./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b_false-no-overflow.c --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 635dfa2a
Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b40dcd3a-f525-4f79-b74e-b3175627e407/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b40dcd3a-f525-4f79-b74e-b3175627e407/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b40dcd3a-f525-4f79-b74e-b3175627e407/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b40dcd3a-f525-4f79-b74e-b3175627e407/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b40dcd3a-f525-4f79-b74e-b3175627e407/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b40dcd3a-f525-4f79-b74e-b3175627e407/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b51d3ff9a76866bd9c6637bca261a8433dd4524e
...............................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(OVERFLOW)
--- Real Ultimate output ---
This is Ultimate 0.1.23-635dfa2
[2018-12-03 04:43:41,813 INFO L170 SettingsManager]: Resetting all preferences to default values...
[2018-12-03 04:43:41,814 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values
[2018-12-03 04:43:41,822 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-12-03 04:43:41,822 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-12-03 04:43:41,823 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-12-03 04:43:41,824 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2018-12-03 04:43:41,825 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values
[2018-12-03 04:43:41,826 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2018-12-03 04:43:41,827 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2018-12-03 04:43:41,827 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2018-12-03 04:43:41,828 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-12-03 04:43:41,828 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2018-12-03 04:43:41,829 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-12-03 04:43:41,830 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2018-12-03 04:43:41,830 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-12-03 04:43:41,831 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-12-03 04:43:41,832 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-12-03 04:43:41,833 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values
[2018-12-03 04:43:41,834 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-12-03 04:43:41,835 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-12-03 04:43:41,835 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-12-03 04:43:41,837 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-12-03 04:43:41,837 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-12-03 04:43:41,837 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2018-12-03 04:43:41,838 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-12-03 04:43:41,839 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-12-03 04:43:41,839 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values
[2018-12-03 04:43:41,840 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values
[2018-12-03 04:43:41,840 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-12-03 04:43:41,841 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values
[2018-12-03 04:43:41,841 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2018-12-03 04:43:41,841 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring...
[2018-12-03 04:43:41,841 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values
[2018-12-03 04:43:41,842 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values
[2018-12-03 04:43:41,842 INFO L181 SettingsManager]: Finished resetting all preferences to default values...
[2018-12-03 04:43:41,843 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b40dcd3a-f525-4f79-b74e-b3175627e407/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf
[2018-12-03 04:43:41,852 INFO L110 SettingsManager]: Loading preferences was successful
[2018-12-03 04:43:41,852 INFO L112 SettingsManager]: Preferences different from defaults after loading the file:
[2018-12-03 04:43:41,853 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-12-03 04:43:41,853 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS
[2018-12-03 04:43:41,853 INFO L133 SettingsManager]: * User list type=DISABLED
[2018-12-03 04:43:41,853 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2018-12-03 04:43:41,853 INFO L133 SettingsManager]: * Explicit value domain=true
[2018-12-03 04:43:41,853 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2018-12-03 04:43:41,853 INFO L133 SettingsManager]: * Octagon Domain=false
[2018-12-03 04:43:41,854 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain
[2018-12-03 04:43:41,854 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true
[2018-12-03 04:43:41,854 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true
[2018-12-03 04:43:41,854 INFO L133 SettingsManager]: * Interval Domain=false
[2018-12-03 04:43:41,854 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-12-03 04:43:41,854 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2018-12-03 04:43:41,854 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true
[2018-12-03 04:43:41,855 INFO L133 SettingsManager]: * Check division by zero=IGNORE
[2018-12-03 04:43:41,855 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2018-12-03 04:43:41,855 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-12-03 04:43:41,855 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2018-12-03 04:43:41,855 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true
[2018-12-03 04:43:41,855 INFO L133 SettingsManager]: * Check if freed pointer was valid=false
[2018-12-03 04:43:41,855 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2018-12-03 04:43:41,855 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-12-03 04:43:41,856 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements
[2018-12-03 04:43:41,856 INFO L133 SettingsManager]: * To the following directory=./dump/
[2018-12-03 04:43:41,856 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode
[2018-12-03 04:43:41,856 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-12-03 04:43:41,856 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-12-03 04:43:41,856 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2018-12-03 04:43:41,856 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-12-03 04:43:41,856 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN
[2018-12-03 04:43:41,856 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2018-12-03 04:43:41,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-12-03 04:43:41,857 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2018-12-03 04:43:41,857 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES
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-vcloud-master/worker/working_dir_b40dcd3a-f525-4f79-b74e-b3175627e407/bin-2019/utaipan
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 -> 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 -> b51d3ff9a76866bd9c6637bca261a8433dd4524e
[2018-12-03 04:43:41,875 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2018-12-03 04:43:41,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-12-03 04:43:41,884 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-12-03 04:43:41,884 INFO L271 PluginConnector]: Initializing CDTParser...
[2018-12-03 04:43:41,885 INFO L276 PluginConnector]: CDTParser initialized
[2018-12-03 04:43:41,885 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b40dcd3a-f525-4f79-b74e-b3175627e407/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b_false-no-overflow.c
[2018-12-03 04:43:41,921 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b40dcd3a-f525-4f79-b74e-b3175627e407/bin-2019/utaipan/data/d1d26eee9/66f4a744cb724a6a952eba7480245d68/FLAG4fb69aa56
[2018-12-03 04:43:42,343 INFO L307 CDTParser]: Found 1 translation units.
[2018-12-03 04:43:42,344 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b40dcd3a-f525-4f79-b74e-b3175627e407/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b_false-no-overflow.c
[2018-12-03 04:43:42,347 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b40dcd3a-f525-4f79-b74e-b3175627e407/bin-2019/utaipan/data/d1d26eee9/66f4a744cb724a6a952eba7480245d68/FLAG4fb69aa56
[2018-12-03 04:43:42,355 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b40dcd3a-f525-4f79-b74e-b3175627e407/bin-2019/utaipan/data/d1d26eee9/66f4a744cb724a6a952eba7480245d68
[2018-12-03 04:43:42,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-12-03 04:43:42,358 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2018-12-03 04:43:42,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-12-03 04:43:42,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-12-03 04:43:42,362 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized
[2018-12-03 04:43:42,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:43:42" (1/1) ...
[2018-12-03 04:43:42,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e0d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:43:42, skipping insertion in model container
[2018-12-03 04:43:42,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:43:42" (1/1) ...
[2018-12-03 04:43:42,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2018-12-03 04:43:42,378 INFO L176 MainTranslator]: Built tables and reachable declarations
[2018-12-03 04:43:42,465 INFO L203 PostProcessor]: Analyzing one entry point: main
[2018-12-03 04:43:42,467 INFO L191 MainTranslator]: Completed pre-run
[2018-12-03 04:43:42,476 INFO L203 PostProcessor]: Analyzing one entry point: main
[2018-12-03 04:43:42,484 INFO L195 MainTranslator]: Completed translation
[2018-12-03 04:43:42,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:43:42 WrapperNode
[2018-12-03 04:43:42,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-12-03 04:43:42,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2018-12-03 04:43:42,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2018-12-03 04:43:42,485 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized
[2018-12-03 04:43:42,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:43:42" (1/1) ...
[2018-12-03 04:43:42,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:43:42" (1/1) ...
[2018-12-03 04:43:42,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2018-12-03 04:43:42,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-12-03 04:43:42,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2018-12-03 04:43:42,496 INFO L276 PluginConnector]: Boogie Preprocessor initialized
[2018-12-03 04:43:42,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:43:42" (1/1) ...
[2018-12-03 04:43:42,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:43:42" (1/1) ...
[2018-12-03 04:43:42,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:43:42" (1/1) ...
[2018-12-03 04:43:42,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:43:42" (1/1) ...
[2018-12-03 04:43:42,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:43:42" (1/1) ...
[2018-12-03 04:43:42,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:43:42" (1/1) ...
[2018-12-03 04:43:42,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:43:42" (1/1) ...
[2018-12-03 04:43:42,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-12-03 04:43:42,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-12-03 04:43:42,509 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2018-12-03 04:43:42,509 INFO L276 PluginConnector]: RCFGBuilder initialized
[2018-12-03 04:43:42,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:43:42" (1/1) ...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b40dcd3a-f525-4f79-b74e-b3175627e407/bin-2019/utaipan/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-12-03 04:43:42,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2018-12-03 04:43:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2018-12-03 04:43:42,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-12-03 04:43:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-12-03 04:43:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2018-12-03 04:43:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2018-12-03 04:43:42,680 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-12-03 04:43:42,681 INFO L280 CfgBuilder]: Removed 3 assue(true) statements.
[2018-12-03 04:43:42,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:43:42 BoogieIcfgContainer
[2018-12-03 04:43:42,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-12-03 04:43:42,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2018-12-03 04:43:42,682 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2018-12-03 04:43:42,685 INFO L276 PluginConnector]: TraceAbstraction initialized
[2018-12-03 04:43:42,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 04:43:42" (1/3) ...
[2018-12-03 04:43:42,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd1981e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:43:42, skipping insertion in model container
[2018-12-03 04:43:42,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:43:42" (2/3) ...
[2018-12-03 04:43:42,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd1981e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:43:42, skipping insertion in model container
[2018-12-03 04:43:42,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:43:42" (3/3) ...
[2018-12-03 04:43:42,687 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-counterex1b_false-no-overflow.c
[2018-12-03 04:43:42,695 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2018-12-03 04:43:42,702 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations.
[2018-12-03 04:43:42,712 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2018-12-03 04:43:42,733 INFO L382 AbstractCegarLoop]: Interprodecural is true
[2018-12-03 04:43:42,734 INFO L383 AbstractCegarLoop]: Hoare is true
[2018-12-03 04:43:42,734 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP
[2018-12-03 04:43:42,734 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2018-12-03 04:43:42,734 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-12-03 04:43:42,734 INFO L387 AbstractCegarLoop]: Difference is false
[2018-12-03 04:43:42,734 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-12-03 04:43:42,734 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2018-12-03 04:43:42,746 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states.
[2018-12-03 04:43:42,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2018-12-03 04:43:42,750 INFO L394 BasicCegarLoop]: Found error trace
[2018-12-03 04:43:42,750 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2018-12-03 04:43:42,752 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]===
[2018-12-03 04:43:42,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-12-03 04:43:42,756 INFO L82 PathProgramCache]: Analyzing trace with hash 257117704, now seen corresponding path program 1 times
[2018-12-03 04:43:42,757 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-12-03 04:43:42,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-03 04:43:42,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-12-03 04:43:42,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-03 04:43:42,790 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-12-03 04:43:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-03 04:43:42,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-03 04:43:42,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-12-03 04:43:42,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2018-12-03 04:43:42,828 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-12-03 04:43:42,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states
[2018-12-03 04:43:42,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2018-12-03 04:43:42,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2018-12-03 04:43:42,839 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states.
[2018-12-03 04:43:42,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-12-03 04:43:42,851 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions.
[2018-12-03 04:43:42,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2018-12-03 04:43:42,852 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8
[2018-12-03 04:43:42,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-12-03 04:43:42,858 INFO L225 Difference]: With dead ends: 53
[2018-12-03 04:43:42,858 INFO L226 Difference]: Without dead ends: 24
[2018-12-03 04:43:42,860 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2018-12-03 04:43:42,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2018-12-03 04:43:42,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24.
[2018-12-03 04:43:42,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states.
[2018-12-03 04:43:42,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions.
[2018-12-03 04:43:42,882 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 8
[2018-12-03 04:43:42,882 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-12-03 04:43:42,882 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions.
[2018-12-03 04:43:42,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2018-12-03 04:43:42,882 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions.
[2018-12-03 04:43:42,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2018-12-03 04:43:42,883 INFO L394 BasicCegarLoop]: Found error trace
[2018-12-03 04:43:42,883 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-12-03 04:43:42,883 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]===
[2018-12-03 04:43:42,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-12-03 04:43:42,884 INFO L82 PathProgramCache]: Analyzing trace with hash -2018510573, now seen corresponding path program 1 times
[2018-12-03 04:43:42,884 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-12-03 04:43:42,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-03 04:43:42,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-12-03 04:43:42,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-03 04:43:42,885 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-12-03 04:43:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-03 04:43:42,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-03 04:43:42,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-12-03 04:43:42,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2018-12-03 04:43:42,917 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-12-03 04:43:42,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2018-12-03 04:43:42,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2018-12-03 04:43:42,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-12-03 04:43:42,918 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 3 states.
[2018-12-03 04:43:42,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-12-03 04:43:42,928 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions.
[2018-12-03 04:43:42,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2018-12-03 04:43:42,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10
[2018-12-03 04:43:42,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-12-03 04:43:42,929 INFO L225 Difference]: With dead ends: 24
[2018-12-03 04:43:42,929 INFO L226 Difference]: Without dead ends: 23
[2018-12-03 04:43:42,930 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-12-03 04:43:42,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2018-12-03 04:43:42,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2018-12-03 04:43:42,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states.
[2018-12-03 04:43:42,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions.
[2018-12-03 04:43:42,932 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 10
[2018-12-03 04:43:42,932 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-12-03 04:43:42,932 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions.
[2018-12-03 04:43:42,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2018-12-03 04:43:42,932 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions.
[2018-12-03 04:43:42,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2018-12-03 04:43:42,933 INFO L394 BasicCegarLoop]: Found error trace
[2018-12-03 04:43:42,933 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-12-03 04:43:42,933 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]===
[2018-12-03 04:43:42,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-12-03 04:43:42,933 INFO L82 PathProgramCache]: Analyzing trace with hash -2018510518, now seen corresponding path program 1 times
[2018-12-03 04:43:42,933 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-12-03 04:43:42,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-03 04:43:42,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-12-03 04:43:42,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-03 04:43:42,934 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-12-03 04:43:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-03 04:43:42,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-03 04:43:42,948 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-12-03 04:43:42,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2018-12-03 04:43:42,948 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-12-03 04:43:42,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2018-12-03 04:43:42,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2018-12-03 04:43:42,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-12-03 04:43:42,949 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 3 states.
[2018-12-03 04:43:42,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-12-03 04:43:42,974 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions.
[2018-12-03 04:43:42,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2018-12-03 04:43:42,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10
[2018-12-03 04:43:42,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-12-03 04:43:42,975 INFO L225 Difference]: With dead ends: 38
[2018-12-03 04:43:42,975 INFO L226 Difference]: Without dead ends: 37
[2018-12-03 04:43:42,975 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-12-03 04:43:42,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2018-12-03 04:43:42,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34.
[2018-12-03 04:43:42,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states.
[2018-12-03 04:43:42,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions.
[2018-12-03 04:43:42,979 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 10
[2018-12-03 04:43:42,979 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-12-03 04:43:42,979 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions.
[2018-12-03 04:43:42,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2018-12-03 04:43:42,979 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions.
[2018-12-03 04:43:42,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2018-12-03 04:43:42,979 INFO L394 BasicCegarLoop]: Found error trace
[2018-12-03 04:43:42,979 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-12-03 04:43:42,979 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]===
[2018-12-03 04:43:42,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-12-03 04:43:42,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1850681747, now seen corresponding path program 1 times
[2018-12-03 04:43:42,980 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-12-03 04:43:42,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-03 04:43:42,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-12-03 04:43:42,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-03 04:43:42,981 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-12-03 04:43:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-03 04:43:42,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-03 04:43:42,993 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-12-03 04:43:42,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2018-12-03 04:43:42,994 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-12-03 04:43:42,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2018-12-03 04:43:42,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2018-12-03 04:43:42,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-12-03 04:43:42,994 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand 3 states.
[2018-12-03 04:43:43,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-12-03 04:43:43,001 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions.
[2018-12-03 04:43:43,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2018-12-03 04:43:43,001 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11
[2018-12-03 04:43:43,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-12-03 04:43:43,002 INFO L225 Difference]: With dead ends: 34
[2018-12-03 04:43:43,002 INFO L226 Difference]: Without dead ends: 33
[2018-12-03 04:43:43,002 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-12-03 04:43:43,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2018-12-03 04:43:43,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33.
[2018-12-03 04:43:43,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states.
[2018-12-03 04:43:43,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions.
[2018-12-03 04:43:43,005 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 11
[2018-12-03 04:43:43,005 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-12-03 04:43:43,005 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions.
[2018-12-03 04:43:43,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2018-12-03 04:43:43,006 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions.
[2018-12-03 04:43:43,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2018-12-03 04:43:43,006 INFO L394 BasicCegarLoop]: Found error trace
[2018-12-03 04:43:43,006 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-12-03 04:43:43,006 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]===
[2018-12-03 04:43:43,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-12-03 04:43:43,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1850683445, now seen corresponding path program 1 times
[2018-12-03 04:43:43,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-12-03 04:43:43,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-03 04:43:43,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-12-03 04:43:43,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-03 04:43:43,007 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-12-03 04:43:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-03 04:43:43,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-03 04:43:43,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-12-03 04:43:43,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2018-12-03 04:43:43,028 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence
[2018-12-03 04:43:43,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2018-12-03 04:43:43,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2018-12-03 04:43:43,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2018-12-03 04:43:43,029 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand 4 states.
[2018-12-03 04:43:43,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-12-03 04:43:43,061 INFO L93 Difference]: Finished difference Result 54 states and 72 transitions.
[2018-12-03 04:43:43,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2018-12-03 04:43:43,062 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11
[2018-12-03 04:43:43,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-12-03 04:43:43,063 INFO L225 Difference]: With dead ends: 54
[2018-12-03 04:43:43,063 INFO L226 Difference]: Without dead ends: 52
[2018-12-03 04:43:43,063 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2018-12-03 04:43:43,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2018-12-03 04:43:43,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52.
[2018-12-03 04:43:43,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states.
[2018-12-03 04:43:43,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 69 transitions.
[2018-12-03 04:43:43,071 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 69 transitions. Word has length 11
[2018-12-03 04:43:43,072 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-12-03 04:43:43,072 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 69 transitions.
[2018-12-03 04:43:43,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2018-12-03 04:43:43,072 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 69 transitions.
[2018-12-03 04:43:43,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2018-12-03 04:43:43,072 INFO L394 BasicCegarLoop]: Found error trace
[2018-12-03 04:43:43,073 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-12-03 04:43:43,073 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]===
[2018-12-03 04:43:43,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-12-03 04:43:43,073 INFO L82 PathProgramCache]: Analyzing trace with hash -120754312, now seen corresponding path program 1 times
[2018-12-03 04:43:43,073 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy
[2018-12-03 04:43:43,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-03 04:43:43,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-12-03 04:43:43,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-03 04:43:43,075 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation)
[2018-12-03 04:43:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-03 04:43:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-03 04:43:43,097 INFO L469 BasicCegarLoop]: Counterexample might be feasible
[2018-12-03 04:43:43,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 04:43:43 BoogieIcfgContainer
[2018-12-03 04:43:43,111 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2018-12-03 04:43:43,111 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2018-12-03 04:43:43,111 INFO L271 PluginConnector]: Initializing Witness Printer...
[2018-12-03 04:43:43,111 INFO L276 PluginConnector]: Witness Printer initialized
[2018-12-03 04:43:43,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:43:42" (3/4) ...
[2018-12-03 04:43:43,113 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample
[2018-12-03 04:43:43,136 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b40dcd3a-f525-4f79-b74e-b3175627e407/bin-2019/utaipan/witness.graphml
[2018-12-03 04:43:43,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2018-12-03 04:43:43,136 INFO L168 Benchmark]: Toolchain (without parser) took 779.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 953.5 MB in the beginning and 1.0 GB in the end (delta: -84.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB.
[2018-12-03 04:43:43,137 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-12-03 04:43:43,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 125.60 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 941.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB.
[2018-12-03 04:43:43,138 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.64 ms. Allocated memory is still 1.0 GB. Free memory is still 941.7 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-12-03 04:43:43,138 INFO L168 Benchmark]: Boogie Preprocessor took 12.59 ms. Allocated memory is still 1.0 GB. Free memory is still 941.7 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-12-03 04:43:43,138 INFO L168 Benchmark]: RCFGBuilder took 172.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -152.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB.
[2018-12-03 04:43:43,138 INFO L168 Benchmark]: TraceAbstraction took 429.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.4 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB.
[2018-12-03 04:43:43,139 INFO L168 Benchmark]: Witness Printer took 24.78 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-12-03 04:43:43,140 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB.
* CACSL2BoogieTranslator took 125.60 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 941.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB.
* Boogie Procedure Inliner took 11.64 ms. Allocated memory is still 1.0 GB. Free memory is still 941.7 MB. There was no memory consumed. Max. memory is 11.5 GB.
* Boogie Preprocessor took 12.59 ms. Allocated memory is still 1.0 GB. Free memory is still 941.7 MB. There was no memory consumed. Max. memory is 11.5 GB.
* RCFGBuilder took 172.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -152.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB.
* TraceAbstraction took 429.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.4 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB.
* Witness Printer took 24.78 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 24]: integer overflow possible
integer overflow possible
We found a FailurePath:
[L14] int x, y, n;
[L15] n = __VERIFIER_nondet_int()
[L16] x = __VERIFIER_nondet_int()
[L17] y = __VERIFIER_nondet_int()
[L18] COND TRUE x >= 0
VAL [n=2147483647, x=0, y=2147483647]
[L19] y >= 0 && __VERIFIER_nondet_int() != 0
[L19] y >= 0 && __VERIFIER_nondet_int() != 0
VAL [__VERIFIER_nondet_int()=0, n=2147483647, x=0, y=2147483647, y >= 0 && __VERIFIER_nondet_int() != 0=0]
[L19] COND FALSE !(y >= 0 && __VERIFIER_nondet_int() != 0)
[L22] EXPR x - 1
[L22] x = x - 1
VAL [n=2147483647, x=-1, y=2147483647]
[L23] y <= n && __VERIFIER_nondet_int() != 0
[L23] y <= n && __VERIFIER_nondet_int() != 0
VAL [__VERIFIER_nondet_int()=1, n=2147483647, x=-1, y=2147483647, y <= n && __VERIFIER_nondet_int() != 0=1]
[L23] COND TRUE y <= n && __VERIFIER_nondet_int() != 0
[L24] y + 1
VAL [n=2147483647, x=-1, y=2147483647]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 29 locations, 6 error locations. UNSAFE Result, 0.3s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 117 SDtfs, 67 SDslu, 44 SDs, 0 SdLazy, 43 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 801 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...