./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.13.c --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
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_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/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_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.13.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b3c94ee5a796c7d1657dd8bc28dee20baad725223b7839e2e01894b8965532f9
--- 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 20:50:56,910 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:50:56,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:50:56,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:50:56,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:50:56,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:50:56,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:50:56,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:50:56,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:50:56,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:50:56,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:50:56,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:50:56,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:50:56,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:50:56,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:50:56,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:50:56,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:50:56,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:50:56,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:50:56,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:50:56,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:50:56,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:50:56,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:50:56,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:50:56,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:50:56,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:50:56,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:50:56,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:50:56,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:50:56,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:50:56,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:50:56,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:50:56,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:50:56,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:50:56,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:50:56,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:50:56,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:50:56,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:50:56,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:50:56,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:50:56,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:50:56,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2022-11-02 20:50:57,011 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:50:57,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:50:57,012 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:50:57,012 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:50:57,013 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:50:57,013 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:50:57,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:50:57,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:50:57,015 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:50:57,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:50:57,015 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2022-11-02 20:50:57,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 20:50:57,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:50:57,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:50:57,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:50:57,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:50:57,017 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true
[2022-11-02 20:50:57,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:50:57,017 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:50:57,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:50:57,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:50:57,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:50:57,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:50:57,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:50:57,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:50:57,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:50:57,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:50:57,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 20:50:57,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 20:50:57,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:50:57,021 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_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3c94ee5a796c7d1657dd8bc28dee20baad725223b7839e2e01894b8965532f9
[2022-11-02 20:50:57,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:50:57,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:50:57,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:50:57,364 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:50:57,365 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:50:57,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.13.c
[2022-11-02 20:50:57,459 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/bin/uautomizer-Dbtcem3rbc/data/112dd904e/795922b3706548709932dcc0b68a2bbf/FLAG1da993649
[2022-11-02 20:50:58,016 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:50:58,018 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.13.c
[2022-11-02 20:50:58,026 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/bin/uautomizer-Dbtcem3rbc/data/112dd904e/795922b3706548709932dcc0b68a2bbf/FLAG1da993649
[2022-11-02 20:50:58,378 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/bin/uautomizer-Dbtcem3rbc/data/112dd904e/795922b3706548709932dcc0b68a2bbf
[2022-11-02 20:50:58,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:50:58,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:50:58,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:50:58,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:50:58,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:50:58,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:50:58" (1/1) ...
[2022-11-02 20:50:58,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b909201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:58, skipping insertion in model container
[2022-11-02 20:50:58,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:50:58" (1/1) ...
[2022-11-02 20:50:58,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:50:58,422 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:50:58,636 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:50:58,641 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:50:58,670 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:50:58,682 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:50:58,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:58 WrapperNode
[2022-11-02 20:50:58,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:50:58,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:50:58,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:50:58,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:50:58,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:58" (1/1) ...
[2022-11-02 20:50:58,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:58" (1/1) ...
[2022-11-02 20:50:58,719 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24
[2022-11-02 20:50:58,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:50:58,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:50:58,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:50:58,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:50:58,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:58" (1/1) ...
[2022-11-02 20:50:58,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:58" (1/1) ...
[2022-11-02 20:50:58,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:58" (1/1) ...
[2022-11-02 20:50:58,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:58" (1/1) ...
[2022-11-02 20:50:58,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:58" (1/1) ...
[2022-11-02 20:50:58,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:58" (1/1) ...
[2022-11-02 20:50:58,746 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:58" (1/1) ...
[2022-11-02 20:50:58,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:58" (1/1) ...
[2022-11-02 20:50:58,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:50:58,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:50:58,751 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:50:58,751 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:50:58,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:58" (1/1) ...
[2022-11-02 20:50:58,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:50:58,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:50:58,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:50:58,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:50:58,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:50:58,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:50:58,908 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:50:58,910 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:50:59,049 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:50:59,056 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:50:59,056 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-02 20:50:59,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:50:59 BoogieIcfgContainer
[2022-11-02 20:50:59,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:50:59,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:50:59,060 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:50:59,064 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:50:59,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:50:58" (1/3) ...
[2022-11-02 20:50:59,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1595d45f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:50:59, skipping insertion in model container
[2022-11-02 20:50:59,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:58" (2/3) ...
[2022-11-02 20:50:59,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1595d45f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:50:59, skipping insertion in model container
[2022-11-02 20:50:59,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:50:59" (3/3) ...
[2022-11-02 20:50:59,067 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.13.c
[2022-11-02 20:50:59,086 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:50:59,086 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations.
[2022-11-02 20:50:59,132 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:50:59,139 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@2f930e72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:50:59,140 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2022-11-02 20:50:59,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 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 20:50:59,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2022-11-02 20:50:59,150 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:50:59,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1]
[2022-11-02 20:50:59,152 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2022-11-02 20:50:59,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:50:59,158 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times
[2022-11-02 20:50:59,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:50:59,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922396242]
[2022-11-02 20:50:59,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:50:59,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:50:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:50:59,255 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:50:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:50:59,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:50:59,278 INFO L359 BasicCegarLoop]: Counterexample is feasible
[2022-11-02 20:50:59,279 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining)
[2022-11-02 20:50:59,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining)
[2022-11-02 20:50:59,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining)
[2022-11-02 20:50:59,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining)
[2022-11-02 20:50:59,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining)
[2022-11-02 20:50:59,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining)
[2022-11-02 20:50:59,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 20:50:59,288 INFO L444 BasicCegarLoop]: Path program histogram: [1]
[2022-11-02 20:50:59,293 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:50:59,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:50:59 BoogieIcfgContainer
[2022-11-02 20:50:59,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:50:59,310 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:50:59,310 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:50:59,310 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 20:50:59,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:50:59" (3/4) ...
[2022-11-02 20:50:59,313 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2022-11-02 20:50:59,342 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/bin/uautomizer-Dbtcem3rbc/witness.graphml
[2022-11-02 20:50:59,342 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:50:59,344 INFO L158 Benchmark]: Toolchain (without parser) took 957.56ms. Allocated memory is still 109.1MB. Free memory was 73.5MB in the beginning and 59.0MB in the end (delta: 14.5MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB.
[2022-11-02 20:50:59,344 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 81.8MB. Free memory was 51.6MB in the beginning and 51.6MB in the end (delta: 25.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:50:59,345 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.50ms. Allocated memory is still 109.1MB. Free memory was 73.2MB in the beginning and 85.2MB in the end (delta: -12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 20:50:59,345 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.22ms. Allocated memory is still 109.1MB. Free memory was 85.2MB in the beginning and 83.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:50:59,346 INFO L158 Benchmark]: Boogie Preprocessor took 27.56ms. Allocated memory is still 109.1MB. Free memory was 83.7MB in the beginning and 83.1MB in the end (delta: 603.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:50:59,346 INFO L158 Benchmark]: RCFGBuilder took 308.20ms. Allocated memory is still 109.1MB. Free memory was 83.1MB in the beginning and 73.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 20:50:59,347 INFO L158 Benchmark]: TraceAbstraction took 248.89ms. Allocated memory is still 109.1MB. Free memory was 73.2MB in the beginning and 60.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2022-11-02 20:50:59,347 INFO L158 Benchmark]: Witness Printer took 32.94ms. Allocated memory is still 109.1MB. Free memory was 60.6MB in the beginning and 59.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:50:59,350 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32ms. Allocated memory is still 81.8MB. Free memory was 51.6MB in the beginning and 51.6MB in the end (delta: 25.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 293.50ms. Allocated memory is still 109.1MB. Free memory was 73.2MB in the beginning and 85.2MB in the end (delta: -12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 35.22ms. Allocated memory is still 109.1MB. Free memory was 85.2MB in the beginning and 83.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 27.56ms. Allocated memory is still 109.1MB. Free memory was 83.7MB in the beginning and 83.1MB in the end (delta: 603.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 308.20ms. Allocated memory is still 109.1MB. Free memory was 83.1MB in the beginning and 73.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 248.89ms. Allocated memory is still 109.1MB. Free memory was 73.2MB in the beginning and 60.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Witness Printer took 32.94ms. Allocated memory is still 109.1MB. Free memory was 60.6MB in the beginning and 59.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- CounterExampleResult [Line: 26]: integer overflow possible
integer overflow possible
We found a FailurePath:
[L23] int x, y;
[L24] x = __VERIFIER_nondet_int()
[L25] y = __VERIFIER_nondet_int()
[L26] x - y
VAL [x=0, y=-2147483648]
- UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- UnprovableResult [Line: 28]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- UnprovableResult [Line: 28]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 proved your program to be incorrect!
[2022-11-02 20:50:59,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d2e40d-f4b0-459c-a3c0-028a2a5ec6e0/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
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(OVERFLOW)