./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/verifythis/tree_max.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (memcleanup)
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_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/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_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/verifythis/tree_max.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/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-memcleanup) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e98a60ea9ee0c00575c08606ce8b95d0660c5b235c5932147dfee4b13512f57c
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:38:17,098 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:38:17,189 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/config/svcomp-MemCleanup-32bit-Automizer_Default.epf
[2024-11-08 17:38:17,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:38:17,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:38:17,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:38:17,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:38:17,235 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:38:17,236 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:38:17,236 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 17:38:17,237 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:38:17,237 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:38:17,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:38:17,239 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 17:38:17,240 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 17:38:17,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:38:17,240 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 17:38:17,241 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 17:38:17,241 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 17:38:17,241 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 17:38:17,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 17:38:17,245 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 17:38:17,246 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-08 17:38:17,246 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-08 17:38:17,246 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:38:17,246 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 17:38:17,247 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-08 17:38:17,247 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 17:38:17,247 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 17:38:17,247 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 17:38:17,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 17:38:17,248 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 17:38:17,248 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:38:17,248 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 17:38:17,249 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:38:17,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 17:38:17,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:38:17,251 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:38:17,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:38:17,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 17:38:17,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 17:38:17,253 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:38:17,253 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:38:17,253 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:38:17,254 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:38:17,254 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_4fe0e310-e86b-475e-b85a-bde596a4ed5b/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e98a60ea9ee0c00575c08606ce8b95d0660c5b235c5932147dfee4b13512f57c
[2024-11-08 17:38:17,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:38:17,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:38:17,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:38:17,578 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 17:38:17,580 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 17:38:17,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/verifythis/tree_max.c
Unable to find full path for "g++"
[2024-11-08 17:38:19,548 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:38:19,768 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 17:38:19,769 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/sv-benchmarks/c/verifythis/tree_max.c
[2024-11-08 17:38:19,780 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/data/01fccb1cc/0adc1df5612a433baca8b4884bef85c1/FLAG4931dd579
[2024-11-08 17:38:19,799 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/data/01fccb1cc/0adc1df5612a433baca8b4884bef85c1
[2024-11-08 17:38:19,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:38:19,806 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:38:19,807 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:38:19,809 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:38:19,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:38:19,815 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:38:19" (1/1) ...
[2024-11-08 17:38:19,816 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eeed8c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:19, skipping insertion in model container
[2024-11-08 17:38:19,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:38:19" (1/1) ...
[2024-11-08 17:38:19,843 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:38:20,064 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:38:20,075 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:38:20,085 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 17:38:20,109 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:38:20,128 INFO L204 MainTranslator]: Completed translation
[2024-11-08 17:38:20,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:20 WrapperNode
[2024-11-08 17:38:20,129 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:38:20,130 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:38:20,130 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:38:20,130 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:38:20,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:20" (1/1) ...
[2024-11-08 17:38:20,146 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:20" (1/1) ...
[2024-11-08 17:38:20,161 INFO L138 Inliner]: procedures = 24, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 40
[2024-11-08 17:38:20,162 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:38:20,162 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:38:20,163 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:38:20,163 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:38:20,172 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:20" (1/1) ...
[2024-11-08 17:38:20,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:20" (1/1) ...
[2024-11-08 17:38:20,175 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:20" (1/1) ...
[2024-11-08 17:38:20,195 INFO L175 MemorySlicer]: Split 11 memory accesses to 2 slices as follows [2, 9]. 82 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3].
[2024-11-08 17:38:20,196 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:20" (1/1) ...
[2024-11-08 17:38:20,196 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:20" (1/1) ...
[2024-11-08 17:38:20,207 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:20" (1/1) ...
[2024-11-08 17:38:20,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:20" (1/1) ...
[2024-11-08 17:38:20,210 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:20" (1/1) ...
[2024-11-08 17:38:20,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:20" (1/1) ...
[2024-11-08 17:38:20,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:38:20,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:38:20,215 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:38:20,215 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:38:20,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:20" (1/1) ...
[2024-11-08 17:38:20,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:38:20,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:38:20,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:38:20,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:38:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-08 17:38:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-08 17:38:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:38:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure max
[2024-11-08 17:38:20,299 INFO L138 BoogieDeclarations]: Found implementation of procedure max
[2024-11-08 17:38:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree
[2024-11-08 17:38:20,300 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree
[2024-11-08 17:38:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 17:38:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-08 17:38:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure check
[2024-11-08 17:38:20,300 INFO L138 BoogieDeclarations]: Found implementation of procedure check
[2024-11-08 17:38:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-08 17:38:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-08 17:38:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-08 17:38:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-08 17:38:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-08 17:38:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:38:20,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:38:20,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-08 17:38:20,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-08 17:38:20,394 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 17:38:20,397 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:38:20,603 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live.
[2024-11-08 17:38:20,603 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 17:38:20,617 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:38:20,617 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 17:38:20,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:38:20 BoogieIcfgContainer
[2024-11-08 17:38:20,618 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:38:20,620 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:38:20,620 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:38:20,624 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:38:20,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:38:19" (1/3) ...
[2024-11-08 17:38:20,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2542ea8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:38:20, skipping insertion in model container
[2024-11-08 17:38:20,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:20" (2/3) ...
[2024-11-08 17:38:20,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2542ea8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:38:20, skipping insertion in model container
[2024-11-08 17:38:20,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:38:20" (3/3) ...
[2024-11-08 17:38:20,627 INFO L112 eAbstractionObserver]: Analyzing ICFG tree_max.c
[2024-11-08 17:38:20,644 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:38:20,645 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-11-08 17:38:20,712 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:38:20,719 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;@5c81093a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:38:20,719 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-08 17:38:20,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 31 states have internal predecessors, (38), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-08 17:38:20,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-11-08 17:38:20,733 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:38:20,734 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:38:20,735 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting checkErr0ASSERT_VIOLATIONMEMORY_LEAK === [checkErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2024-11-08 17:38:20,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:38:20,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1784882872, now seen corresponding path program 1 times
[2024-11-08 17:38:20,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:38:20,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241775551]
[2024-11-08 17:38:20,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:38:20,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:38:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:21,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:21,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:38:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:21,435 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 17:38:21,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:38:21,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241775551]
[2024-11-08 17:38:21,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241775551] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:38:21,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:38:21,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-08 17:38:21,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740846166]
[2024-11-08 17:38:21,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:38:21,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 17:38:21,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:38:21,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 17:38:21,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:38:21,492 INFO L87 Difference]: Start difference. First operand has 44 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 31 states have internal predecessors, (38), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:38:21,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:38:21,863 INFO L93 Difference]: Finished difference Result 54 states and 68 transitions.
[2024-11-08 17:38:21,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 17:38:21,865 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19
[2024-11-08 17:38:21,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:38:21,876 INFO L225 Difference]: With dead ends: 54
[2024-11-08 17:38:21,876 INFO L226 Difference]: Without dead ends: 52
[2024-11-08 17:38:21,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110
[2024-11-08 17:38:21,884 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 35 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:38:21,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 118 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:38:21,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2024-11-08 17:38:21,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51.
[2024-11-08 17:38:21,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 35 states have internal predecessors, (40), 11 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14)
[2024-11-08 17:38:21,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 65 transitions.
[2024-11-08 17:38:21,937 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 65 transitions. Word has length 19
[2024-11-08 17:38:21,937 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:38:21,938 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 65 transitions.
[2024-11-08 17:38:21,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:38:21,938 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions.
[2024-11-08 17:38:21,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2024-11-08 17:38:21,942 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:38:21,943 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]
[2024-11-08 17:38:21,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 17:38:21,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [checkErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2024-11-08 17:38:21,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:38:21,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1558539456, now seen corresponding path program 1 times
[2024-11-08 17:38:21,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:38:21,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329561543]
[2024-11-08 17:38:21,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:38:21,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:38:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:22,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:22,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:38:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:22,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 17:38:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:22,105 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 17:38:22,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:38:22,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329561543]
[2024-11-08 17:38:22,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329561543] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:38:22,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:38:22,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:38:22,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968456763]
[2024-11-08 17:38:22,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:38:22,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:38:22,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:38:22,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:38:22,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:38:22,118 INFO L87 Difference]: Start difference. First operand 51 states and 65 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-11-08 17:38:22,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:38:22,289 INFO L93 Difference]: Finished difference Result 53 states and 66 transitions.
[2024-11-08 17:38:22,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:38:22,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21
[2024-11-08 17:38:22,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:38:22,292 INFO L225 Difference]: With dead ends: 53
[2024-11-08 17:38:22,292 INFO L226 Difference]: Without dead ends: 43
[2024-11-08 17:38:22,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:38:22,294 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 29 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:38:22,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 38 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:38:22,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2024-11-08 17:38:22,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43.
[2024-11-08 17:38:22,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.25) internal successors, (35), 30 states have internal predecessors, (35), 9 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11)
[2024-11-08 17:38:22,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions.
[2024-11-08 17:38:22,301 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 21
[2024-11-08 17:38:22,301 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:38:22,301 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions.
[2024-11-08 17:38:22,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-11-08 17:38:22,302 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions.
[2024-11-08 17:38:22,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-11-08 17:38:22,303 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:38:22,303 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 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 17:38:22,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 17:38:22,303 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting checkErr0ASSERT_VIOLATIONMEMORY_LEAK === [checkErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2024-11-08 17:38:22,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:38:22,307 INFO L85 PathProgramCache]: Analyzing trace with hash -583725959, now seen corresponding path program 1 times
[2024-11-08 17:38:22,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:38:22,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29827074]
[2024-11-08 17:38:22,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:38:22,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:38:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:22,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:22,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:22,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:38:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:22,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 17:38:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:22,767 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-08 17:38:22,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:38:22,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29827074]
[2024-11-08 17:38:22,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29827074] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:38:22,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:38:22,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-08 17:38:22,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705708136]
[2024-11-08 17:38:22,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:38:22,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-08 17:38:22,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:38:22,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-08 17:38:22,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2024-11-08 17:38:22,774 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)
[2024-11-08 17:38:23,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:38:23,098 INFO L93 Difference]: Finished difference Result 45 states and 58 transitions.
[2024-11-08 17:38:23,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 17:38:23,098 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 31
[2024-11-08 17:38:23,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:38:23,100 INFO L225 Difference]: With dead ends: 45
[2024-11-08 17:38:23,100 INFO L226 Difference]: Without dead ends: 45
[2024-11-08 17:38:23,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2024-11-08 17:38:23,101 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 31 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:38:23,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 128 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:38:23,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2024-11-08 17:38:23,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45.
[2024-11-08 17:38:23,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 32 states have internal predecessors, (36), 9 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (13), 9 states have call predecessors, (13), 9 states have call successors, (13)
[2024-11-08 17:38:23,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 58 transitions.
[2024-11-08 17:38:23,115 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 58 transitions. Word has length 31
[2024-11-08 17:38:23,118 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:38:23,118 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 58 transitions.
[2024-11-08 17:38:23,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)
[2024-11-08 17:38:23,118 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions.
[2024-11-08 17:38:23,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2024-11-08 17:38:23,120 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:38:23,120 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:38:23,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 17:38:23,121 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting checkErr0ASSERT_VIOLATIONMEMORY_LEAK === [checkErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2024-11-08 17:38:23,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:38:23,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1389688533, now seen corresponding path program 1 times
[2024-11-08 17:38:23,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:38:23,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598184616]
[2024-11-08 17:38:23,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:38:23,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:38:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:23,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:23,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:23,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:38:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:23,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 17:38:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:24,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:24,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:38:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:24,129 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-11-08 17:38:24,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:38:24,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598184616]
[2024-11-08 17:38:24,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598184616] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:38:24,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210347144]
[2024-11-08 17:38:24,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:38:24,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:38:24,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:38:24,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:38:24,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 17:38:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:24,276 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 46 conjuncts are in the unsatisfiable core
[2024-11-08 17:38:24,283 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:38:24,375 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 8 treesize of output 1
[2024-11-08 17:38:24,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2024-11-08 17:38:24,785 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2024-11-08 17:38:24,786 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:38:25,176 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-11-08 17:38:25,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210347144] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:38:25,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:38:25,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 10] total 23
[2024-11-08 17:38:25,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523789121]
[2024-11-08 17:38:25,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:38:25,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-11-08 17:38:25,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:38:25,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-08 17:38:25,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506
[2024-11-08 17:38:25,182 INFO L87 Difference]: Start difference. First operand 45 states and 58 transitions. Second operand has 23 states, 20 states have (on average 2.0) internal successors, (40), 17 states have internal predecessors, (40), 8 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12)
[2024-11-08 17:38:26,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:38:26,045 INFO L93 Difference]: Finished difference Result 56 states and 72 transitions.
[2024-11-08 17:38:26,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-08 17:38:26,046 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 2.0) internal successors, (40), 17 states have internal predecessors, (40), 8 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) Word has length 44
[2024-11-08 17:38:26,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:38:26,048 INFO L225 Difference]: With dead ends: 56
[2024-11-08 17:38:26,048 INFO L226 Difference]: Without dead ends: 56
[2024-11-08 17:38:26,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 83 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=108, Invalid=822, Unknown=0, NotChecked=0, Total=930
[2024-11-08 17:38:26,050 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 54 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 17:38:26,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 213 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 17:38:26,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2024-11-08 17:38:26,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56.
[2024-11-08 17:38:26,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 40 states have internal predecessors, (46), 11 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15)
[2024-11-08 17:38:26,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 72 transitions.
[2024-11-08 17:38:26,070 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 72 transitions. Word has length 44
[2024-11-08 17:38:26,070 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:38:26,070 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 72 transitions.
[2024-11-08 17:38:26,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 2.0) internal successors, (40), 17 states have internal predecessors, (40), 8 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12)
[2024-11-08 17:38:26,071 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 72 transitions.
[2024-11-08 17:38:26,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2024-11-08 17:38:26,072 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:38:26,076 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:38:26,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-08 17:38:26,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3
[2024-11-08 17:38:26,277 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [checkErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2024-11-08 17:38:26,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:38:26,277 INFO L85 PathProgramCache]: Analyzing trace with hash 266098275, now seen corresponding path program 1 times
[2024-11-08 17:38:26,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:38:26,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665673737]
[2024-11-08 17:38:26,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:38:26,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:38:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:26,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:26,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:26,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:38:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:26,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 17:38:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:26,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:26,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:38:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:26,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39
[2024-11-08 17:38:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:26,710 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2024-11-08 17:38:26,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:38:26,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665673737]
[2024-11-08 17:38:26,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665673737] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:38:26,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22121438]
[2024-11-08 17:38:26,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:38:26,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:38:26,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:38:26,713 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:38:26,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 17:38:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:26,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-11-08 17:38:26,831 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:38:26,928 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2024-11-08 17:38:26,929 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:38:26,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22121438] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:38:26,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:38:26,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 16
[2024-11-08 17:38:26,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506406130]
[2024-11-08 17:38:26,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:38:26,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 17:38:26,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:38:26,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 17:38:26,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240
[2024-11-08 17:38:26,933 INFO L87 Difference]: Start difference. First operand 56 states and 72 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-08 17:38:27,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:38:27,002 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions.
[2024-11-08 17:38:27,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 17:38:27,003 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 46
[2024-11-08 17:38:27,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:38:27,004 INFO L225 Difference]: With dead ends: 60
[2024-11-08 17:38:27,004 INFO L226 Difference]: Without dead ends: 58
[2024-11-08 17:38:27,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240
[2024-11-08 17:38:27,006 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 5 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:38:27,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 296 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:38:27,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2024-11-08 17:38:27,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56.
[2024-11-08 17:38:27,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 40 states have internal predecessors, (45), 11 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15)
[2024-11-08 17:38:27,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions.
[2024-11-08 17:38:27,013 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 71 transitions. Word has length 46
[2024-11-08 17:38:27,014 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:38:27,014 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 71 transitions.
[2024-11-08 17:38:27,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-08 17:38:27,014 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 71 transitions.
[2024-11-08 17:38:27,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-11-08 17:38:27,016 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:38:27,016 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:38:27,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 17:38:27,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:38:27,221 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting checkErr0ASSERT_VIOLATIONMEMORY_LEAK === [checkErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2024-11-08 17:38:27,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:38:27,221 INFO L85 PathProgramCache]: Analyzing trace with hash 358548016, now seen corresponding path program 1 times
[2024-11-08 17:38:27,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:38:27,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466830352]
[2024-11-08 17:38:27,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:38:27,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:38:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:27,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:28,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:28,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:38:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:28,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 17:38:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:28,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:28,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:38:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:28,081 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-11-08 17:38:28,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:38:28,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466830352]
[2024-11-08 17:38:28,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466830352] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:38:28,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296209742]
[2024-11-08 17:38:28,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:38:28,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:38:28,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:38:28,086 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:38:28,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 17:38:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:28,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 51 conjuncts are in the unsatisfiable core
[2024-11-08 17:38:28,221 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:38:28,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2024-11-08 17:38:28,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2024-11-08 17:38:28,785 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-11-08 17:38:28,785 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:38:29,010 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-11-08 17:38:29,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296209742] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:38:29,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:38:29,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 12] total 21
[2024-11-08 17:38:29,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989559429]
[2024-11-08 17:38:29,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:38:29,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2024-11-08 17:38:29,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:38:29,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2024-11-08 17:38:29,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420
[2024-11-08 17:38:29,013 INFO L87 Difference]: Start difference. First operand 56 states and 71 transitions. Second operand has 21 states, 20 states have (on average 2.4) internal successors, (48), 13 states have internal predecessors, (48), 6 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (13), 9 states have call predecessors, (13), 5 states have call successors, (13)
[2024-11-08 17:38:30,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:38:30,085 INFO L93 Difference]: Finished difference Result 108 states and 135 transitions.
[2024-11-08 17:38:30,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-08 17:38:30,085 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.4) internal successors, (48), 13 states have internal predecessors, (48), 6 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (13), 9 states have call predecessors, (13), 5 states have call successors, (13) Word has length 50
[2024-11-08 17:38:30,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:38:30,087 INFO L225 Difference]: With dead ends: 108
[2024-11-08 17:38:30,087 INFO L226 Difference]: Without dead ends: 108
[2024-11-08 17:38:30,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812
[2024-11-08 17:38:30,088 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 96 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 17:38:30,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 168 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 17:38:30,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states.
[2024-11-08 17:38:30,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 101.
[2024-11-08 17:38:30,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 68 states have (on average 1.2205882352941178) internal successors, (83), 72 states have internal predecessors, (83), 19 states have call successors, (19), 8 states have call predecessors, (19), 12 states have return successors, (28), 20 states have call predecessors, (28), 19 states have call successors, (28)
[2024-11-08 17:38:30,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 130 transitions.
[2024-11-08 17:38:30,100 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 130 transitions. Word has length 50
[2024-11-08 17:38:30,100 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:38:30,100 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 130 transitions.
[2024-11-08 17:38:30,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.4) internal successors, (48), 13 states have internal predecessors, (48), 6 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (13), 9 states have call predecessors, (13), 5 states have call successors, (13)
[2024-11-08 17:38:30,101 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 130 transitions.
[2024-11-08 17:38:30,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-11-08 17:38:30,102 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:38:30,103 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:38:30,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-08 17:38:30,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-11-08 17:38:30,307 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting checkErr0ASSERT_VIOLATIONMEMORY_LEAK === [checkErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2024-11-08 17:38:30,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:38:30,307 INFO L85 PathProgramCache]: Analyzing trace with hash 242184370, now seen corresponding path program 1 times
[2024-11-08 17:38:30,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:38:30,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157610087]
[2024-11-08 17:38:30,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:38:30,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:38:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:30,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:30,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:30,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:38:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:30,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 17:38:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:31,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:31,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:38:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:31,289 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-08 17:38:31,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:38:31,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157610087]
[2024-11-08 17:38:31,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157610087] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:38:31,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450338405]
[2024-11-08 17:38:31,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:38:31,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:38:31,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:38:31,292 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:38:31,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 17:38:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:31,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 59 conjuncts are in the unsatisfiable core
[2024-11-08 17:38:31,421 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:38:31,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2024-11-08 17:38:31,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2024-11-08 17:38:31,580 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 29 treesize of output 13
[2024-11-08 17:38:31,586 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 29 treesize of output 13
[2024-11-08 17:38:32,064 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2024-11-08 17:38:32,064 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:38:32,574 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2024-11-08 17:38:32,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450338405] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:38:32,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:38:32,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 14] total 30
[2024-11-08 17:38:32,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605176006]
[2024-11-08 17:38:32,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:38:32,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states
[2024-11-08 17:38:32,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:38:32,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants.
[2024-11-08 17:38:32,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870
[2024-11-08 17:38:32,579 INFO L87 Difference]: Start difference. First operand 101 states and 130 transitions. Second operand has 30 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 22 states have internal predecessors, (63), 10 states have call successors, (19), 8 states have call predecessors, (19), 9 states have return successors, (16), 11 states have call predecessors, (16), 8 states have call successors, (16)
[2024-11-08 17:38:34,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:38:34,907 INFO L93 Difference]: Finished difference Result 206 states and 275 transitions.
[2024-11-08 17:38:34,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states.
[2024-11-08 17:38:34,908 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 22 states have internal predecessors, (63), 10 states have call successors, (19), 8 states have call predecessors, (19), 9 states have return successors, (16), 11 states have call predecessors, (16), 8 states have call successors, (16) Word has length 50
[2024-11-08 17:38:34,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:38:34,911 INFO L225 Difference]: With dead ends: 206
[2024-11-08 17:38:34,911 INFO L226 Difference]: Without dead ends: 204
[2024-11-08 17:38:34,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=305, Invalid=2665, Unknown=0, NotChecked=0, Total=2970
[2024-11-08 17:38:34,916 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 123 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:38:34,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 408 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-08 17:38:34,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states.
[2024-11-08 17:38:34,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 197.
[2024-11-08 17:38:34,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 135 states have (on average 1.2222222222222223) internal successors, (165), 140 states have internal predecessors, (165), 35 states have call successors, (35), 17 states have call predecessors, (35), 25 states have return successors, (68), 39 states have call predecessors, (68), 35 states have call successors, (68)
[2024-11-08 17:38:34,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 268 transitions.
[2024-11-08 17:38:34,950 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 268 transitions. Word has length 50
[2024-11-08 17:38:34,950 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:38:34,950 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 268 transitions.
[2024-11-08 17:38:34,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 22 states have internal predecessors, (63), 10 states have call successors, (19), 8 states have call predecessors, (19), 9 states have return successors, (16), 11 states have call predecessors, (16), 8 states have call successors, (16)
[2024-11-08 17:38:34,951 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 268 transitions.
[2024-11-08 17:38:34,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2024-11-08 17:38:34,954 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:38:34,954 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:38:34,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-08 17:38:35,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:38:35,159 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting checkErr0ASSERT_VIOLATIONMEMORY_LEAK === [checkErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2024-11-08 17:38:35,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:38:35,159 INFO L85 PathProgramCache]: Analyzing trace with hash -677748063, now seen corresponding path program 2 times
[2024-11-08 17:38:35,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:38:35,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126332615]
[2024-11-08 17:38:35,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:38:35,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:38:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:35,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:36,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:36,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:38:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:36,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:36,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:38:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:36,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-08 17:38:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:36,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:38:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:36,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 17:38:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:38:36,402 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2024-11-08 17:38:36,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:38:36,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126332615]
[2024-11-08 17:38:36,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126332615] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:38:36,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460995114]
[2024-11-08 17:38:36,403 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 17:38:36,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:38:36,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:38:36,405 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:38:36,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 17:38:36,567 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 17:38:36,567 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 17:38:36,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 65 conjuncts are in the unsatisfiable core
[2024-11-08 17:38:36,576 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:38:36,618 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 17:38:36,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2024-11-08 17:38:37,282 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked.
[2024-11-08 17:38:37,283 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:38:38,007 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked.
[2024-11-08 17:38:38,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460995114] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:38:38,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:38:38,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 19] total 44
[2024-11-08 17:38:38,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252816414]
[2024-11-08 17:38:38,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:38:38,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states
[2024-11-08 17:38:38,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:38:38,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants.
[2024-11-08 17:38:38,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1733, Unknown=0, NotChecked=0, Total=1892
[2024-11-08 17:38:38,011 INFO L87 Difference]: Start difference. First operand 197 states and 268 transitions. Second operand has 44 states, 37 states have (on average 2.054054054054054) internal successors, (76), 34 states have internal predecessors, (76), 15 states have call successors, (21), 7 states have call predecessors, (21), 12 states have return successors, (17), 16 states have call predecessors, (17), 11 states have call successors, (17)
[2024-11-08 17:38:39,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:38:39,566 INFO L93 Difference]: Finished difference Result 296 states and 406 transitions.
[2024-11-08 17:38:39,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states.
[2024-11-08 17:38:39,567 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 37 states have (on average 2.054054054054054) internal successors, (76), 34 states have internal predecessors, (76), 15 states have call successors, (21), 7 states have call predecessors, (21), 12 states have return successors, (17), 16 states have call predecessors, (17), 11 states have call successors, (17) Word has length 62
[2024-11-08 17:38:39,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:38:39,570 INFO L225 Difference]: With dead ends: 296
[2024-11-08 17:38:39,570 INFO L226 Difference]: Without dead ends: 296
[2024-11-08 17:38:39,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=274, Invalid=3032, Unknown=0, NotChecked=0, Total=3306
[2024-11-08 17:38:39,576 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 91 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-08 17:38:39,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 362 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-08 17:38:39,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states.
[2024-11-08 17:38:39,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 241.
[2024-11-08 17:38:39,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 167 states have (on average 1.215568862275449) internal successors, (203), 172 states have internal predecessors, (203), 41 states have call successors, (41), 21 states have call predecessors, (41), 31 states have return successors, (82), 47 states have call predecessors, (82), 41 states have call successors, (82)
[2024-11-08 17:38:39,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 326 transitions.
[2024-11-08 17:38:39,625 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 326 transitions. Word has length 62
[2024-11-08 17:38:39,626 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:38:39,626 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 326 transitions.
[2024-11-08 17:38:39,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 37 states have (on average 2.054054054054054) internal successors, (76), 34 states have internal predecessors, (76), 15 states have call successors, (21), 7 states have call predecessors, (21), 12 states have return successors, (17), 16 states have call predecessors, (17), 11 states have call successors, (17)
[2024-11-08 17:38:39,626 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 326 transitions.
[2024-11-08 17:38:39,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-11-08 17:38:39,632 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:38:39,632 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 17:38:39,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-08 17:38:39,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:38:39,833 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [checkErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] ===
[2024-11-08 17:38:39,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:38:39,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1572615861, now seen corresponding path program 1 times
[2024-11-08 17:38:39,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:38:39,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033917192]
[2024-11-08 17:38:39,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:38:39,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:38:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:38:39,856 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 17:38:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:38:39,890 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 17:38:39,890 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 17:38:39,891 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining)
[2024-11-08 17:38:39,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining)
[2024-11-08 17:38:39,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-08 17:38:39,897 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:38:39,925 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 17:38:39,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:38:39 BoogieIcfgContainer
[2024-11-08 17:38:39,928 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 17:38:39,928 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 17:38:39,928 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 17:38:39,929 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 17:38:39,929 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:38:20" (3/4) ...
[2024-11-08 17:38:39,930 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample
[2024-11-08 17:38:40,004 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/bin/uautomizer-verify-jihMAELWvX/witness.graphml
[2024-11-08 17:38:40,005 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 17:38:40,005 INFO L158 Benchmark]: Toolchain (without parser) took 20201.17ms. Allocated memory was 157.3MB in the beginning and 327.2MB in the end (delta: 169.9MB). Free memory was 122.3MB in the beginning and 193.0MB in the end (delta: -70.7MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB.
[2024-11-08 17:38:40,006 INFO L158 Benchmark]: CDTParser took 1.16ms. Allocated memory is still 107.0MB. Free memory was 76.0MB in the beginning and 76.0MB in the end (delta: 29.3kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:38:40,006 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.78ms. Allocated memory is still 157.3MB. Free memory was 122.3MB in the beginning and 109.3MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-08 17:38:40,006 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.88ms. Allocated memory is still 157.3MB. Free memory was 109.3MB in the beginning and 107.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 17:38:40,006 INFO L158 Benchmark]: Boogie Preprocessor took 51.52ms. Allocated memory is still 157.3MB. Free memory was 107.5MB in the beginning and 105.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 17:38:40,007 INFO L158 Benchmark]: RCFGBuilder took 402.95ms. Allocated memory is still 157.3MB. Free memory was 105.5MB in the beginning and 90.5MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2024-11-08 17:38:40,007 INFO L158 Benchmark]: TraceAbstraction took 19307.52ms. Allocated memory was 157.3MB in the beginning and 327.2MB in the end (delta: 169.9MB). Free memory was 89.9MB in the beginning and 196.1MB in the end (delta: -106.2MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB.
[2024-11-08 17:38:40,007 INFO L158 Benchmark]: Witness Printer took 76.68ms. Allocated memory is still 327.2MB. Free memory was 196.1MB in the beginning and 193.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 17:38:40,009 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.16ms. Allocated memory is still 107.0MB. Free memory was 76.0MB in the beginning and 76.0MB in the end (delta: 29.3kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 321.78ms. Allocated memory is still 157.3MB. Free memory was 122.3MB in the beginning and 109.3MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 31.88ms. Allocated memory is still 157.3MB. Free memory was 109.3MB in the beginning and 107.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 51.52ms. Allocated memory is still 157.3MB. Free memory was 107.5MB in the beginning and 105.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 402.95ms. Allocated memory is still 157.3MB. Free memory was 105.5MB in the beginning and 90.5MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 19307.52ms. Allocated memory was 157.3MB in the beginning and 327.2MB in the end (delta: 169.9MB). Free memory was 89.9MB in the beginning and 196.1MB in the end (delta: -106.2MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB.
* Witness Printer took 76.68ms. Allocated memory is still 327.2MB. Free memory was 196.1MB in the beginning and 193.0MB in the end (delta: 3.1MB). 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: 65]: not all allocated memory was freed
not all allocated memory was freed
We found a FailurePath:
[L66] CALL, EXPR nondet_tree()
[L24] COND FALSE !(__VERIFIER_nondet_bool())
[L27] struct node *n = (struct node *)malloc(sizeof(struct node));
[L28] n->data = __VERIFIER_nondet_int()
[L29] CALL, EXPR nondet_tree()
[L24] COND TRUE __VERIFIER_nondet_bool()
[L25] return 0;
VAL [\result={0:0}]
[L29] RET, EXPR nondet_tree()
VAL [n={-1:0}]
[L29] n->left = nondet_tree()
[L30] CALL, EXPR nondet_tree()
[L24] COND TRUE __VERIFIER_nondet_bool()
[L25] return 0;
VAL [\result={0:0}]
[L30] RET, EXPR nondet_tree()
VAL [n={-1:0}]
[L30] n->right = nondet_tree()
[L31] return n;
VAL [\result={-1:0}]
[L66] RET, EXPR nondet_tree()
[L66] CALL task(nondet_tree())
[L61] CALL, EXPR max(n)
VAL [\old(n)={-1:0}]
[L36] COND FALSE !(!n)
[L39] EXPR n->data
[L39] int a = n->data;
[L40] EXPR n->left
VAL [\old(n)={-1:0}, a=-2147483648, n={-1:0}]
[L40] CALL, EXPR max(n->left)
VAL [\old(n)={0:0}]
[L36] COND TRUE !n
[L37] return -2147483648;
VAL [\old(n)={0:0}, \result=-2147483648]
[L40] RET, EXPR max(n->left)
VAL [\old(n)={-1:0}, a=-2147483648, n={-1:0}]
[L40] int b = max(n->left);
[L41] EXPR n->right
VAL [\old(n)={-1:0}, a=-2147483648, b=-2147483648]
[L41] CALL, EXPR max(n->right)
VAL [\old(n)={0:0}]
[L36] COND TRUE !n
[L37] return -2147483648;
VAL [\old(n)={0:0}, \result=-2147483648]
[L41] RET, EXPR max(n->right)
VAL [\old(n)={-1:0}, a=-2147483648, b=-2147483648]
[L41] int c = max(n->right);
[L42] COND TRUE b >= a && b >= c
[L42] return b;
VAL [\old(n)={-1:0}, \result=-2147483648]
[L61] RET, EXPR max(n)
VAL [n={-1:0}]
[L61] int a = max(n);
[L62] CALL check(n, a)
[L49] COND TRUE \read(*n)
[L50] EXPR n->data
[L50] CALL __VERIFIER_assert(n->data <= a)
[L15] COND FALSE !(!cond)
[L50] RET __VERIFIER_assert(n->data <= a)
[L52] COND FALSE !(__VERIFIER_nondet_bool())
[L55] EXPR n->right
VAL [\old(a)=-2147483648, \old(n)={-1:0}, a=-2147483648]
[L55] CALL check(n->right, a)
VAL [\old(a)=-2147483648, \old(n)={0:0}]
[L49] COND FALSE !(\read(*n))
[L55] RET check(n->right, a)
VAL [\old(a)=-2147483648, \old(n)={-1:0}, a=-2147483648]
[L62] RET check(n, a)
VAL [a=-2147483648, n={-1:0}]
[L66] RET task(nondet_tree())
- UnprovableResult [Line: 13]: Unable to prove that all allocated memory was freed
Unable to prove that all allocated memory was freed
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 44 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 19.2s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 500 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 464 mSDsluCounter, 1731 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1551 mSDsCounter, 176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4320 IncrementalHoareTripleChecker+Invalid, 4496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 176 mSolverCounterUnsat, 180 mSDtfsCounter, 4320 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 689 GetRequests, 480 SyntacticMatches, 9 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 1393 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=241occurred in iteration=8, InterpolantAutomatonStates: 121, 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, 8 MinimizatonAttempts, 72 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 630 NumberOfCodeBlocks, 630 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 764 ConstructedInterpolants, 65 QuantifiedInterpolants, 5296 SizeOfPredicates, 31 NumberOfNonLiveVariables, 1424 ConjunctsInSsa, 240 ConjunctsInUnsatCore, 17 InterpolantComputations, 4 PerfectInterpolantSequences, 403/471 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 17:38:40,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fe0e310-e86b-475e-b85a-bde596a4ed5b/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(valid-memcleanup)