./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_22_bad.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 0e0057cc
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fe6c35faf1873d5068015ca1d36acd182a26853a6632c16e7310045d06d3386e
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-12-02 13:38:58,851 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-12-02 13:38:58,914 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf
[2023-12-02 13:38:58,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-12-02 13:38:58,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-02 13:38:58,941 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-02 13:38:58,941 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-02 13:38:58,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-02 13:38:58,942 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-02 13:38:58,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-02 13:38:58,943 INFO L153 SettingsManager]: * User list type=DISABLED
[2023-12-02 13:38:58,944 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2023-12-02 13:38:58,944 INFO L153 SettingsManager]: * Explicit value domain=true
[2023-12-02 13:38:58,945 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2023-12-02 13:38:58,945 INFO L153 SettingsManager]: * Octagon Domain=false
[2023-12-02 13:38:58,946 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain
[2023-12-02 13:38:58,946 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true
[2023-12-02 13:38:58,947 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true
[2023-12-02 13:38:58,947 INFO L153 SettingsManager]: * Interval Domain=false
[2023-12-02 13:38:58,948 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults:
[2023-12-02 13:38:58,948 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer
[2023-12-02 13:38:58,949 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC
[2023-12-02 13:38:58,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-02 13:38:58,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-12-02 13:38:58,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-12-02 13:38:58,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-12-02 13:38:58,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-12-02 13:38:58,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-02 13:38:58,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-12-02 13:38:58,953 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-12-02 13:38:58,953 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-12-02 13:38:58,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-12-02 13:38:58,953 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-12-02 13:38:58,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-02 13:38:58,954 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-12-02 13:38:58,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-12-02 13:38:58,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-12-02 13:38:58,954 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-02 13:38:58,954 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-12-02 13:38:58,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-02 13:38:58,955 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN
[2023-12-02 13:38:58,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-02 13:38:58,955 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-02 13:38:58,955 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-02 13:38:58,956 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE
[2023-12-02 13:38:58,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-02 13:38:58,956 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES
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_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe6c35faf1873d5068015ca1d36acd182a26853a6632c16e7310045d06d3386e
[2023-12-02 13:38:59,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-02 13:38:59,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-02 13:38:59,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-02 13:38:59,209 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-12-02 13:38:59,209 INFO L274 PluginConnector]: CDTParser initialized
[2023-12-02 13:38:59,210 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_22_bad.i
[2023-12-02 13:39:02,174 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-12-02 13:39:02,525 INFO L384 CDTParser]: Found 1 translation units.
[2023-12-02 13:39:02,526 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_22_bad.i
[2023-12-02 13:39:02,555 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/data/7b668b3e9/cb1a07909d1a454aa1d770654112c154/FLAGb93dc2959
[2023-12-02 13:39:02,572 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/data/7b668b3e9/cb1a07909d1a454aa1d770654112c154
[2023-12-02 13:39:02,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-02 13:39:02,576 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-12-02 13:39:02,578 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-02 13:39:02,578 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-02 13:39:02,584 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-02 13:39:02,585 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:39:02" (1/1) ...
[2023-12-02 13:39:02,586 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ee8bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:02, skipping insertion in model container
[2023-12-02 13:39:02,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:39:02" (1/1) ...
[2023-12-02 13:39:02,652 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-12-02 13:39:03,594 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-02 13:39:03,608 INFO L202 MainTranslator]: Completed pre-run
[2023-12-02 13:39:03,705 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-02 13:39:03,916 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-12-02 13:39:03,916 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-12-02 13:39:03,916 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-12-02 13:39:03,917 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-12-02 13:39:03,926 INFO L206 MainTranslator]: Completed translation
[2023-12-02 13:39:03,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:03 WrapperNode
[2023-12-02 13:39:03,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-02 13:39:03,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-02 13:39:03,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-02 13:39:03,928 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-02 13:39:03,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:03" (1/1) ...
[2023-12-02 13:39:03,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:03" (1/1) ...
[2023-12-02 13:39:03,996 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 44
[2023-12-02 13:39:03,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-02 13:39:03,997 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-02 13:39:03,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-02 13:39:03,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-12-02 13:39:04,009 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:03" (1/1) ...
[2023-12-02 13:39:04,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:03" (1/1) ...
[2023-12-02 13:39:04,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:03" (1/1) ...
[2023-12-02 13:39:04,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:03" (1/1) ...
[2023-12-02 13:39:04,021 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:03" (1/1) ...
[2023-12-02 13:39:04,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:03" (1/1) ...
[2023-12-02 13:39:04,025 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:03" (1/1) ...
[2023-12-02 13:39:04,026 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:03" (1/1) ...
[2023-12-02 13:39:04,030 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-02 13:39:04,031 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-02 13:39:04,031 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-12-02 13:39:04,031 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-12-02 13:39:04,032 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:03" (1/1) ...
[2023-12-02 13:39:04,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-12-02 13:39:04,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/z3
[2023-12-02 13:39:04,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-12-02 13:39:04,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-12-02 13:39:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-12-02 13:39:04,113 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-12-02 13:39:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-02 13:39:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-02 13:39:04,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-02 13:39:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-12-02 13:39:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-12-02 13:39:04,291 INFO L241 CfgBuilder]: Building ICFG
[2023-12-02 13:39:04,294 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-02 13:39:04,406 INFO L282 CfgBuilder]: Performing block encoding
[2023-12-02 13:39:04,459 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-02 13:39:04,460 INFO L309 CfgBuilder]: Removed 0 assume(true) statements.
[2023-12-02 13:39:04,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:39:04 BoogieIcfgContainer
[2023-12-02 13:39:04,462 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-02 13:39:04,465 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-02 13:39:04,466 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-12-02 13:39:04,470 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-12-02 13:39:04,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:39:02" (1/3) ...
[2023-12-02 13:39:04,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e74824f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:39:04, skipping insertion in model container
[2023-12-02 13:39:04,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:03" (2/3) ...
[2023-12-02 13:39:04,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e74824f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:39:04, skipping insertion in model container
[2023-12-02 13:39:04,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:39:04" (3/3) ...
[2023-12-02 13:39:04,474 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_sub_22_bad.i
[2023-12-02 13:39:04,499 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-02 13:39:04,499 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-12-02 13:39:04,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-02 13:39:04,571 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4b42e54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-02 13:39:04,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-12-02 13:39:04,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-12-02 13:39:04,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-12-02 13:39:04,586 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-02 13:39:04,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-12-02 13:39:04,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-12-02 13:39:04,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 13:39:04,595 INFO L85 PathProgramCache]: Analyzing trace with hash 2094633659, now seen corresponding path program 1 times
[2023-12-02 13:39:04,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-12-02 13:39:04,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725859779]
[2023-12-02 13:39:04,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 13:39:04,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-02 13:39:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-12-02 13:39:04,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-12-02 13:39:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-12-02 13:39:04,817 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2023-12-02 13:39:04,820 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-12-02 13:39:04,821 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-12-02 13:39:04,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-12-02 13:39:04,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-02 13:39:04,830 INFO L445 BasicCegarLoop]: Path program histogram: [1]
[2023-12-02 13:39:04,835 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-12-02 13:39:04,853 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet99
[2023-12-02 13:39:04,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:39:04 BoogieIcfgContainer
[2023-12-02 13:39:04,863 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-02 13:39:04,864 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-12-02 13:39:04,864 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-12-02 13:39:04,864 INFO L274 PluginConnector]: Witness Printer initialized
[2023-12-02 13:39:04,865 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:39:04" (3/4) ...
[2023-12-02 13:39:04,867 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-12-02 13:39:04,868 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-12-02 13:39:04,870 INFO L158 Benchmark]: Toolchain (without parser) took 2293.13ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 92.6MB in the beginning and 98.7MB in the end (delta: -6.1MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB.
[2023-12-02 13:39:04,871 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 138.4MB. Free memory was 107.4MB in the beginning and 107.2MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-12-02 13:39:04,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1348.91ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 92.1MB in the beginning and 133.2MB in the end (delta: -41.1MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB.
[2023-12-02 13:39:04,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.12ms. Allocated memory is still 186.6MB. Free memory was 133.2MB in the beginning and 130.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-12-02 13:39:04,873 INFO L158 Benchmark]: Boogie Preprocessor took 32.74ms. Allocated memory is still 186.6MB. Free memory was 130.2MB in the beginning and 129.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-12-02 13:39:04,874 INFO L158 Benchmark]: RCFGBuilder took 430.98ms. Allocated memory is still 186.6MB. Free memory was 129.0MB in the beginning and 115.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2023-12-02 13:39:04,875 INFO L158 Benchmark]: TraceAbstraction took 397.51ms. Allocated memory is still 186.6MB. Free memory was 114.4MB in the beginning and 99.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-12-02 13:39:04,875 INFO L158 Benchmark]: Witness Printer took 5.04ms. Allocated memory is still 186.6MB. Free memory was 99.7MB in the beginning and 98.7MB in the end (delta: 993.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-12-02 13:39:04,879 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.19ms. Allocated memory is still 138.4MB. Free memory was 107.4MB in the beginning and 107.2MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1348.91ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 92.1MB in the beginning and 133.2MB in the end (delta: -41.1MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 69.12ms. Allocated memory is still 186.6MB. Free memory was 133.2MB in the beginning and 130.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 32.74ms. Allocated memory is still 186.6MB. Free memory was 130.2MB in the beginning and 129.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 430.98ms. Allocated memory is still 186.6MB. Free memory was 129.0MB in the beginning and 115.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 397.51ms. Allocated memory is still 186.6MB. Free memory was 114.4MB in the beginning and 99.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* Witness Printer took 5.04ms. Allocated memory is still 186.6MB. Free memory was 99.7MB in the beginning and 98.7MB in the end (delta: 993.5kB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: unknown boogie variable #t~nondet99
- GenericResult: Unfinished Backtranslation
The program execution was not completely translated back.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of large string literal at line 1561.
Possible FailurePath:
[L1522] const int GLOBAL_CONST_TRUE = 1;
[L1523] const int GLOBAL_CONST_FALSE = 0;
[L1524] const int GLOBAL_CONST_FIVE = 5;
[L1525] int globalTrue = 1;
[L1526] int globalFalse = 0;
[L1527] int globalFive = 5;
[L1546] int globalArgc = 0;
[L1547] char** globalArgv = ((void *)0);
[L1548] int CWE191_Integer_Underflow__int_min_sub_22_badGlobal = 0;
[L1561] CALL printLine("Calling bad()...")
VAL [CWE191_Integer_Underflow__int_min_sub_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}]
[L1414] COND TRUE line != ((void *)0)
[L1561] RET printLine("Calling bad()...")
VAL [CWE191_Integer_Underflow__int_min_sub_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741825, argc=1073741825, argv={1073741827:1073741826}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1562] CALL CWE191_Integer_Underflow__int_min_sub_22_bad()
[L1552] int data;
[L1553] data = 0
[L1554] data = (-0x7fffffff - 1)
[L1555] CWE191_Integer_Underflow__int_min_sub_22_badGlobal = 1
[L1556] CALL CWE191_Integer_Underflow__int_min_sub_22_badSink(data)
[L1569] COND TRUE \read(CWE191_Integer_Underflow__int_min_sub_22_badGlobal)
VAL [CWE191_Integer_Underflow__int_min_sub_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1572] data - 1
VAL [CWE191_Integer_Underflow__int_min_sub_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1572]: 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 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=14occurred 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, 7 NumberOfCodeBlocks, 7 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 could not prove your program: unable to determine feasibility of some traces
[2023-12-02 13:39:04,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/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
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fe6c35faf1873d5068015ca1d36acd182a26853a6632c16e7310045d06d3386e
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-12-02 13:39:07,220 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-12-02 13:39:07,318 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf
[2023-12-02 13:39:07,326 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-12-02 13:39:07,327 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-02 13:39:07,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-02 13:39:07,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-02 13:39:07,363 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-02 13:39:07,364 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-02 13:39:07,365 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-02 13:39:07,365 INFO L153 SettingsManager]: * User list type=DISABLED
[2023-12-02 13:39:07,366 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2023-12-02 13:39:07,367 INFO L153 SettingsManager]: * Explicit value domain=true
[2023-12-02 13:39:07,367 INFO L153 SettingsManager]: * Octagon Domain=false
[2023-12-02 13:39:07,368 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain
[2023-12-02 13:39:07,369 INFO L153 SettingsManager]: * Interval Domain=false
[2023-12-02 13:39:07,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-02 13:39:07,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-12-02 13:39:07,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-12-02 13:39:07,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-12-02 13:39:07,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-02 13:39:07,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-12-02 13:39:07,373 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-12-02 13:39:07,374 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-12-02 13:39:07,374 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-12-02 13:39:07,375 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-02 13:39:07,375 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-12-02 13:39:07,376 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-12-02 13:39:07,376 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-12-02 13:39:07,377 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-02 13:39:07,378 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-12-02 13:39:07,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-12-02 13:39:07,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-12-02 13:39:07,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-12-02 13:39:07,379 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-02 13:39:07,380 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-12-02 13:39:07,380 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-02 13:39:07,380 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS
[2023-12-02 13:39:07,380 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-02 13:39:07,381 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-02 13:39:07,381 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-02 13:39:07,381 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE
[2023-12-02 13:39:07,382 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-02 13:39:07,382 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
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_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe6c35faf1873d5068015ca1d36acd182a26853a6632c16e7310045d06d3386e
[2023-12-02 13:39:07,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-02 13:39:07,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-02 13:39:07,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-02 13:39:07,785 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-12-02 13:39:07,786 INFO L274 PluginConnector]: CDTParser initialized
[2023-12-02 13:39:07,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_22_bad.i
[2023-12-02 13:39:10,847 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-12-02 13:39:11,198 INFO L384 CDTParser]: Found 1 translation units.
[2023-12-02 13:39:11,199 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_22_bad.i
[2023-12-02 13:39:11,219 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/data/9d91278d0/f8720a4a8cf34adb82ef3d8449f0ca36/FLAG7fe7c201e
[2023-12-02 13:39:11,233 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/data/9d91278d0/f8720a4a8cf34adb82ef3d8449f0ca36
[2023-12-02 13:39:11,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-02 13:39:11,237 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-12-02 13:39:11,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-02 13:39:11,239 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-02 13:39:11,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-02 13:39:11,244 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:39:11" (1/1) ...
[2023-12-02 13:39:11,245 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79fbecb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:11, skipping insertion in model container
[2023-12-02 13:39:11,246 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:39:11" (1/1) ...
[2023-12-02 13:39:11,299 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-12-02 13:39:12,214 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-02 13:39:12,231 INFO L202 MainTranslator]: Completed pre-run
[2023-12-02 13:39:12,328 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-02 13:39:12,429 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-12-02 13:39:12,429 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler.
[2023-12-02 13:39:12,429 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler.
[2023-12-02 13:39:12,429 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler.
[2023-12-02 13:39:12,436 INFO L206 MainTranslator]: Completed translation
[2023-12-02 13:39:12,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:12 WrapperNode
[2023-12-02 13:39:12,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-02 13:39:12,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-02 13:39:12,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-02 13:39:12,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-02 13:39:12,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:12" (1/1) ...
[2023-12-02 13:39:12,478 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:12" (1/1) ...
[2023-12-02 13:39:12,505 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 44
[2023-12-02 13:39:12,505 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-02 13:39:12,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-02 13:39:12,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-02 13:39:12,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-12-02 13:39:12,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:12" (1/1) ...
[2023-12-02 13:39:12,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:12" (1/1) ...
[2023-12-02 13:39:12,520 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:12" (1/1) ...
[2023-12-02 13:39:12,520 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:12" (1/1) ...
[2023-12-02 13:39:12,532 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:12" (1/1) ...
[2023-12-02 13:39:12,534 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:12" (1/1) ...
[2023-12-02 13:39:12,538 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:12" (1/1) ...
[2023-12-02 13:39:12,540 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:12" (1/1) ...
[2023-12-02 13:39:12,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-02 13:39:12,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-02 13:39:12,547 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-12-02 13:39:12,547 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-12-02 13:39:12,548 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:12" (1/1) ...
[2023-12-02 13:39:12,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-12-02 13:39:12,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/z3
[2023-12-02 13:39:12,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-12-02 13:39:12,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-12-02 13:39:12,639 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2023-12-02 13:39:12,639 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2023-12-02 13:39:12,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-12-02 13:39:12,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-02 13:39:12,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-02 13:39:12,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-02 13:39:12,640 INFO L130 BoogieDeclarations]: Found specification of procedure time
[2023-12-02 13:39:12,811 INFO L241 CfgBuilder]: Building ICFG
[2023-12-02 13:39:12,814 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-02 13:39:12,946 INFO L282 CfgBuilder]: Performing block encoding
[2023-12-02 13:39:12,989 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-02 13:39:12,989 INFO L309 CfgBuilder]: Removed 0 assume(true) statements.
[2023-12-02 13:39:12,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:39:12 BoogieIcfgContainer
[2023-12-02 13:39:12,990 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-02 13:39:12,993 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-02 13:39:12,993 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-12-02 13:39:12,997 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-12-02 13:39:12,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:39:11" (1/3) ...
[2023-12-02 13:39:12,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5337f4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:39:12, skipping insertion in model container
[2023-12-02 13:39:12,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:12" (2/3) ...
[2023-12-02 13:39:12,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5337f4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:39:12, skipping insertion in model container
[2023-12-02 13:39:12,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:39:12" (3/3) ...
[2023-12-02 13:39:13,000 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_sub_22_bad.i
[2023-12-02 13:39:13,024 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-02 13:39:13,024 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-12-02 13:39:13,082 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-02 13:39:13,090 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@23d15197, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-02 13:39:13,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-12-02 13:39:13,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-12-02 13:39:13,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2023-12-02 13:39:13,105 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-02 13:39:13,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-02 13:39:13,106 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-12-02 13:39:13,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-02 13:39:13,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1611236851, now seen corresponding path program 1 times
[2023-12-02 13:39:13,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS
[2023-12-02 13:39:13,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189999171]
[2023-12-02 13:39:13,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-02 13:39:13,130 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-02 13:39:13,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/mathsat
[2023-12-02 13:39:13,132 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-02 13:39:13,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-02 13:39:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-12-02 13:39:13,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-12-02 13:39:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-12-02 13:39:13,366 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace
[2023-12-02 13:39:13,368 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-12-02 13:39:13,370 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-12-02 13:39:13,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-12-02 13:39:13,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-02 13:39:13,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-02 13:39:13,580 INFO L445 BasicCegarLoop]: Path program histogram: [1]
[2023-12-02 13:39:13,585 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-12-02 13:39:13,611 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet97
[2023-12-02 13:39:13,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:39:13 BoogieIcfgContainer
[2023-12-02 13:39:13,622 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-02 13:39:13,622 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-12-02 13:39:13,622 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-12-02 13:39:13,623 INFO L274 PluginConnector]: Witness Printer initialized
[2023-12-02 13:39:13,623 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:39:12" (3/4) ...
[2023-12-02 13:39:13,626 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-12-02 13:39:13,627 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-12-02 13:39:13,629 INFO L158 Benchmark]: Toolchain (without parser) took 2390.93ms. Allocated memory is still 113.2MB. Free memory was 86.2MB in the beginning and 56.4MB in the end (delta: 29.8MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB.
[2023-12-02 13:39:13,629 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 60.8MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-12-02 13:39:13,630 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1198.07ms. Allocated memory is still 113.2MB. Free memory was 85.8MB in the beginning and 43.9MB in the end (delta: 41.9MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB.
[2023-12-02 13:39:13,631 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.66ms. Allocated memory is still 113.2MB. Free memory was 43.9MB in the beginning and 40.5MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-12-02 13:39:13,632 INFO L158 Benchmark]: Boogie Preprocessor took 40.14ms. Allocated memory is still 113.2MB. Free memory was 40.5MB in the beginning and 39.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-12-02 13:39:13,632 INFO L158 Benchmark]: RCFGBuilder took 442.70ms. Allocated memory is still 113.2MB. Free memory was 38.4MB in the beginning and 72.7MB in the end (delta: -34.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2023-12-02 13:39:13,633 INFO L158 Benchmark]: TraceAbstraction took 628.76ms. Allocated memory is still 113.2MB. Free memory was 72.0MB in the beginning and 56.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-12-02 13:39:13,634 INFO L158 Benchmark]: Witness Printer took 5.09ms. Allocated memory is still 113.2MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-12-02 13:39:13,638 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.23ms. Allocated memory is still 60.8MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1198.07ms. Allocated memory is still 113.2MB. Free memory was 85.8MB in the beginning and 43.9MB in the end (delta: 41.9MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 67.66ms. Allocated memory is still 113.2MB. Free memory was 43.9MB in the beginning and 40.5MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 40.14ms. Allocated memory is still 113.2MB. Free memory was 40.5MB in the beginning and 39.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 442.70ms. Allocated memory is still 113.2MB. Free memory was 38.4MB in the beginning and 72.7MB in the end (delta: -34.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
* TraceAbstraction took 628.76ms. Allocated memory is still 113.2MB. Free memory was 72.0MB in the beginning and 56.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* Witness Printer took 5.09ms. Allocated memory is still 113.2MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: unknown boogie variable #t~nondet97
- GenericResult: Unfinished Backtranslation
The program execution was not completely translated back.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of large string literal at line 1561.
Possible FailurePath:
[L1522] const int GLOBAL_CONST_TRUE = 1;
[L1523] const int GLOBAL_CONST_FALSE = 0;
[L1524] const int GLOBAL_CONST_FIVE = 5;
[L1525] int globalTrue = 1;
[L1526] int globalFalse = 0;
[L1527] int globalFive = 5;
[L1546] int globalArgc = 0;
[L1547] char** globalArgv = ((void *)0);
[L1548] int CWE191_Integer_Underflow__int_min_sub_22_badGlobal = 0;
[L1561] CALL printLine("Calling bad()...")
VAL [CWE191_Integer_Underflow__int_min_sub_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}]
[L1414] COND TRUE line != ((void *)0)
[L1561] RET printLine("Calling bad()...")
VAL [CWE191_Integer_Underflow__int_min_sub_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1562] CALL CWE191_Integer_Underflow__int_min_sub_22_bad()
[L1552] int data;
[L1553] data = 0
[L1554] data = (-0x7fffffff - 1)
[L1555] CWE191_Integer_Underflow__int_min_sub_22_badGlobal = 1
[L1556] CALL CWE191_Integer_Underflow__int_min_sub_22_badSink(data)
[L1569] COND TRUE \read(CWE191_Integer_Underflow__int_min_sub_22_badGlobal)
VAL [CWE191_Integer_Underflow__int_min_sub_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1572] data - 1
VAL [CWE191_Integer_Underflow__int_min_sub_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1572]: 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 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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=16occurred 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, 9 NumberOfCodeBlocks, 9 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 could not prove your program: unable to determine feasibility of some traces
[2023-12-02 13:39:13,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0abec962-a04e-4611-a233-ede3580f00ae/bin/utaipan-verify-nQ1chXbOIh/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:
UNKNOWN: Overapproximated counterexample