./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/nest-if3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9afe68ef-a914-4464-b4b1-9df3118ecfd5/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9afe68ef-a914-4464-b4b1-9df3118ecfd5/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9afe68ef-a914-4464-b4b1-9df3118ecfd5/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9afe68ef-a914-4464-b4b1-9df3118ecfd5/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/nest-if3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9afe68ef-a914-4464-b4b1-9df3118ecfd5/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9afe68ef-a914-4464-b4b1-9df3118ecfd5/bin/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 67bb0790f696b3c18eb630bed2fc34fee971c82b ............................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:45:25,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:45:25,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:45:25,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:45:25,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:45:25,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:45:25,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:45:25,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:45:25,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:45:25,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:45:25,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:45:25,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:45:25,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:45:25,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:45:25,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:45:25,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:45:25,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:45:25,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:45:25,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:45:25,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:45:25,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:45:25,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:45:25,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:45:25,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:45:25,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:45:25,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:45:25,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:45:25,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:45:25,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:45:25,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:45:25,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:45:25,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:45:25,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:45:25,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:45:25,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:45:25,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:45:25,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:45:25,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:45:25,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:45:25,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:45:25,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:45:25,859 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9afe68ef-a914-4464-b4b1-9df3118ecfd5/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-26 02:45:25,883 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:45:25,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:45:25,884 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:45:25,884 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:45:25,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:45:25,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:45:25,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:45:25,885 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:45:25,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:45:25,885 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:45:25,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:45:25,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:45:25,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:45:25,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:45:25,886 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:45:25,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:45:25,887 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:45:25,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:45:25,887 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:45:25,887 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:45:25,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:45:25,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:45:25,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:45:25,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:45:25,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:45:25,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:45:25,888 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:45:25,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:45:25,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:45:25,889 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_9afe68ef-a914-4464-b4b1-9df3118ecfd5/bin/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 -> 67bb0790f696b3c18eb630bed2fc34fee971c82b [2019-11-26 02:45:26,051 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:45:26,063 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:45:26,066 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:45:26,067 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:45:26,068 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:45:26,069 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9afe68ef-a914-4464-b4b1-9df3118ecfd5/bin/ukojak/../../sv-benchmarks/c/loop-invgen/nest-if3.i [2019-11-26 02:45:26,123 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9afe68ef-a914-4464-b4b1-9df3118ecfd5/bin/ukojak/data/914a4c8b6/3852569af6f14b31b2967c5330b3dfa8/FLAGc19d2a21b [2019-11-26 02:45:26,505 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:45:26,505 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9afe68ef-a914-4464-b4b1-9df3118ecfd5/sv-benchmarks/c/loop-invgen/nest-if3.i [2019-11-26 02:45:26,510 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9afe68ef-a914-4464-b4b1-9df3118ecfd5/bin/ukojak/data/914a4c8b6/3852569af6f14b31b2967c5330b3dfa8/FLAGc19d2a21b [2019-11-26 02:45:26,930 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9afe68ef-a914-4464-b4b1-9df3118ecfd5/bin/ukojak/data/914a4c8b6/3852569af6f14b31b2967c5330b3dfa8 [2019-11-26 02:45:26,933 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:45:26,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:45:26,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:45:26,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:45:26,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:45:26,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:45:26" (1/1) ... [2019-11-26 02:45:26,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@162cf989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:26, skipping insertion in model container [2019-11-26 02:45:26,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:45:26" (1/1) ... [2019-11-26 02:45:26,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:45:26,961 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:45:27,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:45:27,119 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:45:27,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:45:27,233 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:45:27,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:27 WrapperNode [2019-11-26 02:45:27,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:45:27,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:45:27,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:45:27,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:45:27,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:27" (1/1) ... [2019-11-26 02:45:27,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:27" (1/1) ... [2019-11-26 02:45:27,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:45:27,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:45:27,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:45:27,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:45:27,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:27" (1/1) ... [2019-11-26 02:45:27,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:27" (1/1) ... [2019-11-26 02:45:27,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:27" (1/1) ... [2019-11-26 02:45:27,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:27" (1/1) ... [2019-11-26 02:45:27,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:27" (1/1) ... [2019-11-26 02:45:27,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:27" (1/1) ... [2019-11-26 02:45:27,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:27" (1/1) ... [2019-11-26 02:45:27,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:45:27,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:45:27,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:45:27,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:45:27,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9afe68ef-a914-4464-b4b1-9df3118ecfd5/bin/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 [2019-11-26 02:45:27,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:45:27,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:45:27,674 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:45:27,674 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-26 02:45:27,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:45:27 BoogieIcfgContainer [2019-11-26 02:45:27,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:45:27,676 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:45:27,676 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:45:27,687 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:45:27,688 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:45:27" (1/1) ... [2019-11-26 02:45:27,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:45:27,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:45:27,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2019-11-26 02:45:27,729 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2019-11-26 02:45:27,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:45:27,735 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:45:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:45:27,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:45:27,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:45:27,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 15 states and 23 transitions. [2019-11-26 02:45:27,996 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 23 transitions. [2019-11-26 02:45:27,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:45:27,996 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:45:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:45:28,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:45:28,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:45:28,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 18 states and 35 transitions. [2019-11-26 02:45:28,666 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 35 transitions. [2019-11-26 02:45:28,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:45:28,668 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:45:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:45:28,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:45:28,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:45:28,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 18 states and 34 transitions. [2019-11-26 02:45:28,903 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 34 transitions. [2019-11-26 02:45:28,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 02:45:28,903 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:45:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:45:29,058 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:45:29,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:45:29,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 20 states and 42 transitions. [2019-11-26 02:45:29,480 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 42 transitions. [2019-11-26 02:45:29,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:45:29,481 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:45:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:45:29,656 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:45:30,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:45:30,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 24 states and 55 transitions. [2019-11-26 02:45:30,234 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 55 transitions. [2019-11-26 02:45:30,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-26 02:45:30,235 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:45:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:45:30,416 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:45:30,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:45:31,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 25 states and 56 transitions. [2019-11-26 02:45:31,000 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 56 transitions. [2019-11-26 02:45:31,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 02:45:31,002 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:45:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:45:31,036 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-26 02:45:32,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:45:32,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 19 states and 38 transitions. [2019-11-26 02:45:32,101 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 38 transitions. [2019-11-26 02:45:32,101 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:45:32,101 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2019-11-26 02:45:32,108 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-11-26 02:45:32,230 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-26 02:45:32,233 INFO L569 CodeCheckObserver]: Invariant with dag size 22 [2019-11-26 02:45:32,239 INFO L569 CodeCheckObserver]: Invariant with dag size 13 [2019-11-26 02:45:32,241 INFO L569 CodeCheckObserver]: Invariant with dag size 10 [2019-11-26 02:45:32,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:45:32 ImpRootNode [2019-11-26 02:45:32,242 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:45:32,242 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:45:32,242 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:45:32,242 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:45:32,243 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:45:27" (3/4) ... [2019-11-26 02:45:32,246 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:45:32,253 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-11-26 02:45:32,253 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-26 02:45:32,299 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9afe68ef-a914-4464-b4b1-9df3118ecfd5/bin/ukojak/witness.graphml [2019-11-26 02:45:32,299 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:45:32,301 INFO L168 Benchmark]: Toolchain (without parser) took 5366.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.7 MB). Free memory was 950.1 MB in the beginning and 882.7 MB in the end (delta: 67.4 MB). Peak memory consumption was 287.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:45:32,302 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:45:32,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -199.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:45:32,303 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:45:32,303 INFO L168 Benchmark]: Boogie Preprocessor took 15.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:45:32,303 INFO L168 Benchmark]: RCFGBuilder took 391.71 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: 25.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:45:32,304 INFO L168 Benchmark]: CodeCheck took 4566.15 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.4 MB). Free memory was 1.1 GB in the beginning and 885.4 MB in the end (delta: 239.1 MB). Peak memory consumption was 301.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:45:32,305 INFO L168 Benchmark]: Witness Printer took 57.19 ms. Allocated memory is still 1.2 GB. Free memory was 885.4 MB in the beginning and 882.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:45:32,307 INFO L335 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. Result: SAFE, OverallTime: 4.3s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 640 SDtfs, 498 SDslu, 128 SDs, 0 SdLazy, 4832 SolverSat, 1034 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 951 GetRequests, 823 SyntacticMatches, 28 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3504 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 2906 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 10/36 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((((1 <= i && l + k < i + 1) && n + 2 <= l + k) || (((1 <= i && k < 1) && l + k < i + 1) && i <= l + k)) || ((1 <= i && 1 <= k) && 1 <= l)) || ((1 <= i && 1 <= l) && l + k < i) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((1 <= i && 1 <= l) && l + k < i + 1) || ((1 <= i && 1 <= k) && 1 <= l) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 <= l || n + 2 <= l + k * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 299.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -199.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 391.71 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: 25.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * CodeCheck took 4566.15 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.4 MB). Free memory was 1.1 GB in the beginning and 885.4 MB in the end (delta: 239.1 MB). Peak memory consumption was 301.5 MB. Max. memory is 11.5 GB. * Witness Printer took 57.19 ms. Allocated memory is still 1.2 GB. Free memory was 885.4 MB in the beginning and 882.7 MB 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...