./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0aa7eb8b-03a9-4946-88d6-525569e4646b/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0aa7eb8b-03a9-4946-88d6-525569e4646b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0aa7eb8b-03a9-4946-88d6-525569e4646b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0aa7eb8b-03a9-4946-88d6-525569e4646b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0aa7eb8b-03a9-4946-88d6-525569e4646b/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0aa7eb8b-03a9-4946-88d6-525569e4646b/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 0.1.24-678e011 [2019-11-20 10:54:54,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:54:54,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:54:54,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:54:54,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:54:54,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:54:54,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:54:54,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:54:54,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:54:54,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:54:54,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:54:54,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:54:54,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:54:54,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:54:54,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:54:54,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:54:54,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:54:54,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:54:54,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:54:54,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:54:54,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:54:54,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:54:54,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:54:54,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:54:54,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:54:54,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:54:54,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:54:54,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:54:54,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:54:54,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:54:54,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:54:54,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:54:54,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:54:54,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:54:54,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:54:54,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:54:54,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:54:54,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:54:54,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:54:54,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:54:54,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:54:54,083 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0aa7eb8b-03a9-4946-88d6-525569e4646b/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2019-11-20 10:54:54,109 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:54:54,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:54:54,121 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 10:54:54,121 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 10:54:54,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:54:54,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:54:54,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:54:54,122 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:54:54,123 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 10:54:54,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:54:54,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:54:54,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:54:54,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:54:54,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:54:54,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:54:54,124 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 10:54:54,124 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:54:54,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:54:54,125 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:54:54,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:54:54,125 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 10:54:54,126 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 10:54:54,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:54:54,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:54:54,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 10:54:54,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:54:54,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:54:54,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:54:54,128 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 10:54:54,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:54:54,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:54:54,129 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_0aa7eb8b-03a9-4946-88d6-525569e4646b/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 [2019-11-20 10:54:54,312 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:54:54,328 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:54:54,332 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:54:54,334 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:54:54,334 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:54:54,335 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0aa7eb8b-03a9-4946-88d6-525569e4646b/bin/ukojak/../../sv-benchmarks/c/bitvector/gcd_4.c [2019-11-20 10:54:54,404 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0aa7eb8b-03a9-4946-88d6-525569e4646b/bin/ukojak/data/67ad7274b/26d40c7504bf4d4d85282aacda66bc63/FLAGf69233f1a [2019-11-20 10:54:54,844 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:54:54,845 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0aa7eb8b-03a9-4946-88d6-525569e4646b/sv-benchmarks/c/bitvector/gcd_4.c [2019-11-20 10:54:54,851 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0aa7eb8b-03a9-4946-88d6-525569e4646b/bin/ukojak/data/67ad7274b/26d40c7504bf4d4d85282aacda66bc63/FLAGf69233f1a [2019-11-20 10:54:55,267 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0aa7eb8b-03a9-4946-88d6-525569e4646b/bin/ukojak/data/67ad7274b/26d40c7504bf4d4d85282aacda66bc63 [2019-11-20 10:54:55,270 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:54:55,271 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:54:55,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:54:55,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:54:55,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:54:55,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:54:55" (1/1) ... [2019-11-20 10:54:55,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca737a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:55, skipping insertion in model container [2019-11-20 10:54:55,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:54:55" (1/1) ... [2019-11-20 10:54:55,298 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:54:55,317 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:54:55,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:54:55,471 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:54:55,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:54:55,566 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:54:55,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:55 WrapperNode [2019-11-20 10:54:55,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:54:55,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:54:55,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:54:55,568 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:54:55,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:55" (1/1) ... [2019-11-20 10:54:55,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:55" (1/1) ... [2019-11-20 10:54:55,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:54:55,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:54:55,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:54:55,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:54:55,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:55" (1/1) ... [2019-11-20 10:54:55,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:55" (1/1) ... [2019-11-20 10:54:55,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:55" (1/1) ... [2019-11-20 10:54:55,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:55" (1/1) ... [2019-11-20 10:54:55,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:55" (1/1) ... [2019-11-20 10:54:55,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:55" (1/1) ... [2019-11-20 10:54:55,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:55" (1/1) ... [2019-11-20 10:54:55,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:54:55,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:54:55,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:54:55,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:54:55,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0aa7eb8b-03a9-4946-88d6-525569e4646b/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 10:54:55,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:54:55,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:54:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-20 10:54:55,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-20 10:54:56,035 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:54:56,035 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 10:54:56,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:54:56 BoogieIcfgContainer [2019-11-20 10:54:56,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:54:56,037 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 10:54:56,037 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 10:54:56,049 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 10:54:56,050 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:54:56" (1/1) ... [2019-11-20 10:54:56,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:54:56,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:54:56,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2019-11-20 10:54:56,104 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2019-11-20 10:54:56,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-20 10:54:56,106 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:54:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:56,279 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 10:54:56,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:54:56,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2019-11-20 10:54:56,351 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2019-11-20 10:54:56,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 10:54:56,351 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:54:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:56,393 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 10:54:56,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:54:56,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2019-11-20 10:54:56,509 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-11-20 10:54:56,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 10:54:56,513 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:54:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:56,537 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 10:54:56,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:54:56,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2019-11-20 10:54:56,760 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2019-11-20 10:54:56,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 10:54:56,760 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:54:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:56,827 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 10:54:56,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:54:56,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2019-11-20 10:54:56,873 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2019-11-20 10:54:56,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 10:54:56,874 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:54:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:56,940 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 10:54:57,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:54:57,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2019-11-20 10:54:57,147 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2019-11-20 10:54:57,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 10:54:57,147 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:54:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:57,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:54:57,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:54:57,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2019-11-20 10:54:57,390 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2019-11-20 10:54:57,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 10:54:57,391 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:54:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:57,405 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 10:54:57,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:54:57,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 32 states and 43 transitions. [2019-11-20 10:54:57,538 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2019-11-20 10:54:57,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 10:54:57,539 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:54:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:57,622 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:54:57,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:54:57,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 33 states and 44 transitions. [2019-11-20 10:54:57,806 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2019-11-20 10:54:57,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 10:54:57,807 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:54:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:57,901 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:54:58,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:54:58,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 37 states and 49 transitions. [2019-11-20 10:54:58,328 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2019-11-20 10:54:58,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 10:54:58,328 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:54:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:58,433 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:54:58,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:54:58,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 42 states and 55 transitions. [2019-11-20 10:54:58,847 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2019-11-20 10:54:58,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 10:54:58,848 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:54:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:58,877 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-20 10:54:58,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:54:58,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 43 states and 57 transitions. [2019-11-20 10:54:58,997 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2019-11-20 10:54:58,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 10:54:58,997 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:54:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:59,081 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-20 10:54:59,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:54:59,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 46 states and 61 transitions. [2019-11-20 10:54:59,285 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2019-11-20 10:54:59,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 10:54:59,286 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:54:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:54:59,419 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:55:00,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:55:00,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 57 states and 82 transitions. [2019-11-20 10:55:00,234 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2019-11-20 10:55:00,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 10:55:00,234 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:55:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:55:00,296 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:55:00,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:55:00,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 59 states and 85 transitions. [2019-11-20 10:55:00,460 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 85 transitions. [2019-11-20 10:55:00,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 10:55:00,460 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:55:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:55:00,483 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:55:00,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:55:00,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 61 states and 91 transitions. [2019-11-20 10:55:00,615 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 91 transitions. [2019-11-20 10:55:00,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 10:55:00,616 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:55:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:55:00,628 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-11-20 10:55:00,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:55:00,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 59 states and 85 transitions. [2019-11-20 10:55:00,769 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 85 transitions. [2019-11-20 10:55:00,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 10:55:00,770 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:55:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:55:00,805 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-11-20 10:55:00,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:55:00,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 57 states and 80 transitions. [2019-11-20 10:55:00,975 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 80 transitions. [2019-11-20 10:55:00,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 10:55:00,976 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:55:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:55:01,165 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:55:02,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:55:02,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 64 states and 95 transitions. [2019-11-20 10:55:02,320 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 95 transitions. [2019-11-20 10:55:02,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 10:55:02,321 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:55:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:55:02,468 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 8 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:55:02,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:55:02,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 68 states and 100 transitions. [2019-11-20 10:55:02,860 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2019-11-20 10:55:02,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 10:55:02,860 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:55:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:55:02,950 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:55:03,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:55:03,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 70 states and 103 transitions. [2019-11-20 10:55:03,549 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2019-11-20 10:55:03,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 10:55:03,550 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:55:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:55:03,734 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:55:04,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:55:04,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 72 states and 108 transitions. [2019-11-20 10:55:04,201 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 108 transitions. [2019-11-20 10:55:04,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 10:55:04,202 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:55:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:55:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:55:04,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:55:04,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 73 states and 109 transitions. [2019-11-20 10:55:04,723 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 109 transitions. [2019-11-20 10:55:04,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 10:55:04,724 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:55:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:55:05,025 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:55:05,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:55:05,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 77 states and 115 transitions. [2019-11-20 10:55:05,968 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 115 transitions. [2019-11-20 10:55:05,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 10:55:05,969 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:55:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:55:06,243 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:55:06,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:55:06,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 79 states and 121 transitions. [2019-11-20 10:55:06,867 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 121 transitions. [2019-11-20 10:55:06,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 10:55:06,867 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:55:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:55:07,105 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:55:07,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:55:07,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 33 states and 34 transitions. [2019-11-20 10:55:07,909 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2019-11-20 10:55:07,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 10:55:07,909 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 26 iterations. [2019-11-20 10:55:07,919 INFO L765 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2019-11-20 10:55:08,105 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-20 10:55:08,109 INFO L569 CodeCheckObserver]: Invariant with dag size 39 [2019-11-20 10:55:08,123 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-20 10:55:08,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 10:55:08 ImpRootNode [2019-11-20 10:55:08,124 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 10:55:08,125 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:55:08,125 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:55:08,125 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:55:08,126 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:54:56" (3/4) ... [2019-11-20 10:55:08,131 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 10:55:08,137 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2019-11-20 10:55:08,144 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-20 10:55:08,145 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 10:55:08,145 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 10:55:08,243 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0aa7eb8b-03a9-4946-88d6-525569e4646b/bin/ukojak/witness.graphml [2019-11-20 10:55:08,243 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:55:08,246 INFO L168 Benchmark]: Toolchain (without parser) took 12974.01 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 363.3 MB). Free memory was 951.4 MB in the beginning and 1.4 GB in the end (delta: -402.4 MB). Peak memory consumption was 401.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:55:08,247 INFO L168 Benchmark]: CDTParser took 0.27 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 10:55:08,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -204.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 10:55:08,248 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:55:08,248 INFO L168 Benchmark]: Boogie Preprocessor took 21.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-11-20 10:55:08,249 INFO L168 Benchmark]: RCFGBuilder took 411.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:55:08,249 INFO L168 Benchmark]: CodeCheck took 12087.70 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 163.1 MB). Free memory was 1.1 GB in the beginning and 879.8 MB in the end (delta: 250.9 MB). Peak memory consumption was 413.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:55:08,250 INFO L168 Benchmark]: Witness Printer took 118.87 ms. Allocated memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 39.8 MB). Free memory was 879.8 MB in the beginning and 1.4 GB in the end (delta: -474.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:55:08,254 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: 11.8s, OverallIterations: 26, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67108864 SDtfs, 149970178 SDslu, 33554432 SDs, 0 SdLazy, 634728084 SolverSat, 126243278 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4167 GetRequests, 3635 SyntacticMatches, 334 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22036 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 501 NumberOfCodeBlocks, 501 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 476 ConstructedInterpolants, 0 QuantifiedInterpolants, 77688 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 9 PerfectInterpolantSequences, 152/660 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: 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: 23]: 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: 12]: 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)) || ((a <= b + 9 && 3 * b + 18 <= 2 * a) && b + 18 <= 2 * a)) || ((2 * b + a <= 63 && 63 <= 2 * b + a) && b == 18)) || ((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 0.27 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 295.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -204.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 411.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * CodeCheck took 12087.70 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 163.1 MB). Free memory was 1.1 GB in the beginning and 879.8 MB in the end (delta: 250.9 MB). Peak memory consumption was 413.9 MB. Max. memory is 11.5 GB. * Witness Printer took 118.87 ms. Allocated memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 39.8 MB). Free memory was 879.8 MB in the beginning and 1.4 GB in the end (delta: -474.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...