./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark11_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_02bb8ea3-0c7d-433b-9963-5aa762d9c645/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_02bb8ea3-0c7d-433b-9963-5aa762d9c645/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_02bb8ea3-0c7d-433b-9963-5aa762d9c645/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_02bb8ea3-0c7d-433b-9963-5aa762d9c645/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark11_linear.i -s /tmp/vcloud-vcloud-master/worker/run_dir_02bb8ea3-0c7d-433b-9963-5aa762d9c645/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_02bb8ea3-0c7d-433b-9963-5aa762d9c645/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7cade2448c0840b34de4fc0011fce849b7a398d5 ............................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:37:26,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:37:26,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:37:26,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:37:26,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:37:26,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:37:26,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:37:26,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:37:26,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:37:26,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:37:26,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:37:26,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:37:26,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:37:26,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:37:26,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:37:26,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:37:26,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:37:26,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:37:26,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:37:26,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:37:26,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:37:26,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:37:26,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:37:26,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:37:26,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:37:26,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:37:26,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:37:26,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:37:26,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:37:26,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:37:26,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:37:26,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:37:26,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:37:26,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:37:26,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:37:26,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:37:26,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:37:26,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:37:26,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:37:26,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:37:26,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:37:26,833 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_02bb8ea3-0c7d-433b-9963-5aa762d9c645/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:37:26,884 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:37:26,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:37:26,886 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:37:26,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:37:26,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:37:26,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:37:26,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:37:26,889 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:37:26,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:37:26,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:37:26,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:37:26,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:37:26,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:37:26,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:37:26,892 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:37:26,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:37:26,892 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:37:26,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:37:26,893 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:37:26,893 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:37:26,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:37:26,894 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:37:26,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:37:26,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:37:26,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:37:26,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:37:26,895 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:37:26,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:37:26,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:37:26,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_02bb8ea3-0c7d-433b-9963-5aa762d9c645/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_02bb8ea3-0c7d-433b-9963-5aa762d9c645/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cade2448c0840b34de4fc0011fce849b7a398d5 [2020-11-28 04:37:27,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:37:27,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:37:27,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:37:27,269 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:37:27,270 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:37:27,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_02bb8ea3-0c7d-433b-9963-5aa762d9c645/bin/ukojak/../../sv-benchmarks/c/loop-zilu/benchmark11_linear.i [2020-11-28 04:37:27,372 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02bb8ea3-0c7d-433b-9963-5aa762d9c645/bin/ukojak/data/69243e2aa/437c980d4cf54149979694e80b46ec93/FLAG5cf464bb5 [2020-11-28 04:37:28,012 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:37:28,013 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_02bb8ea3-0c7d-433b-9963-5aa762d9c645/sv-benchmarks/c/loop-zilu/benchmark11_linear.i [2020-11-28 04:37:28,020 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02bb8ea3-0c7d-433b-9963-5aa762d9c645/bin/ukojak/data/69243e2aa/437c980d4cf54149979694e80b46ec93/FLAG5cf464bb5 [2020-11-28 04:37:28,378 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_02bb8ea3-0c7d-433b-9963-5aa762d9c645/bin/ukojak/data/69243e2aa/437c980d4cf54149979694e80b46ec93 [2020-11-28 04:37:28,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:37:28,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:37:28,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:37:28,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:37:28,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:37:28,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:28" (1/1) ... [2020-11-28 04:37:28,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a2fa826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:28, skipping insertion in model container [2020-11-28 04:37:28,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:28" (1/1) ... [2020-11-28 04:37:28,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:37:28,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:37:28,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:37:28,635 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:37:28,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:37:28,680 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:37:28,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:28 WrapperNode [2020-11-28 04:37:28,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:37:28,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:37:28,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:37:28,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:37:28,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:28" (1/1) ... [2020-11-28 04:37:28,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:28" (1/1) ... [2020-11-28 04:37:28,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:37:28,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:37:28,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:37:28,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:37:28,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:28" (1/1) ... [2020-11-28 04:37:28,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:28" (1/1) ... [2020-11-28 04:37:28,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:28" (1/1) ... [2020-11-28 04:37:28,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:28" (1/1) ... [2020-11-28 04:37:28,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:28" (1/1) ... [2020-11-28 04:37:28,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:28" (1/1) ... [2020-11-28 04:37:28,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:28" (1/1) ... [2020-11-28 04:37:28,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:37:28,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:37:28,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:37:28,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:37:28,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02bb8ea3-0c7d-433b-9963-5aa762d9c645/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 [2020-11-28 04:37:28,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:37:28,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:37:28,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:37:28,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:37:29,095 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:37:29,095 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 04:37:29,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:29 BoogieIcfgContainer [2020-11-28 04:37:29,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:37:29,098 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:37:29,098 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:37:29,109 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:37:29,109 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:29" (1/1) ... [2020-11-28 04:37:29,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:37:29,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:29,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2020-11-28 04:37:29,152 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2020-11-28 04:37:29,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:37:29,155 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:29,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:29,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:29,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2020-11-28 04:37:29,440 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2020-11-28 04:37:29,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:37:29,440 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:29,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:29,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:29,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2020-11-28 04:37:29,661 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-11-28 04:37:29,661 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:37:29,662 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2020-11-28 04:37:29,667 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:37:29,695 INFO L569 CodeCheckObserver]: Invariant with dag size 5 [2020-11-28 04:37:29,703 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:37:29,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:37:29 ImpRootNode [2020-11-28 04:37:29,704 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:37:29,714 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:37:29,714 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:37:29,714 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:37:29,715 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:29" (3/4) ... [2020-11-28 04:37:29,718 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:37:29,731 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-28 04:37:29,731 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:37:29,732 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:37:29,732 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:37:29,811 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_02bb8ea3-0c7d-433b-9963-5aa762d9c645/bin/ukojak/witness.graphml [2020-11-28 04:37:29,812 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:37:29,813 INFO L168 Benchmark]: Toolchain (without parser) took 1429.51 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 52.5 MB in the beginning and 82.2 MB in the end (delta: -29.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:29,814 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 92.3 MB. Free memory was 68.5 MB in the beginning and 68.4 MB in the end (delta: 109.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:29,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.54 ms. Allocated memory is still 92.3 MB. Free memory was 52.4 MB in the beginning and 63.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:29,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.52 ms. Allocated memory is still 92.3 MB. Free memory was 63.0 MB in the beginning and 61.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:29,815 INFO L168 Benchmark]: Boogie Preprocessor took 39.71 ms. Allocated memory is still 92.3 MB. Free memory was 61.6 MB in the beginning and 60.6 MB in the end (delta: 961.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:29,816 INFO L168 Benchmark]: RCFGBuilder took 330.72 ms. Allocated memory is still 92.3 MB. Free memory was 60.6 MB in the beginning and 47.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:29,817 INFO L168 Benchmark]: CodeCheck took 606.39 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 47.7 MB in the beginning and 84.8 MB in the end (delta: -37.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:29,817 INFO L168 Benchmark]: Witness Printer took 98.02 ms. Allocated memory is still 117.4 MB. Free memory was 84.8 MB in the beginning and 82.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:29,820 INFO L339 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, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 22 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 147 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 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: 11]: 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: 23]: Loop Invariant Derived loop invariant: x < n + 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 92.3 MB. Free memory was 68.5 MB in the beginning and 68.4 MB in the end (delta: 109.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 282.54 ms. Allocated memory is still 92.3 MB. Free memory was 52.4 MB in the beginning and 63.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.52 ms. Allocated memory is still 92.3 MB. Free memory was 63.0 MB in the beginning and 61.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.71 ms. Allocated memory is still 92.3 MB. Free memory was 61.6 MB in the beginning and 60.6 MB in the end (delta: 961.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 330.72 ms. Allocated memory is still 92.3 MB. Free memory was 60.6 MB in the beginning and 47.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 606.39 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 47.7 MB in the beginning and 84.8 MB in the end (delta: -37.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 98.02 ms. Allocated memory is still 117.4 MB. Free memory was 84.8 MB in the beginning and 82.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...