./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-acceleration/underapprox_false-unreach-call1_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_d647c972-fd52-4c47-a4f7-342b4cb31fcf/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d647c972-fd52-4c47-a4f7-342b4cb31fcf/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d647c972-fd52-4c47-a4f7-342b4cb31fcf/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d647c972-fd52-4c47-a4f7-342b4cb31fcf/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/underapprox_false-unreach-call1_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_d647c972-fd52-4c47-a4f7-342b4cb31fcf/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d647c972-fd52-4c47-a4f7-342b4cb31fcf/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 0d29117e01c2d68b456be2ae55b4c10d8b73c290 ........................................................................................................................................................................................................................................................................... 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 10:09:43,078 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:09:43,079 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:09:43,085 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:09:43,085 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:09:43,086 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:09:43,087 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:09:43,088 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:09:43,089 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:09:43,090 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:09:43,091 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:09:43,091 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:09:43,092 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:09:43,092 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:09:43,093 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:09:43,094 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:09:43,094 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:09:43,095 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:09:43,097 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:09:43,098 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:09:43,098 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:09:43,099 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:09:43,101 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:09:43,101 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:09:43,101 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:09:43,102 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:09:43,102 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:09:43,103 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:09:43,104 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:09:43,104 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:09:43,104 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:09:43,105 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:09:43,105 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:09:43,105 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:09:43,106 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:09:43,106 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:09:43,107 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d647c972-fd52-4c47-a4f7-342b4cb31fcf/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 10:09:43,117 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:09:43,117 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:09:43,118 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 10:09:43,118 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 10:09:43,119 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 10:09:43,119 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 10:09:43,119 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:09:43,119 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 10:09:43,119 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 10:09:43,120 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 10:09:43,120 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:09:43,120 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 10:09:43,120 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 10:09:43,120 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 10:09:43,120 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 10:09:43,120 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:09:43,120 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 10:09:43,121 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 10:09:43,121 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 10:09:43,121 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:09:43,121 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 10:09:43,121 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 10:09:43,121 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:09:43,121 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 10:09:43,122 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 10:09:43,122 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 10:09:43,122 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 10:09:43,122 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 10:09:43,122 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_d647c972-fd52-4c47-a4f7-342b4cb31fcf/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 -> 0d29117e01c2d68b456be2ae55b4c10d8b73c290 [2018-11-10 10:09:43,143 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:09:43,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:09:43,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:09:43,155 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:09:43,155 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:09:43,156 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d647c972-fd52-4c47-a4f7-342b4cb31fcf/bin-2019/ukojak/../../sv-benchmarks/c/loop-acceleration/underapprox_false-unreach-call1_true-termination.i [2018-11-10 10:09:43,192 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d647c972-fd52-4c47-a4f7-342b4cb31fcf/bin-2019/ukojak/data/0c0889166/8c8acf41f40845969f3959902469e8fa/FLAG70cdc3d84 [2018-11-10 10:09:43,581 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:09:43,582 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d647c972-fd52-4c47-a4f7-342b4cb31fcf/sv-benchmarks/c/loop-acceleration/underapprox_false-unreach-call1_true-termination.i [2018-11-10 10:09:43,585 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d647c972-fd52-4c47-a4f7-342b4cb31fcf/bin-2019/ukojak/data/0c0889166/8c8acf41f40845969f3959902469e8fa/FLAG70cdc3d84 [2018-11-10 10:09:43,594 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d647c972-fd52-4c47-a4f7-342b4cb31fcf/bin-2019/ukojak/data/0c0889166/8c8acf41f40845969f3959902469e8fa [2018-11-10 10:09:43,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:09:43,598 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 10:09:43,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:09:43,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:09:43,600 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:09:43,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:09:43" (1/1) ... [2018-11-10 10:09:43,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb7591c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:09:43, skipping insertion in model container [2018-11-10 10:09:43,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:09:43" (1/1) ... [2018-11-10 10:09:43,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:09:43,619 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:09:43,715 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:09:43,717 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:09:43,727 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:09:43,736 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:09:43,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:09:43 WrapperNode [2018-11-10 10:09:43,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:09:43,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 10:09:43,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 10:09:43,737 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 10:09:43,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:09:43" (1/1) ... [2018-11-10 10:09:43,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:09:43" (1/1) ... [2018-11-10 10:09:43,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 10:09:43,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:09:43,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:09:43,756 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:09:43,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:09:43" (1/1) ... [2018-11-10 10:09:43,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:09:43" (1/1) ... [2018-11-10 10:09:43,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:09:43" (1/1) ... [2018-11-10 10:09:43,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:09:43" (1/1) ... [2018-11-10 10:09:43,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:09:43" (1/1) ... [2018-11-10 10:09:43,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:09:43" (1/1) ... [2018-11-10 10:09:43,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:09:43" (1/1) ... [2018-11-10 10:09:43,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:09:43,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:09:43,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:09:43,769 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:09:43,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:09:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d647c972-fd52-4c47-a4f7-342b4cb31fcf/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 10:09:43,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:09:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:09:43,969 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:09:43,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:09:43 BoogieIcfgContainer [2018-11-10 10:09:43,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:09:43,970 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 10:09:43,970 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 10:09:43,980 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 10:09:43,980 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:09:43" (1/1) ... [2018-11-10 10:09:43,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:09:44,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 10:09:44,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-11-10 10:09:44,013 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-11-10 10:09:44,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-10 10:09:44,015 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 10:09:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:09:44,074 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 10:09:44,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 10:09:44,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-11-10 10:09:44,081 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-11-10 10:09:44,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 10:09:44,081 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 10:09:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:09:44,115 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 10:09:44,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 10:09:44,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-11-10 10:09:44,136 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-11-10 10:09:44,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 10:09:44,136 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 10:09:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:09:44,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:09:44,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 10:09:44,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-11-10 10:09:44,270 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-10 10:09:44,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 10:09:44,271 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 10:09:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:09:44,319 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:09:44,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 10:09:44,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-11-10 10:09:44,393 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-11-10 10:09:44,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 10:09:44,393 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 10:09:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:09:44,443 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:09:44,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 10:09:44,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-11-10 10:09:44,544 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-11-10 10:09:44,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 10:09:44,545 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 10:09:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:09:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:09:44,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 10:09:44,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-11-10 10:09:44,680 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-11-10 10:09:44,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 10:09:44,680 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 10:09:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:09:44,727 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:09:44,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 10:09:44,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-11-10 10:09:44,829 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-11-10 10:09:44,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 10:09:44,830 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 10:09:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:09:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:09:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:09:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:09:44,890 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2018-11-10 10:09:44,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 10:09:44 ImpRootNode [2018-11-10 10:09:44,908 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 10:09:44,909 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:09:44,909 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:09:44,909 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:09:44,909 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:09:43" (3/4) ... [2018-11-10 10:09:44,912 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 10:09:44,949 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d647c972-fd52-4c47-a4f7-342b4cb31fcf/bin-2019/ukojak/witness.graphml [2018-11-10 10:09:44,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:09:44,950 INFO L168 Benchmark]: Toolchain (without parser) took 1353.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 954.9 MB in the beginning and 1.0 GB in the end (delta: -79.4 MB). Peak memory consumption was 89.4 MB. Max. memory is 11.5 GB. [2018-11-10 10:09:44,952 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:09:44,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.76 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 10:09:44,953 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.89 ms. Allocated memory is still 1.0 GB. Free memory is still 944.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:09:44,954 INFO L168 Benchmark]: Boogie Preprocessor took 12.35 ms. Allocated memory is still 1.0 GB. Free memory was 944.0 MB in the beginning and 941.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:09:44,955 INFO L168 Benchmark]: RCFGBuilder took 200.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 941.3 MB in the beginning and 1.2 GB in the end (delta: -213.9 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-10 10:09:44,955 INFO L168 Benchmark]: CodeCheck took 938.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 117.7 MB). Peak memory consumption was 117.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:09:44,956 INFO L168 Benchmark]: Witness Printer took 41.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-10 10:09:44,961 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 1 procedures, 12 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 8 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 640 SDtfs, 252 SDslu, 376 SDs, 0 SdLazy, 630 SolverSat, 378 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 445 GetRequests, 393 SyntacticMatches, 30 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 3626 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 0/70 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: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] unsigned int x = 0; [L10] unsigned int y = 1; [L11] COND TRUE x < 6 [L12] x++ [L13] y *= 2 [L11] COND TRUE x < 6 [L12] x++ [L13] y *= 2 [L11] COND TRUE x < 6 [L12] x++ [L13] y *= 2 [L11] COND TRUE x < 6 [L12] x++ [L13] y *= 2 [L11] COND TRUE x < 6 [L12] x++ [L13] y *= 2 [L11] COND TRUE x < 6 [L12] x++ [L13] y *= 2 [L11] COND FALSE !(x < 6) [L15] CALL __VERIFIER_assert(y != 64) [L3] COND TRUE !(cond) [L4] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 138.76 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.89 ms. Allocated memory is still 1.0 GB. Free memory is still 944.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.35 ms. Allocated memory is still 1.0 GB. Free memory was 944.0 MB in the beginning and 941.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 200.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 941.3 MB in the beginning and 1.2 GB in the end (delta: -213.9 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * CodeCheck took 938.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 117.7 MB). Peak memory consumption was 117.7 MB. Max. memory is 11.5 GB. * Witness Printer took 41.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...