./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cd2d4f18-9bc3-42b4-8171-316b8896ae8f/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cd2d4f18-9bc3-42b4-8171-316b8896ae8f/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cd2d4f18-9bc3-42b4-8171-316b8896ae8f/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cd2d4f18-9bc3-42b4-8171-316b8896ae8f/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cd2d4f18-9bc3-42b4-8171-316b8896ae8f/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cd2d4f18-9bc3-42b4-8171-316b8896ae8f/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9918b49e0d76e4ce36b6a6760021b33460a8ae9b ............................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 18:46:31,079 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 18:46:31,081 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 18:46:31,088 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 18:46:31,088 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 18:46:31,089 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 18:46:31,090 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 18:46:31,091 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 18:46:31,092 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 18:46:31,093 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 18:46:31,093 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 18:46:31,093 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 18:46:31,094 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 18:46:31,095 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 18:46:31,095 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 18:46:31,096 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 18:46:31,096 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 18:46:31,098 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 18:46:31,099 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 18:46:31,100 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 18:46:31,101 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 18:46:31,101 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 18:46:31,103 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 18:46:31,103 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 18:46:31,103 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 18:46:31,103 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 18:46:31,104 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 18:46:31,104 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 18:46:31,105 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 18:46:31,105 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 18:46:31,105 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 18:46:31,105 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 18:46:31,106 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 18:46:31,106 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 18:46:31,106 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 18:46:31,106 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 18:46:31,106 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cd2d4f18-9bc3-42b4-8171-316b8896ae8f/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-01 18:46:31,113 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 18:46:31,113 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 18:46:31,114 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 18:46:31,114 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-01 18:46:31,114 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 18:46:31,114 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 18:46:31,114 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 18:46:31,114 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 18:46:31,114 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 18:46:31,114 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 18:46:31,115 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 18:46:31,115 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 18:46:31,115 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 18:46:31,115 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 18:46:31,115 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 18:46:31,115 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 18:46:31,115 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 18:46:31,115 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 18:46:31,115 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-01 18:46:31,115 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-01 18:46:31,115 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 18:46:31,115 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 18:46:31,115 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-01 18:46:31,116 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 18:46:31,116 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 18:46:31,116 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 18:46:31,116 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-01 18:46:31,116 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 18:46:31,116 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 18:46:31,116 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_cd2d4f18-9bc3-42b4-8171-316b8896ae8f/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9918b49e0d76e4ce36b6a6760021b33460a8ae9b [2018-12-01 18:46:31,133 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 18:46:31,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 18:46:31,141 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 18:46:31,142 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 18:46:31,142 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 18:46:31,142 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cd2d4f18-9bc3-42b4-8171-316b8896ae8f/bin-2019/ukojak/../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i [2018-12-01 18:46:31,175 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd2d4f18-9bc3-42b4-8171-316b8896ae8f/bin-2019/ukojak/data/58e28bd49/3423d4006c74426281f47572ae04fc3b/FLAG1d3aa40ed [2018-12-01 18:46:31,464 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 18:46:31,464 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cd2d4f18-9bc3-42b4-8171-316b8896ae8f/sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i [2018-12-01 18:46:31,467 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd2d4f18-9bc3-42b4-8171-316b8896ae8f/bin-2019/ukojak/data/58e28bd49/3423d4006c74426281f47572ae04fc3b/FLAG1d3aa40ed [2018-12-01 18:46:31,905 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cd2d4f18-9bc3-42b4-8171-316b8896ae8f/bin-2019/ukojak/data/58e28bd49/3423d4006c74426281f47572ae04fc3b [2018-12-01 18:46:31,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 18:46:31,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 18:46:31,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 18:46:31,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 18:46:31,912 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 18:46:31,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:46:31" (1/1) ... [2018-12-01 18:46:31,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff7353e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:46:31, skipping insertion in model container [2018-12-01 18:46:31,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:46:31" (1/1) ... [2018-12-01 18:46:31,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 18:46:31,928 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 18:46:32,012 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 18:46:32,014 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 18:46:32,024 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 18:46:32,032 INFO L195 MainTranslator]: Completed translation [2018-12-01 18:46:32,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:46:32 WrapperNode [2018-12-01 18:46:32,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 18:46:32,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 18:46:32,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 18:46:32,033 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 18:46:32,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:46:32" (1/1) ... [2018-12-01 18:46:32,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:46:32" (1/1) ... [2018-12-01 18:46:32,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 18:46:32,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 18:46:32,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 18:46:32,053 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 18:46:32,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:46:32" (1/1) ... [2018-12-01 18:46:32,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:46:32" (1/1) ... [2018-12-01 18:46:32,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:46:32" (1/1) ... [2018-12-01 18:46:32,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:46:32" (1/1) ... [2018-12-01 18:46:32,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:46:32" (1/1) ... [2018-12-01 18:46:32,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:46:32" (1/1) ... [2018-12-01 18:46:32,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:46:32" (1/1) ... [2018-12-01 18:46:32,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 18:46:32,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 18:46:32,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 18:46:32,065 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 18:46:32,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:46:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd2d4f18-9bc3-42b4-8171-316b8896ae8f/bin-2019/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 [2018-12-01 18:46:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 18:46:32,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 18:46:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-01 18:46:32,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-01 18:46:32,271 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 18:46:32,271 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-01 18:46:32,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:46:32 BoogieIcfgContainer [2018-12-01 18:46:32,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 18:46:32,272 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-01 18:46:32,272 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-01 18:46:32,279 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-01 18:46:32,279 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:46:32" (1/1) ... [2018-12-01 18:46:32,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:46:32,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:46:32,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2018-12-01 18:46:32,309 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2018-12-01 18:46:32,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-01 18:46:32,310 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:46:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:46:32,372 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:46:32,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:46:32,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:46:32,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2018-12-01 18:46:32,412 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-12-01 18:46:32,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 18:46:32,413 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:46:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:46:32,426 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:46:32,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:46:32,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:46:32,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2018-12-01 18:46:32,479 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2018-12-01 18:46:32,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 18:46:32,479 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:46:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:46:32,491 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:46:32,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:46:32,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:46:32,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2018-12-01 18:46:32,573 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2018-12-01 18:46:32,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-01 18:46:32,576 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:46:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:46:32,587 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:46:32,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:46:32,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:46:32,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2018-12-01 18:46:32,667 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2018-12-01 18:46:32,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 18:46:32,667 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:46:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:46:32,679 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:46:32,705 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:46:32,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:46:32,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2018-12-01 18:46:32,764 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2018-12-01 18:46:32,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-01 18:46:32,764 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:46:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:46:32,777 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:46:32,821 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:46:33,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:46:33,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 24 states and 40 transitions. [2018-12-01 18:46:33,038 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 40 transitions. [2018-12-01 18:46:33,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-01 18:46:33,038 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:46:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:46:33,056 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:46:33,342 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:46:33,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:46:33,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 25 transitions. [2018-12-01 18:46:33,843 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2018-12-01 18:46:33,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 18:46:33,845 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:46:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:46:33,862 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:46:34,320 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:46:35,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:46:35,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 27 transitions. [2018-12-01 18:46:35,296 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2018-12-01 18:46:35,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 18:46:35,296 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:46:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:46:35,310 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:46:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-01 18:46:35,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:46:35,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 18 states and 19 transitions. [2018-12-01 18:46:35,514 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-12-01 18:46:35,514 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 18:46:35,514 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2018-12-01 18:46:35,521 INFO L779 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-12-01 18:46:35,570 INFO L583 CodeCheckObserver]: Invariant with dag size 15 [2018-12-01 18:46:35,576 INFO L583 CodeCheckObserver]: Invariant with dag size 36 [2018-12-01 18:46:35,577 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-01 18:46:35,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:46:35 ImpRootNode [2018-12-01 18:46:35,577 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-01 18:46:35,578 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 18:46:35,578 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 18:46:35,578 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 18:46:35,578 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:46:32" (3/4) ... [2018-12-01 18:46:35,580 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 18:46:35,584 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-01 18:46:35,586 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-01 18:46:35,586 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-01 18:46:35,586 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-01 18:46:35,602 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (y == 18 && 2 * x == 7 * y) && x == \result + 3 * y [2018-12-01 18:46:35,614 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cd2d4f18-9bc3-42b4-8171-316b8896ae8f/bin-2019/ukojak/witness.graphml [2018-12-01 18:46:35,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 18:46:35,615 INFO L168 Benchmark]: Toolchain (without parser) took 3707.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -154.9 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2018-12-01 18:46:35,616 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:46:35,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 123.66 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-01 18:46:35,616 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.47 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:46:35,616 INFO L168 Benchmark]: Boogie Preprocessor took 11.37 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 18:46:35,617 INFO L168 Benchmark]: RCFGBuilder took 206.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -155.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-01 18:46:35,617 INFO L168 Benchmark]: CodeCheck took 3305.69 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 48.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -15.7 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-12-01 18:46:35,618 INFO L168 Benchmark]: Witness Printer took 36.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:46:35,619 INFO L336 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, 21 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 10 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2608 SDtfs, 744 SDslu, 8 SDs, 0 SdLazy, 7950 SolverSat, 2398 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1121 GetRequests, 982 SyntacticMatches, 21 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6536 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 8988 SizeOfPredicates, 57 NumberOfNonLiveVariables, 346 ConjunctsInSsa, 164 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 5/75 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (y == 18 && 2 * x == 7 * y) && x == \result + 3 * y - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((((((b == y && x == 63) && a + y == x) && y == 18) || (((b + x == 4 * y && x == 63) && a + 3 * y == x) && y == 18)) || (((b + 2 * x == 7 * y && x == 63) && a + 3 * y == x) && y == 18)) || (((x == 2 * y + a && b == y) && x == 63) && y == 18)) || (((b == y && x == 63) && a + 3 * y == x) && y == 18)) || (((b == y && x == 63) && a == x) && y == 18) - 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 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 123.66 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.47 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.37 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 206.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -155.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * CodeCheck took 3305.69 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 48.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -15.7 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * Witness Printer took 36.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...