still 169.9MB. Free memory was 118.2MB in the beginning and 136.2MB in the end (delta: -18.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 935.88ms. Allocated memory is still 169.9MB. Free memory was 136.2MB in the beginning and 105.9MB in the end (delta: 30.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 4328.53ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 105.9MB in the beginning and 99.0MB in the end (delta: 6.9MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB.
* Witness Printer took 59.09ms. Allocated memory is still 205.5MB. Free memory was 99.0MB in the beginning and 96.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- CounterExampleResult [Line: 565]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L638] struct list *data = ((void *)0);
VAL [data={0:0}]
[L639] COND TRUE __VERIFIER_nondet_int()
[L640] struct node *node = malloc(sizeof *node);
[L641] COND FALSE !(!node)
VAL [data={0:0}, node={-1:0}]
[L643] node->next = node
[L644] node->value = __VERIFIER_nondet_int()
[L645] struct list *item = malloc(sizeof *item);
[L646] COND FALSE !(!item)
VAL [data={0:0}, item={-3:0}, node={-1:0}]
[L648] item->slist = node
[L649] item->next = data
[L650] data = item
[L639] COND FALSE !(__VERIFIER_nondet_int())
[L652] COND FALSE !(!data)
[L654] CALL inspect_before(data)
[L615] COND FALSE !(!(shape))
VAL [shape={-3:0}]
[L616] shape->next
[L616] COND FALSE !(shape->next)
[L622] COND FALSE !(!(shape))
VAL [shape={-3:0}]
[L623] EXPR shape->next
[L623] COND FALSE !(!(shape->next == ((void *)0)))
[L624] EXPR shape->slist
[L624] COND FALSE !(!(shape->slist))
[L625] EXPR shape->slist
[L625] EXPR shape->slist->next
[L625] COND TRUE !(shape->slist->next == ((void *)0))
[L625] CALL fail()
[L565] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 372 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 372 mSDsluCounter, 2005 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1322 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 525 IncrementalHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 683 mSDtfsCounter, 525 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=7, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 127 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 519 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2024-11-08 17:09:40,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30212f09-718e-4dba-bf2e-5b0e22babfec/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE