./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/for_infinite_loop_1_true-unreach-call_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9b9ed975-e840-4d98-9a15-cc84a8e1025a/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9b9ed975-e840-4d98-9a15-cc84a8e1025a/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9b9ed975-e840-4d98-9a15-cc84a8e1025a/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9b9ed975-e840-4d98-9a15-cc84a8e1025a/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/for_infinite_loop_1_true-unreach-call_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9b9ed975-e840-4d98-9a15-cc84a8e1025a/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9b9ed975-e840-4d98-9a15-cc84a8e1025a/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 84ccfa3799e430dcbaead172aed01f5a507c9465 ................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:15:39,869 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:15:39,870 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:15:39,878 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:15:39,879 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:15:39,879 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:15:39,880 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:15:39,882 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:15:39,883 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:15:39,884 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:15:39,884 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:15:39,885 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:15:39,886 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:15:39,886 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:15:39,887 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:15:39,888 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:15:39,888 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:15:39,890 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:15:39,892 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:15:39,893 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:15:39,894 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:15:39,895 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:15:39,896 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:15:39,897 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:15:39,897 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:15:39,898 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:15:39,899 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:15:39,899 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:15:39,900 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:15:39,901 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:15:39,902 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:15:39,902 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:15:39,902 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:15:39,903 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:15:39,903 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:15:39,904 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:15:39,904 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9b9ed975-e840-4d98-9a15-cc84a8e1025a/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 13:15:39,915 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:15:39,915 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:15:39,916 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:15:39,916 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 13:15:39,916 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:15:39,916 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:15:39,917 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:15:39,917 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:15:39,917 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:15:39,918 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:15:39,918 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:15:39,918 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:15:39,918 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:15:39,918 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:15:39,918 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:15:39,918 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:15:39,918 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:15:39,919 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:15:39,919 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 13:15:39,919 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 13:15:39,919 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:15:39,919 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:15:39,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 13:15:39,919 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:15:39,920 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:15:39,920 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:15:39,920 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 13:15:39,920 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:15:39,920 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:15:39,920 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_9b9ed975-e840-4d98-9a15-cc84a8e1025a/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 -> 84ccfa3799e430dcbaead172aed01f5a507c9465 [2018-11-18 13:15:39,948 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:15:39,957 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:15:39,960 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:15:39,961 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:15:39,961 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:15:39,961 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9b9ed975-e840-4d98-9a15-cc84a8e1025a/bin-2019/ukojak/../../sv-benchmarks/c/loops/for_infinite_loop_1_true-unreach-call_false-termination.i [2018-11-18 13:15:40,007 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9b9ed975-e840-4d98-9a15-cc84a8e1025a/bin-2019/ukojak/data/b2712fe5c/a6b0c9a9664340b18192adfd0a310561/FLAG5a3eb9a1e [2018-11-18 13:15:40,362 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:15:40,363 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9b9ed975-e840-4d98-9a15-cc84a8e1025a/sv-benchmarks/c/loops/for_infinite_loop_1_true-unreach-call_false-termination.i [2018-11-18 13:15:40,368 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9b9ed975-e840-4d98-9a15-cc84a8e1025a/bin-2019/ukojak/data/b2712fe5c/a6b0c9a9664340b18192adfd0a310561/FLAG5a3eb9a1e [2018-11-18 13:15:40,779 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9b9ed975-e840-4d98-9a15-cc84a8e1025a/bin-2019/ukojak/data/b2712fe5c/a6b0c9a9664340b18192adfd0a310561 [2018-11-18 13:15:40,781 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:15:40,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:15:40,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:15:40,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:15:40,786 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:15:40,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:15:40" (1/1) ... [2018-11-18 13:15:40,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a709e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:40, skipping insertion in model container [2018-11-18 13:15:40,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:15:40" (1/1) ... [2018-11-18 13:15:40,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:15:40,810 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:15:40,921 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:15:40,923 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:15:40,932 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:15:40,942 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:15:40,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:40 WrapperNode [2018-11-18 13:15:40,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:15:40,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:15:40,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:15:40,943 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:15:40,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:40" (1/1) ... [2018-11-18 13:15:40,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:40" (1/1) ... [2018-11-18 13:15:40,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:15:40,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:15:40,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:15:40,967 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:15:40,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:40" (1/1) ... [2018-11-18 13:15:40,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:40" (1/1) ... [2018-11-18 13:15:40,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:40" (1/1) ... [2018-11-18 13:15:40,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:40" (1/1) ... [2018-11-18 13:15:40,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:40" (1/1) ... [2018-11-18 13:15:40,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:40" (1/1) ... [2018-11-18 13:15:40,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:40" (1/1) ... [2018-11-18 13:15:40,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:15:40,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:15:40,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:15:40,984 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:15:40,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:15:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9b9ed975-e840-4d98-9a15-cc84a8e1025a/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 [2018-11-18 13:15:41,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:15:41,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:15:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 13:15:41,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 13:15:41,316 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:15:41,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:15:41 BoogieIcfgContainer [2018-11-18 13:15:41,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:15:41,317 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 13:15:41,317 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 13:15:41,327 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 13:15:41,327 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:15:41" (1/1) ... [2018-11-18 13:15:41,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:15:41,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:15:41,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2018-11-18 13:15:41,371 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2018-11-18 13:15:41,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 13:15:41,375 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:15:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:15:41,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:15:41,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:15:41,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 14 transitions. [2018-11-18 13:15:41,479 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-18 13:15:41,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 13:15:41,479 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:15:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:15:41,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:15:41,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:15:41,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 21 transitions. [2018-11-18 13:15:41,639 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-18 13:15:41,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 13:15:41,639 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:15:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:15:41,749 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:15:42,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:15:42,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 12 transitions. [2018-11-18 13:15:42,128 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-18 13:15:42,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:15:42,129 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2018-11-18 13:15:42,135 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-18 13:15:42,154 INFO L579 CodeCheckObserver]: Invariant with dag size 3 [2018-11-18 13:15:42,160 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 13:15:42,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 01:15:42 ImpRootNode [2018-11-18 13:15:42,160 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 13:15:42,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:15:42,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:15:42,162 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:15:42,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:15:41" (3/4) ... [2018-11-18 13:15:42,165 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:15:42,170 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 13:15:42,173 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 13:15:42,173 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 13:15:42,174 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 13:15:42,207 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9b9ed975-e840-4d98-9a15-cc84a8e1025a/bin-2019/ukojak/witness.graphml [2018-11-18 13:15:42,207 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:15:42,207 INFO L168 Benchmark]: Toolchain (without parser) took 1425.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 958.6 MB in the beginning and 1.1 GB in the end (delta: -100.7 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2018-11-18 13:15:42,209 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:15:42,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.94 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:15:42,210 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.96 ms. Allocated memory is still 1.0 GB. Free memory was 947.8 MB in the beginning and 945.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:15:42,211 INFO L168 Benchmark]: Boogie Preprocessor took 17.00 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:15:42,211 INFO L168 Benchmark]: RCFGBuilder took 332.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:15:42,212 INFO L168 Benchmark]: CodeCheck took 843.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.4 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:15:42,212 INFO L168 Benchmark]: Witness Printer took 45.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:15:42,217 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, 17 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 4 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 100 SDtfs, 36 SDslu, 40 SDs, 0 SdLazy, 94 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 207 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 724 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 4/5 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 - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: x == 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 158.94 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.96 ms. Allocated memory is still 1.0 GB. Free memory was 947.8 MB in the beginning and 945.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.00 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 332.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * CodeCheck took 843.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.4 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB. * Witness Printer took 45.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...