./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive/McCarthy91_false-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c2c88aad-f201-41a4-bc1e-e6d12ebb9f0f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c2c88aad-f201-41a4-bc1e-e6d12ebb9f0f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c2c88aad-f201-41a4-bc1e-e6d12ebb9f0f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c2c88aad-f201-41a4-bc1e-e6d12ebb9f0f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/McCarthy91_false-unreach-call_true-no-overflow_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c2c88aad-f201-41a4-bc1e-e6d12ebb9f0f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c2c88aad-f201-41a4-bc1e-e6d12ebb9f0f/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 37028c56b7915050ee6a79b5e737b9e44bf7c3db ........................................................................................................................................................................................................................................ 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 0.1.23-1dbac8b [2018-10-26 20:52:48,584 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 20:52:48,586 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 20:52:48,595 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 20:52:48,595 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 20:52:48,596 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 20:52:48,597 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 20:52:48,598 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 20:52:48,599 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 20:52:48,600 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 20:52:48,600 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 20:52:48,601 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 20:52:48,602 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 20:52:48,602 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 20:52:48,603 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 20:52:48,604 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 20:52:48,604 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 20:52:48,606 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 20:52:48,607 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 20:52:48,608 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 20:52:48,609 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 20:52:48,610 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 20:52:48,612 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 20:52:48,612 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 20:52:48,612 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 20:52:48,613 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 20:52:48,614 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 20:52:48,615 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 20:52:48,615 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 20:52:48,616 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 20:52:48,616 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 20:52:48,617 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 20:52:48,617 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 20:52:48,617 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 20:52:48,618 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 20:52:48,619 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 20:52:48,619 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c2c88aad-f201-41a4-bc1e-e6d12ebb9f0f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 20:52:48,629 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 20:52:48,629 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 20:52:48,629 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 20:52:48,630 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 20:52:48,630 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 20:52:48,630 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 20:52:48,630 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 20:52:48,630 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 20:52:48,631 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 20:52:48,631 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 20:52:48,631 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 20:52:48,631 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 20:52:48,631 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 20:52:48,631 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 20:52:48,631 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 20:52:48,631 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 20:52:48,632 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 20:52:48,632 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 20:52:48,632 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 20:52:48,632 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 20:52:48,632 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 20:52:48,632 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 20:52:48,634 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 20:52:48,634 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 20:52:48,635 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 20:52:48,635 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 20:52:48,635 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 20:52:48,635 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 20:52:48,635 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 20:52:48,635 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_c2c88aad-f201-41a4-bc1e-e6d12ebb9f0f/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 -> 37028c56b7915050ee6a79b5e737b9e44bf7c3db [2018-10-26 20:52:48,660 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 20:52:48,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 20:52:48,674 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 20:52:48,675 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 20:52:48,675 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 20:52:48,676 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c2c88aad-f201-41a4-bc1e-e6d12ebb9f0f/bin-2019/uautomizer/../../sv-benchmarks/c/recursive/McCarthy91_false-unreach-call_true-no-overflow_true-termination.c [2018-10-26 20:52:48,726 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c2c88aad-f201-41a4-bc1e-e6d12ebb9f0f/bin-2019/uautomizer/data/1b937ebe5/fcb017c10b484971b597be3eeeceb1a1/FLAG080b55197 [2018-10-26 20:52:49,096 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 20:52:49,097 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c2c88aad-f201-41a4-bc1e-e6d12ebb9f0f/sv-benchmarks/c/recursive/McCarthy91_false-unreach-call_true-no-overflow_true-termination.c [2018-10-26 20:52:49,101 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c2c88aad-f201-41a4-bc1e-e6d12ebb9f0f/bin-2019/uautomizer/data/1b937ebe5/fcb017c10b484971b597be3eeeceb1a1/FLAG080b55197 [2018-10-26 20:52:49,112 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c2c88aad-f201-41a4-bc1e-e6d12ebb9f0f/bin-2019/uautomizer/data/1b937ebe5/fcb017c10b484971b597be3eeeceb1a1 [2018-10-26 20:52:49,115 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 20:52:49,116 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 20:52:49,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 20:52:49,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 20:52:49,120 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 20:52:49,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:52:49" (1/1) ... [2018-10-26 20:52:49,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@129663cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:52:49, skipping insertion in model container [2018-10-26 20:52:49,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:52:49" (1/1) ... [2018-10-26 20:52:49,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 20:52:49,149 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 20:52:49,265 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:52:49,267 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 20:52:49,277 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:52:49,288 INFO L193 MainTranslator]: Completed translation [2018-10-26 20:52:49,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:52:49 WrapperNode [2018-10-26 20:52:49,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 20:52:49,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 20:52:49,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 20:52:49,289 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 20:52:49,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:52:49" (1/1) ... [2018-10-26 20:52:49,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:52:49" (1/1) ... [2018-10-26 20:52:49,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:52:49" (1/1) ... [2018-10-26 20:52:49,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:52:49" (1/1) ... [2018-10-26 20:52:49,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:52:49" (1/1) ... [2018-10-26 20:52:49,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:52:49" (1/1) ... [2018-10-26 20:52:49,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:52:49" (1/1) ... [2018-10-26 20:52:49,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 20:52:49,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 20:52:49,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 20:52:49,309 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 20:52:49,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:52:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2c88aad-f201-41a4-bc1e-e6d12ebb9f0f/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 [2018-10-26 20:52:49,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 20:52:49,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 20:52:49,360 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2018-10-26 20:52:49,360 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 20:52:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 20:52:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-10-26 20:52:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2018-10-26 20:52:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 20:52:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 20:52:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 20:52:49,725 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 20:52:49,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:52:49 BoogieIcfgContainer [2018-10-26 20:52:49,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 20:52:49,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 20:52:49,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 20:52:49,730 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 20:52:49,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:52:49" (1/3) ... [2018-10-26 20:52:49,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f820b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:52:49, skipping insertion in model container [2018-10-26 20:52:49,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:52:49" (2/3) ... [2018-10-26 20:52:49,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f820b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:52:49, skipping insertion in model container [2018-10-26 20:52:49,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:52:49" (3/3) ... [2018-10-26 20:52:49,733 INFO L112 eAbstractionObserver]: Analyzing ICFG McCarthy91_false-unreach-call_true-no-overflow_true-termination.c [2018-10-26 20:52:49,741 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 20:52:49,746 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 20:52:49,756 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 20:52:49,781 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 20:52:49,781 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 20:52:49,781 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 20:52:49,781 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 20:52:49,782 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 20:52:49,782 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 20:52:49,782 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 20:52:49,782 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 20:52:49,782 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 20:52:49,796 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-10-26 20:52:49,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-26 20:52:49,801 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:52:49,802 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:52:49,804 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:52:49,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:52:49,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1590359645, now seen corresponding path program 1 times [2018-10-26 20:52:49,809 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:52:49,810 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:52:49,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:52:49,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:52:49,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:52:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:52:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:52:49,898 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 20:52:49,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:52:49 BoogieIcfgContainer [2018-10-26 20:52:49,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 20:52:49,920 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 20:52:49,920 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 20:52:49,920 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 20:52:49,921 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:52:49" (3/4) ... [2018-10-26 20:52:49,923 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 20:52:49,963 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c2c88aad-f201-41a4-bc1e-e6d12ebb9f0f/bin-2019/uautomizer/witness.graphml [2018-10-26 20:52:49,964 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 20:52:49,965 INFO L168 Benchmark]: Toolchain (without parser) took 849.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Free memory was 960.3 MB in the beginning and 1.2 GB in the end (delta: -213.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:52:49,967 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:52:49,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.92 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-10-26 20:52:49,968 INFO L168 Benchmark]: Boogie Preprocessor took 20.16 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:52:49,969 INFO L168 Benchmark]: RCFGBuilder took 416.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Free memory was 949.5 MB in the beginning and 1.2 GB in the end (delta: -238.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. [2018-10-26 20:52:49,969 INFO L168 Benchmark]: TraceAbstraction took 193.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-10-26 20:52:49,971 INFO L168 Benchmark]: Witness Printer took 43.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:52:49,973 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.92 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.16 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 416.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Free memory was 949.5 MB in the beginning and 1.2 GB in the end (delta: -238.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 193.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * Witness Printer took 43.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 30]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L25] int x = __VERIFIER_nondet_int(); [L26] CALL, EXPR f91(x) VAL [\old(x)=102] [L16] COND TRUE x > 100 [L17] RET return x -10; VAL [\old(x)=102, \result=92, x=102] [L26] EXPR f91(x) VAL [f91(x)=92, x=102] [L26] int result = f91(x); [L27] COND FALSE !(result == 91 || x > 102 && result == x - 10) VAL [result=92, x=102] [L30] __VERIFIER_error() VAL [result=92, x=102] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. UNSAFE Result, 0.1s 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=22occurred 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, 13 NumberOfCodeBlocks, 13 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...