./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-regression/callfpointer_true-termination.c_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/ldv-regression/callfpointer_true-termination.c_false-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 302f70b774fc5b69662b9ef8666b86017ea3a54d ................................................................................................................................................................................................................................... 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 0.1.24-91b1670 [2018-11-28 18:06:59,669 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:06:59,670 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:06:59,683 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:06:59,684 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:06:59,685 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:06:59,686 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:06:59,689 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:06:59,691 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:06:59,692 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:06:59,693 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:06:59,693 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:06:59,695 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:06:59,696 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:06:59,697 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:06:59,698 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:06:59,699 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:06:59,702 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:06:59,704 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:06:59,706 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:06:59,707 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:06:59,708 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:06:59,711 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:06:59,712 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:06:59,712 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:06:59,713 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:06:59,715 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:06:59,716 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:06:59,717 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:06:59,718 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:06:59,719 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:06:59,719 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:06:59,720 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:06:59,720 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:06:59,722 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:06:59,723 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:06:59,723 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:06:59,740 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:06:59,740 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:06:59,741 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:06:59,741 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:06:59,742 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:06:59,743 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:06:59,743 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:06:59,743 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:06:59,743 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:06:59,744 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:06:59,744 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:06:59,744 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:06:59,744 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:06:59,746 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:06:59,746 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:06:59,746 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:06:59,746 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:06:59,746 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:06:59,747 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:06:59,747 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:06:59,748 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:06:59,748 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:06:59,748 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:06:59,748 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:06:59,748 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:06:59,748 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:06:59,749 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:06:59,750 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:06:59,750 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:06:59,750 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:06:59,750 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 302f70b774fc5b69662b9ef8666b86017ea3a54d [2018-11-28 18:06:59,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:06:59,809 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:06:59,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:06:59,819 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:06:59,820 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:06:59,821 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-regression/callfpointer_true-termination.c_false-unreach-call.i [2018-11-28 18:06:59,890 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49d534cf0/9a6fc9c832284ff680265508d8324a3c/FLAGd03554157 [2018-11-28 18:07:00,338 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:07:00,339 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-regression/callfpointer_true-termination.c_false-unreach-call.i [2018-11-28 18:07:00,345 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49d534cf0/9a6fc9c832284ff680265508d8324a3c/FLAGd03554157 [2018-11-28 18:07:00,714 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49d534cf0/9a6fc9c832284ff680265508d8324a3c [2018-11-28 18:07:00,719 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:07:00,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:07:00,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:07:00,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:07:00,731 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:07:00,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:07:00" (1/1) ... [2018-11-28 18:07:00,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c4eec3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:00, skipping insertion in model container [2018-11-28 18:07:00,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:07:00" (1/1) ... [2018-11-28 18:07:00,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:07:00,762 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:07:00,933 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:07:00,939 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:07:00,954 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:07:00,969 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:07:00,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:00 WrapperNode [2018-11-28 18:07:00,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:07:00,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:07:00,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:07:00,971 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:07:00,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:00" (1/1) ... [2018-11-28 18:07:00,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:00" (1/1) ... [2018-11-28 18:07:00,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:07:00,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:07:00,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:07:00,997 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:07:01,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:00" (1/1) ... [2018-11-28 18:07:01,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:00" (1/1) ... [2018-11-28 18:07:01,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:00" (1/1) ... [2018-11-28 18:07:01,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:00" (1/1) ... [2018-11-28 18:07:01,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:00" (1/1) ... [2018-11-28 18:07:01,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:00" (1/1) ... [2018-11-28 18:07:01,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:00" (1/1) ... [2018-11-28 18:07:01,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:07:01,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:07:01,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:07:01,016 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:07:01,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 18:07:01,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:07:01,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:07:01,139 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-28 18:07:01,139 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-28 18:07:01,139 INFO L130 BoogieDeclarations]: Found specification of procedure h [2018-11-28 18:07:01,139 INFO L138 BoogieDeclarations]: Found implementation of procedure h [2018-11-28 18:07:01,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:07:01,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:07:01,140 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:07:01,140 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:07:01,140 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2018-11-28 18:07:01,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2018-11-28 18:07:01,319 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:07:01,319 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 18:07:01,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:07:01 BoogieIcfgContainer [2018-11-28 18:07:01,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:07:01,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:07:01,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:07:01,324 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:07:01,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:07:00" (1/3) ... [2018-11-28 18:07:01,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e003f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:07:01, skipping insertion in model container [2018-11-28 18:07:01,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:00" (2/3) ... [2018-11-28 18:07:01,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e003f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:07:01, skipping insertion in model container [2018-11-28 18:07:01,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:07:01" (3/3) ... [2018-11-28 18:07:01,329 INFO L112 eAbstractionObserver]: Analyzing ICFG callfpointer_true-termination.c_false-unreach-call.i [2018-11-28 18:07:01,340 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:07:01,348 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:07:01,369 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:07:01,415 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:07:01,416 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:07:01,416 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:07:01,416 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:07:01,416 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:07:01,416 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:07:01,416 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:07:01,417 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:07:01,417 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:07:01,441 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-28 18:07:01,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 18:07:01,449 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:07:01,450 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:07:01,453 INFO L423 AbstractCegarLoop]: === Iteration 1 === [hErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:07:01,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:07:01,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1027422766, now seen corresponding path program 1 times [2018-11-28 18:07:01,464 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:07:01,465 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:07:01,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:01,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:07:01,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:07:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:07:01,625 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:07:01,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:07:01 BoogieIcfgContainer [2018-11-28 18:07:01,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:07:01,650 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:07:01,650 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:07:01,650 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:07:01,652 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:07:01" (3/4) ... [2018-11-28 18:07:01,654 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 18:07:01,696 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:07:01,696 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:07:01,697 INFO L168 Benchmark]: Toolchain (without parser) took 976.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -151.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:07:01,699 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:07:01,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.32 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:07:01,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.35 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:07:01,701 INFO L168 Benchmark]: Boogie Preprocessor took 18.64 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:07:01,701 INFO L168 Benchmark]: RCFGBuilder took 303.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:07:01,703 INFO L168 Benchmark]: TraceAbstraction took 328.69 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:07:01,704 INFO L168 Benchmark]: Witness Printer took 46.22 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:07:01,710 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 247.32 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 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 26.35 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.64 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 303.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 328.69 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * Witness Printer took 46.22 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 14]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L20] CALL f(h) VAL [g={-1:0}] [L9] CALL g(1) [L13] COND TRUE i==1 VAL [\old(i)=1, i=1] [L14] __VERIFIER_error() VAL [\old(i)=1, i=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 24 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...