./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 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_02b78173-2d6d-475d-b684-387cc48bf82c/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_02b78173-2d6d-475d-b684-387cc48bf82c/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_02b78173-2d6d-475d-b684-387cc48bf82c/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_02b78173-2d6d-475d-b684-387cc48bf82c/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_02b78173-2d6d-475d-b684-387cc48bf82c/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_02b78173-2d6d-475d-b684-387cc48bf82c/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 9c20edfd7ede05443471560aa2c7be34d4e8c171 ............................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-03 11:06:20,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 11:06:20,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 11:06:20,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 11:06:20,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 11:06:20,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 11:06:20,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 11:06:20,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 11:06:20,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 11:06:20,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 11:06:20,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 11:06:20,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 11:06:20,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 11:06:20,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 11:06:20,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 11:06:20,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 11:06:20,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 11:06:20,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 11:06:20,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 11:06:21,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 11:06:21,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 11:06:21,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 11:06:21,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 11:06:21,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 11:06:21,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 11:06:21,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 11:06:21,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 11:06:21,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 11:06:21,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 11:06:21,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 11:06:21,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 11:06:21,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 11:06:21,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 11:06:21,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 11:06:21,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 11:06:21,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 11:06:21,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 11:06:21,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 11:06:21,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 11:06:21,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 11:06:21,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 11:06:21,033 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_02b78173-2d6d-475d-b684-387cc48bf82c/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-12-03 11:06:21,066 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 11:06:21,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 11:06:21,068 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 11:06:21,068 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-03 11:06:21,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 11:06:21,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 11:06:21,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 11:06:21,070 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 11:06:21,070 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 11:06:21,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 11:06:21,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 11:06:21,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 11:06:21,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 11:06:21,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 11:06:21,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 11:06:21,072 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 11:06:21,073 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 11:06:21,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 11:06:21,073 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 11:06:21,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 11:06:21,074 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-03 11:06:21,074 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-03 11:06:21,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 11:06:21,074 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-03 11:06:21,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-03 11:06:21,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 11:06:21,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 11:06:21,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 11:06:21,075 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-03 11:06:21,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 11:06:21,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 11:06:21,076 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_02b78173-2d6d-475d-b684-387cc48bf82c/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_02b78173-2d6d-475d-b684-387cc48bf82c/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c20edfd7ede05443471560aa2c7be34d4e8c171 [2020-12-03 11:06:21,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 11:06:21,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 11:06:21,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 11:06:21,361 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 11:06:21,363 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 11:06:21,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_02b78173-2d6d-475d-b684-387cc48bf82c/bin/ukojak/../../sv-benchmarks/c/bitvector/gcd_4.c [2020-12-03 11:06:21,433 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02b78173-2d6d-475d-b684-387cc48bf82c/bin/ukojak/data/3a2b1e2ba/62095c9611fb459c89baba97d670b76c/FLAG5cf7683a1 [2020-12-03 11:06:21,866 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 11:06:21,866 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_02b78173-2d6d-475d-b684-387cc48bf82c/sv-benchmarks/c/bitvector/gcd_4.c [2020-12-03 11:06:21,879 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02b78173-2d6d-475d-b684-387cc48bf82c/bin/ukojak/data/3a2b1e2ba/62095c9611fb459c89baba97d670b76c/FLAG5cf7683a1 [2020-12-03 11:06:22,253 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_02b78173-2d6d-475d-b684-387cc48bf82c/bin/ukojak/data/3a2b1e2ba/62095c9611fb459c89baba97d670b76c [2020-12-03 11:06:22,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 11:06:22,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 11:06:22,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 11:06:22,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 11:06:22,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 11:06:22,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:06:22" (1/1) ... [2020-12-03 11:06:22,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a114e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:06:22, skipping insertion in model container [2020-12-03 11:06:22,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:06:22" (1/1) ... [2020-12-03 11:06:22,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 11:06:22,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 11:06:22,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:06:22,474 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 11:06:22,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:06:22,504 INFO L208 MainTranslator]: Completed translation [2020-12-03 11:06:22,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:06:22 WrapperNode [2020-12-03 11:06:22,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 11:06:22,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 11:06:22,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 11:06:22,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 11:06:22,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:06:22" (1/1) ... [2020-12-03 11:06:22,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:06:22" (1/1) ... [2020-12-03 11:06:22,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 11:06:22,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 11:06:22,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 11:06:22,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 11:06:22,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:06:22" (1/1) ... [2020-12-03 11:06:22,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:06:22" (1/1) ... [2020-12-03 11:06:22,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:06:22" (1/1) ... [2020-12-03 11:06:22,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:06:22" (1/1) ... [2020-12-03 11:06:22,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:06:22" (1/1) ... [2020-12-03 11:06:22,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:06:22" (1/1) ... [2020-12-03 11:06:22,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:06:22" (1/1) ... [2020-12-03 11:06:22,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 11:06:22,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 11:06:22,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 11:06:22,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 11:06:22,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:06:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02b78173-2d6d-475d-b684-387cc48bf82c/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-03 11:06:22,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 11:06:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 11:06:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 11:06:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 11:06:22,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-12-03 11:06:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-12-03 11:06:23,124 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 11:06:23,124 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-03 11:06:23,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:06:23 BoogieIcfgContainer [2020-12-03 11:06:23,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 11:06:23,128 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-03 11:06:23,128 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-03 11:06:23,141 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-03 11:06:23,141 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:06:23" (1/1) ... [2020-12-03 11:06:23,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 11:06:23,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:23,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2020-12-03 11:06:23,200 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2020-12-03 11:06:23,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-03 11:06:23,202 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:23,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:06:23,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:23,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2020-12-03 11:06:23,411 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2020-12-03 11:06:23,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 11:06:23,411 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:23,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:06:23,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:23,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2020-12-03 11:06:23,565 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2020-12-03 11:06:23,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-03 11:06:23,573 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:23,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:06:23,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:23,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2020-12-03 11:06:23,800 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2020-12-03 11:06:23,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-03 11:06:23,801 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:23,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:06:23,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:23,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2020-12-03 11:06:23,911 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2020-12-03 11:06:23,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-03 11:06:23,911 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:23,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:06:24,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:24,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2020-12-03 11:06:24,208 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2020-12-03 11:06:24,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-03 11:06:24,209 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:06:24,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:24,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2020-12-03 11:06:24,492 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2020-12-03 11:06:24,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 11:06:24,492 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:24,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-03 11:06:24,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:24,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 32 states and 43 transitions. [2020-12-03 11:06:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2020-12-03 11:06:24,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-03 11:06:24,692 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:24,793 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:06:24,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:24,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 33 states and 44 transitions. [2020-12-03 11:06:24,985 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2020-12-03 11:06:24,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-03 11:06:24,986 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:25,086 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-03 11:06:25,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:25,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 36 states and 48 transitions. [2020-12-03 11:06:25,334 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2020-12-03 11:06:25,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-03 11:06:25,336 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:25,361 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-03 11:06:25,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:25,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 37 states and 50 transitions. [2020-12-03 11:06:25,540 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2020-12-03 11:06:25,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-03 11:06:25,541 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:06:25,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:25,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 41 states and 55 transitions. [2020-12-03 11:06:25,961 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2020-12-03 11:06:25,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-03 11:06:25,962 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:26,041 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-03 11:06:26,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:26,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 45 states and 66 transitions. [2020-12-03 11:06:26,360 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2020-12-03 11:06:26,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-03 11:06:26,361 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:26,467 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-03 11:06:26,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:26,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 49 states and 75 transitions. [2020-12-03 11:06:26,987 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 75 transitions. [2020-12-03 11:06:26,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-03 11:06:26,988 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:27,024 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-03 11:06:27,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:27,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 51 states and 81 transitions. [2020-12-03 11:06:27,212 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 81 transitions. [2020-12-03 11:06:27,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-03 11:06:27,213 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:27,227 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-03 11:06:27,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:27,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 49 states and 76 transitions. [2020-12-03 11:06:27,389 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 76 transitions. [2020-12-03 11:06:27,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-03 11:06:27,394 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:27,434 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-03 11:06:27,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:27,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 47 states and 69 transitions. [2020-12-03 11:06:27,523 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 69 transitions. [2020-12-03 11:06:27,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-03 11:06:27,524 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:27,724 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:06:28,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:28,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 55 states and 80 transitions. [2020-12-03 11:06:28,892 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2020-12-03 11:06:28,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-03 11:06:28,895 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:28,998 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 25 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:06:29,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:29,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 65 states and 94 transitions. [2020-12-03 11:06:29,778 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 94 transitions. [2020-12-03 11:06:29,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-03 11:06:29,779 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:29,913 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:06:30,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:30,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 69 states and 101 transitions. [2020-12-03 11:06:30,619 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 101 transitions. [2020-12-03 11:06:30,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-03 11:06:30,621 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:30,681 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:06:30,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:30,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 71 states and 104 transitions. [2020-12-03 11:06:30,827 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2020-12-03 11:06:30,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-03 11:06:30,828 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:31,063 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-03 11:06:32,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:32,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 79 states and 120 transitions. [2020-12-03 11:06:32,540 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 120 transitions. [2020-12-03 11:06:32,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-03 11:06:32,541 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:32,728 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:06:33,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:33,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 83 states and 128 transitions. [2020-12-03 11:06:33,579 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 128 transitions. [2020-12-03 11:06:33,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-03 11:06:33,580 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:33,753 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 22 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:06:34,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:34,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 87 states and 138 transitions. [2020-12-03 11:06:34,713 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 138 transitions. [2020-12-03 11:06:34,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-03 11:06:34,714 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:06:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:06:34,883 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 8 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:06:35,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:06:35,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 33 states and 34 transitions. [2020-12-03 11:06:35,948 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-12-03 11:06:35,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 11:06:35,950 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 25 iterations. [2020-12-03 11:06:35,957 INFO L765 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2020-12-03 11:06:36,145 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-03 11:06:36,149 INFO L569 CodeCheckObserver]: Invariant with dag size 36 [2020-12-03 11:06:36,159 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-03 11:06:36,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 11:06:36 ImpRootNode [2020-12-03 11:06:36,160 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-03 11:06:36,160 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 11:06:36,160 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 11:06:36,161 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 11:06:36,161 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:06:23" (3/4) ... [2020-12-03 11:06:36,165 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 11:06:36,171 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-12-03 11:06:36,176 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-12-03 11:06:36,177 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-03 11:06:36,177 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-03 11:06:36,177 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 11:06:36,234 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_02b78173-2d6d-475d-b684-387cc48bf82c/bin/ukojak/witness.graphml [2020-12-03 11:06:36,234 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 11:06:36,236 INFO L168 Benchmark]: Toolchain (without parser) took 13977.81 ms. Allocated memory was 130.0 MB in the beginning and 272.6 MB in the end (delta: 142.6 MB). Free memory was 99.1 MB in the beginning and 238.9 MB in the end (delta: -139.8 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2020-12-03 11:06:36,236 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 83.9 MB. Free memory was 41.6 MB in the beginning and 41.5 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:06:36,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.83 ms. Allocated memory is still 130.0 MB. Free memory was 98.8 MB in the beginning and 106.4 MB in the end (delta: -7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 11:06:36,238 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.62 ms. Allocated memory is still 130.0 MB. Free memory was 106.0 MB in the beginning and 104.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 11:06:36,238 INFO L168 Benchmark]: Boogie Preprocessor took 23.28 ms. Allocated memory is still 130.0 MB. Free memory was 104.7 MB in the beginning and 103.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:06:36,239 INFO L168 Benchmark]: RCFGBuilder took 559.45 ms. Allocated memory is still 130.0 MB. Free memory was 103.5 MB in the beginning and 85.4 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-03 11:06:36,240 INFO L168 Benchmark]: CodeCheck took 13031.72 ms. Allocated memory was 130.0 MB in the beginning and 272.6 MB in the end (delta: 142.6 MB). Free memory was 85.4 MB in the beginning and 241.0 MB in the end (delta: -155.6 MB). Peak memory consumption was 144.0 MB. Max. memory is 16.1 GB. [2020-12-03 11:06:36,241 INFO L168 Benchmark]: Witness Printer took 73.67 ms. Allocated memory is still 272.6 MB. Free memory was 241.0 MB in the beginning and 238.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 11:06:36,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 30 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.7s, OverallIterations: 25, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33554432 SDtfs, 74630498 SDslu, 16777216 SDs, 0 SdLazy, 316451742 SolverSat, 62980772 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4076 GetRequests, 3603 SyntacticMatches, 265 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23709 ImplicationChecksByTransitivity, 10.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 478 NumberOfCodeBlocks, 478 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 454 ConstructedInterpolants, 0 QuantifiedInterpolants, 68560 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 218/637 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: 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: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: 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: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((((((2 * b + 9 <= a && a <= 3 * b + 9) && a <= 9) || ((b + a <= 63 && 63 <= b + a) && b == 18)) || (a == 63 && b == 18)) || ((63 <= 2 * b + a && 2 * b + a <= 63) && b == 18)) || ((3 * b + a <= 63 && 63 <= 3 * b + a) && b == 18)) || ((a <= b && b + 9 <= 2 * a) && a <= 9) - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 83.9 MB. Free memory was 41.6 MB in the beginning and 41.5 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 243.83 ms. Allocated memory is still 130.0 MB. Free memory was 98.8 MB in the beginning and 106.4 MB in the end (delta: -7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.62 ms. Allocated memory is still 130.0 MB. Free memory was 106.0 MB in the beginning and 104.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.28 ms. Allocated memory is still 130.0 MB. Free memory was 104.7 MB in the beginning and 103.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 559.45 ms. Allocated memory is still 130.0 MB. Free memory was 103.5 MB in the beginning and 85.4 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 13031.72 ms. Allocated memory was 130.0 MB in the beginning and 272.6 MB in the end (delta: 142.6 MB). Free memory was 85.4 MB in the beginning and 241.0 MB in the end (delta: -155.6 MB). Peak memory consumption was 144.0 MB. Max. memory is 16.1 GB. * Witness Printer took 73.67 ms. Allocated memory is still 272.6 MB. Free memory was 241.0 MB in the beginning and 238.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...