./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memset3.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 5e519f3a
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_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memset3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --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 0e16460170daade69818450e1395d982497f59eca845b3ed1031565545c18793
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-5e519f3
[2022-11-02 20:52:25,891 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:52:25,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:52:25,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:52:25,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:52:25,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:52:25,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:52:25,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:52:25,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:52:25,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:52:25,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:52:25,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:52:25,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:52:25,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:52:25,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:52:25,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:52:25,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:52:25,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:52:25,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:52:25,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:52:25,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:52:25,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:52:25,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:52:25,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:52:26,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:52:26,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:52:26,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:52:26,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:52:26,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:52:26,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:52:26,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:52:26,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:52:26,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:52:26,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:52:26,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:52:26,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:52:26,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:52:26,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:52:26,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:52:26,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:52:26,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:52:26,014 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2022-11-02 20:52:26,054 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:52:26,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:52:26,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:52:26,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:52:26,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:52:26,056 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:52:26,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:52:26,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:52:26,058 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:52:26,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:52:26,059 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 20:52:26,059 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2022-11-02 20:52:26,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 20:52:26,060 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 20:52:26,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:52:26,060 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2022-11-02 20:52:26,060 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2022-11-02 20:52:26,061 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2022-11-02 20:52:26,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:52:26,061 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2022-11-02 20:52:26,061 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 20:52:26,061 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:52:26,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:52:26,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:52:26,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:52:26,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:52:26,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:52:26,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:52:26,063 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 20:52:26,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 20:52:26,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
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_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e16460170daade69818450e1395d982497f59eca845b3ed1031565545c18793
[2022-11-02 20:52:26,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:52:26,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:52:26,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:52:26,415 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:52:26,416 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:52:26,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-memsafety/memset3.c
[2022-11-02 20:52:26,513 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc/data/f98e055a6/b3c812e47aa24228ade7764e7a8e0c14/FLAGeec155049
[2022-11-02 20:52:27,007 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:52:27,008 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/sv-benchmarks/c/ldv-memsafety/memset3.c
[2022-11-02 20:52:27,032 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc/data/f98e055a6/b3c812e47aa24228ade7764e7a8e0c14/FLAGeec155049
[2022-11-02 20:52:27,376 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc/data/f98e055a6/b3c812e47aa24228ade7764e7a8e0c14
[2022-11-02 20:52:27,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:52:27,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:52:27,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:52:27,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:52:27,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:52:27,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:52:27" (1/1) ...
[2022-11-02 20:52:27,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea58347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:27, skipping insertion in model container
[2022-11-02 20:52:27,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:52:27" (1/1) ...
[2022-11-02 20:52:27,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:52:27,420 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:52:27,661 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:52:27,674 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:52:27,690 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:52:27,709 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:52:27,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:27 WrapperNode
[2022-11-02 20:52:27,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:52:27,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:52:27,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:52:27,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:52:27,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:27" (1/1) ...
[2022-11-02 20:52:27,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:27" (1/1) ...
[2022-11-02 20:52:27,757 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19
[2022-11-02 20:52:27,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:52:27,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:52:27,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:52:27,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:52:27,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:27" (1/1) ...
[2022-11-02 20:52:27,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:27" (1/1) ...
[2022-11-02 20:52:27,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:27" (1/1) ...
[2022-11-02 20:52:27,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:27" (1/1) ...
[2022-11-02 20:52:27,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:27" (1/1) ...
[2022-11-02 20:52:27,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:27" (1/1) ...
[2022-11-02 20:52:27,784 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:27" (1/1) ...
[2022-11-02 20:52:27,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:27" (1/1) ...
[2022-11-02 20:52:27,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:52:27,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:52:27,795 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:52:27,795 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:52:27,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:27" (1/1) ...
[2022-11-02 20:52:27,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:52:27,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:52:27,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:52:27,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:52:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:52:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:52:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-02 20:52:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-02 20:52:27,965 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:52:27,967 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:52:28,160 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:52:28,167 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:52:28,168 INFO L300 CfgBuilder]: Removed 0 assume(true) statements.
[2022-11-02 20:52:28,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:52:28 BoogieIcfgContainer
[2022-11-02 20:52:28,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:52:28,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:52:28,173 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:52:28,177 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:52:28,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:52:27" (1/3) ...
[2022-11-02 20:52:28,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275a6062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:52:28, skipping insertion in model container
[2022-11-02 20:52:28,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:27" (2/3) ...
[2022-11-02 20:52:28,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275a6062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:52:28, skipping insertion in model container
[2022-11-02 20:52:28,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:52:28" (3/3) ...
[2022-11-02 20:52:28,181 INFO L112 eAbstractionObserver]: Analyzing ICFG memset3.c
[2022-11-02 20:52:28,203 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:52:28,203 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2022-11-02 20:52:28,306 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:52:28,314 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@5a8d2d33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:52:28,331 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2022-11-02 20:52:28,335 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 8 states have (on average 1.5) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:52:28,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2022-11-02 20:52:28,342 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:52:28,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1]
[2022-11-02 20:52:28,359 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] ===
[2022-11-02 20:52:28,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:52:28,365 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times
[2022-11-02 20:52:28,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:52:28,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608891957]
[2022-11-02 20:52:28,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:52:28,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:52:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:52:28,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:52:28,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:52:28,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608891957]
[2022-11-02 20:52:28,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608891957] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:52:28,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:52:28,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 20:52:28,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137386228]
[2022-11-02 20:52:28,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:52:28,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:52:28,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:52:28,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:52:28,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:52:28,789 INFO L87 Difference]: Start difference. First operand has 12 states, 8 states have (on average 1.5) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:52:28,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:52:28,847 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions.
[2022-11-02 20:52:28,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-11-02 20:52:28,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3
[2022-11-02 20:52:28,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:52:28,859 INFO L225 Difference]: With dead ends: 11
[2022-11-02 20:52:28,860 INFO L226 Difference]: Without dead ends: 9
[2022-11-02 20:52:28,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:52:28,870 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:52:28,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 8 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:52:28,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2022-11-02 20:52:28,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2022-11-02 20:52:28,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:52:28,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2022-11-02 20:52:28,904 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 3
[2022-11-02 20:52:28,904 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:52:28,905 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2022-11-02 20:52:28,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:52:28,905 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2022-11-02 20:52:28,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2022-11-02 20:52:28,906 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:52:28,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2022-11-02 20:52:28,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 20:52:28,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] ===
[2022-11-02 20:52:28,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:52:28,908 INFO L85 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times
[2022-11-02 20:52:28,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:52:28,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829706431]
[2022-11-02 20:52:28,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:52:28,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:52:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:52:29,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:52:29,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:52:29,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829706431]
[2022-11-02 20:52:29,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829706431] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:52:29,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:52:29,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 20:52:29,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465795273]
[2022-11-02 20:52:29,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:52:29,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:52:29,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:52:29,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:52:29,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:52:29,133 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:52:29,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:52:29,153 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions.
[2022-11-02 20:52:29,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-11-02 20:52:29,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4
[2022-11-02 20:52:29,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:52:29,155 INFO L225 Difference]: With dead ends: 8
[2022-11-02 20:52:29,155 INFO L226 Difference]: Without dead ends: 8
[2022-11-02 20:52:29,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:52:29,157 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:52:29,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:52:29,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states.
[2022-11-02 20:52:29,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8.
[2022-11-02 20:52:29,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:52:29,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions.
[2022-11-02 20:52:29,161 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4
[2022-11-02 20:52:29,161 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:52:29,162 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions.
[2022-11-02 20:52:29,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:52:29,162 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions.
[2022-11-02 20:52:29,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 20:52:29,163 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:52:29,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:52:29,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-02 20:52:29,164 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] ===
[2022-11-02 20:52:29,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:52:29,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1803953449, now seen corresponding path program 1 times
[2022-11-02 20:52:29,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:52:29,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017497598]
[2022-11-02 20:52:29,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:52:29,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:52:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:52:29,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:52:29,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:52:29,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017497598]
[2022-11-02 20:52:29,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017497598] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:52:29,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:52:29,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:52:29,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095969264]
[2022-11-02 20:52:29,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:52:29,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 20:52:29,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:52:29,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 20:52:29,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:52:29,373 INFO L87 Difference]: Start difference. First operand 8 states and 8 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)
[2022-11-02 20:52:29,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:52:29,387 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions.
[2022-11-02 20:52:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-11-02 20:52:29,388 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
[2022-11-02 20:52:29,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:52:29,389 INFO L225 Difference]: With dead ends: 7
[2022-11-02 20:52:29,389 INFO L226 Difference]: Without dead ends: 0
[2022-11-02 20:52:29,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:52:29,391 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:52:29,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:52:29,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-11-02 20:52:29,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-11-02 20:52:29,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:52:29,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-11-02 20:52:29,394 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7
[2022-11-02 20:52:29,394 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:52:29,395 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-11-02 20:52:29,395 INFO L496 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)
[2022-11-02 20:52:29,395 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-11-02 20:52:29,396 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-11-02 20:52:29,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE (2 of 3 remaining)
[2022-11-02 20:52:29,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (1 of 3 remaining)
[2022-11-02 20:52:29,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (0 of 3 remaining)
[2022-11-02 20:52:29,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-11-02 20:52:29,404 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2022-11-02 20:52:29,406 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:52:29,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:52:29 BoogieIcfgContainer
[2022-11-02 20:52:29,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:52:29,416 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:52:29,416 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:52:29,417 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 20:52:29,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:52:28" (3/4) ...
[2022-11-02 20:52:29,423 INFO L137 WitnessPrinter]: Generating witness for correct program
[2022-11-02 20:52:29,434 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges
[2022-11-02 20:52:29,434 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges
[2022-11-02 20:52:29,435 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2022-11-02 20:52:29,435 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2022-11-02 20:52:29,486 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc/witness.graphml
[2022-11-02 20:52:29,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:52:29,488 INFO L158 Benchmark]: Toolchain (without parser) took 2105.59ms. Allocated memory is still 134.2MB. Free memory was 96.0MB in the beginning and 53.2MB in the end (delta: 42.8MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB.
[2022-11-02 20:52:29,488 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 134.2MB. Free memory was 104.6MB in the beginning and 104.6MB in the end (delta: 26.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:52:29,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.65ms. Allocated memory is still 134.2MB. Free memory was 96.0MB in the beginning and 109.0MB in the end (delta: -13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 20:52:29,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.43ms. Allocated memory is still 134.2MB. Free memory was 109.0MB in the beginning and 107.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:52:29,491 INFO L158 Benchmark]: Boogie Preprocessor took 34.87ms. Allocated memory is still 134.2MB. Free memory was 107.7MB in the beginning and 106.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:52:29,491 INFO L158 Benchmark]: RCFGBuilder took 376.03ms. Allocated memory is still 134.2MB. Free memory was 106.6MB in the beginning and 96.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 20:52:29,492 INFO L158 Benchmark]: TraceAbstraction took 1240.11ms. Allocated memory is still 134.2MB. Free memory was 95.7MB in the beginning and 55.3MB in the end (delta: 40.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB.
[2022-11-02 20:52:29,497 INFO L158 Benchmark]: Witness Printer took 70.77ms. Allocated memory is still 134.2MB. Free memory was 55.3MB in the beginning and 53.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:52:29,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.44ms. Allocated memory is still 134.2MB. Free memory was 104.6MB in the beginning and 104.6MB in the end (delta: 26.1kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 322.65ms. Allocated memory is still 134.2MB. Free memory was 96.0MB in the beginning and 109.0MB in the end (delta: -13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 46.43ms. Allocated memory is still 134.2MB. Free memory was 109.0MB in the beginning and 107.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 34.87ms. Allocated memory is still 134.2MB. Free memory was 107.7MB in the beginning and 106.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 376.03ms. Allocated memory is still 134.2MB. Free memory was 106.6MB in the beginning and 96.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 1240.11ms. Allocated memory is still 134.2MB. Free memory was 95.7MB in the beginning and 55.3MB in the end (delta: 40.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB.
* Witness Printer took 70.77ms. Allocated memory is still 134.2MB. Free memory was 55.3MB in the beginning and 53.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 25]: all allocated memory was freed
For all program executions holds that all allocated memory was freed at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 12 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 10, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 53 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
- AllSpecificationsHoldResult: All specifications hold
3 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2022-11-02 20:52:29,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49cb32b9-88f3-462e-98a6-50fd053b2860/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:
TRUE