./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/underapprox_2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e861a340-a923-4a5f-a0a4-23613fb681f2/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e861a340-a923-4a5f-a0a4-23613fb681f2/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e861a340-a923-4a5f-a0a4-23613fb681f2/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e861a340-a923-4a5f-a0a4-23613fb681f2/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/underapprox_2-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e861a340-a923-4a5f-a0a4-23613fb681f2/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e861a340-a923-4a5f-a0a4-23613fb681f2/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 1ca0873bbf5698fb1752ac7aba535da1c4a773e2 ..................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 01:51:21,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:51:21,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:51:21,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:51:21,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:51:21,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:51:21,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:51:21,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:51:21,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:51:21,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:51:21,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:51:21,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:51:21,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:51:21,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:51:21,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:51:21,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:51:21,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:51:21,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:51:21,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:51:21,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:51:21,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:51:21,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:51:21,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:51:21,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:51:21,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:51:21,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:51:21,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:51:21,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:51:21,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:51:21,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:51:21,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:51:21,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:51:21,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:51:21,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:51:21,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:51:21,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:51:21,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:51:21,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:51:21,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:51:21,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:51:21,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:51:21,710 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e861a340-a923-4a5f-a0a4-23613fb681f2/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-20 01:51:21,722 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:51:21,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:51:21,723 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 01:51:21,723 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 01:51:21,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:51:21,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:51:21,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:51:21,725 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:51:21,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:51:21,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:51:21,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:51:21,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 01:51:21,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:51:21,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 01:51:21,726 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:51:21,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:51:21,727 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:51:21,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 01:51:21,727 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 01:51:21,727 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 01:51:21,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:51:21,728 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:51:21,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 01:51:21,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:51:21,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:51:21,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 01:51:21,729 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 01:51:21,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 01:51:21,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 01:51:21,729 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_e861a340-a923-4a5f-a0a4-23613fb681f2/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 -> 1ca0873bbf5698fb1752ac7aba535da1c4a773e2 [2019-11-20 01:51:21,868 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:51:21,878 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:51:21,881 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:51:21,883 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:51:21,883 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:51:21,884 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e861a340-a923-4a5f-a0a4-23613fb681f2/bin/ukojak/../../sv-benchmarks/c/loop-acceleration/underapprox_2-2.c [2019-11-20 01:51:21,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e861a340-a923-4a5f-a0a4-23613fb681f2/bin/ukojak/data/4db377ae4/bfd33fff352c44d4a333831cf41f7e9f/FLAG752c9263a [2019-11-20 01:51:22,347 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:51:22,348 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e861a340-a923-4a5f-a0a4-23613fb681f2/sv-benchmarks/c/loop-acceleration/underapprox_2-2.c [2019-11-20 01:51:22,353 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e861a340-a923-4a5f-a0a4-23613fb681f2/bin/ukojak/data/4db377ae4/bfd33fff352c44d4a333831cf41f7e9f/FLAG752c9263a [2019-11-20 01:51:22,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e861a340-a923-4a5f-a0a4-23613fb681f2/bin/ukojak/data/4db377ae4/bfd33fff352c44d4a333831cf41f7e9f [2019-11-20 01:51:22,371 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:51:22,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:51:22,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:51:22,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:51:22,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:51:22,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:51:22" (1/1) ... [2019-11-20 01:51:22,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68f83435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:22, skipping insertion in model container [2019-11-20 01:51:22,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:51:22" (1/1) ... [2019-11-20 01:51:22,390 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:51:22,404 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:51:22,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:51:22,540 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:51:22,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:51:22,634 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:51:22,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:22 WrapperNode [2019-11-20 01:51:22,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:51:22,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:51:22,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:51:22,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:51:22,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:22" (1/1) ... [2019-11-20 01:51:22,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:22" (1/1) ... [2019-11-20 01:51:22,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:51:22,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:51:22,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:51:22,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:51:22,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:22" (1/1) ... [2019-11-20 01:51:22,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:22" (1/1) ... [2019-11-20 01:51:22,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:22" (1/1) ... [2019-11-20 01:51:22,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:22" (1/1) ... [2019-11-20 01:51:22,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:22" (1/1) ... [2019-11-20 01:51:22,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:22" (1/1) ... [2019-11-20 01:51:22,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:22" (1/1) ... [2019-11-20 01:51:22,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:51:22,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:51:22,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:51:22,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:51:22,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:51:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e861a340-a923-4a5f-a0a4-23613fb681f2/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 [2019-11-20 01:51:22,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:51:22,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:51:22,934 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:51:22,934 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 01:51:22,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:51:22 BoogieIcfgContainer [2019-11-20 01:51:22,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:51:22,936 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 01:51:22,936 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 01:51:22,957 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 01:51:22,957 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:51:22" (1/1) ... [2019-11-20 01:51:22,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:51:23,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:51:23,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2019-11-20 01:51:23,056 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2019-11-20 01:51:23,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 01:51:23,058 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:51:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:51:23,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:51:23,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:51:23,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-20 01:51:23,271 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-20 01:51:23,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 01:51:23,272 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:51:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:51:23,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:51:23,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:51:23,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-20 01:51:23,425 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-20 01:51:23,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 01:51:23,426 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:51:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:51:23,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:51:23,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:51:23,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-20 01:51:23,578 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-20 01:51:23,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 01:51:23,578 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:51:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:51:23,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:51:23,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:51:23,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-11-20 01:51:23,768 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-11-20 01:51:23,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 01:51:23,769 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:51:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:51:23,887 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:51:23,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:51:23,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-11-20 01:51:23,968 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-11-20 01:51:23,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 01:51:23,969 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:51:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:51:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:51:24,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:51:24,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-11-20 01:51:24,220 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-11-20 01:51:24,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 01:51:24,220 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:51:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:51:24,388 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:51:24,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:51:24,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-11-20 01:51:24,553 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-11-20 01:51:24,553 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 01:51:24,554 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2019-11-20 01:51:24,562 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-11-20 01:51:24,618 INFO L569 CodeCheckObserver]: Invariant with dag size 34 [2019-11-20 01:51:24,638 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-20 01:51:24,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 01:51:24 ImpRootNode [2019-11-20 01:51:24,638 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 01:51:24,639 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:51:24,639 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:51:24,639 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:51:24,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:51:22" (3/4) ... [2019-11-20 01:51:24,644 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 01:51:24,654 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-20 01:51:24,654 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 01:51:24,715 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e861a340-a923-4a5f-a0a4-23613fb681f2/bin/ukojak/witness.graphml [2019-11-20 01:51:24,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:51:24,718 INFO L168 Benchmark]: Toolchain (without parser) took 2345.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 946.1 MB in the beginning and 947.3 MB in the end (delta: -1.3 MB). Peak memory consumption was 115.6 MB. Max. memory is 11.5 GB. [2019-11-20 01:51:24,718 INFO L168 Benchmark]: CDTParser took 0.22 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. [2019-11-20 01:51:24,721 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 01:51:24,724 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.20 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:51:24,724 INFO L168 Benchmark]: Boogie Preprocessor took 12.95 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:51:24,725 INFO L168 Benchmark]: RCFGBuilder took 262.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-11-20 01:51:24,725 INFO L168 Benchmark]: CodeCheck took 1702.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 952.7 MB in the end (delta: 142.0 MB). Peak memory consumption was 142.0 MB. Max. memory is 11.5 GB. [2019-11-20 01:51:24,726 INFO L168 Benchmark]: Witness Printer took 76.98 ms. Allocated memory is still 1.1 GB. Free memory was 952.7 MB in the beginning and 947.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:51:24,728 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, 7 locations, 1 error locations. Result: SAFE, OverallTime: 1.5s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 192 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 772 SolverSat, 764 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 319 GetRequests, 255 SyntacticMatches, 36 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 1693 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/56 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: 14]: Loop Invariant Derived loop invariant: ((((((x <= 3 && 2 < x) || (x <= 4 && 3 < x)) || (x <= 0 && 0 <= x)) || (4 < x && x <= 5)) || (x <= 1 && 0 < x)) || (5 < x && x <= 4294967296 * (x / 4294967296) + 6)) || (1 < x && x <= 2) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 259.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.20 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.95 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 262.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * CodeCheck took 1702.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 952.7 MB in the end (delta: 142.0 MB). Peak memory consumption was 142.0 MB. Max. memory is 11.5 GB. * Witness Printer took 76.98 ms. Allocated memory is still 1.1 GB. Free memory was 952.7 MB in the beginning and 947.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...