./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i --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_04829724-38a0-48bd-886c-d7f061f85737/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_04829724-38a0-48bd-886c-d7f061f85737/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_04829724-38a0-48bd-886c-d7f061f85737/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_04829724-38a0-48bd-886c-d7f061f85737/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_04829724-38a0-48bd-886c-d7f061f85737/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_04829724-38a0-48bd-886c-d7f061f85737/bin-2019/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0ab550a6e9aa370752671d7ad69781384c889e75 .................................................................................................................................................................................................................................................................... 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 [2018-11-10 03:26:07,550 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:26:07,551 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:26:07,558 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:26:07,559 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:26:07,559 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:26:07,560 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:26:07,561 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:26:07,562 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:26:07,563 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:26:07,563 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:26:07,564 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:26:07,564 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:26:07,565 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:26:07,566 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:26:07,566 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:26:07,567 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:26:07,568 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:26:07,569 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:26:07,570 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:26:07,571 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:26:07,572 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:26:07,573 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:26:07,574 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:26:07,574 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:26:07,574 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:26:07,575 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:26:07,576 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:26:07,576 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:26:07,577 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:26:07,577 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:26:07,577 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:26:07,578 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:26:07,578 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:26:07,578 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:26:07,579 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:26:07,579 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_04829724-38a0-48bd-886c-d7f061f85737/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 03:26:07,586 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:26:07,586 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:26:07,586 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 03:26:07,586 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 03:26:07,587 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 03:26:07,587 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 03:26:07,587 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:26:07,587 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 03:26:07,588 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 03:26:07,588 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 03:26:07,588 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:26:07,588 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 03:26:07,588 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 03:26:07,588 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 03:26:07,589 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 03:26:07,589 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 03:26:07,589 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 03:26:07,589 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 03:26:07,589 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 03:26:07,589 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:26:07,590 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 03:26:07,590 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 03:26:07,590 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:26:07,590 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 03:26:07,590 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 03:26:07,590 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 03:26:07,590 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 03:26:07,591 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 03:26:07,591 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_04829724-38a0-48bd-886c-d7f061f85737/bin-2019/ukojak 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 -> Kojak 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 -> 0ab550a6e9aa370752671d7ad69781384c889e75 [2018-11-10 03:26:07,609 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:26:07,617 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:26:07,619 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:26:07,619 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:26:07,620 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:26:07,620 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_04829724-38a0-48bd-886c-d7f061f85737/bin-2019/ukojak/../../sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i [2018-11-10 03:26:07,656 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_04829724-38a0-48bd-886c-d7f061f85737/bin-2019/ukojak/data/9df190bf2/d1a6643ed85a44b48c60cdd6e5910c3d/FLAGda7894703 [2018-11-10 03:26:08,043 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:26:08,044 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_04829724-38a0-48bd-886c-d7f061f85737/sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i [2018-11-10 03:26:08,047 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_04829724-38a0-48bd-886c-d7f061f85737/bin-2019/ukojak/data/9df190bf2/d1a6643ed85a44b48c60cdd6e5910c3d/FLAGda7894703 [2018-11-10 03:26:08,057 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_04829724-38a0-48bd-886c-d7f061f85737/bin-2019/ukojak/data/9df190bf2/d1a6643ed85a44b48c60cdd6e5910c3d [2018-11-10 03:26:08,060 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:26:08,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 03:26:08,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:26:08,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:26:08,064 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:26:08,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:26:08" (1/1) ... [2018-11-10 03:26:08,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac897aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:08, skipping insertion in model container [2018-11-10 03:26:08,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:26:08" (1/1) ... [2018-11-10 03:26:08,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:26:08,084 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:26:08,179 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:26:08,181 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:26:08,190 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:26:08,200 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:26:08,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:08 WrapperNode [2018-11-10 03:26:08,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:26:08,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 03:26:08,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 03:26:08,201 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 03:26:08,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:08" (1/1) ... [2018-11-10 03:26:08,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:08" (1/1) ... [2018-11-10 03:26:08,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 03:26:08,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:26:08,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:26:08,227 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:26:08,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:08" (1/1) ... [2018-11-10 03:26:08,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:08" (1/1) ... [2018-11-10 03:26:08,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:08" (1/1) ... [2018-11-10 03:26:08,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:08" (1/1) ... [2018-11-10 03:26:08,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:08" (1/1) ... [2018-11-10 03:26:08,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:08" (1/1) ... [2018-11-10 03:26:08,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:08" (1/1) ... [2018-11-10 03:26:08,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:26:08,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:26:08,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:26:08,242 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:26:08,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:26:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04829724-38a0-48bd-886c-d7f061f85737/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2018-11-10 03:26:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:26:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:26:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 03:26:08,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 03:26:08,482 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:26:08,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:26:08 BoogieIcfgContainer [2018-11-10 03:26:08,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:26:08,483 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 03:26:08,483 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 03:26:08,492 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 03:26:08,492 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:26:08" (1/1) ... [2018-11-10 03:26:08,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:26:08,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:26:08,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2018-11-10 03:26:08,540 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2018-11-10 03:26:08,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 03:26:08,542 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:26:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:26:08,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:26:08,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:26:08,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2018-11-10 03:26:08,632 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2018-11-10 03:26:08,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 03:26:08,632 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:26:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:26:08,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:26:08,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:26:08,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 32 transitions. [2018-11-10 03:26:08,804 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2018-11-10 03:26:08,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 03:26:08,808 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:26:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:26:08,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:26:08,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:26:08,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 25 states and 34 transitions. [2018-11-10 03:26:08,924 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2018-11-10 03:26:08,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 03:26:08,924 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:26:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:26:09,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:26:09,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:26:09,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2018-11-10 03:26:09,363 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2018-11-10 03:26:09,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 03:26:09,363 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:26:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:26:09,398 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 03:26:09,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 03:26:09,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 26 transitions. [2018-11-10 03:26:09,562 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-11-10 03:26:09,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 03:26:09,562 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 03:26:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:26:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:26:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:26:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:26:09,604 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2018-11-10 03:26:09,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 03:26:09 ImpRootNode [2018-11-10 03:26:09,628 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 03:26:09,629 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 03:26:09,629 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 03:26:09,629 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 03:26:09,630 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:26:08" (3/4) ... [2018-11-10 03:26:09,631 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 03:26:09,674 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_04829724-38a0-48bd-886c-d7f061f85737/bin-2019/ukojak/witness.graphml [2018-11-10 03:26:09,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 03:26:09,675 INFO L168 Benchmark]: Toolchain (without parser) took 1615.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 959.3 MB in the beginning and 931.0 MB in the end (delta: 28.2 MB). Peak memory consumption was 138.9 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:09,677 INFO L168 Benchmark]: CDTParser took 0.11 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. [2018-11-10 03:26:09,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.29 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 947.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:09,678 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.54 ms. Allocated memory is still 1.0 GB. Free memory is still 947.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:26:09,678 INFO L168 Benchmark]: Boogie Preprocessor took 15.19 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:09,679 INFO L168 Benchmark]: RCFGBuilder took 240.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -153.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:09,680 INFO L168 Benchmark]: CodeCheck took 1145.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 933.7 MB in the end (delta: 164.6 MB). Peak memory consumption was 164.6 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:09,680 INFO L168 Benchmark]: Witness Printer took 45.89 ms. Allocated memory is still 1.1 GB. Free memory was 933.7 MB in the beginning and 931.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:26:09,683 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 20 locations, 1 error locations. UNSAFE Result, 1.0s OverallTime, 6 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 434 SDtfs, 110 SDslu, 140 SDs, 0 SdLazy, 518 SolverSat, 226 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 464 GetRequests, 422 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 2984 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 8/13 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int i=0, x=0, y=0; [L15] int n=__VERIFIER_nondet_int(); [L16] COND FALSE !(!(n>0)) [L17] i=0 [L17] COND TRUE i