./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-properties/list_flag-2.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/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_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_flag-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4547628201bbb61f481f84914c46868091db8c6a3d0c4d8890951b495ae3c7da
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:31:58,053 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:31:58,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-11-08 17:31:58,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:31:58,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:31:58,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:31:58,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:31:58,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:31:58,208 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:31:58,210 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 17:31:58,210 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:31:58,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:31:58,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:31:58,212 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 17:31:58,214 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 17:31:58,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:31:58,215 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 17:31:58,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 17:31:58,216 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 17:31:58,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 17:31:58,217 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-08 17:31:58,219 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-08 17:31:58,220 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-08 17:31:58,220 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:31:58,221 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-08 17:31:58,221 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 17:31:58,222 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 17:31:58,222 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 17:31:58,222 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 17:31:58,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:31:58,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 17:31:58,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:31:58,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 17:31:58,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:31:58,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:31:58,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:31:58,225 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 17:31:58,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 17:31:58,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:31:58,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:31:58,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:31:58,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:31:58,228 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_976db376-abed-40e9-b705-4b67b1dcf72c/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4547628201bbb61f481f84914c46868091db8c6a3d0c4d8890951b495ae3c7da
[2024-11-08 17:31:58,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:31:58,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:31:58,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:31:58,610 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 17:31:58,611 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 17:31:58,613 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/list-properties/list_flag-2.i
Unable to find full path for "g++"
[2024-11-08 17:32:00,725 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:32:01,057 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 17:32:01,058 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/sv-benchmarks/c/list-properties/list_flag-2.i
[2024-11-08 17:32:01,079 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/data/8e3665af0/d576cdf5fbeb48e788d632186b02d229/FLAG2a7ad925d
[2024-11-08 17:32:01,095 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/data/8e3665af0/d576cdf5fbeb48e788d632186b02d229
[2024-11-08 17:32:01,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:32:01,100 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:32:01,102 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:32:01,102 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:32:01,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:32:01,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:32:01" (1/1) ...
[2024-11-08 17:32:01,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@823a066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:01, skipping insertion in model container
[2024-11-08 17:32:01,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:32:01" (1/1) ...
[2024-11-08 17:32:01,168 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:32:01,628 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:32:01,639 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 17:32:01,687 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:32:01,724 INFO L204 MainTranslator]: Completed translation
[2024-11-08 17:32:01,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:01 WrapperNode
[2024-11-08 17:32:01,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:32:01,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:32:01,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:32:01,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:32:01,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:01" (1/1) ...
[2024-11-08 17:32:01,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:01" (1/1) ...
[2024-11-08 17:32:01,789 INFO L138 Inliner]: procedures = 124, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68
[2024-11-08 17:32:01,790 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:32:01,791 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:32:01,791 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:32:01,791 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:32:01,809 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:01" (1/1) ...
[2024-11-08 17:32:01,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:01" (1/1) ...
[2024-11-08 17:32:01,813 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:01" (1/1) ...
[2024-11-08 17:32:01,831 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4].
[2024-11-08 17:32:01,832 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:01" (1/1) ...
[2024-11-08 17:32:01,832 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:01" (1/1) ...
[2024-11-08 17:32:01,843 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:01" (1/1) ...
[2024-11-08 17:32:01,847 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:01" (1/1) ...
[2024-11-08 17:32:01,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:01" (1/1) ...
[2024-11-08 17:32:01,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:01" (1/1) ...
[2024-11-08 17:32:01,859 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:32:01,860 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:32:01,860 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:32:01,860 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:32:01,861 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:01" (1/1) ...
[2024-11-08 17:32:01,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:32:01,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:32:01,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:32:01,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:32:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure myexit
[2024-11-08 17:32:01,924 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit
[2024-11-08 17:32:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-08 17:32:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-08 17:32:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-08 17:32:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-08 17:32:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-08 17:32:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:32:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-08 17:32:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-08 17:32:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-08 17:32:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-08 17:32:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 17:32:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-08 17:32:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:32:01,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:32:02,081 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 17:32:02,084 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:32:02,110 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true;
[2024-11-08 17:32:02,382 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live.
[2024-11-08 17:32:02,382 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 17:32:02,409 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:32:02,409 INFO L316 CfgBuilder]: Removed 3 assume(true) statements.
[2024-11-08 17:32:02,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:32:02 BoogieIcfgContainer
[2024-11-08 17:32:02,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:32:02,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:32:02,416 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:32:02,419 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:32:02,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:32:01" (1/3) ...
[2024-11-08 17:32:02,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4f4db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:32:02, skipping insertion in model container
[2024-11-08 17:32:02,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:01" (2/3) ...
[2024-11-08 17:32:02,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4f4db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:32:02, skipping insertion in model container
[2024-11-08 17:32:02,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:32:02" (3/3) ...
[2024-11-08 17:32:02,423 INFO L112 eAbstractionObserver]: Analyzing ICFG list_flag-2.i
[2024-11-08 17:32:02,447 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:32:02,448 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations.
[2024-11-08 17:32:02,496 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:32:02,504 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;@37c170b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:32:02,504 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations.
[2024-11-08 17:32:02,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 58 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:02,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-08 17:32:02,520 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:32:02,520 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-08 17:32:02,521 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2024-11-08 17:32:02,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:32:02,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1037517480, now seen corresponding path program 1 times
[2024-11-08 17:32:02,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:32:02,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86929893]
[2024-11-08 17:32:02,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:32:02,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:32:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:32:02,856 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 17:32:02,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:32:02,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86929893]
[2024-11-08 17:32:02,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86929893] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:32:02,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:32:02,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:32:02,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770290195]
[2024-11-08 17:32:02,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:32:02,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 17:32:02,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:32:02,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 17:32:02,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:32:02,910 INFO L87 Difference]: Start difference. First operand has 60 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 58 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:02,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:32:02,925 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions.
[2024-11-08 17:32:02,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 17:32:02,927 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2024-11-08 17:32:02,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:32:02,932 INFO L225 Difference]: With dead ends: 59
[2024-11-08 17:32:02,932 INFO L226 Difference]: Without dead ends: 53
[2024-11-08 17:32:02,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:32:02,937 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:32:02,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:32:02,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2024-11-08 17:32:02,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2024-11-08 17:32:02,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 52 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:02,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions.
[2024-11-08 17:32:02,992 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 6
[2024-11-08 17:32:02,992 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:32:02,992 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions.
[2024-11-08 17:32:02,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:02,993 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions.
[2024-11-08 17:32:02,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-08 17:32:02,993 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:32:02,994 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:32:02,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 17:32:02,994 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2024-11-08 17:32:02,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:32:02,997 INFO L85 PathProgramCache]: Analyzing trace with hash 2098237136, now seen corresponding path program 1 times
[2024-11-08 17:32:02,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:32:02,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019694182]
[2024-11-08 17:32:02,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:32:03,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:32:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:32:03,192 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 17:32:03,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:32:03,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019694182]
[2024-11-08 17:32:03,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019694182] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:32:03,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:32:03,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:32:03,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606239522]
[2024-11-08 17:32:03,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:32:03,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:32:03,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:32:03,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:32:03,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:32:03,198 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:03,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:32:03,382 INFO L93 Difference]: Finished difference Result 56 states and 67 transitions.
[2024-11-08 17:32:03,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:32:03,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-11-08 17:32:03,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:32:03,387 INFO L225 Difference]: With dead ends: 56
[2024-11-08 17:32:03,387 INFO L226 Difference]: Without dead ends: 56
[2024-11-08 17:32:03,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:32:03,392 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 47 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:32:03,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 48 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:32:03,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2024-11-08 17:32:03,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56.
[2024-11-08 17:32:03,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 39 states have (on average 1.7179487179487178) internal successors, (67), 55 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:03,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions.
[2024-11-08 17:32:03,401 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 7
[2024-11-08 17:32:03,402 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:32:03,402 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions.
[2024-11-08 17:32:03,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:03,402 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions.
[2024-11-08 17:32:03,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-08 17:32:03,403 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:32:03,403 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:32:03,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 17:32:03,404 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2024-11-08 17:32:03,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:32:03,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2098237137, now seen corresponding path program 1 times
[2024-11-08 17:32:03,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:32:03,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262148941]
[2024-11-08 17:32:03,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:32:03,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:32:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:32:03,616 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 17:32:03,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:32:03,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262148941]
[2024-11-08 17:32:03,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262148941] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:32:03,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:32:03,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:32:03,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353412243]
[2024-11-08 17:32:03,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:32:03,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:32:03,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:32:03,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:32:03,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:32:03,620 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:03,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:32:03,787 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions.
[2024-11-08 17:32:03,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:32:03,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-11-08 17:32:03,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:32:03,789 INFO L225 Difference]: With dead ends: 65
[2024-11-08 17:32:03,790 INFO L226 Difference]: Without dead ends: 65
[2024-11-08 17:32:03,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:32:03,791 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 47 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:32:03,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 65 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:32:03,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2024-11-08 17:32:03,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65.
[2024-11-08 17:32:03,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 48 states have (on average 1.5208333333333333) internal successors, (73), 64 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:03,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions.
[2024-11-08 17:32:03,804 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 7
[2024-11-08 17:32:03,805 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:32:03,805 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions.
[2024-11-08 17:32:03,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:03,805 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions.
[2024-11-08 17:32:03,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-08 17:32:03,809 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:32:03,809 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:32:03,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 17:32:03,810 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2024-11-08 17:32:03,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:32:03,811 INFO L85 PathProgramCache]: Analyzing trace with hash 572599995, now seen corresponding path program 1 times
[2024-11-08 17:32:03,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:32:03,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074791811]
[2024-11-08 17:32:03,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:32:03,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:32:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:32:03,861 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 17:32:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:32:03,925 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 17:32:03,926 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 17:32:03,928 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK (21 of 22 remaining)
[2024-11-08 17:32:03,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 22 remaining)
[2024-11-08 17:32:03,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 22 remaining)
[2024-11-08 17:32:03,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 22 remaining)
[2024-11-08 17:32:03,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 22 remaining)
[2024-11-08 17:32:03,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 22 remaining)
[2024-11-08 17:32:03,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 22 remaining)
[2024-11-08 17:32:03,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 22 remaining)
[2024-11-08 17:32:03,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 22 remaining)
[2024-11-08 17:32:03,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 22 remaining)
[2024-11-08 17:32:03,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 22 remaining)
[2024-11-08 17:32:03,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 22 remaining)
[2024-11-08 17:32:03,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 22 remaining)
[2024-11-08 17:32:03,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 22 remaining)
[2024-11-08 17:32:03,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 22 remaining)
[2024-11-08 17:32:03,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 22 remaining)
[2024-11-08 17:32:03,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 22 remaining)
[2024-11-08 17:32:03,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 22 remaining)
[2024-11-08 17:32:03,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 22 remaining)
[2024-11-08 17:32:03,942 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 22 remaining)
[2024-11-08 17:32:03,943 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 22 remaining)
[2024-11-08 17:32:03,943 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK (0 of 22 remaining)
[2024-11-08 17:32:03,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 17:32:03,949 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-11-08 17:32:03,976 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 17:32:03,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:32:03 BoogieIcfgContainer
[2024-11-08 17:32:03,983 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 17:32:03,984 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 17:32:03,984 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 17:32:03,984 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 17:32:03,985 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:32:02" (3/4) ...
[2024-11-08 17:32:03,989 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-08 17:32:03,990 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 17:32:03,991 INFO L158 Benchmark]: Toolchain (without parser) took 2890.98ms. Allocated memory is still 151.0MB. Free memory was 116.8MB in the beginning and 69.7MB in the end (delta: 47.1MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB.
[2024-11-08 17:32:03,992 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 104.9MB. Free memory is still 56.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:32:03,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 624.97ms. Allocated memory is still 151.0MB. Free memory was 116.8MB in the beginning and 97.6MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
[2024-11-08 17:32:03,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.62ms. Allocated memory is still 151.0MB. Free memory was 97.2MB in the beginning and 95.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 17:32:03,997 INFO L158 Benchmark]: Boogie Preprocessor took 68.17ms. Allocated memory is still 151.0MB. Free memory was 95.4MB in the beginning and 93.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 17:32:03,998 INFO L158 Benchmark]: RCFGBuilder took 549.98ms. Allocated memory is still 151.0MB. Free memory was 93.0MB in the beginning and 75.6MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-08 17:32:03,998 INFO L158 Benchmark]: TraceAbstraction took 1567.96ms. Allocated memory is still 151.0MB. Free memory was 74.9MB in the beginning and 70.5MB in the end (delta: 4.4MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB.
[2024-11-08 17:32:03,999 INFO L158 Benchmark]: Witness Printer took 6.33ms. Allocated memory is still 151.0MB. Free memory was 70.5MB in the beginning and 69.7MB in the end (delta: 802.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 17:32:04,005 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.37ms. Allocated memory is still 104.9MB. Free memory is still 56.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 624.97ms. Allocated memory is still 151.0MB. Free memory was 116.8MB in the beginning and 97.6MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 62.62ms. Allocated memory is still 151.0MB. Free memory was 97.2MB in the beginning and 95.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 68.17ms. Allocated memory is still 151.0MB. Free memory was 95.4MB in the beginning and 93.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 549.98ms. Allocated memory is still 151.0MB. Free memory was 93.0MB in the beginning and 75.6MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 1567.96ms. Allocated memory is still 151.0MB. Free memory was 74.9MB in the beginning and 70.5MB in the end (delta: 4.4MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB.
* Witness Printer took 6.33ms. Allocated memory is still 151.0MB. Free memory was 70.5MB in the beginning and 69.7MB in the end (delta: 802.6kB). 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
- UnprovableResult [Line: 531]: Unable to prove that all allocated memory was freed
Unable to prove that all allocated memory was freed
Reason: overapproximation of memtrack at line 531.
Possible FailurePath:
[L532] int flag = __VERIFIER_nondet_int();
[L533] List p, a, t;
[L534] a = (List) malloc(sizeof(struct node))
[L535] COND FALSE !(a == 0)
VAL [a={-1:0}, flag=0]
[L536] p = a
VAL [a={-1:0}, flag=0, p={-1:0}]
[L537] COND FALSE !(__VERIFIER_nondet_int())
[L548] p->h = 3
[L549] p = a
VAL [flag=0, p={-1:0}]
[L550] COND FALSE !(\read(flag))
[L554] EXPR p->h
[L554] COND FALSE !(p->h == 2)
[L556] EXPR p->h
[L556] COND FALSE !(p->h != 3)
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 12]: 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 2 procedures, 61 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 94 mSDsluCounter, 178 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 132 IncrementalHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 123 mSDtfsCounter, 132 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=3, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 77 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 could not prove your program: unable to determine feasibility of some traces
[2024-11-08 17:32:04,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/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_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_flag-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4547628201bbb61f481f84914c46868091db8c6a3d0c4d8890951b495ae3c7da
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:32:06,905 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:32:07,017 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2024-11-08 17:32:07,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:32:07,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:32:07,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:32:07,072 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:32:07,072 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:32:07,073 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:32:07,073 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 17:32:07,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:32:07,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:32:07,075 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:32:07,075 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 17:32:07,075 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 17:32:07,076 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:32:07,076 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 17:32:07,077 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 17:32:07,077 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 17:32:07,077 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 17:32:07,078 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-08 17:32:07,081 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-08 17:32:07,082 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-08 17:32:07,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:32:07,082 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-08 17:32:07,083 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-08 17:32:07,083 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 17:32:07,083 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-08 17:32:07,083 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 17:32:07,084 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 17:32:07,084 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 17:32:07,084 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:32:07,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 17:32:07,088 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:32:07,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 17:32:07,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:32:07,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:32:07,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:32:07,089 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-08 17:32:07,090 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-08 17:32:07,090 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:32:07,092 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:32:07,092 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:32:07,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:32:07,092 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_976db376-abed-40e9-b705-4b67b1dcf72c/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4547628201bbb61f481f84914c46868091db8c6a3d0c4d8890951b495ae3c7da
[2024-11-08 17:32:07,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:32:07,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:32:07,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:32:07,580 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 17:32:07,580 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 17:32:07,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/list-properties/list_flag-2.i
Unable to find full path for "g++"
[2024-11-08 17:32:10,089 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:32:10,408 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 17:32:10,409 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/sv-benchmarks/c/list-properties/list_flag-2.i
[2024-11-08 17:32:10,428 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/data/bd1ad0ab0/15baa1f0a26347559208332f9cdaf9f2/FLAG480b007dd
[2024-11-08 17:32:10,442 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/data/bd1ad0ab0/15baa1f0a26347559208332f9cdaf9f2
[2024-11-08 17:32:10,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:32:10,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:32:10,449 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:32:10,449 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:32:10,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:32:10,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:32:10" (1/1) ...
[2024-11-08 17:32:10,460 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f20a11c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:10, skipping insertion in model container
[2024-11-08 17:32:10,460 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:32:10" (1/1) ...
[2024-11-08 17:32:10,519 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:32:11,067 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:32:11,086 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 17:32:11,146 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:32:11,182 INFO L204 MainTranslator]: Completed translation
[2024-11-08 17:32:11,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:11 WrapperNode
[2024-11-08 17:32:11,184 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:32:11,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:32:11,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:32:11,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:32:11,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:11" (1/1) ...
[2024-11-08 17:32:11,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:11" (1/1) ...
[2024-11-08 17:32:11,253 INFO L138 Inliner]: procedures = 127, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67
[2024-11-08 17:32:11,253 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:32:11,254 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:32:11,254 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:32:11,254 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:32:11,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:11" (1/1) ...
[2024-11-08 17:32:11,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:11" (1/1) ...
[2024-11-08 17:32:11,272 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:11" (1/1) ...
[2024-11-08 17:32:11,302 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4].
[2024-11-08 17:32:11,303 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:11" (1/1) ...
[2024-11-08 17:32:11,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:11" (1/1) ...
[2024-11-08 17:32:11,316 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:11" (1/1) ...
[2024-11-08 17:32:11,323 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:11" (1/1) ...
[2024-11-08 17:32:11,329 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:11" (1/1) ...
[2024-11-08 17:32:11,331 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:11" (1/1) ...
[2024-11-08 17:32:11,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:32:11,339 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:32:11,339 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:32:11,339 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:32:11,340 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:11" (1/1) ...
[2024-11-08 17:32:11,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:32:11,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:32:11,383 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:32:11,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:32:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure myexit
[2024-11-08 17:32:11,414 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit
[2024-11-08 17:32:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-11-08 17:32:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-11-08 17:32:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-08 17:32:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:32:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-08 17:32:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-08 17:32:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-08 17:32:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-08 17:32:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-11-08 17:32:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-11-08 17:32:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-08 17:32:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-08 17:32:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:32:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:32:11,570 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 17:32:11,572 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:32:11,597 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true;
[2024-11-08 17:32:11,929 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live.
[2024-11-08 17:32:11,931 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 17:32:11,951 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:32:11,951 INFO L316 CfgBuilder]: Removed 3 assume(true) statements.
[2024-11-08 17:32:11,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:32:11 BoogieIcfgContainer
[2024-11-08 17:32:11,952 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:32:11,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:32:11,956 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:32:11,960 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:32:11,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:32:10" (1/3) ...
[2024-11-08 17:32:11,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70efee9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:32:11, skipping insertion in model container
[2024-11-08 17:32:11,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:32:11" (2/3) ...
[2024-11-08 17:32:11,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70efee9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:32:11, skipping insertion in model container
[2024-11-08 17:32:11,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:32:11" (3/3) ...
[2024-11-08 17:32:11,963 INFO L112 eAbstractionObserver]: Analyzing ICFG list_flag-2.i
[2024-11-08 17:32:11,977 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:32:11,977 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations.
[2024-11-08 17:32:12,026 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:32:12,035 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;@7bbbb813, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:32:12,036 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations.
[2024-11-08 17:32:12,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 58 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:12,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-08 17:32:12,052 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:32:12,053 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-08 17:32:12,053 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2024-11-08 17:32:12,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:32:12,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1037517480, now seen corresponding path program 1 times
[2024-11-08 17:32:12,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:32:12,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844874369]
[2024-11-08 17:32:12,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:32:12,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:32:12,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:32:12,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:32:12,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 17:32:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:32:12,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-08 17:32:12,248 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:32:12,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:32:12,280 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:32:12,281 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:32:12,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844874369]
[2024-11-08 17:32:12,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844874369] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:32:12,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:32:12,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:32:12,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612028281]
[2024-11-08 17:32:12,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:32:12,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 17:32:12,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:32:12,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 17:32:12,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:32:12,359 INFO L87 Difference]: Start difference. First operand has 60 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 58 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:12,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:32:12,380 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions.
[2024-11-08 17:32:12,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 17:32:12,382 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2024-11-08 17:32:12,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:32:12,387 INFO L225 Difference]: With dead ends: 59
[2024-11-08 17:32:12,388 INFO L226 Difference]: Without dead ends: 53
[2024-11-08 17:32:12,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:32:12,393 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:32:12,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:32:12,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2024-11-08 17:32:12,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2024-11-08 17:32:12,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 52 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:12,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions.
[2024-11-08 17:32:12,433 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 6
[2024-11-08 17:32:12,433 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:32:12,434 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions.
[2024-11-08 17:32:12,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:12,434 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions.
[2024-11-08 17:32:12,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-08 17:32:12,435 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:32:12,435 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:32:12,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 17:32:12,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:32:12,637 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2024-11-08 17:32:12,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:32:12,637 INFO L85 PathProgramCache]: Analyzing trace with hash 2098237136, now seen corresponding path program 1 times
[2024-11-08 17:32:12,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:32:12,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [679644085]
[2024-11-08 17:32:12,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:32:12,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:32:12,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:32:12,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:32:12,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 17:32:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:32:12,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 17:32:12,742 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:32:12,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2024-11-08 17:32:12,873 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 17:32:12,874 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:32:12,874 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:32:12,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679644085]
[2024-11-08 17:32:12,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679644085] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:32:12,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:32:12,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:32:12,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136576955]
[2024-11-08 17:32:12,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:32:12,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:32:12,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:32:12,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:32:12,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:32:12,878 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:13,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:32:13,143 INFO L93 Difference]: Finished difference Result 56 states and 67 transitions.
[2024-11-08 17:32:13,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:32:13,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-11-08 17:32:13,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:32:13,147 INFO L225 Difference]: With dead ends: 56
[2024-11-08 17:32:13,147 INFO L226 Difference]: Without dead ends: 56
[2024-11-08 17:32:13,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:32:13,151 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 47 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:32:13,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 48 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:32:13,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2024-11-08 17:32:13,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56.
[2024-11-08 17:32:13,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 39 states have (on average 1.7179487179487178) internal successors, (67), 55 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:13,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions.
[2024-11-08 17:32:13,166 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 7
[2024-11-08 17:32:13,167 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:32:13,167 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions.
[2024-11-08 17:32:13,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:13,167 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions.
[2024-11-08 17:32:13,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-08 17:32:13,168 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:32:13,168 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:32:13,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 17:32:13,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:32:13,369 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2024-11-08 17:32:13,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:32:13,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2098237137, now seen corresponding path program 1 times
[2024-11-08 17:32:13,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:32:13,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1486841627]
[2024-11-08 17:32:13,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:32:13,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:32:13,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:32:13,375 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:32:13,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 17:32:13,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:32:13,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 17:32:13,508 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:32:13,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-08 17:32:13,653 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 17:32:13,653 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:32:13,654 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:32:13,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486841627]
[2024-11-08 17:32:13,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486841627] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:32:13,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:32:13,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:32:13,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538165304]
[2024-11-08 17:32:13,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:32:13,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:32:13,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:32:13,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:32:13,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:32:13,658 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:13,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:32:13,970 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions.
[2024-11-08 17:32:13,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:32:13,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-11-08 17:32:13,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:32:13,972 INFO L225 Difference]: With dead ends: 65
[2024-11-08 17:32:13,972 INFO L226 Difference]: Without dead ends: 65
[2024-11-08 17:32:13,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:32:13,974 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 47 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:32:13,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 65 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:32:13,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2024-11-08 17:32:13,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65.
[2024-11-08 17:32:13,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 48 states have (on average 1.5208333333333333) internal successors, (73), 64 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:13,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions.
[2024-11-08 17:32:13,981 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 7
[2024-11-08 17:32:13,981 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:32:13,981 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions.
[2024-11-08 17:32:13,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:32:13,982 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions.
[2024-11-08 17:32:13,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-08 17:32:13,982 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:32:13,983 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:32:14,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-08 17:32:14,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:32:14,192 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2024-11-08 17:32:14,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:32:14,192 INFO L85 PathProgramCache]: Analyzing trace with hash 572599995, now seen corresponding path program 1 times
[2024-11-08 17:32:14,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:32:14,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1520018922]
[2024-11-08 17:32:14,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:32:14,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:32:14,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:32:14,197 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:32:14,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 17:32:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:32:14,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 17:32:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:32:14,351 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace
[2024-11-08 17:32:14,351 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 17:32:14,352 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK (21 of 22 remaining)
[2024-11-08 17:32:14,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 22 remaining)
[2024-11-08 17:32:14,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 22 remaining)
[2024-11-08 17:32:14,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 22 remaining)
[2024-11-08 17:32:14,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 22 remaining)
[2024-11-08 17:32:14,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 22 remaining)
[2024-11-08 17:32:14,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 22 remaining)
[2024-11-08 17:32:14,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 22 remaining)
[2024-11-08 17:32:14,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 22 remaining)
[2024-11-08 17:32:14,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 22 remaining)
[2024-11-08 17:32:14,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 22 remaining)
[2024-11-08 17:32:14,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 22 remaining)
[2024-11-08 17:32:14,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 22 remaining)
[2024-11-08 17:32:14,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 22 remaining)
[2024-11-08 17:32:14,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 22 remaining)
[2024-11-08 17:32:14,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 22 remaining)
[2024-11-08 17:32:14,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 22 remaining)
[2024-11-08 17:32:14,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 22 remaining)
[2024-11-08 17:32:14,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 22 remaining)
[2024-11-08 17:32:14,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 22 remaining)
[2024-11-08 17:32:14,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 22 remaining)
[2024-11-08 17:32:14,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK (0 of 22 remaining)
[2024-11-08 17:32:14,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-08 17:32:14,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:32:14,574 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-11-08 17:32:14,591 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 17:32:14,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:32:14 BoogieIcfgContainer
[2024-11-08 17:32:14,595 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 17:32:14,596 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 17:32:14,596 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 17:32:14,596 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 17:32:14,597 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:32:11" (3/4) ...
[2024-11-08 17:32:14,599 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-08 17:32:14,600 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 17:32:14,601 INFO L158 Benchmark]: Toolchain (without parser) took 4153.97ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 49.7MB in the beginning and 43.9MB in the end (delta: 5.8MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB.
[2024-11-08 17:32:14,601 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 52.4MB. Free memory is still 28.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:32:14,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 735.29ms. Allocated memory is still 79.7MB. Free memory was 49.5MB in the beginning and 49.9MB in the end (delta: -394.5kB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB.
[2024-11-08 17:32:14,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.31ms. Allocated memory is still 79.7MB. Free memory was 49.9MB in the beginning and 48.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:32:14,603 INFO L158 Benchmark]: Boogie Preprocessor took 83.89ms. Allocated memory is still 79.7MB. Free memory was 47.8MB in the beginning and 45.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 17:32:14,603 INFO L158 Benchmark]: RCFGBuilder took 613.88ms. Allocated memory is still 79.7MB. Free memory was 45.4MB in the beginning and 48.7MB in the end (delta: -3.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2024-11-08 17:32:14,603 INFO L158 Benchmark]: TraceAbstraction took 2640.62ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 48.0MB in the beginning and 44.4MB in the end (delta: 3.6MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB.
[2024-11-08 17:32:14,604 INFO L158 Benchmark]: Witness Printer took 4.67ms. Allocated memory is still 96.5MB. Free memory was 44.4MB in the beginning and 43.9MB in the end (delta: 539.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:32:14,607 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.22ms. Allocated memory is still 52.4MB. Free memory is still 28.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 735.29ms. Allocated memory is still 79.7MB. Free memory was 49.5MB in the beginning and 49.9MB in the end (delta: -394.5kB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 68.31ms. Allocated memory is still 79.7MB. Free memory was 49.9MB in the beginning and 48.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 83.89ms. Allocated memory is still 79.7MB. Free memory was 47.8MB in the beginning and 45.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 613.88ms. Allocated memory is still 79.7MB. Free memory was 45.4MB in the beginning and 48.7MB in the end (delta: -3.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 2640.62ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 48.0MB in the beginning and 44.4MB in the end (delta: 3.6MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB.
* Witness Printer took 4.67ms. Allocated memory is still 96.5MB. Free memory was 44.4MB in the beginning and 43.9MB in the end (delta: 539.8kB). There was no memory consumed. 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
- UnprovableResult [Line: 531]: Unable to prove that all allocated memory was freed
Unable to prove that all allocated memory was freed
Reason: overapproximation of memtrack at line 531.
Possible FailurePath:
[L532] int flag = __VERIFIER_nondet_int();
[L533] List p, a, t;
[L534] a = (List) malloc(sizeof(struct node))
[L535] COND FALSE !(a == 0)
VAL [a={3:0}]
[L536] p = a
VAL [a={3:0}, p={3:0}]
[L537] COND FALSE !(__VERIFIER_nondet_int())
[L548] p->h = 3
[L549] p = a
VAL [p={3:0}]
[L550] COND FALSE !(\read(flag))
[L554] EXPR p->h
[L554] COND FALSE !(p->h == 2)
[L556] EXPR p->h
[L556] COND FALSE !(p->h != 3)
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 12]: 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 2 procedures, 61 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 94 mSDsluCounter, 178 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 132 IncrementalHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 123 mSDtfsCounter, 132 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=3, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 3 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 could not prove your program: unable to determine feasibility of some traces
[2024-11-08 17:32:14,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976db376-abed-40e9-b705-4b67b1dcf72c/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
Result:
UNKNOWN: Overapproximated counterexample