./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c707f1d7-f1c9-4e22-8644-273e3a5b9b6b/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c707f1d7-f1c9-4e22-8644-273e3a5b9b6b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c707f1d7-f1c9-4e22-8644-273e3a5b9b6b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c707f1d7-f1c9-4e22-8644-273e3a5b9b6b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_4.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c707f1d7-f1c9-4e22-8644-273e3a5b9b6b/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c707f1d7-f1c9-4e22-8644-273e3a5b9b6b/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9918b49e0d76e4ce36b6a6760021b33460a8ae9b .......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:12:17,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:12:17,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:12:17,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:12:17,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:12:17,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:12:17,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:12:17,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:12:17,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:12:17,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:12:17,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:12:17,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:12:17,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:12:17,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:12:17,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:12:17,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:12:17,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:12:17,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:12:17,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:12:17,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:12:17,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:12:17,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:12:17,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:12:17,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:12:17,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:12:17,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:12:17,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:12:17,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:12:17,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:12:17,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:12:17,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:12:17,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:12:17,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:12:17,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:12:17,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:12:17,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:12:17,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:12:17,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:12:17,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:12:17,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:12:17,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:12:17,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c707f1d7-f1c9-4e22-8644-273e3a5b9b6b/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2019-10-22 10:12:17,722 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:12:17,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:12:17,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:12:17,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:12:17,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:12:17,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:12:17,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:12:17,730 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:12:17,730 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:12:17,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:12:17,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:12:17,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:12:17,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:12:17,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:12:17,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:12:17,731 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 10:12:17,731 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:12:17,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:12:17,732 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:12:17,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:12:17,732 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:12:17,732 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:12:17,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:12:17,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:12:17,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:12:17,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:12:17,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:12:17,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:12:17,733 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:12:17,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:12:17,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:12:17,734 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/working_dir_c707f1d7-f1c9-4e22-8644-273e3a5b9b6b/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 ! overflow) ) 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 -> 9918b49e0d76e4ce36b6a6760021b33460a8ae9b [2019-10-22 10:12:17,766 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:12:17,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:12:17,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:12:17,782 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:12:17,782 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:12:17,783 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c707f1d7-f1c9-4e22-8644-273e3a5b9b6b/bin/ukojak/../../sv-benchmarks/c/bitvector/gcd_4.c [2019-10-22 10:12:17,827 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c707f1d7-f1c9-4e22-8644-273e3a5b9b6b/bin/ukojak/data/8befdcfb3/e531265e2e6843b49a7c7db203c46fb6/FLAG463a4df0a [2019-10-22 10:12:18,203 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:12:18,203 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c707f1d7-f1c9-4e22-8644-273e3a5b9b6b/sv-benchmarks/c/bitvector/gcd_4.c [2019-10-22 10:12:18,208 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c707f1d7-f1c9-4e22-8644-273e3a5b9b6b/bin/ukojak/data/8befdcfb3/e531265e2e6843b49a7c7db203c46fb6/FLAG463a4df0a [2019-10-22 10:12:18,220 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c707f1d7-f1c9-4e22-8644-273e3a5b9b6b/bin/ukojak/data/8befdcfb3/e531265e2e6843b49a7c7db203c46fb6 [2019-10-22 10:12:18,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:12:18,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:12:18,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:12:18,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:12:18,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:12:18,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:12:18" (1/1) ... [2019-10-22 10:12:18,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de1d906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:18, skipping insertion in model container [2019-10-22 10:12:18,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:12:18" (1/1) ... [2019-10-22 10:12:18,236 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:12:18,250 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:12:18,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:12:18,423 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:12:18,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:12:18,540 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:12:18,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:18 WrapperNode [2019-10-22 10:12:18,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:12:18,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:12:18,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:12:18,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:12:18,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:18" (1/1) ... [2019-10-22 10:12:18,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:18" (1/1) ... [2019-10-22 10:12:18,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:12:18,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:12:18,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:12:18,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:12:18,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:18" (1/1) ... [2019-10-22 10:12:18,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:18" (1/1) ... [2019-10-22 10:12:18,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:18" (1/1) ... [2019-10-22 10:12:18,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:18" (1/1) ... [2019-10-22 10:12:18,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:18" (1/1) ... [2019-10-22 10:12:18,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:18" (1/1) ... [2019-10-22 10:12:18,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:18" (1/1) ... [2019-10-22 10:12:18,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:12:18,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:12:18,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:12:18,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:12:18,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c707f1d7-f1c9-4e22-8644-273e3a5b9b6b/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 [2019-10-22 10:12:18,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:12:18,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:12:18,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-22 10:12:18,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-22 10:12:18,867 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:12:18,868 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 10:12:18,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:18 BoogieIcfgContainer [2019-10-22 10:12:18,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:12:18,869 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:12:18,869 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:12:18,880 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:12:18,880 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:18" (1/1) ... [2019-10-22 10:12:18,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:12:18,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2019-10-22 10:12:18,952 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2019-10-22 10:12:18,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 10:12:18,959 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:19,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:19,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:19,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2019-10-22 10:12:19,126 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2019-10-22 10:12:19,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 10:12:19,126 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:19,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:19,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:19,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2019-10-22 10:12:19,225 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-10-22 10:12:19,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:12:19,229 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:19,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:19,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2019-10-22 10:12:19,333 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2019-10-22 10:12:19,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 10:12:19,333 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:19,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:19,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:19,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2019-10-22 10:12:19,401 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2019-10-22 10:12:19,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:12:19,401 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:19,469 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:19,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:19,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2019-10-22 10:12:19,648 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2019-10-22 10:12:19,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:12:19,648 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:19,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:19,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:19,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2019-10-22 10:12:19,848 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2019-10-22 10:12:19,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:12:19,849 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:19,860 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:12:19,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:19,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 32 states and 43 transitions. [2019-10-22 10:12:19,939 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2019-10-22 10:12:19,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 10:12:19,940 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:19,998 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:20,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:20,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 33 states and 44 transitions. [2019-10-22 10:12:20,120 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2019-10-22 10:12:20,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 10:12:20,120 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:20,188 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:20,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:20,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 37 states and 49 transitions. [2019-10-22 10:12:20,517 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2019-10-22 10:12:20,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 10:12:20,518 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:20,622 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:20,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:20,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 42 states and 55 transitions. [2019-10-22 10:12:20,957 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2019-10-22 10:12:20,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 10:12:20,958 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:20,983 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-22 10:12:21,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:21,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 43 states and 57 transitions. [2019-10-22 10:12:21,072 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2019-10-22 10:12:21,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 10:12:21,073 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:21,191 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-22 10:12:21,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:21,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 46 states and 61 transitions. [2019-10-22 10:12:21,373 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2019-10-22 10:12:21,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 10:12:21,374 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:21,513 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:22,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:22,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 57 states and 82 transitions. [2019-10-22 10:12:22,114 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2019-10-22 10:12:22,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 10:12:22,115 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:22,203 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:22,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:22,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 59 states and 85 transitions. [2019-10-22 10:12:22,331 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 85 transitions. [2019-10-22 10:12:22,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 10:12:22,332 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:22,355 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:22,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:22,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 61 states and 91 transitions. [2019-10-22 10:12:22,505 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 91 transitions. [2019-10-22 10:12:22,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 10:12:22,506 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:22,517 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-22 10:12:22,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:22,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 59 states and 85 transitions. [2019-10-22 10:12:22,617 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 85 transitions. [2019-10-22 10:12:22,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 10:12:22,618 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:22,651 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-22 10:12:22,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:22,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 57 states and 80 transitions. [2019-10-22 10:12:22,753 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 80 transitions. [2019-10-22 10:12:22,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 10:12:22,754 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:22,881 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:23,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:23,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 64 states and 95 transitions. [2019-10-22 10:12:23,708 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 95 transitions. [2019-10-22 10:12:23,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 10:12:23,709 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:23,818 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 8 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:24,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:24,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 68 states and 100 transitions. [2019-10-22 10:12:24,086 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2019-10-22 10:12:24,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 10:12:24,090 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:24,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:24,163 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:24,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:24,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 70 states and 103 transitions. [2019-10-22 10:12:24,551 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2019-10-22 10:12:24,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 10:12:24,551 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:24,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:24,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 72 states and 108 transitions. [2019-10-22 10:12:24,976 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 108 transitions. [2019-10-22 10:12:24,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 10:12:24,976 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:25,091 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:25,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:25,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 73 states and 109 transitions. [2019-10-22 10:12:25,302 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 109 transitions. [2019-10-22 10:12:25,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 10:12:25,303 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:25,496 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:26,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:26,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 77 states and 115 transitions. [2019-10-22 10:12:26,236 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 115 transitions. [2019-10-22 10:12:26,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 10:12:26,236 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:26,441 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:26,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:26,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 79 states and 121 transitions. [2019-10-22 10:12:26,879 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 121 transitions. [2019-10-22 10:12:26,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 10:12:26,879 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:27,152 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:28,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:28,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 33 states and 34 transitions. [2019-10-22 10:12:28,185 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2019-10-22 10:12:28,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:12:28,185 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 26 iterations. [2019-10-22 10:12:28,193 INFO L771 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2019-10-22 10:12:28,281 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:12:28,284 INFO L575 CodeCheckObserver]: Invariant with dag size 39 [2019-10-22 10:12:28,292 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:12:28,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:12:28 ImpRootNode [2019-10-22 10:12:28,292 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:12:28,293 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:12:28,293 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:12:28,293 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:12:28,293 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:18" (3/4) ... [2019-10-22 10:12:28,297 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:12:28,301 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2019-10-22 10:12:28,305 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-10-22 10:12:28,305 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 10:12:28,305 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 10:12:28,346 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c707f1d7-f1c9-4e22-8644-273e3a5b9b6b/bin/ukojak/witness.graphml [2019-10-22 10:12:28,346 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:12:28,348 INFO L168 Benchmark]: Toolchain (without parser) took 10124.91 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 304.6 MB). Free memory was 941.8 MB in the beginning and 825.8 MB in the end (delta: 116.0 MB). Peak memory consumption was 420.6 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:28,349 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:12:28,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -200.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:28,350 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:28,350 INFO L168 Benchmark]: Boogie Preprocessor took 29.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:28,350 INFO L168 Benchmark]: RCFGBuilder took 271.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:28,351 INFO L168 Benchmark]: CodeCheck took 9423.09 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.0 MB). Free memory was 1.1 GB in the beginning and 828.9 MB in the end (delta: 276.4 MB). Peak memory consumption was 438.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:28,351 INFO L168 Benchmark]: Witness Printer took 53.78 ms. Allocated memory is still 1.3 GB. Free memory was 828.9 MB in the beginning and 825.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:28,353 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, 30 locations, 8 error locations. Result: SAFE, OverallTime: 9.2s, OverallIterations: 26, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67108864 SDtfs, 149970188 SDslu, 33554432 SDs, 0 SdLazy, 634728128 SolverSat, 126243288 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4167 GetRequests, 3625 SyntacticMatches, 332 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25113 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 501 NumberOfCodeBlocks, 501 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 476 ConstructedInterpolants, 0 QuantifiedInterpolants, 77416 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 9 PerfectInterpolantSequences, 152/661 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: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((((a == 63 && b == 18) || ((63 <= b + a && b == 18) && b + a <= 63)) || ((b == 18 && 63 <= 3 * b + a) && 3 * b + a <= 63)) || ((2 * b + a <= 63 && 63 <= 2 * b + a) && b == 18)) || ((a <= b + 9 && b + 18 <= 2 * a) && 3 * b + 9 <= a)) || ((b <= a && a + 8 < 2 * b) && b <= 9) - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 317.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -200.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 271.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * CodeCheck took 9423.09 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.0 MB). Free memory was 1.1 GB in the beginning and 828.9 MB in the end (delta: 276.4 MB). Peak memory consumption was 438.4 MB. Max. memory is 11.5 GB. * Witness Printer took 53.78 ms. Allocated memory is still 1.3 GB. Free memory was 828.9 MB in the beginning and 825.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...