./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_4_false-unreach-call_true-termination.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 635dfa2a
Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_56f29365-303c-4967-ac12-889e2be31566/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_56f29365-303c-4967-ac12-889e2be31566/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_56f29365-303c-4967-ac12-889e2be31566/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_56f29365-303c-4967-ac12-889e2be31566/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_4_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_56f29365-303c-4967-ac12-889e2be31566/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_56f29365-303c-4967-ac12-889e2be31566/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 66fc6b12b7cd24de7373fe06aeeb5aec1e7e0e8b
........................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE
--- Real Ultimate output ---
This is Ultimate 0.1.23-635dfa2
[2018-12-02 07:26:18,199 INFO L170 SettingsManager]: Resetting all preferences to default values...
[2018-12-02 07:26:18,200 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values
[2018-12-02 07:26:18,207 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-12-02 07:26:18,207 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-12-02 07:26:18,208 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-12-02 07:26:18,209 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2018-12-02 07:26:18,210 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values
[2018-12-02 07:26:18,211 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2018-12-02 07:26:18,212 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2018-12-02 07:26:18,212 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2018-12-02 07:26:18,213 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-12-02 07:26:18,213 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2018-12-02 07:26:18,214 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-12-02 07:26:18,215 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2018-12-02 07:26:18,215 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-12-02 07:26:18,216 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-12-02 07:26:18,217 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-12-02 07:26:18,218 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values
[2018-12-02 07:26:18,219 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-12-02 07:26:18,220 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-12-02 07:26:18,221 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-12-02 07:26:18,222 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-12-02 07:26:18,223 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-12-02 07:26:18,223 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2018-12-02 07:26:18,223 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-12-02 07:26:18,224 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-12-02 07:26:18,224 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values
[2018-12-02 07:26:18,225 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values
[2018-12-02 07:26:18,226 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-12-02 07:26:18,226 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values
[2018-12-02 07:26:18,226 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2018-12-02 07:26:18,226 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring...
[2018-12-02 07:26:18,227 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values
[2018-12-02 07:26:18,227 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values
[2018-12-02 07:26:18,228 INFO L181 SettingsManager]: Finished resetting all preferences to default values...
[2018-12-02 07:26:18,228 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_56f29365-303c-4967-ac12-889e2be31566/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2018-12-02 07:26:18,237 INFO L110 SettingsManager]: Loading preferences was successful
[2018-12-02 07:26:18,237 INFO L112 SettingsManager]: Preferences different from defaults after loading the file:
[2018-12-02 07:26:18,238 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-12-02 07:26:18,238 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS
[2018-12-02 07:26:18,238 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2018-12-02 07:26:18,238 INFO L133 SettingsManager]: * Create parallel compositions if possible=false
[2018-12-02 07:26:18,239 INFO L133 SettingsManager]: * Use SBE=true
[2018-12-02 07:26:18,239 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-12-02 07:26:18,239 INFO L133 SettingsManager]: * sizeof long=4
[2018-12-02 07:26:18,239 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true
[2018-12-02 07:26:18,239 INFO L133 SettingsManager]: * sizeof POINTER=4
[2018-12-02 07:26:18,239 INFO L133 SettingsManager]: * Check division by zero=IGNORE
[2018-12-02 07:26:18,239 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2018-12-02 07:26:18,240 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-12-02 07:26:18,240 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2018-12-02 07:26:18,240 INFO L133 SettingsManager]: * sizeof long double=12
[2018-12-02 07:26:18,240 INFO L133 SettingsManager]: * Check if freed pointer was valid=false
[2018-12-02 07:26:18,240 INFO L133 SettingsManager]: * Use constant arrays=true
[2018-12-02 07:26:18,240 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2018-12-02 07:26:18,240 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-12-02 07:26:18,240 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements
[2018-12-02 07:26:18,241 INFO L133 SettingsManager]: * To the following directory=./dump/
[2018-12-02 07:26:18,241 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode
[2018-12-02 07:26:18,241 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-12-02 07:26:18,241 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-12-02 07:26:18,241 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2018-12-02 07:26:18,241 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-12-02 07:26:18,241 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL
[2018-12-02 07:26:18,242 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2018-12-02 07:26:18,242 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-12-02 07:26:18,242 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
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_56f29365-303c-4967-ac12-889e2be31566/bin-2019/uautomizer
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 ! call(__VERIFIER_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66fc6b12b7cd24de7373fe06aeeb5aec1e7e0e8b
[2018-12-02 07:26:18,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2018-12-02 07:26:18,272 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-12-02 07:26:18,274 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-12-02 07:26:18,275 INFO L271 PluginConnector]: Initializing CDTParser...
[2018-12-02 07:26:18,276 INFO L276 PluginConnector]: CDTParser initialized
[2018-12-02 07:26:18,276 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_56f29365-303c-4967-ac12-889e2be31566/bin-2019/uautomizer/../../sv-benchmarks/c/loops/while_infinite_loop_4_false-unreach-call_true-termination.i
[2018-12-02 07:26:18,320 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_56f29365-303c-4967-ac12-889e2be31566/bin-2019/uautomizer/data/e2a3d2fdb/75db144b6fe14141be0910d22bd60317/FLAG7d1ac5797
[2018-12-02 07:26:18,762 INFO L307 CDTParser]: Found 1 translation units.
[2018-12-02 07:26:18,762 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_56f29365-303c-4967-ac12-889e2be31566/sv-benchmarks/c/loops/while_infinite_loop_4_false-unreach-call_true-termination.i
[2018-12-02 07:26:18,765 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_56f29365-303c-4967-ac12-889e2be31566/bin-2019/uautomizer/data/e2a3d2fdb/75db144b6fe14141be0910d22bd60317/FLAG7d1ac5797
[2018-12-02 07:26:18,773 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_56f29365-303c-4967-ac12-889e2be31566/bin-2019/uautomizer/data/e2a3d2fdb/75db144b6fe14141be0910d22bd60317
[2018-12-02 07:26:18,775 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-12-02 07:26:18,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2018-12-02 07:26:18,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-12-02 07:26:18,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-12-02 07:26:18,778 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized
[2018-12-02 07:26:18,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:26:18" (1/1) ...
[2018-12-02 07:26:18,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672351b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:18, skipping insertion in model container
[2018-12-02 07:26:18,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:26:18" (1/1) ...
[2018-12-02 07:26:18,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2018-12-02 07:26:18,797 INFO L176 MainTranslator]: Built tables and reachable declarations
[2018-12-02 07:26:18,884 INFO L203 PostProcessor]: Analyzing one entry point: main
[2018-12-02 07:26:18,887 INFO L191 MainTranslator]: Completed pre-run
[2018-12-02 07:26:18,895 INFO L203 PostProcessor]: Analyzing one entry point: main
[2018-12-02 07:26:18,903 INFO L195 MainTranslator]: Completed translation
[2018-12-02 07:26:18,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:18 WrapperNode
[2018-12-02 07:26:18,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-12-02 07:26:18,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2018-12-02 07:26:18,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2018-12-02 07:26:18,904 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized
[2018-12-02 07:26:18,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:18" (1/1) ...
[2018-12-02 07:26:18,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:18" (1/1) ...
[2018-12-02 07:26:18,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2018-12-02 07:26:18,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-12-02 07:26:18,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2018-12-02 07:26:18,920 INFO L276 PluginConnector]: Boogie Preprocessor initialized
[2018-12-02 07:26:18,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:18" (1/1) ...
[2018-12-02 07:26:18,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:18" (1/1) ...
[2018-12-02 07:26:18,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:18" (1/1) ...
[2018-12-02 07:26:18,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:18" (1/1) ...
[2018-12-02 07:26:18,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:18" (1/1) ...
[2018-12-02 07:26:18,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:18" (1/1) ...
[2018-12-02 07:26:18,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:18" (1/1) ...
[2018-12-02 07:26:18,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-12-02 07:26:18,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-12-02 07:26:18,932 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2018-12-02 07:26:18,932 INFO L276 PluginConnector]: RCFGBuilder initialized
[2018-12-02 07:26:18,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:18" (1/1) ...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_56f29365-303c-4967-ac12-889e2be31566/bin-2019/uautomizer/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
[2018-12-02 07:26:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2018-12-02 07:26:18,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2018-12-02 07:26:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure eval
[2018-12-02 07:26:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure eval
[2018-12-02 07:26:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-12-02 07:26:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-12-02 07:26:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2018-12-02 07:26:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2018-12-02 07:26:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2018-12-02 07:26:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2018-12-02 07:26:19,068 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-12-02 07:26:19,068 INFO L280 CfgBuilder]: Removed 2 assue(true) statements.
[2018-12-02 07:26:19,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:26:19 BoogieIcfgContainer
[2018-12-02 07:26:19,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-12-02 07:26:19,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2018-12-02 07:26:19,069 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2018-12-02 07:26:19,070 INFO L276 PluginConnector]: TraceAbstraction initialized
[2018-12-02 07:26:19,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:26:18" (1/3) ...
[2018-12-02 07:26:19,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcaa07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:26:19, skipping insertion in model container
[2018-12-02 07:26:19,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:18" (2/3) ...
[2018-12-02 07:26:19,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcaa07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:26:19, skipping insertion in model container
[2018-12-02 07:26:19,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:26:19" (3/3) ...
[2018-12-02 07:26:19,072 INFO L112 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_4_false-unreach-call_true-termination.i
[2018-12-02 07:26:19,078 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2018-12-02 07:26:19,082 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2018-12-02 07:26:19,092 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2018-12-02 07:26:19,109 INFO L133 ementStrategyFactory]: Using default assertion order modulation
[2018-12-02 07:26:19,110 INFO L382 AbstractCegarLoop]: Interprodecural is true
[2018-12-02 07:26:19,110 INFO L383 AbstractCegarLoop]: Hoare is true
[2018-12-02 07:26:19,110 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP
[2018-12-02 07:26:19,110 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2018-12-02 07:26:19,110 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-12-02 07:26:19,110 INFO L387 AbstractCegarLoop]: Difference is false
[2018-12-02 07:26:19,110 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-12-02 07:26:19,110 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2018-12-02 07:26:19,121 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states.
[2018-12-02 07:26:19,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2018-12-02 07:26:19,125 INFO L394 BasicCegarLoop]: Found error trace
[2018-12-02 07:26:19,125 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-12-02 07:26:19,127 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-12-02 07:26:19,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-12-02 07:26:19,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1783967560, now seen corresponding path program 1 times
[2018-12-02 07:26:19,131 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-12-02 07:26:19,131 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-12-02 07:26:19,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-02 07:26:19,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-12-02 07:26:19,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-02 07:26:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-02 07:26:19,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-02 07:26:19,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-12-02 07:26:19,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2018-12-02 07:26:19,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states
[2018-12-02 07:26:19,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2018-12-02 07:26:19,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2018-12-02 07:26:19,208 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states.
[2018-12-02 07:26:19,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-12-02 07:26:19,221 INFO L93 Difference]: Finished difference Result 35 states and 47 transitions.
[2018-12-02 07:26:19,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2018-12-02 07:26:19,222 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10
[2018-12-02 07:26:19,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-12-02 07:26:19,227 INFO L225 Difference]: With dead ends: 35
[2018-12-02 07:26:19,227 INFO L226 Difference]: Without dead ends: 17
[2018-12-02 07:26:19,229 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
[2018-12-02 07:26:19,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2018-12-02 07:26:19,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2018-12-02 07:26:19,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states.
[2018-12-02 07:26:19,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions.
[2018-12-02 07:26:19,249 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10
[2018-12-02 07:26:19,249 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-12-02 07:26:19,249 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions.
[2018-12-02 07:26:19,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2018-12-02 07:26:19,250 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions.
[2018-12-02 07:26:19,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2018-12-02 07:26:19,250 INFO L394 BasicCegarLoop]: Found error trace
[2018-12-02 07:26:19,250 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-12-02 07:26:19,250 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-12-02 07:26:19,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-12-02 07:26:19,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1698359207, now seen corresponding path program 1 times
[2018-12-02 07:26:19,251 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-12-02 07:26:19,251 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-12-02 07:26:19,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-02 07:26:19,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-12-02 07:26:19,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-02 07:26:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-02 07:26:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-02 07:26:19,275 INFO L469 BasicCegarLoop]: Counterexample might be feasible
[2018-12-02 07:26:19,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:26:19 BoogieIcfgContainer
[2018-12-02 07:26:19,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2018-12-02 07:26:19,290 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2018-12-02 07:26:19,290 INFO L271 PluginConnector]: Initializing Witness Printer...
[2018-12-02 07:26:19,290 INFO L276 PluginConnector]: Witness Printer initialized
[2018-12-02 07:26:19,290 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:26:19" (3/4) ...
[2018-12-02 07:26:19,292 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample
[2018-12-02 07:26:19,315 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_56f29365-303c-4967-ac12-889e2be31566/bin-2019/uautomizer/witness.graphml
[2018-12-02 07:26:19,315 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2018-12-02 07:26:19,316 INFO L168 Benchmark]: Toolchain (without parser) took 540.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -124.1 MB). There was no memory consumed. Max. memory is 11.5 GB.
[2018-12-02 07:26:19,317 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-12-02 07:26:19,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 127.35 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB.
[2018-12-02 07:26:19,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.05 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-12-02 07:26:19,317 INFO L168 Benchmark]: Boogie Preprocessor took 12.57 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-12-02 07:26:19,317 INFO L168 Benchmark]: RCFGBuilder took 135.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB.
[2018-12-02 07:26:19,318 INFO L168 Benchmark]: TraceAbstraction took 220.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB.
[2018-12-02 07:26:19,318 INFO L168 Benchmark]: Witness Printer took 25.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-12-02 07:26:19,320 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB.
* CACSL2BoogieTranslator took 127.35 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB.
* Boogie Procedure Inliner took 16.05 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB.
* Boogie Preprocessor took 12.57 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB.
* RCFGBuilder took 135.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB.
* TraceAbstraction took 220.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB.
* Witness Printer took 25.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L10] int x=0;
VAL [\old(x)=2, x=0]
[L24] COND TRUE 1
VAL [\old(x)=0, x=0]
[L26] CALL eval()
VAL [\old(x)=0, x=0]
[L14] COND TRUE 1
[L15] x=1
VAL [\old(x)=0, x=1]
[L26] RET eval()
VAL [\old(x)=0, x=1]
[L27] CALL __VERIFIER_assert(x==0)
VAL [\old(cond)=0, \old(x)=0, x=1]
[L4] COND TRUE !(cond)
VAL [\old(cond)=0, \old(x)=0, cond=0, x=1]
[L5] __VERIFIER_error()
VAL [\old(cond)=0, \old(x)=0, cond=0, x=1]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 23 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...