./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/NetBSD_loop.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_f8a49fc6-f150-4bd5-b57b-c18bd22ccc4f/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f8a49fc6-f150-4bd5-b57b-c18bd22ccc4f/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f8a49fc6-f150-4bd5-b57b-c18bd22ccc4f/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f8a49fc6-f150-4bd5-b57b-c18bd22ccc4f/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f8a49fc6-f150-4bd5-b57b-c18bd22ccc4f/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f8a49fc6-f150-4bd5-b57b-c18bd22ccc4f/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 ca707ecc133af2ec0063556d89a3ce449d0860eb .................................................................................................................................................................................................................................................. 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 02:56:09,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:56:09,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:56:09,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:56:09,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:56:09,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:56:09,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:56:09,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:56:09,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:56:09,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:56:09,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:56:09,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:56:09,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:56:09,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:56:09,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:56:09,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:56:09,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:56:09,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:56:09,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:56:09,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:56:09,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:56:09,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:56:09,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:56:09,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:56:09,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:56:09,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:56:09,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:56:09,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:56:09,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:56:09,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:56:09,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:56:09,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:56:09,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:56:09,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:56:09,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:56:09,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:56:09,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:56:09,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:56:09,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:56:09,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:56:09,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:56:09,641 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f8a49fc6-f150-4bd5-b57b-c18bd22ccc4f/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-26 02:56:09,665 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:56:09,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:56:09,667 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:56:09,667 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:56:09,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:56:09,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:56:09,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:56:09,668 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:56:09,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:56:09,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:56:09,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:56:09,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:56:09,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:56:09,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:56:09,671 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:56:09,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:56:09,671 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:56:09,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:56:09,672 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:56:09,672 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:56:09,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:56:09,672 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:56:09,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:56:09,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:56:09,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:56:09,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:56:09,673 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:56:09,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:56:09,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:56:09,674 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_f8a49fc6-f150-4bd5-b57b-c18bd22ccc4f/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 -> ca707ecc133af2ec0063556d89a3ce449d0860eb [2019-11-26 02:56:09,846 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:56:09,860 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:56:09,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:56:09,864 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:56:09,865 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:56:09,866 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f8a49fc6-f150-4bd5-b57b-c18bd22ccc4f/bin/ukojak/../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i [2019-11-26 02:56:09,928 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f8a49fc6-f150-4bd5-b57b-c18bd22ccc4f/bin/ukojak/data/75082bb79/f3519b16aa67494eaafa4f4b5fd504c8/FLAG1672e41a2 [2019-11-26 02:56:10,325 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:56:10,325 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f8a49fc6-f150-4bd5-b57b-c18bd22ccc4f/sv-benchmarks/c/loop-invgen/NetBSD_loop.i [2019-11-26 02:56:10,331 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f8a49fc6-f150-4bd5-b57b-c18bd22ccc4f/bin/ukojak/data/75082bb79/f3519b16aa67494eaafa4f4b5fd504c8/FLAG1672e41a2 [2019-11-26 02:56:10,732 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f8a49fc6-f150-4bd5-b57b-c18bd22ccc4f/bin/ukojak/data/75082bb79/f3519b16aa67494eaafa4f4b5fd504c8 [2019-11-26 02:56:10,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:56:10,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:56:10,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:56:10,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:56:10,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:56:10,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:56:10" (1/1) ... [2019-11-26 02:56:10,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f3bb6fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:10, skipping insertion in model container [2019-11-26 02:56:10,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:56:10" (1/1) ... [2019-11-26 02:56:10,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:56:10,764 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:56:10,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:56:10,929 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:56:11,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:56:11,035 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:56:11,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:11 WrapperNode [2019-11-26 02:56:11,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:56:11,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:56:11,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:56:11,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:56:11,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:11" (1/1) ... [2019-11-26 02:56:11,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:11" (1/1) ... [2019-11-26 02:56:11,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:56:11,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:56:11,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:56:11,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:56:11,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:11" (1/1) ... [2019-11-26 02:56:11,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:11" (1/1) ... [2019-11-26 02:56:11,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:11" (1/1) ... [2019-11-26 02:56:11,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:11" (1/1) ... [2019-11-26 02:56:11,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:11" (1/1) ... [2019-11-26 02:56:11,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:11" (1/1) ... [2019-11-26 02:56:11,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:11" (1/1) ... [2019-11-26 02:56:11,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:56:11,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:56:11,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:56:11,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:56:11,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8a49fc6-f150-4bd5-b57b-c18bd22ccc4f/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 02:56:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:56:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:56:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-26 02:56:11,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-26 02:56:11,362 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:56:11,362 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-26 02:56:11,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:56:11 BoogieIcfgContainer [2019-11-26 02:56:11,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:56:11,364 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:56:11,364 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:56:11,385 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:56:11,386 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:56:11" (1/1) ... [2019-11-26 02:56:11,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:56:11,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:56:11,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2019-11-26 02:56:11,475 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2019-11-26 02:56:11,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:56:11,485 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:56:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:11,713 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 02:56:11,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:56:11,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 22 transitions. [2019-11-26 02:56:11,799 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-26 02:56:11,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 02:56:11,801 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:56:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:11,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:12,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:56:12,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 21 states and 29 transitions. [2019-11-26 02:56:12,011 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2019-11-26 02:56:12,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-26 02:56:12,012 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:56:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:12,063 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-26 02:56:12,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:56:12,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 22 states and 32 transitions. [2019-11-26 02:56:12,165 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2019-11-26 02:56:12,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-26 02:56:12,166 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:56:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:12,250 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-26 02:56:12,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:56:12,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 26 states and 38 transitions. [2019-11-26 02:56:12,498 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 38 transitions. [2019-11-26 02:56:12,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 02:56:12,500 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:56:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:12,587 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-26 02:56:12,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:56:12,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 23 states and 30 transitions. [2019-11-26 02:56:12,851 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2019-11-26 02:56:12,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-26 02:56:12,852 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:56:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:12,946 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-26 02:56:13,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:56:13,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 17 states and 23 transitions. [2019-11-26 02:56:13,617 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2019-11-26 02:56:13,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:56:13,618 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2019-11-26 02:56:13,625 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-11-26 02:56:13,670 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-26 02:56:13,674 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-26 02:56:13,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:56:13 ImpRootNode [2019-11-26 02:56:13,674 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:56:13,675 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:56:13,675 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:56:13,675 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:56:13,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:56:11" (3/4) ... [2019-11-26 02:56:13,678 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:56:13,682 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2019-11-26 02:56:13,685 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-26 02:56:13,686 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:56:13,686 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:56:13,730 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f8a49fc6-f150-4bd5-b57b-c18bd22ccc4f/bin/ukojak/witness.graphml [2019-11-26 02:56:13,730 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:56:13,733 INFO L168 Benchmark]: Toolchain (without parser) took 2996.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.9 MB). Free memory was 951.4 MB in the beginning and 949.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 203.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:13,733 INFO L168 Benchmark]: CDTParser took 0.26 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 02:56:13,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.9 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -246.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:13,734 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:56:13,735 INFO L168 Benchmark]: Boogie Preprocessor took 28.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:13,735 INFO L168 Benchmark]: RCFGBuilder took 265.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:13,736 INFO L168 Benchmark]: CodeCheck took 2310.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 949.9 MB in the end (delta: 224.5 MB). Peak memory consumption was 224.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:13,736 INFO L168 Benchmark]: Witness Printer took 56.08 ms. Allocated memory is still 1.2 GB. Free memory is still 949.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:56:13,739 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 2 procedures, 14 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 7, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 480 SDtfs, 160 SDslu, 0 SDs, 0 SdLazy, 1820 SolverSat, 564 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 891 GetRequests, 825 SyntacticMatches, 16 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 6121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 126/133 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: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 300.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.9 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -246.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 265.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * CodeCheck took 2310.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 949.9 MB in the end (delta: 224.5 MB). Peak memory consumption was 224.5 MB. Max. memory is 11.5 GB. * Witness Printer took 56.08 ms. Allocated memory is still 1.2 GB. Free memory is still 949.9 MB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...